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Određivanje nivoa genske ekspresije rezistina i receptora za rezistin i koncentracije rezistina u krvi pacijenata sa ishemijskom bolesti srca

Measurement of gene expression levels of resistin, resistin receptor and circulating resistin concentrations in blood of patient with ischemic hearth disease

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2018
Disertacija.pdf (3.483Mb)
IzvestajKomisije17020.pdf (291.4Kb)
Author
Munjas, Jelena D.
Mentor
Spasojević-Kalimanovska, Vesna
Committee members
Jelić-Ivanović, Zorana
Kalimanovska-Oštrić, Dimitra
Metadata
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Abstract
Ishemijska bolest srca (IBS) danas predstavlja jedan od glavnih uzroka smrtnosti u svetu. U osnovi ove bolesti se nalazi ateroskleroza koja predstavlja multifaktorsko, hronično inflamatorno oboljenje indukovano ćelijskim i imunološkim odgovorom vaskularnog zida na metaboličku povredu. Humani rezistin je proinflamatorni protein, koji može imati značajnu ulogu u razvoju ateroskleroze i IBS. Ipak, kliničke studije izvedene do sada došle su do oprečnih zaključaka vezane za ulogu ovog proteina u IBS. Kako bi se doprinelo boljem razumevanju uloge rezistina u ishemijskoj bolesti srca, ciljevi ovog istraživanja su bili određivanje nivoa iRNK rezistina i njegovog receptora CAP1 u mononuklearnim ćelijama periferne krvi i koncentracija rezistina u krvi pacijenata sa IBS i zdravih ispitanika, koji su činili kontrolnu grupu (KG), ispitivanje njihove međusobne povezanosti, povezanosti sa genskom ekspresijom IL-6 i CD36 i povezanosti sa lipidnim i nelipidnim faktorima rizika za razvoj ateroskleroze. ...U ovu studiju uključeno je 95 pacijenata sa indikacijama za koronarnu angiografiju i 33 ZI. Nivoi iRNK ispitivanih parametara su određeni metodom qPCR-a, koncentracije rezistina ELISA metodom, a subklase lipoproteinskih čestica elektroforezom na gradijentu nedenaturišućeg poliakrilamidnog gela. Koncentracije rezistina, nivoi iRNK CAP1 i CD36 su bili značajno viši kod svih grupa pacijenata sa IBS u odnosu na KG (p<0,001; p<0,001; p<0,001, redom). Pacijenti sa akutnim koronarnim sindromom su imali značajno više koncentracije rezistina u odnosu na druge grupe pacijenata (pstabilna angina pektoris=0,028; pbez anginoznih tegoba i značajne stenoze=0,003). Nivoi iRNK rezistina se nisu značajno razlikovali između ispitivanih grupa. Pacijenti sa sadržajem malih gustih LDL (mgLDL) čestica ≥50% su imali značajno više koncentracije rezistina (p=0,031) i nivoe iRNK rezistina (p=0,004) u odnosu na pacijente sa sadržajem mgLDL čestica <50%. Nezavisni prediktori koncentracija rezistina su bili kreatinin i ukupni holesterol, adjR2=0,298; nivoa iRNK rezistina dijametar LDL čestica i nivoi iRNK CD36, adjR2=0,192; nivoa iRNK CAP1 trigliceridi i nivoi iRNK CD36, adjR2=0,352; nivoa iRNK CD36 hsCRP, kreatinin i nivoi iRNK CAP1, adjR2=0,505...

Ischemic heart disease (IHD) is one of the major causes of morbidity and loss of quality of life across the globe. The pathogenesis of IHD lays in the development of dyslipidemia, increased proinflammatory processes and consequently atherosclerosis evolvement and progression. Human resistin is a proinflammatory cytokine, with a potential role in atherosclerosis and IHD development. However, clinical studies conducted so far have been inconsistent regarding resistin’s role in IHD. The aims of this study were to determine resistin mRNA levels and mRNA levels of resistin receptor, CAP1, in peripheral blood mononuclear cells (PBMC) and circulating resistin concentrations in IHD patients and healthy subjects (HS), to evaluate their interconnection and association with gene expression levels of IL-6 and CD36, as well as their association with lipid and non-lipid atherosclerosis risk factors. This study included 95 patients requiring coronary angiography and 33 HS. Circulating resistin was me...asured by ELISA; PBMC resistin mRNA was determined by qPCR. LDL and HDL subclasses were determined by gradient gel electrophoresis. Plasma resistin, CAP1 and CD36 mRNA were significantly higher in all groups of IHD patients compared to HS (P<0.001; P<0.001; P<0.001, respectively). Acute coronary syndrome patients had significantly higher plasma resistin compared to other groups of patients (P=0.028; P=0.003). Resistin mRNA levels were not significantly different between any of the investigated groups. Plasma resistin (P=0.031) and resistin mRNA (P=0.004) were significantly higher in patients with the proportion of sdLDL particles ≥50%, compared to the group with the relative proportion of sdLDL particles <50%. Multiple linear regression analysis identified creatinine and total cholesterol as independent predictors of plasma resistin (adjR2=0.289); LDL particle diameter and CD36 mRNA levels of resistin mRNA (adjR2=0.192); TG and CD36 mRNA of CAP1 mRNA (adjR2=0.376); hsCRP, creatinine and CAP1 mRNA levels of CD36 mRNA, (adjR2=0.505)...

Faculty:
Универзитет у Београду, Фармацеутски факултет
Date:
28-03-2018
Projects:
  • Interactive role of dyslipidemia, oxidative stress and inflammation in atherosclerosis and other diseases: genetic and biochemical markers (RS-175035)
Keywords:
rezistin / resistin / CAP1 / CAP1 / CD36 / ischemic heart disease / sdLDL particles / CD36 / ishemijska bolest srca / male guste LDL čestice
[ Google Scholar ]
Handle
https://hdl.handle.net/21.15107/rcub_nardus_9554
URI
http://eteze.bg.ac.rs/application/showtheses?thesesId=5843
https://nardus.mpn.gov.rs/handle/123456789/9554
https://fedorabg.bg.ac.rs/fedora/get/o:17745/bdef:Content/download
http://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=2048261986

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