Background/Aim: To investigate the effects of acitretin treatment on insulin resistance (IR) and adipokines, particularly retinol-binding protein (RBP)-4. Methods: Thirty-four patients with chronic plaque psoriasis and a control group of 34 healthy volunteers were recruited in the study. Screening for the parameters was performed before starting and after 3 months of acitretin treatment in the psoriasis group. The control group was only evaluated at the beginning of the study and did not receive placebo. We could not compare our results with a placebo control group because of ethical reasons. Results: Basal adiponectin (p = 0.01), insulin (p < 0.0001) levels and homeostasis model assessment (HOMA) IR (p < 0.0001) were significantly higher in psoriasis patients. After the treatment, insulin (p = 0.014), C peptide (p = 0.011), RBP-4 (p < 0.0001) levels and HOMA-IR (p = 0.008) decreased significantly. Posttreatment leptin (p = 0.036) levels were significantly lower than those of the controls. Posttreatment adiponectin (p = 0.005) and insulin (p = 0.048) levels were higher than those of the controls. Conclusions: This study showed for the first time that RBP-4 levels and IR are decreased significantly with acitretin treatment. This finding is very important in psoriasis patients because psoriasis may cause insulin resistance and diabetes. Further experimental and clinical studies are needed to clarify the effect of acitretin on adipocyte structure and behavior.
Background: There are a limited number of studies investigating the side effects and effectiveness of various doses of isotretinoin (ISO). We have previously shown that high-dose ISO affects pituitary hormones. Objectives: To our knowledge, there is no study in the literature looking into the effects of various doses of ISO on pituitary hormones. We searched pituitary hormones in three groups of different doses in acne patients. Methods: We included 105 acne vulgaris patients from two different centers. We divided the patients into three groups; the first group received 0.5-1 mg/kg/day, the second 0.2-0.5 mg/kg/day and the third intermittent 0.5-1 mg/kg/day (only 1 week in 1 month) ISO treatment. Blood samples were collected for biochemistry and hormone analysis, before the treatment and after 3 months. Results: After 3 months of treatment with ISO, luteinizing hormone (LH) (p < 0.001), prolactin (p < 0.001), total testosterone (p < 0.001), adrenocorticotropic hormone (ACTH) (p < 0.001), cortisol (p < 0.001), insulin-like growth factor-binding protein 3 (p < 0.001), insulin-like growth factor 1 (IGF-1) (p = 0.002), growth hormone (GH) (p = 0.002) and free T3 (fT3) (p < 0.001) levels had decreased significantly. Furthermore, we split data into three different groups. Among the patients receiving intermittent-dose ISO, LH, ACTH, IGF-1, GH and fT3 measurements lost significance. Most of the significant measurements observed in the whole group were also significant among the patients receiving high-dose ISO. Additionally, dehydroepiandrosterone sulfate (p = 0.003) levels increased, and free T4 levels decreased significantly. Conclusions: ISO affects pituitary hormones at all of these three doses. The differences in pituitary hormones are more pronounced in high-dose treatment. The weakest effect was observed in the intermittent-dose group. Choosing lower doses of ISO may decrease side effects, however the effectiveness of the treatment may also be diminished. ISO, by affecting the PPARγ/RXR system, may affecting hormone systems. These changes in various hormone systems may be related to the effectiveness of ISO.
Bu çalışma, polikistik over sendromunda (PKOS) hormon düzeyleriyle çinko (Zn), krom (Cr), kobalt (Co) ve mangan (Mn) konsantrasyonlarının ilişkisini incelemek için tasarlanmıştır. Materyal ve Metot: Çalışmaya endokrinoloji polikliniğine başvuran 18-40 yaş arası PKOS teşhisi konulan 40 kadın ve aynı sayıda sağlıklı gönüllü alındı. Serum Zn, Cr, Mn, Foliküler stimüle edici hormon (FSH), Lüteinleştirici Hormon (LH), Dehidroepiandrosteron (DHEA-S), Total Testosteron (TT), Seks hormonu bağlayıcı globulin (SHBG), insülin, glukoz, kolesterol, trigliserit, yüksek yoğunluklu lipoproteinler (HDL) ve düşük yoğunluklu lipoproteinler (LDL) konsantrasyonları analiz edildi. Bulgular: PKOS grubunda insülin, glukoz, trigliserit, DHEA-S düzeyleri kontrol grubuna göre anlamlı derecede yüksek iken, FSH ve Mn düzeyleri HOMA-IR grubunda kontrol grubuna göre anlamlı derecede düşüktü (p <0.05). Sonuç: Çalışmamızda serum eser elementleri ile PKOS arasında bir ilişki saptanırken, IR'nin dahil edilmesiyle ilişki düzeyi artmaktadır. Ayrıca, mangan eksikliği varlığında insülin direncinin doğrudan oksidatif strese yol açıp açamayacağını belirlemek için bu elementin takviyesinin etkilerini değerlendiren ek çalışmalara ihtiyaç olacağını da düşünmekteyiz.
ÖzetAmaç: İdrar kültürü, üriner sistem infeksiyonlarının tanısında altın standarddır. Kantitatif sonuç veren tam otomatik idrar analizörü (TOİA) de idrar tahlili için yaygın olarak kullanılmaktadır. Bu cihaz mikroskopik analiz yaparak eritrosit, lökosit ve epitel hücrelerinin yanı sıra bakteri ve renal elementleri de saptamaktadır. Bu çalışmada, klinisyenlerin üriner sistem infeksiyonuna hızlı tanı koyabilmek amacıyla kullandıkları TOİA'nın idrar kül-türleriyle retrospektif olarak karşılaştırılması amaçlandı. 4 cfu/ml were included in the comparison. Results: Of the total FAUA and culture results, 11.7% were incompatible in terms of the number of leukocytes including leukocytenegative/culture-positive (0.4%) and leukocyte-positive/culturenegative (11.3%) results, and 6.6% were incompatible in terms of the number of germs including culture-positive/germ-negative (5%) results and germ-positive/culture-negative (1.6%) results. Conclusions: FAUA often used by clinicians for rapid diagnosis of urinary tract infection will contribute to the evaluation of the culture in a more efficient way, however, it should not replace the urine culture. Klimik Dergisi 2013; 26(2): 68-71.
Plasminogen activator inhibitor-1 (PAI-1); gene polymorphism is the main inhibitor of fibrinolysis, and high levels may increase the risk of cardiovascular disease. The polymorphism of the 4G/5G gene is located in the PAI-1 gene promoter region. In this study, our objective is to investigate the genotype and allele distributions of PAI-1 gene polymorphisms in patients with cerebrovascular disease, coagulation disorder and those pre-diagnosed with hypertension. The results of the analysis PAI-1 gene polymorphism in 109 patients were evaluated retrospectively. These patients were divided into three groups as cerebrovascular disease, hypertension and coagulation disorder. In the analysis, CVD T (cardiovascular disease thrombosis) stripassay kit which is based on reverse hybridization technique was used. No statistically significant difference was found between three groups in terms of genotype and allele frequencies. PAI-1 4G/5G genotype in cerebrovascular disease and hypertension groups were found to be statistically significant compared with 4G/4G genotype, in terms of intra group comparison of genotype distrubutions of the group. In the group pre-diagnosed with coagulation disorder PAI-1 4G/5G genotype were found to be statistically significant compared with 4G/4G and 5G/5G. In conclusion; PAI-1 4G/5G genotype may be evaluated a risk factor in patients cerebrovascular disease, coagulation disorder and hypertension.
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