37 research outputs found

    The results of prosthetic plasty of the anterior abdominal wall at the treatment of postoperative ventral hernias

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    We studied the results of treatment of 167 patients with postoperative ventral hernias (POVH) with use of mesh endoprosthesis. Basic group included 22 (13,0 Β± 2,6 %) patients, who had plasty of anterior abdominal wall with use of proposed method. This method is a modification of Β«on layΒ» plasty. The first group of clinical comparison included 95 (57,0 Β± 3,8 %) patients operated with Β«on layΒ» method. The second group of clinical comparison included 50 (30,0 Β± 3,5 %) patients operated with Β«sub layΒ» method. Morphological study of hernial sac was conducted, the indications to the new method of plasty were revealed, its efficiency in comparison with Β«on layΒ» plasty was proved. The article reviews frequency and character of complications and quality of life of patients after application of various kinds of prosthetic plasty. We developed an algorithm for choosing the method of abdominal wall plasty

    Analysis of homocysteine and thiol-containing compounds using the heterocyclic disulfides

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    БиологичСски Π°ΠΊΡ‚ΠΈΠ²Π½Ρ‹Π΅ низкомолСкулярныС Π°ΠΌΠΈΠ½ΠΎΡ‚ΠΈΠΎΠ»Ρ‹, Ρ‚Π°ΠΊΠΈΠ΅ ΠΊΠ°ΠΊ гомоцистСин, Ρ…Π°Ρ€Π°ΠΊΡ‚Π΅Ρ€ΠΈΠ·ΡƒΡŽΡ‚ΡΡ малоинтСнсивным ΠΏΠΎΠ³Π»ΠΎΡ‰Π΅Π½ΠΈΠ΅ΠΌ Π² ΡƒΠ»ΡŒΡ‚Ρ€Π°Ρ„ΠΈΠΎΠ»Π΅Ρ‚ΠΎΠ²ΠΎΠΌ ΠΈ Π²ΠΈΠ΄ΠΈΠΌΠΎΠΌ Π΄ΠΈΠ°ΠΏΠ°Π·ΠΎΠ½Π΅ излучСния, поэтому для ΠΈΡ… Π°Π½Π°Π»ΠΈΠ·Π° Π² Π±ΠΎΠ»ΡŒΡˆΠΈΠ½ΡΡ‚Π²Π΅ случаСв ΠΏΡ€ΠΈΠΌΠ΅Π½ΡΡŽΡ‚ Π΄Π΅Ρ€ΠΈΠ²Π°Ρ‚ΠΈΠ·Π°Ρ†ΠΈΡŽ. Π”Π΅Ρ€ΠΈΠ²Π°Ρ‚ΠΈΠ·ΠΈΡ€ΡƒΡŽΡ‰ΠΈΠΉ Π°Π³Π΅Π½Ρ‚ взаимодСйствуСт с Ρ‚ΠΈΠΎΠ»ΡŒΠ½ΠΎΠΉ Π³Ρ€ΡƒΠΏΠΏΠΎΠΉ Π°Π½Π°Π»ΠΈΡ‚Π° с ΠΎΠ±Ρ€Π°Π·ΠΎΠ²Π°Π½ΠΈΠ΅ΠΌ соСдинСния, интСнсивно ΠΏΠΎΠ³Π»ΠΎΡ‰Π°ΡŽΡ‰Π΅Π³ΠΎ Π² Π΄Π»ΠΈΠ½Π½ΠΎΠ²ΠΎΠ»Π½ΠΎΠ²ΠΎΠΉ области спСктра. Π’ качСствС Π΄Π΅Ρ€ΠΈΠ²Π°Ρ‚ΠΈΠ·ΠΈΡ€ΡƒΡŽΡ‰ΠΈΡ… Π°Π³Π΅Π½Ρ‚ΠΎΠ² часто ΠΏΡ€ΠΈΠΌΠ΅Π½ΡΡŽΡ‚ΡΡ гСтСроцикличСскиС Π΄ΠΈΡΡƒΠ»ΡŒΡ„ΠΈΠ΄Ρ‹. ΠœΠ΅Ρ‚ΠΎΠ΄ΠΈΠΊΠΈ Π°Π½Π°Π»ΠΈΠ·Π° с ΠΈΡ… использованиСм, ΠΊΠ°ΠΊ ΠΏΡ€Π°Π²ΠΈΠ»ΠΎ, ΠΎΡ‚Π»ΠΈΡ‡Π°ΡŽΡ‚ΡΡ простотой ΠΈ Ρ‚ΠΎΡ‡Π½ΠΎΡΡ‚ΡŒΡŽ. Однако ΡˆΠΈΡ€ΠΎΠΊΠΎ примСняСмыС Π² аналитичСской ΠΏΡ€Π°ΠΊΡ‚ΠΈΠΊΠ΅ Π΄ΠΈΡΡƒΠ»ΡŒΡ„ΠΈΠ΄Ρ‹, Ρ‚Π°ΠΊΠΈΠ΅ ΠΊΠ°ΠΊ Π΄ΠΈΡ‚ΠΈΠΎΠ΄ΠΈΠΏΠΈΡ€ΠΈΠ΄ΠΈΠ½ ΠΈ 5,5β€²-дитиобис-(2-нитробСнзойная кислота), ΠΈΠΌΠ΅ΡŽΡ‚ ряд нСдостатков, ΠΊ числу ΠΊΠΎΡ‚ΠΎΡ€Ρ‹Ρ… относятся ΡƒΠ·ΠΊΠΈΠΉ Π΄ΠΈΠ°ΠΏΠ°Π·ΠΎΠ½ Π·Π½Π°Ρ‡Π΅Π½ΠΈΠΉ pH, ΠΏΡ€ΠΈ ΠΊΠΎΡ‚ΠΎΡ€Ρ‹Ρ… Π΄ΠΈΡΡƒΠ»ΡŒΡ„ΠΈΠ΄Ρ‹ ΠΌΠΎΠ³ΡƒΡ‚ Π±Ρ‹Ρ‚ΡŒ ΠΈΡΠΏΠΎΠ»ΡŒΠ·ΠΎΠ²Π°Π½Ρ‹, Π° Ρ‚Π°ΠΊΠΆΠ΅ низкая ΠΊΠΎΠ½Ρ‚Ρ€Π°ΡΡ‚Π½ΠΎΡΡ‚ΡŒ аналитичСской Ρ€Π΅Π°ΠΊΡ†ΠΈΠΈ. ΠŸΠΎΡΡ‚ΠΎΠΌΡƒ поиск Π½ΠΎΠ²Ρ‹Ρ… аналитичСских Π°Π³Π΅Π½Ρ‚ΠΎΠ² продолТаСтся. Для опрСдСлСния гомоцистСина ΠΈΡΠΏΠΎΠ»ΡŒΠ·ΠΎΠ²Π°Π½Ρ‹ Π΄ΠΈΡΡƒΠ»ΡŒΡ„ΠΈΠ΄Ρ‹ 2,2β€²-дитиобис[бСнзоксазол] ΠΈ 8,8β€²-дитиобис[Ρ…ΠΈΠ½ΠΎΠ»ΠΈΠ½]. Π˜Π·ΡƒΡ‡Π΅Π½Π° ΠΊΠΈΠ½Π΅Ρ‚ΠΈΠΊΠ° Ρ€Π΅Π°ΠΊΡ†ΠΈΠΈ ΠΌΠ΅ΠΆΠ΄Ρƒ гомоцистСином ΠΈ ΠΏΡ€Π΅Π΄Π»ΠΎΠΆΠ΅Π½Π½Ρ‹ΠΌΠΈ Π΄ΠΈΡΡƒΠ»ΡŒΡ„ΠΈΠ΄Π°ΠΌΠΈ. ИсслСдовано влияниС pH Π½Π° ΠΈΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ оптичСской плотности Π² процСссС протСкания аналитичСской Ρ€Π΅Π°ΠΊΡ†ΠΈΠΈ. Π Π°Π·Ρ€Π°Π±ΠΎΡ‚Π°Π½Ρ‹ Ρ‚ΠΎΡ‡Π½Ρ‹Π΅ ΠΈ Ρ‡ΡƒΠ²ΡΡ‚Π²ΠΈΡ‚Π΅Π»ΡŒΠ½Ρ‹Π΅ ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΈΠΊΠΈ опрСдСлСния гомоцистСина спСктрофотомСтричСским ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΎΠΌ, ΠΌΠ΅Ρ‚ΠΎΠ΄Π°ΠΌΠΈ капиллярного элСктрофорСза (КЭ), высокоэффСктивной Тидкостной Ρ…Ρ€ΠΎΠΌΠ°Ρ‚ΠΎΠ³Ρ€Π°Ρ„ΠΈΠΈ (Π’Π­Π–Π₯) ΠΈ кинСтичСским ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΎΠΌ со спСктрофотомСтричСским Π΄Π΅Ρ‚Π΅ΠΊΡ‚ΠΈΡ€ΠΎΠ²Π°Π½ΠΈΠ΅ΠΌ (ΠΏΡ€Π΅Π΄Π΅Π» обнаруТСния гомоцистСина 1.1Β·10-6-7.8Β·10-6 М, ΠΎΡ‚Π½ΠΎΡΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΠ΅ стандартноС ΠΎΡ‚ΠΊΠ»ΠΎΠ½Π΅Π½ΠΈΠ΅ 1.5-4.6 %). ΠŸΡ€Π΅Π΄Π»ΠΎΠΆΠ΅Π½Π½Ρ‹Π΅ Π΄ΠΈΡΡƒΠ»ΡŒΡ„ΠΈΠ΄Ρ‹ Ρ‚Π°ΠΊΠΆΠ΅ Π±Ρ‹Π»ΠΈ ΠΈΡΠΏΠΎΠ»ΡŒΠ·ΠΎΠ²Π°Π½Ρ‹ ΠΏΡ€ΠΈ ΠΎΠΏΡ€Π΅Π΄Π΅Π»Π΅Π½ΠΈΠΈ ΡΡƒΠ»ΡŒΡ„Π³ΠΈΠ΄Ρ€ΠΈΠ»ΡŒΠ½Ρ‹Ρ… Π³Ρ€ΡƒΠΏΠΏ Π² ΠΎΠ±Ρ€Π°Π·Ρ†Π΅ чСловСчСской ΡƒΡ€ΠΈΠ½Ρ‹. Π Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹, ΠΏΠΎΠ»ΡƒΡ‡Π΅Π½Π½Ρ‹Π΅ ΠΏΡ€ΠΈ использовании 2,2β€²-дитиобис[бСнзоксазола] ΠΈ 8,8β€²-дитиобис[Ρ…ΠΈΠ½ΠΎΠ»ΠΈΠ½Π°] ΠΈ ΠΏΡ€ΠΈ использовании распространСнного Π² аналитичСской ΠΏΡ€Π°ΠΊΡ‚ΠΈΠΊΠ΅ 4,4β€²-Π΄ΠΈΡ‚ΠΈΠΎΠ΄ΠΈΠΏΠΈΡ€ΠΈΠ΄ΠΈΠ½Π°, оказались Π±Π»ΠΈΠ·ΠΊΠΈ, Ρ‡Ρ‚ΠΎ ΡƒΠΊΠ°Π·Ρ‹Π²Π°Π΅Ρ‚ Π½Π° ΠΏΡ€ΠΈΠΌΠ΅Π½ΠΈΠΌΠΎΡΡ‚ΡŒ ΠΏΡ€Π΅Π΄Π»ΠΎΠΆΠ΅Π½Π½Ρ‹Ρ… Ρ€Π΅Π°Π³Π΅Π½Ρ‚ΠΎΠ² Π² Π°Π½Π°Π»ΠΈΠ·Π΅ Ρ€Π΅Π°Π»ΡŒΠ½Ρ‹Ρ… ΠΎΠ±ΡŠΠ΅ΠΊΡ‚ΠΎΠ².Biological low-molecular aminothiols, such as homocysteine, are characterized by the weak absorption in the UV – visible range. Therefore, aminothiols analysis requires using thiol-specific chemosensors or derivatization procedure. Heterocyclic disulfides belong to a large group of derivatizing agents. However, the disulfides widely used in the analytical practice, such as 5,5'-dithiobis-(2-nitrobenzoic acid), have several disadvantages: limited acceptable pH range, low sensitivity, susceptibility to hydrolisys. Hence, the search for the effective derivatizing agents continues. In the current work, 2,2'-dithiobis[benzoxazole] and 8,8'-dithiobis-quinoline disulfides were used for the analysis of homocysteine. Precise and sensitive methods (homocysteine detection limit in the range of 1.1Β·10-6–7.8Β·10-6 M, relative standard deviation in the range of 1.5–4.6%) for the homocysteine determination have been developed, including spectrophotometric method, capillary electrophoresis (CE), high-performance liquid chromatography (HPLC) and kinetic method with the spectrophotometric detection. The proposed disulfides have also been successfully used in the analysis of sulfhydryl groups content in the sample of human urine

