University of Zagreb. Faculty of Pharmacy and Biochemistry. Department of medical biochemistry and haematology.
Abstract
Alzheimerova demencija (AD) je progresivna ireverzibilna bolest koja je najčešći oblik
demencije danas. Mehanizam nastanka bolesti nije utvrđen, no po dosadašnjim saznanjima
hipoteza amiloidne kaskade uzima se kao najvjerojatniji put nastanka AD. S100B je u literaturi
povezan sa procesom neurodegeneracije, pa tako i AD. On se smatra poveznicom između
amiloidoze i glioze, dva patološka procesa koji su prisutni u AD.
Cilj ovog istraživanja bio je utvrditi da li se vrijednosti S100B u likvoru razlikuju u kontrolnoj
skupini i skupini s AD te da li te vrijednosti koreliraju sa ostalim biljezima AD (t-tau, p-tau, β
amiloid).
Istraživanje je provedeno na 2 skupine ispitanika, jedna je kontrolna dok su druga skupina bili
ispitanici kojima vrijednosti biljega odgovaraju dijagnostičkim kriterijima za AD. U obje
skupine, određivana je koncentracija S100B u likvoru elektrokemiluminescentnom metodom na
analizatoru cobas 6000 cee (ECLIA, Roche Diagnostics). Rezultati su obrađeni u statističkom
programu MedCalc v.9.3.2.0 (omogućio KZLD).
Rezultati ukazuju na to da se vrijednosti u likvoru između ovih dviju skupina razlikuju. U
literaturi su pronađene više vrijednosti kod ispitanika s AD nego u kontrolonoj skupini, dok smo
mi dobili niže vrijednosti kod ispitanika s AD. Korelacija koja je napravljena sa pojedinačnim
biljezima, te njihovim omjerima nije statistički značajna, međutim istraživanje bi trebalo biti
provedeno na većem broju uzoraka kako bi to sa sigurnošću potvrdili.Alzheimer’s dementia (AD) is a progressive irreversible disease and the most common type of dementia
today. The mechanism of the occurrence has not been confirmed, but with the collected knowledge, the
most probable way is amyloid cascade hypothesis. S100B is connected with the process of
neurodegeneration, in literature. It is considered as a link between amyloidosis and gliosis, two pathological
processes present in AD. The main goal of this research is to determine if the value of S100B in
cerebrospinal fluid differs in control group and group with AD and if those values correlate with the rest of
the AD marks (t-tau, p-tau, β-amyloid).The research has been conducted on 2 groups of respondents, one
controlled, while the other one consisted of respondents whose characteristics match the diagnostic criteria
for AD. In both groups, the concentration of S100B has been determined in cerebrospinal fluid with
electromiluminscent method by cobas 6000 cee (ECLIA, Roche Diagnostics) analyzer. The results have
been processed in the statistical program MedCalc v.9.3.2.0(enabled by KZLD).
Results also show that the value in cerebrospinal fluid between the two groups differ. Higher values have
been found with the respondents with AD than in the controlled group, in literature, while we established
lower value with the respondents with AD. The correlation made with individual marks and with their ratios
is not statistically significant, however a research should be made on a larger number of samples, so that a
certain confirmation can be made