Приказ основних података о документу

Oxidative stress status in blood and lipoprotein fractions in patients with chronic kidney disease

dc.contributor.advisorKotur-Stevuljević, Jelena
dc.contributor.otherČerne, Darko
dc.contributor.otherStefanović, Aleksandra
dc.contributor.otherVekić, Jelena
dc.creatorMiljković, Milica
dc.date.accessioned2019-09-09T15:04:25Z
dc.date.available2019-09-09T15:04:25Z
dc.date.issued2018
dc.identifier.urihttp://eteze.bg.ac.rs/application/showtheses?thesesId=6253
dc.identifier.urihttps://fedorabg.bg.ac.rs/fedora/get/o:18879/bdef:Content/download
dc.identifier.urihttp://vbs.rs/scripts/cobiss?command=DISPLAY&base=70036&RID=2048320098
dc.identifier.urihttp://nardus.mpn.gov.rs/123456789/10295
dc.identifier.urihttps://farfar.pharmacy.bg.ac.rs/handle/123456789/3400
dc.description.abstractHronična bolest bubrega (HBB) predstavlja stanje koje se karakteriše brojnim tradicionalnim i netradicionalnim faktorima rizika za razvoj kardiovaskularnih bolesti (KVB). Dislipidemija, oksidativni stres i inflamacija zahvaljujući međusobnim interakcijama predstavljaju faktore koji značajno doprinose patogenezi i progresiji ateroskleroze kod bolesnika sa HBB. Paraoksonaza 1 (PON1) je glavni antioksidativni enzim na HDL česticama, koji svoj antiaterogeni potencijal ostvaruje mehanizmima koji sprečavaju oksidaciju lipoproteina niske gustine (LDL). Prema in vitro studijama u reverznom transportu holesterola mogu učestvovati i membrane eritrocita koje razmenjuju holesterol (RBC-Mh) sa drugim lipoproteinima, kao i hemoglobin koji privremeno uklanja višak holesterola tako što gradi Hb-holesterol kompleks (Hb-h). Brojne studije su pokazale da inflamacija ima važnu ulogu u inicijaciji i progresiji ateroskleroze. Takođe, remodelovanje ekstracelularnog matriksa (ECM) i neadekvatna aktivnost matriks metaloproteinaza (MMP) i tkivnih inhibitora matriks metaloproteinaza (TIMP), kao i galektin-3 doprinose napredovanju hronične bolesti bubrega i razvoju ateroskleroze kod ovih bolesnika. Cilj ove studije je bio ispitivanje parametara dislipidemije, oksidativnog stresa i inflamacije u krvi bolesnika sa HBB, bolesnika na hemodijalizi i zdravih ispitanika. Takođe, ova studija je imala za cilj i ispitivanje uticaja pomenutih faktora rizika na redoks status u glavnim lipoproteinskim frakcijama i na remodelovanje ECM. Cilj je bio i izračunati odgovarajuće skorove dislipidemije, oksidativnog stresa i inflamacije kako bi se procenio sinergistički efekat ovih procesa kao i efekat koji zajedno ostvaruju na oksidativno-stresni status u lipoproteinskim frakcijama kod bolesnika sa različitim stepenom bubrežnog oštećenja. U istraživanju je učestvovalo 77 bolesnika sa različitim stepenom oštećenja funkcije bubrega i 40 zdravih ispitanika. Istraživanje je planirano i sprovedeno prema etičkim principima u skladu sa Helsinškom deklaracijom. Svi parametri oksidativnog stresa, totalni oksidativni status (p<0,01), uznapredovali produkti oksidacije proteina (AOPP) (p<0,01) i tiobarbiturna kiselina reagujuće supstance (p<0,05) su bili značajno viši kod bolesnika sa oštećenom funkcijom bubrega u odnosu na zdrave ispitanike. Vrednosti Hb-h u obe grupe bolesnika su bile niže u odnosu na kontrolnu grupu (p<0,001), dok je s druge strane RBC-Mh bio povišen kod bolesnika na hemodijalizi u poređenju sa kontrolnom grupom (p<0,01). Zdravi ispitanici su imali značajno viši relativni udeo HDL2 subfrakcija u odnosu na bubrežne bolesnike (p<0,05). Koncentracija i aktivnost PON1 u serumu su bile značajno niže u obe grupe bolesnika u odnosu na zdrave ispitanike (p<0,001)...sr