    Rare cases in herniology: The contents of the hernia – part of the liver, metastatic carcinoma, a foreign body

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    Surgical treatment of patients with postoperative ventral hernias is one of the most pressing problems in herniology. Verification of the diagnosis of postoperative ventral hernia is usually not difficult. At the same time, there may be difficulties in diagnosis associated with determining the true size of the hernia orifices, the contents of the hernial sac. These moments areΒ  determined by various factors: the location of the hernia on the anterior abdominal wall, the age, sex of the patient, as well as anamnesis of hernia and the volume of surgery previously performed. One of the very rare situations in external abdominal hernias is the situation when the content ofΒ  the hernial sac is the part of the parenchymal organ, the tumor process, as well as foreign bodies. The study presents the observation materials of three patients admitted for diagnosis and treatment to the surgical hospital clinics of Irkutsk State Medical University. When examined and treated, it was found that in one case the content of the hernia sac included a part of the left lobe of the liver, in another observation, the inguinal hernia sac contained metastatic carcinoma, in the third case – a foreign body was found. All patients underwent surgery (hernioplasty, hernioplasty). Diagnosis of hernia of the anterior abdominal wall was confirmed. A literary search was made for rare clinical examples in herniology. In the world literature, there are only eight observations when the content of the hernia sac was a part of the lobe of the liver; the presence of metastatic carcinoma and a free foreign body we found as single observations described by known specialists in herniology

    Application of surface brachytherapy in treatment of classic Kaposi’s sarcoma relapse

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    The authors describe a patient of 63 years with a classic Kaposi’s sarcoma relapse, having contraindi -Β cations for cytostatic therapy. They also present literature data concerning the etiology, pathogenesis,Β diagnosis and treatment of disease

    On the Opportunities of Using the Indices of Lipid Peroxidation – Antioxidant Defense System in the Diagnostics of Varicose Veins of Small Pelvis in Women

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    Background: The prevalence of varicose veins of small pelvic veins in women of reproductive age varies widely – from 5.4 to 80 %, due to the low specificity and low sensitivity of clinical diagnostic techniques, and the absence of biomarkers that can be used to identify the formation and progression of varicose veins of small pelvic veins in women.Aims: To identify changes in the levels of parameters of the system β€œlipid peroxidation – antioxidant protection” with the development of varicose veins of the pelvis in women, as well as the possibility of their diagnostic use.Materials and methods: We examined 200 women with clinical signs of varicose veins of small pelvis. Control group included 30 women without any pathology of venous system. Treatment group included 137 women with varicose veins of small pelvis: with mild degree of severity – 39 women, with moderate degree of severity – 65 women, with severe degree of severity – 33 women. We performed comparative analysis of lipid peroxidation – antioxidant defense system in women with and without varicose veins of small pelvis taking into account the severity degrees of pathological process.Results: We obtained the most informative indices for lipid peroxidation – antioxidant defense processes in blood of women with varicose veins of small pelvis: concentration of diene conjugate (DC) for the mild degree of severity of pathological process, lipid hydroperoxide (LHP), DC and malonic dialdehyde (MDA) – for the moderate and severe degree of severity, and also changes in the activity of antioxidant enzymes with increase of the severity of the disease. Assessment of the level of catalase (Cat) and glutathione peroxidase (GP) showed their highest informative value at the mild degree of severity. Concentrations of glutathione reductase (GR), glutathione S-transferase (GST) and reduced glutathione (GSH) are more statistically significant markers for severe forms of pathological process.Conclusions: Our research showed the relevance and advisability of the studying the levels of lipid peroxidation – antioxidant defense indices in women with varicose veins of small pelvis. We registered the highest diagnostic value of DC, Cat and GP in the beginning of the disease and of LHP, DC, MDA, GR, GST and GSH – at severe forms of the pathological process. We obtained reference values for DC, MDA, Cat, SOD and GP concentration that can be considered as the predictors of the development of varicose veins of small pelvis

    Bioinorganic Chemistry of Alzheimer’s Disease

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    The Impact of eHealth on the Quality and Safety of Health Care: A Systematic Overview

