Wos Açık Erişimli Yayınlar

Permanent URI for this collectionhttps://hdl.handle.net/11727/10754

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    Plasma fetuin-A levels are reduced in patients with hypothyroidism
    (2014) Bakiner, Okan; Bozkirli, Emre; Ertugrul, Derun; Sezgin, Nurzen; Ertorer, Eda
    Objective: To determine plasma fetuin-A levels in hypothyroid patients before and after treatment with L-thyroxine (T-4) and to determine the relation between plasma fetuin-A levels with cardiovascular risk factors. Design: A prospective, controlled, single-blind study. Methods: Forty-four treatment-naive female patients diagnosed with hypothyroidism and 39 age-and sex-matched control subjects were enrolled. Anthropometric measurements, blood pressure, plasma TSH, fetuin-A, free T-4, LDL-cholesterol, triglyceride, C-reactive protein, fibrinogen levels, and brachial artery flow-mediated dilatation were measured. All measurements were repeated after 3 months in the control group and 3 months after the attainment of euthyroidism with (L)-T4 replacement in the hypothyroid group. Baseline data were compared between the two groups. Posttreatment plasma fetuin-A levels of hypothyroid patients were compared with baseline levels of both groups. The relationship between plasma fetuin-A, TSH levels, and other cardiovascular risk factors was evaluated. Results: Plasma fetuin-A levels were similar to 20% lower in hypothyroid female patients compared with the controls (P=0.0001). Fetuin-A levels increased by similar to 20% in hypothyroid patients after achievement of euthyroidism (P=0.0001) and were no longer different compared with controls (P=0.38). There was a negative correlation between plasma TSH and fetuin-A levels (r=-0.79; P=0.001). There was no significant correlation between plasma fetuin-A levels and cardiovascular risk factors within or between groups. The fetuin-A levels were normalized with thyroid hormone treatment. Conclusion: Plasma fetuin-A levels are reduced in female patients with hypothyroidism, which are restored to normal during restoration of euthyroidism. There was no relation with cardiovascular risk factors.
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    Parathyroid Hormone Levels in the Prediction of Ischemic Stroke Risk
    (2017) Dener, Sefik; Celik, Guner; Dogan, Ali; Ozturk, Serefnur; Kulaksizoglu, Sevsen; Ekmekci, Hakan; 0000-0002-7613-2240; 28115793; AAI-8932-2021
    Objective. It was examined whether PTH and 25-dihydroxyvitamin D(25(OH)D) levels, together or separately, are indicators of the risk of stroke. Materials and Methods. This prospective study was performed at two centers. In the study, 100 patients diagnosed with acute ischemic stroke and 100 control individuals in the same age range were examined. In addition to neurological examination, cranial imaging, extensive routine blood chemistry, PTH, and 25(OH) D levels were evaluated in all cases. Stroke risk factors were determined. Logistic regression was used for statistical analysis. Results. A total of 60 patients and 79 control individuals were included in the study. Different estimation models were designed in order to examine the relationship between PTH and 25(OH) D levels with stroke. According to modeling results, it was determined that the most effective predictor for risk of stroke was 25(OH) D levels, followed by hypertension and PTH levels, respectively. Conclusion. PTH and 25(OH) D levels together can make important contributions to determination of stroke risk, and further investigations are needed to understand this relationship more fully.