Cíl studie: Prozkoumat vztahy zavedených a zvažovaných prediktorů přežití u hemodialyzovaných pacientů a zjistit jejich spojitost s přítomností metabolického syndromu (MS). Typ studie: Observační průřezová studie. Název a sídlo pracoviště: Ústav klinické biochemie a hematologie, Univerzita Karlova v Praze, Lékařská fakulta v Plzni a Fakultní nemocnice Plzeň. Materiál a metoda: 80 hemodialyzovaných pacientů (věk 67,0 [61,0–73,5] let, BMI 27,5 [22,7–33,0] kg/m2; medián [mezikvartilové rozpětí], 37 žen) bylo rozděleno do 2 skupin podle defi nice MS (NCEP ATP III) (39 pacientů s MS). Vylučovací kritérium: CRP > 30 mg/l. Vzorky séra a plazmy byly odebírány těsně před zahájením hemodialýzy. Sledovány byly následující parametry: adiponektin (včetně vysokomolekulární formy), leptin, TNF-alfa, PAI-1, ADMA, inzulin, CRP, albumin. K hodnocení rozdílů mezi skupinami byl použit Wilcoxonův dvouvýběrový test. Výsledky: U adiponektinu a leptinu byly nalezeny rozdíly mezi pohlavími v rámci skupin. Koncentrace adiponektinu a podíl jeho vysokomolekulární (HMW) formy byly vyšší u žen ve skupině bez MS (95% CI pro rozdíl mediánů 0,45–10,33 mg/l, respektive 0,006–0,10, p < 0,05), ale mezi pohlavími u pacientů s MS se významně nelišily. Na druhou stranu, hladiny leptinu byly vyšší u žen pouze ve skupině s MS (CI 7,30–52,80 μg/l, p < 0,05). U pacientů s MS byly u obou pohlaví pozorovány nižší hladiny adiponektinu (CI 2,57–8,78 mg/l pro muže a 5,90–14,94 mg/l pro ženy, p < 0,001), nižší podíl HMW formy (CI 0,02–0,13 pro muže a 0,10–0,21 pro ženy, p < 0,001), vyšší hladiny leptinu (CI 11,50–48,10 μg/l pro muže a 31,60–78,40 μg/l pro ženy, p < 0,001) a vyšší hladiny inzulinu (CI 5,4–14,5 mIU/l, p < 0,001). U následujících parametrů nebyly zjištěny statisticky významné rozdíly mezi skupinami: ADMA (CI -0,32–0,13 μmol/l, p = 0,45), CRP (CI -1,55–3,05 mg/l, p = 0,59), PAI-1 (CI -0,7–6,3 μg/l, p = 0,16), TNF-alfa (CI -0,46–0,12 ng/l, p = 0,28) a albumin (CI -2,1–0,8 g/l, p = 0,41). Závěr: Koncentrace adiponektinu a leptinu odrážely přítomnost MS, hladiny zavedených prediktorů přežití, CRP a albuminu, se ale překvapivě mezi skupinami nelišily. Tyto výsledky by nasvědčovaly omezenému významu MS v prognóze hemodialyzovaných pacientů., Objective: To explore the relationships of established or putative survival predictors in hemodialysis patients and their connection with the presence of the metabolic syndrome (MS). Design: Observational, cross-sectional. Settings: Department of Clinical Biochemistry and Hematology, Faculty Hospital and Charles University – Faculty of Medicine in Pilsen, Czech Republic. Material and methods: 80 hemodialyzed patients (median [IQR] of age = 67.0 [61.0–73.5] years, BMI = 27.5 [22.7–33.0] kg/m2, 37 females) were divided into 2 groups according to NCEP ATP III defi nition of the MS (39 patients with MS). Exclusion criterion: CRP level > 30 mg/l. Serum and plasma samples were taken prior to hemodialysis initiation. Following parameters were examined: adiponectin (including high-molecular weight form), leptin, TNF-alpha, PAI-1, ADMA, insulin, CRP, albumin. Comparison between groups was done using Wilcoxon rank-sum test for independent samples. Results: Gender differences have been found in adiponectin and leptin levels within the groups. Adiponectin levels and the portion of its high-molecular weight (HMW) form were higher in females in the group without MS (95% CI for the difference of medians 0.45–10.33 mg/l and 0.006-0.10, p < 0.05), respectively, but were not different between sexes in the patients with MS. On the other hand, leptin levels were different (higher in females) only in the group with MS (CI 7.30–52.80 μg/l, p < 0.05). Both for males (M) and females (F), the group with MS showed lower adiponectin levels (CI 2.57–8.78 mg/l for M and 5.90–14.94 mg/l for F, p < 0.001), lower portion of HMW-adiponectin (CI 0.02–0.13 for M and 0.10–0.21 