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    Aziz Sheikh and colleagues report the findings of their systematic overview that assessed the impact of eHealth solutions on the quality and safety of health care

    The Second International Research and Practical Conference for Polygraphologists, Graphologists, Profilers and Security Professionals "Real Practice of Polygraphologists"

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    The article presents the results of research and practical conference "Real Practice of Polygraphologists". The overview of the reports made by the experts-polygraphologists, criminalists, leading researchers in the field of psychophysiological assessment of reactions is presented. The main directions of development of polygraphology as applied branch of psychophysiology is determined. The relevant topics for discussion at the next conference are outlinedΠ’ ΡΡ‚Π°Ρ‚ΡŒΠ΅ прСдставлСны Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹ Ρ€Π°Π±ΠΎΡ‚Ρ‹ Π½Π°ΡƒΡ‡Π½ΠΎ-практичСской ΠΊΠΎΠ½Ρ„Π΅Ρ€Π΅Π½Ρ†ΠΈΠΈ «РСальная ΠΏΡ€Π°ΠΊΡ‚ΠΈΠΊΠ° спСциалистов-ΠΏΠΎΠ»ΠΈΠ³Ρ€Π°Ρ„ΠΎΠ»ΠΎΠ³ΠΎΠ²Β». ΠŸΡ€Π΅Π΄ΡΡ‚Π°Π²Π»Π΅Π½ ΠΎΠ±Π·ΠΎΡ€ выступлСний Π΄ΠΎΠΊΠ»Π°Π΄Ρ‡ΠΈΠΊΠΎΠ² - экспСртов-ΠΏΠΎΠ»ΠΈΠ³Ρ€Π°Ρ„ΠΎΠ»ΠΎΠ³ΠΎΠ², криминалистов, Π²Π΅Π΄ΡƒΡ‰ΠΈΡ… Π½Π°ΡƒΡ‡Π½Ρ‹Ρ… сотрудников Π² сфСрС психофизиологичСской ΠΎΡ†Π΅Π½ΠΊΠΈ Ρ€Π΅Π°ΠΊΡ†ΠΈΠΉ. ΠžΠΏΡ€Π΅Π΄Π΅Π»Π΅Π½Ρ‹ основныС направлСния развития ΠΏΠΎΠ»ΠΈΠ³Ρ€Π°Ρ„ΠΎΠ»ΠΎΠ³ΠΈΠΈ ΠΊΠ°ΠΊ ΠΏΡ€ΠΈΠΊΠ»Π°Π΄Π½ΠΎΠΉ отрасли психофизиологии. НамСчСны Π°ΠΊΡ‚ΡƒΠ°Π»ΡŒΠ½Ρ‹Π΅ Ρ‚Π΅ΠΌΡ‹ для обсуТдСния Π½Π° ΡΠ»Π΅Π΄ΡƒΡŽΡ‰Π΅ΠΉ ΠΊΠΎΠ½Ρ„Π΅Ρ€Π΅Π½Ρ†ΠΈ

    ΠžΠžΠŸΠ Π•Π”Π•Π›Π•ΠΠ˜Π• Π“ΠžΠœΠžΠ¦Π˜Π‘Π’Π•Π˜ΠΠ И Π’Π˜ΠžΠ›Π‘ΠžΠ”Π•Π Π–ΠΠ©Π˜Π₯ Π‘ΠžΠ•Π”Π˜ΠΠ•ΠΠ˜Π™ Π‘ Π‘ΠŸΠžΠ›Π¬Π—ΠžΠ’ΠΠΠ˜Π•Πœ Π“Π•Π’Π•Π ΠžΠ¦Π˜ΠšΠ›Π˜Π§Π•Π‘ΠšΠ˜Π₯ Π”Π˜Π‘Π£Π›Π¬Π€Π˜Π”ΠžΠ’