dc.description.abstractChronic kidney disease (CKD) presents condition that is characterized by numeroustraditional and non-traditional risk factors for developing cardiovascular disease (CVD).Dyslipidemia, oxidative stress and inflammation due to mutual interaction are factors thatsignificantly contribute to the pathogenesis and progression of atherosclerosis in patients withCKD. Paraoxonase 1 (PON1) is the main antioxidant enzyme on HDL particles, which hasantiatherogenic potential by mechanisms that inhibit oxidation of low density lipoproteinparticles (LDL). In accordance to in vitro studies reverse cholesterol transport could involveerythrocyte membranes that exchange free cholesterol (RBC-Mc) with other lipoproteins, aswell as hemoglobin that temporarily removes excess of cholesterol by building Hbcholesterolcomplex (Hb-c). Numerous studies have shown that inflammation plays animportant role in initiation and progression of atherosclerosis. Also, extracellular matrix(ECM) remodeling and inadequate activity of matrix metalloproteinase (MMP) and tissuematrix metalloproteinase inhibitors (TIMP) as well as galectin-3 also contribute to theprogression of chronic kidney disease and atherosclerosis in these patients. The aim of thisstudy was to examine the parameters of dyslipidemia, oxidative stress and inflammation inserum of patients with CKD, dialysis patients and healthy subjects. Also, this study wasaimed at examining the influence of the mentioned risk factors on redox status in majorlipoprotein fractions and on ECM remodeling. The aim was to calculate summary score ofdyslipidemia, oxidative stress and inflammation to evaluate the synergistic effect of theseprocesses as well as the effect on oxidative stress status in lipoprotein fractions in patientswith different degrees of renal impairment.The study included 77 patients with different stage of renal function impairment and40 healthy subjects. The research is planned and implemented according to ethical principlesin accordance with the Helsinki Declaration.Healthy subjects had a significantly higher percentage of HDL2 subfractionscompared to renal patients (p <0.05). The values of Hb-c in both patients groups were lowerthan in control group (p <0.001), while values of RBC-Mc were elevated in dialysis patientscompared to the control group (p <0.01). All parameters of oxidative stress, total oxidativestatus (p <0.01), advanced oxidation protein products (AOPP) (p <0.01) and thiobarbituricacid reactive substances (p <0.05) were significantly higher in patients with impaired renalfunction compared to healthy subjects. Concentration and activity of PON1 in serum weresignificantly lower in both groups of patients compared to healthy subjects (p <0.001).Arylesterase activity of PON1 was significantly lower in renal patients on HDL2 and HDL3subclasses (p <0.001). It was found that after hemodialysis there was a significant increase inparaoxonase activity of PON1 (p <0.01), while arylesterase activity of PON1 was lower afterdialysis (p <0.01)...en
dc.formatapplication/pdf
dc.languagesr
dc.publisherУниверзитет у Београду, Фармацеутски факултетsr
dc.relationinfo:eu-repo/grantAgreement/MESTD/Basic Research (BR or ON)/175035/RS//
dc.rightsopenAccess
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.sourceУниверзитет у Београдуsr
dc.subjectDislipidemijasr
dc.subjectDyslipidemiaen
dc.subjectoxidative stressen
dc.subjectinflammationen
dc.subjectlipoprotein particlesen
dc.subjectoksidativni stressr
dc.subjectinflamacijasr
dc.subjectlipoproteinske česticesr
dc.titleOksidativno-stresni status u krvi i lipoproteinskim frakcijama pacijenata sa hroničnom bolešću bubregasr
dc.title.alternativeOxidative stress status in blood and lipoprotein fractions in patients with chronic kidney diseaseen
dc.typedoctoralThesisen
dc.rights.licenseBY-NC-ND
dcterms.abstractКотур- Стевуљевић, Јелена; Стефановић, Aлександра; Черне, Дарко; Векић, Јелена; Миљковић, Милица; Оксидативно-стресни статус у крви и липопротеинским фракцијама пацијената са хроничном болешћу бубрега; Оксидативно-стресни статус у крви и липопротеинским фракцијама пацијената са хроничном болешћу бубрега;
dc.identifier.fulltexthttps://farfar.pharmacy.bg.ac.rs//bitstream/id/6979/IzvestajKomisije18437.pdf
dc.identifier.fulltexthttps://farfar.pharmacy.bg.ac.rs/bitstream/id/6978/Disertacija.pdf
dc.identifier.rcubhttps://hdl.handle.net/21.15107/rcub_nardus_10295
dc.type.versionpublishedVersion


Документи

Thumbnail
Thumbnail

Овај документ се појављује у следећим колекцијама

Приказ основних података о документу