. "Background. We studied the relation between plasma total homocysteine and cysteine levels in men with positive and negative angiographic findings. The negative finding was defined as no stenosis in coronary arteries. The positive result was characterized as 70% or more stenosis in coronary arteries or as 50% or more stenosis in arteria coronaria sinistra. Methods. The degree of stenosis was determined by coronary angiography. Both of analytes were measured simultaneously using ion-paired HPLC method with coulometric detection. Results. We compared this method with HPLC method with fluorescence detection by linear regression: HPLC/ED = 1.1435 (HPLC/FD) ? 0.273 umol/l, R2 = 0.9945 for homocysteine and HPLC/ED = 0.8737 (HPLC/FD) + 56.534 umol/l, R2 = 0.8564 for cysteine. The significant positive correlation between levels of cysteine and homocysteine was found in the angiographically negative group (r = 0.506, p = 0.044). In contrast to this finding, there was no significantly correlation in patients"@en . . . . "1"^^ . "The relationship between homocysteine and cysteine in patients with different angiographic findings" . "Z(MSM0021627502)" . "Vztah mezi homocysteinem a cysteinem u pacient\u016F s r\u016Fzn\u00FDmi angiografick\u00FDmi n\u00E1lezy"@cs . "Background. We studied the relation between plasma total homocysteine and cysteine levels in men with positive and negative angiographic findings. The negative finding was defined as no stenosis in coronary arteries. The positive result was characterized as 70% or more stenosis in coronary arteries or as 50% or more stenosis in arteria coronaria sinistra. Methods. The degree of stenosis was determined by coronary angiography. Both of analytes were measured simultaneously using ion-paired HPLC method with coulometric detection. Results. We compared this method with HPLC method with fluorescence detection by linear regression: HPLC/ED = 1.1435 (HPLC/FD) ? 0.273 umol/l, R2 = 0.9945 for homocysteine and HPLC/ED = 0.8737 (HPLC/FD) + 56.534 umol/l, R2 = 0.8564 for cysteine. The significant positive correlation between levels of cysteine and homocysteine was found in the angiographically negative group (r = 0.506, p = 0.044). In contrast to this finding, there was no significantly correlation in patients" . "RIV/00216275:25310/07:00006515!RIV08-MSM-25310___" . "Myjavec, Andrej" . . . . . . "Vojt\u00ED\u0161ek, Petr" . "Berlin" . . "S250" . "The relationship between homocysteine and cysteine in patients with different angiographic findings" . "homocysteine; cysteine; liquid chromatography with electrochemical detection; angiographic findings"@en . . "\u017D\u00E1kov\u00E1, Pavla" . "Stoklasov\u00E1, Martina" . . "1434-6621" . . "RIV/00216275:25310/07:00006515" . "2"^^ . "Vztah mezi homocysteinem a cysteinem u pacient\u016F s r\u016Fzn\u00FDmi angiografick\u00FDmi n\u00E1lezy"@cs . "25310" . "The relationship between homocysteine and cysteine in patients with different angiographic findings"@en . "The relationship between homocysteine and cysteine in patients with different angiographic findings"@en . "Walter de Gruyter GmbH & Co. KG" . . "5"^^ . "447184" . . "\u00DAvod. Studovali jsme vztah mezi hladinami homocysteinu a cysteinu v plazm\u011B u pacient\u016F s pozitivn\u00EDm a negativn\u00EDm angiografick\u00FDm n\u00E1lezem. Negativn\u00ED n\u00E1lez byl definov\u00E1n jako \u017E\u00E1dn\u00E1 sten\u00F3za ve v\u011Bn\u010Dit\u00FDch c\u00E9v\u00E1ch. Pozitivn\u00ED n\u00E1lez byl charakterizov\u00E1n jako 70% a v\u011Bt\u0161\u00ED sten\u00F3za ve v\u011Bn\u010Dit\u00FDch c\u00E9v\u00E1ch nebo jako 50% a v\u011Bt\u0161\u00ED sten\u00F3za v arteria coronaria sinistra. Metody. Stupe\u0148 sten\u00F3zy byl ur\u010Den pomoc\u00ED koron\u00E1rn\u00ED angiografie. Oba analyty byly m\u011B\u0159eny simult\u00E1nn\u011B pomoc\u00ED ion p\u00E1rov\u00E9 chromatografie s coulometrickou detekc\u00ED. V\u00FDsledky. Pomoc\u00ED line\u00E1rn\u00ED regrese jsme porovnali na\u0161i metodu s metodou HPLC s fluorescen\u010Dn\u00ED detekc\u00ED: HPLC/ED = 1,1435 (HPLC/FD) ? 0,273 umol/l, R2 = 0,9945 pro homocystein a HPLC/ED = 0,8737 (HPLC/FD) + 56,534 umol/l, R2 = 0,8564 pro cystein. U skupiny pacient\u016F s negativn\u00EDm angiografick\u00FDm n\u00E1lezem byla nalezena pozitivn\u00ED korelace mezi hladinami cysteinu a homocysteinu (r = 0,506, p = 0,044), narozd\u00EDl od pacient\u016F se sten\u00F3zou (r = 0,056, p = 0,8287). Prevalence pom\u011Bru cystein/homocystein, men\u0161\u00EDm ne\u017E 25, byla"@cs . . . "Clinical Chemistry and Laboratory Medicine" . "Kan\u010F\u00E1r, Roman" . "[1C5157DB15B7]" .