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Serum leptin concentration in patients with type 2 diabetes

100%

Malecha-Jedraszek A., Burska A., Matyjaszek-Matuszek B., Donica H.

Current Issues in Pharmacy and Medical Sciences

2015

vol. 28

issue 4

236-240

With the increasing importance of early type 2 diabetes (DM2) and obesity detection, it is useful to reevaluate leptin role in these conditions. Our study aimed at investigating circulating leptin concentrations in a group of patients with DM2, and at assessing in detail whether leptin concentrations correlate with selected biochemical, clinical parameters and markers of systemic inflammation in patients with DM2 and in healthy volunteers. In our work, we analysed samples and data drawn from 71 patients aged 61.4 ± 11.7 years, who have been diagnosed with type 2 diabetes, as well as from a healthy control group (HC) consisting of 51 healthy subjects with a mean age of 57.8 ± 13.7 years. Therein, the concentration of leptin in the DM2 patients was significantly higher than in the HC (p < 0.01), with median value of 16.59 (IQR 8.58-33.39) ng/ml in the DM2, vs median value of 6.66 (IQR 4.52-21.40) ng/ml in the HC. In the analysis of variance, higher leptin concentrations were revealed in the DM2 group as compared to the HC, and this figure remained significant after adjusting for gender and age (p < 0.001). Moreover, it was independent of HOMA-IR (p = 0.003). However, the differences in leptin levels between the groups disappeared when additional adjustments for anthropometric parameters (BMI, waist circumference) were applied (p = 0.088). Beyond the aforementioned, significant positive correlations were found in the DM 2 group between leptin level and CRP (r=0.256; p < 0.05) and IL-6 (r = 0.345; p < 0.01). Among the selected variables, only gender and BMI were included in the predictive model explaining the variability of leptin, and, in total, were responsible for 72.6% of the original variation of the studied adipocytokine. The results of this study have led to conclusion that leptin may participate in the complex pathogenesis of DM2 and be a predictor of the development of this disease. As higher concentrations of leptin coexist with obesity, and this situation correlates positively with markers of inflammation (CRP, IL-6), leptin level, hence, should be considered in the pathogenesis of DM2.

A new diagnostic perspective – hyperglycemia in pregnancy – as of the year, 2014

88%

Strawa-Zakoscielna K., Lenart-Lipinska M., Szafraniec A., Rudzki G., Matyjaszek-Matuszek B.

Current Issues in Pharmacy and Medical Sciences

2014

vol. 27

issue 4

246-249

Gestational Diabetes Mellitus (GDM) is a growing epidemiological problem, and it is currently the most common metabolic disorder in pregnancy, as it affects approximately 2-6% of all pregnant women. In 2014, the Polish Diabetic Association introduced significant changes in the diagnosis of hyperglycemia as first diagnosed in pregnancy, based on the recommendations of the IADPSG of 2010 and WHO of 2013. There are now two categories: diabetes in pregnancy, and GDM. These involve different degrees of severity of metabolic complications for the mother and the growing fetus. Establishing a new diagnostic criterion is significant because of the negative impact of hyperglycemia on the fetus (especially in the first trimester), the increased prevalence of malformations or the possibility of spontaneous abortions in early pregnancy.

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2 Current Issues in Pharmacy and Medical Sciences

1 2015

1 2014

2 Matyjaszek-Matuszek B.

1 Burska A.

1 Donica H.

1 Lenart-Lipinska M.

1 Malecha-Jedraszek A.

1 Rudzki G.

1 Strawa-Zakoscielna K.

1 Szafraniec A.

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Serum leptin concentration in patients with type 2 diabetes

A new diagnostic perspective – hyperglycemia in pregnancy – as of the year, 2014