In order to find a peptide panel to differentiate close hypertensive conditions a case-control study was designed for 64 women from 4 groups: preeclampsia (PE), chronic hypertension superimposed with PE, chronic hypertension, and healthy individuals. Chromatography coupled with mass-spectrometry and subsequent bioinformatic analysis showed several patterns in the changes of the urine peptidome. There were 36 peptides common for four groups. Twenty two of them 22 belonged to alpha-1-chain of collagen I, nine peptides were from alpha-1-chain of collagen III, two from alpha-2-chain of collagen I, one from alpha-1/2-chain of collagen I, one from alpha-1-chain of collagen I/XVIII and one from uromodulin. Patients with hypertensive disorders had 34 common peptides: 12 from alpha-1-chain of collagen I, 10 from fibrinogen alpha-chain, eight from alpha-1-chain of collagen III, and 4 per other types of collagen. Comparative analysis revealed 12 peptides, which could be used as a diagnostic panel for confident discrimination of pregnant women with various hypertensive disorders.
C tsel'iu poiska paneli peptidov, pozvoliaiushcheĭ differentsirovat' blizkie gipertenzivnye sostoianiia beremennykh, bylo provedeno issledovanie sluchaĭ-kontrol' u 64 zhenshchin 4-kh grupp: preéklampsiia (PÉ), PÉ na fone KhAG (khronicheskaia arterial'naia gipertenziia), KhAG, zdorovye. Khromato-mass-spektrometricheskiĭ analiz s ispol'zovaniem bioinformatsionnogo podkhoda pozvolil vyiavit' nekotorye zakonomernosti v izmenenii peptidnogo sostava mochi. Dlia vsekh chetyrekh grupp byli kharakterny obshchie 36 peptidov: 22 iz nikh otnosiatsia k al'fa-1 tsepi kollagena 1, 9 – k al'fa-1 tsepi kollagena 3, 2 – k al'fa-2 tsepi kollagena 1, 1 – k al'fa-1/2 tsepi kollagena 1, 1 – k al'fa-1 tsepi kollagena 1/18 i 1 – k uromodulinu. Dlia patsientok s gipertenzivnymi narusheniiami (PÉ, PÉ na fone KhAG, KhAG) kharakterny obshchie 34 peptida: 12 iz al'fa-1 tsepi kollagena 1, 10 iz al'fa-fibrinogena, 8 iz al'fa-1 tsepi kollagena 3, i po 4 iz drugikh tipov kollagena. V rezul'tate sravnitel'nogo analiza byla sformirovana panel' iz 12-ti peptidov, pozvoliaiushchikh odnoznachno differentsirovat' gipertenzivnye rasstroĭstva u beremennykh.
Keywords: mass-spectrometry; peptidomics; preeclampsia.