2023
Segmented Hair Cortisol Analysis By Online Solid Phase Extraction Liquid Chromatography Mass Spectrometry
ŠMAK, Pavel, Daniela FAČKOVCOVÁ, Katarína KOSTOLANSKÁ, Jana GREGOROVÁ, Eliška BARTEČKOVÁ et. al.Základní údaje
Originální název
Segmented Hair Cortisol Analysis By Online Solid Phase Extraction Liquid Chromatography Mass Spectrometry
Autoři
ŠMAK, Pavel (203 Česká republika, domácí), Daniela FAČKOVCOVÁ (703 Slovensko, domácí), Katarína KOSTOLANSKÁ (703 Slovensko, domácí), Jana GREGOROVÁ (203 Česká republika, domácí), Eliška BARTEČKOVÁ (203 Česká republika, domácí), Jan JUŘICA (203 Česká republika, domácí), Libor USTOHAL (203 Česká republika, domácí), Jana HOŘÍNKOVÁ (203 Česká republika, domácí), Pavla LINHARTOVÁ (203 Česká republika) a Ondřej PEŠ (203 Česká republika, domácí)
Vydání
24. Škola hmotnostní spektrometrie 2023, 2023
Další údaje
Jazyk
angličtina
Typ výsledku
Konferenční abstrakt
Obor
30202 Endocrinology and metabolism
Stát vydavatele
Česká republika
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Kód RIV
RIV/00216224:14110/23:00131876
Organizační jednotka
Lékařská fakulta
ISBN
978-80-88195-44-3
Klíčová slova anglicky
hair cortisol; liquid chromatography; mass spectrometry; probabilistic; Bayesian; longitudinal; evaluation
Změněno: 10. 4. 2024 13:02, Mgr. Tereza Miškechová
Anotace
V originále
The hypothalamic-pituitary-adrenal axis is the primary neurocrine axis that regulates response of the stress. Activation of this axis leads to releasing glucocorticoid (cortisol) that regulates physiological events and inhibits further HPA axis activation. Dysregulation of the hypothalamic-pituitary-adrenal axis plays an important role in a number of endocrine and psychiatric disorders, such as adrenal insufficiency, (ectopic) Cushing syndrome, major depressive disorder, borderline personality disorder, or schizophrenia. Hair cortisol concentration (HCC) belongs to relatively new methods of estimating cumulative cortisol exposure over months. While plasma, saliva, and urine cortisol levels provide immediate values in the organism, hair matrix allows for chronic exposure evaluation and longitudinal monitoring. Large inter- and intraindividual variability of the hair sampling and determination could be overcome by a segmentation approach – cutting the hair strand into smaller segments and analyzing them independently. Online (on-column) solid phase extraction liquid chromatography mass spectrometry (SPE LC MS) using a surrogate analyte has been performed to quantify HCC in various segmented hair samples. Based on the hair length, it was possible to obtain a relatively high number (3–6) of segments possibly containing highly correlated HCC values. Probabilistic multilevel (hierarchical) models were applied to volunteers’ hair for establishing a parameter of decrease, which could then be used to correct for such a decrease in the hair of the studied population. Consequently, the deviations from the corrections could then be attributed to the effect of fluctuation or variability of HCC in a certain time point (segment), e.g. episode, intervention, etc.
Návaznosti
MUNI/A/1275/2022, interní kód MU |
| ||
NU23-08-00257, projekt VaV |
|