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    Biological low-molecular aminothiols, such as homocysteine, are characterized by the weak absorption in the UV – visible range. Therefore, aminothiols analysis requires using thiol-specific chemosensors or derivatization procedure. Heterocyclic disulfides belong to a large group of derivatizing agents. However, the disulfides widely used in the analytical practice, such as 5,5'-dithiobis-(2-nitrobenzoic acid), have several disadvantages: limited acceptable pH range, low sensitivity, susceptibility to hydrolisys. Hence, the search for the effective derivatizing agents continues. In the current work, 2,2'-dithiobis[benzoxazole] and 8,8'-dithiobis-quinoline disulfides were used for the analysis of homocysteine. Precise and sensitive methods (homocysteine detection limit in the range of 1.1Β·10-6–7.8Β·10-6 M, relative standard deviation in the range of 1.5–4.6%) for the homocysteine determination have been developed, including spectrophotometric method, capillary electrophoresis (CE), high-performance liquid chromatography (HPLC) and kinetic method with the spectrophotometric detection. The proposed disulfides have also been successfully used in the analysis of sulfhydryl groups content in the sample of human urine.Keywords: homocysteine, aminothiols, 2,2'-dithiobis[benzoxazole], 8,8'-dithiobis-quinolineΒ DOI: http://dx.doi.org/10.15826/analitika.2022.26.3.005Β A.A. Shcherbatykh1, O. I. Askalepova1, I. A. Estrin2Β 1Southern Federal University, Department of Chemistry,Zorge St. 7, 344090, Rostov-on-Don, Russian Federation2Rostov State Transport University,Β Rostovskogo Strelkovogo Polka Narodnogo