for F, p < 0.001), higher levels of leptin (CI 11.50–48.10 μg/l for M and 31.60–78.40 μg/l for F, p < 0.001) and higher levels of insulin (CI 5.4–14.5 mIU/l, p < 0,001). No statistically signifi cant differences were found in ADMA (CI 0.32–0.13 μmol/l, p = 0.45), CRP (CI 1.55–3.05 mg/l, p = 0.59), PAI-1 (CI 0.7–6.3 μg/l, p = 0.16), TNF-alpha (CI 0.46–0.12 ng/l, p = 0.28) and albumin levels (CI 2.1–0.8, p = 0.41). Conclusion: The concentration of adiponectin and leptin well refl ected the presence of the metabolic syndrome. Surprisingly, levels of conventional survival predictors (CRP, albumin) did not vary between the groups. These fi ndings may suggest a limited relevance of the MS concept in the prognosis of HD patients., Vostrý Michal, Rajdl D., Eiselt J., Malánová L., Pikner R., Trefil L., Racek J., and Lit.: 18
Psoriasis patients are often susceptible to cardiovascular diseases (CVD), including atherosclerosis. Traditional markers (biochemical and inflammatory) and diagnostic tools could detect occlusive but not subclinical atherosclerosis. Carotid intima-media thickness (CIMT), has recently been recognised as a non invasive diagnostic tool for identification of premature atherosclerosis. Therefore we evaluated 80 psoriasis patients and 80 age sex matched healthy controls for serum leptin levels and apolipoprotein B/apolipoprotein A-I ratio (apoB/apoA-I ratio) in relation with CIMT of carotid artery. Carotid intima-media thickness and carotid plaques were simultaneously measured by carotid sonography. Serum concentration of leptin and apolipoprotein were measured using enzyme-linked immuno sorbent assay (ELISA) and nephelometry respectively. Raised CIMT correlated to age of onset of the disease, serum leptin and apoB/apoA-I ratio in psoriasis patients. Taking into account, values that were above the 75 percentile of the three markers (leptin, apoB/apoA-I ratio and CIMT) the odds ratio was 4.26 (2.06-8.80 CI). Leptin and apoB/apoA-I ratio showed significant cumulative association with CIMT. Results of predictive analysis supports measurement of CIMT along with estimation of serum leptin and apoB/apoA-I ratio for prediction of premature atherosclerosis in psoriasis patients. and K. Asha, S. B. Sharma, A. Singal, A. Aggarwal
INTRODUCTION: Leptin is an adipokine which has a direct relationship to obesity. Our aim was to measure this hormone in pregnant women at three months intervals throughout their pregnancies to determine the serum value of those who developed preeclampsia. MATERIAL AND METHODS: We followed 19 women (median age 24.8 +/- 5.7 years) with pre-gestational Body Mass Index (BMI) less than 25 kg/m2, 21 (median age 26.1 +/- 4.6 years) with BMI higher than 25 kg/m2 and 16 (median age 30.9 +/- 5.8 years) with Gestational Diabetes Mellitus (GDM) (median age 30.9 +/- 5.8 years), recruited in the 1st trimester of pregnancy. Serum levels of leptin were measured with radioimmunoassay (RIA) technique. RESULTS: In the first trimester of pregnancy leptin levels showed statistically significant differences between normal weight and overweight-obese women (p < 0.001), diabetic women (p < 0.05) and the subgroup of preeclamptic women (p < 0.001). For those women with PGBMI > or = 40 kg/m2 and leptin > or = 40 ng/ml in the second trimester, the Odds Ratio (OR) to develop preeclampsia was of 47.95% CI (4.1-527.2). Analyzing leptin values with ROC curves, the greatest area under the curve (AUC) was for leptin in the second trimester (0.773, CI: 0.634-0.911). CONCLUSION: Women with morbid obesity (BMI > or = 40 kg/m2) had significantly higher levels of serum leptin (p < 0.01) and a value of 40 ng/ml of this hormone seems to be predictive of developing preeclampsia in this group of patients. and H. Mendieta Zerón, VJ. García Solorio, PM. Nava Díaz, A. Garduño Alanís, JG. Santillán Benítez, V. Domínguez García, C. Escobar Briones, E. Denova Gutiérrez