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    Effect of alterations in apoptotic pathway on development of metabolic syndrome in patients with psoriasis vulgaris
    (Wiley, 2017) Korkmaz, S.; Korkmaz, H.
    Background An increase in the incidence of metabolic syndrome (MetS) has been identified in patients with psoriasis. Objectives To evaluate the role of changes in expression of apoptosis activators [B-cell lymphoma (Bcl)-2-like protein 4 (BAX), cytochrome c (cytC) and caspase-3 (CASP3)] and apoptosis inhibitors [Bcl-2, survivin, cyclin D1 (CCND1), superoxide dismutase (SOD), catalase 3 (CAT), glutathione synthetase (GS), heat shock protein (Hsp)27, Hsp60, Hsp70 and Hsp90] on development of MetS in patients with psoriasis vulgaris. Methods Fifty patients with psoriasis were enrolled; 25 had MetS. Twenty-five healthy people and 25 people with only MetS were included as a control group. Serum fasting blood glucose, urea, creatinine, total cholesterol, high-density lipoprotein cholesterol, low-density lipoprotein cholesterol, triglycerides, thyroid-stimulating hormone, fraction of thyroxine, fasting insulin and highly sensitive C-reactive protein levels were measured. Expression of BAX, cytC, CASP3, Bcl-2, survivin, CCND1, SOD, CAT, GS, and Hsp27, Hsp60, Hsp70 and Hsp90 were measured in peripheral blood. Clinical activation of patients with psoriasis was calculated using Psoriasis Area and Severity Index scores. Results In patients with MetS there was an increase in expression of genes for cytC, survivin and Hsp27, Hsp60 and Hsp90, and a decrease in expression of CCND1. Furthermore, expression levels of CCND1 were identified to be an independent risk factor for MetS development in patients with psoriasis. Conclusions The increase in expression of survivin and Hsp27, Hsp60 and Hsp90, and the decrease in CCND1 expression may be important mechanisms in the development of MetS in patients with psoriasis.
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    Subcutaneous Adipose Tissue Type II Deiodinase Gene Expression Reduced in Obese Individuals with Metabolic Syndrome
    (Johann Ambrosius Barth Verlag Medizinverlage Heidelberg Gmbh, 2016) Akarsu, E.; Korkmaz, H.; Balci, S. Oguzkan; Borazan, E.; Korkmaz, S.; Tarakcioglu, M.
    The present study aimed to evaluate the role of subcutaneous adipose tissue (SAT) type II deiodinase enzyme gene (DIO2) expression in developing metabolic syndrome (MetS). A total of 51 obese patients with MetS and without MetS and 13 healthy subjects enrolled in the study. Body mass index (BMI), waist circumference (WC), waist-to-hip circumference ratio (WHR), hip circumference, and systolic (SBP) and diastolic blood pressures (DBP) of all subjects were recorded. Fasting plasma glucose (FPG), fasting plasma insulin, high density lipoprotein- cholesterol (HDL-C), low density lipoprotein-cholesterol (LDL-C), total cholesterol (TC) and triglyceride (TG) of all subjects were analyzed. Expression of the DIO2 gene in adipose tissue was determined by reverse transcription polymerase chain reaction (qRT-PCR). BMI, WC and WHR were not significantly difference between obese with and without MetS. SBP, DBP, FPG and TG were significantly higher in obese with MetS group than obese without MetS group. While the free triiodothyronine (T3) level was in the normal range in all group, it was significantly lower in the obese with MetS than both obese without MetS and control group. DIO2 expression was significantly lower in the obese with MetS group compared to the control. In correlation analysis, DIO2 expression was negatively correlated with DBP, TG and homeostasis model assessment of insulin resistance (HOMA-IR) levels and positively correlated with free T3. In conclusion, the reduction of SAT DIO2 expression is negatively correlated with DBP and TG levels that are associated with the MetS. This might have an effect on developing MetS. We believe that DIO2 gene may be an important molecular target for future studies in developing targeted treatment options for obese people with MetS.