Opolcheniya Sq. 2, 344038, Rostov-on-Don, Russian FederationБиологичСски Π°ΠΊΡ‚ΠΈΠ²Π½Ρ‹Π΅ низкомолСкулярныС Π°ΠΌΠΈΠ½ΠΎΡ‚ΠΈΠΎΠ»Ρ‹, Ρ‚Π°ΠΊΠΈΠ΅ ΠΊΠ°ΠΊ гомоцистСин, Ρ…Π°Ρ€Π°ΠΊΡ‚Π΅Ρ€ΠΈΠ·ΡƒΡŽΡ‚ΡΡ малоинтСнсивным ΠΏΠΎΠ³Π»ΠΎΡ‰Π΅Π½ΠΈΠ΅ΠΌ Π² ΡƒΠ»ΡŒΡ‚Ρ€Π°Ρ„ΠΈΠΎΠ»Π΅Ρ‚ΠΎΠ²ΠΎΠΌ ΠΈ Π²ΠΈΠ΄ΠΈΠΌΠΎΠΌ Π΄ΠΈΠ°ΠΏΠ°Π·ΠΎΠ½Π΅ излучСния, поэтому для ΠΈΡ… Π°Π½Π°Π»ΠΈΠ·Π° Π² Π±ΠΎΠ»ΡŒΡˆΠΈΠ½ΡΡ‚Π²Π΅ случаСв ΠΏΡ€ΠΈΠΌΠ΅Π½ΡΡŽΡ‚ Π΄Π΅Ρ€ΠΈΠ²Π°Ρ‚ΠΈΠ·Π°Ρ†ΠΈΡŽ. Π”Π΅Ρ€ΠΈΠ²Π°Ρ‚ΠΈΠ·ΠΈΡ€ΡƒΡŽΡ‰ΠΈΠΉ Π°Π³Π΅Π½Ρ‚ взаимодСйствуСт с Ρ‚ΠΈΠΎΠ»ΡŒΠ½ΠΎΠΉ Π³Ρ€ΡƒΠΏΠΏΠΎΠΉ Π°Π½Π°Π»ΠΈΡ‚Π° с ΠΎΠ±Ρ€Π°Π·ΠΎΠ²Π°Π½ΠΈΠ΅ΠΌ соСдинСния, интСнсивно ΠΏΠΎΠ³Π»ΠΎΡ‰Π°ΡŽΡ‰Π΅Π³ΠΎ Π² Π΄Π»ΠΈΠ½Π½ΠΎΠ²ΠΎΠ»Π½ΠΎΠ²ΠΎΠΉ области спСктра. Π’ качСствС Π΄Π΅Ρ€ΠΈΠ²Π°Ρ‚ΠΈΠ·ΠΈΡ€ΡƒΡŽΡ‰ΠΈΡ… Π°Π³Π΅Π½Ρ‚ΠΎΠ² часто ΠΏΡ€ΠΈΠΌΠ΅Π½ΡΡŽΡ‚ΡΡ гСтСроцикличСскиС Π΄ΠΈΡΡƒΠ»ΡŒΡ„ΠΈΠ΄Ρ‹. ΠœΠ΅Ρ‚ΠΎΠ΄ΠΈΠΊΠΈ Π°Π½Π°Π»ΠΈΠ·Π° с ΠΈΡ… использованиСм, ΠΊΠ°ΠΊ ΠΏΡ€Π°Π²ΠΈΠ»ΠΎ, ΠΎΡ‚Π»ΠΈΡ‡Π°ΡŽΡ‚ΡΡ простотой ΠΈ Ρ‚ΠΎΡ‡Π½ΠΎΡΡ‚ΡŒΡŽ. Однако ΡˆΠΈΡ€ΠΎΠΊΠΎ примСняСмыС Π² аналитичСской ΠΏΡ€Π°ΠΊΡ‚ΠΈΠΊΠ΅ Π΄ΠΈΡΡƒΠ»ΡŒΡ„ΠΈΠ΄Ρ‹, Ρ‚Π°ΠΊΠΈΠ΅ ΠΊΠ°ΠΊ Π΄ΠΈΡ‚ΠΈΠΎΠ΄ΠΈΠΏΠΈΡ€ΠΈΠ΄ΠΈΠ½ ΠΈ 5,5β€²-дитиобис-(2-нитробСнзойная кислота), ΠΈΠΌΠ΅ΡŽΡ‚ ряд нСдостатков, ΠΊ числу ΠΊΠΎΡ‚ΠΎΡ€Ρ‹Ρ… относятся ΡƒΠ·ΠΊΠΈΠΉ Π΄ΠΈΠ°ΠΏΠ°Π·ΠΎΠ½ Π·Π½Π°Ρ‡Π΅Π½ΠΈΠΉ pH, ΠΏΡ€ΠΈ ΠΊΠΎΡ‚ΠΎΡ€Ρ‹Ρ… Π΄ΠΈΡΡƒΠ»ΡŒΡ„ΠΈΠ΄Ρ‹ ΠΌΠΎΠ³ΡƒΡ‚ Π±Ρ‹Ρ‚ΡŒ ΠΈΡΠΏΠΎΠ»ΡŒΠ·ΠΎΠ²Π°Π½Ρ‹, Π° Ρ‚Π°ΠΊΠΆΠ΅ низкая ΠΊΠΎΠ½Ρ‚Ρ€Π°ΡΡ‚Π½ΠΎΡΡ‚ΡŒ аналитичСской Ρ€Π΅Π°ΠΊΡ†ΠΈΠΈ. ΠŸΠΎΡΡ‚ΠΎΠΌΡƒ поиск Π½ΠΎΠ²Ρ‹Ρ… аналитичСских Π°Π³Π΅Π½Ρ‚ΠΎΠ² продолТаСтся. Для опрСдСлСния гомоцистСина ΠΈΡΠΏΠΎΠ»ΡŒΠ·ΠΎΠ²Π°Π½Ρ‹ Π΄ΠΈΡΡƒΠ»ΡŒΡ„ΠΈΠ΄Ρ‹ 2,2β€²-дитиобис[бСнзоксазол] ΠΈ 8,8β€²-дитиобис[Ρ…ΠΈΠ½ΠΎΠ»ΠΈΠ½]. Π˜Π·ΡƒΡ‡Π΅Π½Π° ΠΊΠΈΠ½Π΅Ρ‚ΠΈΠΊΠ° Ρ€Π΅Π°ΠΊΡ†ΠΈΠΈ ΠΌΠ΅ΠΆΠ΄Ρƒ гомоцистСином ΠΈ ΠΏΡ€Π΅Π΄Π»ΠΎΠΆΠ΅Π½Π½Ρ‹ΠΌΠΈ Π΄ΠΈΡΡƒΠ»ΡŒΡ„ΠΈΠ΄Π°ΠΌΠΈ. ИсслСдовано влияниС pH Π½Π° ΠΈΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ оптичСской плотности Π² процСссС протСкания аналитичСской Ρ€Π΅Π°ΠΊΡ†ΠΈΠΈ. Π Π°Π·Ρ€Π°Π±ΠΎΡ‚Π°Π½Ρ‹ Ρ‚ΠΎΡ‡Π½Ρ‹Π΅ ΠΈ Ρ‡ΡƒΠ²ΡΡ‚Π²ΠΈΡ‚Π΅Π»ΡŒΠ½Ρ‹Π΅ ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΈΠΊΠΈ опрСдСлСния гомоцистСина спСктрофотомСтричСским ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΎΠΌ, ΠΌΠ΅Ρ‚ΠΎΠ΄Π°ΠΌΠΈ капиллярного элСктрофорСза (КЭ), высокоэффСктивной Тидкостной Ρ…Ρ€ΠΎΠΌΠ°Ρ‚ΠΎΠ³Ρ€Π°Ρ„ΠΈΠΈ (Π’Π­Π–Π₯) ΠΈ кинСтичСским ΠΌΠ΅Ρ‚ΠΎΠ΄ΠΎΠΌ со спСктрофотомСтричСским Π΄Π΅Ρ‚Π΅ΠΊΡ‚ΠΈΡ€ΠΎΠ²Π°Π½ΠΈΠ΅ΠΌ (ΠΏΡ€Π΅Π΄Π΅Π» обнаруТСния гомоцистСина 1.1Β·10-6-7.8Β·10-6 М, ΠΎΡ‚Π½ΠΎΡΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΠ΅ стандартноС ΠΎΡ‚ΠΊΠ»ΠΎΠ½Π΅Π½ΠΈΠ΅ 1.5-4.6 %). ΠŸΡ€Π΅Π΄Π»ΠΎΠΆΠ΅Π½Π½Ρ‹Π΅ Π΄ΠΈΡΡƒΠ»ΡŒΡ„ΠΈΠ΄Ρ‹ Ρ‚Π°ΠΊΠΆΠ΅ Π±Ρ‹Π»ΠΈ ΠΈΡΠΏΠΎΠ»ΡŒΠ·ΠΎΠ²Π°Π½Ρ‹ ΠΏΡ€ΠΈ ΠΎΠΏΡ€Π΅Π΄Π΅Π»Π΅Π½ΠΈΠΈ ΡΡƒΠ»ΡŒΡ„Π³ΠΈΠ΄Ρ€ΠΈΠ»ΡŒΠ½Ρ‹Ρ… Π³Ρ€ΡƒΠΏΠΏ Π² ΠΎΠ±Ρ€Π°Π·Ρ†Π΅ чСловСчСской ΡƒΡ€ΠΈΠ½Ρ‹. Π Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹, ΠΏΠΎΠ»ΡƒΡ‡Π΅Π½Π½Ρ‹Π΅ ΠΏΡ€ΠΈ использовании 2,2β€²-дитиобис[бСнзоксазола] ΠΈ 8,8β€²-дитиобис[Ρ…ΠΈΠ½ΠΎΠ»ΠΈΠ½Π°] ΠΈ ΠΏΡ€ΠΈ использовании распространСнного Π² аналитичСской ΠΏΡ€Π°ΠΊΡ‚ΠΈΠΊΠ΅ 4,4β€²-Π΄ΠΈΡ‚ΠΈΠΎΠ΄ΠΈΠΏΠΈΡ€ΠΈΠ΄ΠΈΠ½Π°, оказались Π±Π»ΠΈΠ·ΠΊΠΈ, Ρ‡Ρ‚ΠΎ ΡƒΠΊΠ°Π·Ρ‹Π²Π°Π΅Ρ‚ Π½Π° ΠΏΡ€ΠΈΠΌΠ΅Π½ΠΈΠΌΠΎΡΡ‚ΡŒ ΠΏΡ€Π΅Π΄Π»ΠΎΠΆΠ΅Π½Π½Ρ‹Ρ… Ρ€Π΅Π°Π³Π΅Π½Ρ‚ΠΎΠ² Π² Π°Π½Π°Π»ΠΈΠ·Π΅ Ρ€Π΅Π°Π»ΡŒΠ½Ρ‹Ρ… ΠΎΠ±ΡŠΠ΅ΠΊΡ‚ΠΎΠ².ΠšΠ»ΡŽΡ‡Π΅Π²Ρ‹Π΅ слова: гомоцистСин, Π°ΠΌΠΈΠ½ΠΎΡ‚ΠΈΠΎΠ»Ρ‹, 2,2β€²-дитиобис[бСнзоксазол], 8,8β€²-дитиобис[Ρ…ΠΈΠ½ΠΎΠ»ΠΈΠ½]DOI: http://dx.doi.org/10.15826/analitika.2022.26.3.00
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