278 research outputs found

    Plant sulfolipid. II. Mutant study and phosphate deficiency

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    Study with SQDG-deficient mutants showed that formation of the sulfonic acid precursor, UDP-sulfoquinovose, in higher plants is considered to be catalyzed by the orthologous plant proteins SQD1. The second required plant enzyme, SQD2, is highly similar to glycosyltransferases and it is proposed that this protein represents sulfolipid synthase. The results of recent works have shown that for the stable activity PS II needs the presence of SQDG and that it participates in PS II recovering through some mechanism dependent on light. Under phosphate-limiting conditions a decrease in the content of one acidic lipid (PG) was accompanied by an increase in the content of the other acidic lipid (SQDG), which resulted in the maintenance of a certain level of total acidic lipids of chloroplast membranes

    Some aspects of periodontitis pathogenesis in children.

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    Inflammatory processes in the tissues surrounding tooth root are frequent enough and develop as the direct complication of caries. As acute periodontitis is manifested with grinding toothache and violation of phΒ­yΒ­sioΒ­logical act of chewing, symptoms of general intoxication, the continuous sluggish chronic periodontitis is harmful and dangerous to the organism as well. It forms the state of chronic ΠΎdontogenetic intoxication and chroneosepsis with wrong functioning of some internal organs and body systems. The like complications can cause significant disturbance to the function of kidneys, liver, heart, joints and their treatment without ablating focus of inflammation is often in- effective; this must be taken into account by doctors-interns. However, scanning of the oral cavity by conservative means has its difficulties mostly because of ignoring pathogenesis of such inflammation. That is why activity of ferments of blood dehydrogenases from the periapical tissues of the teeth affected with the chronic periodontitis was studied. The level of succinate dehydrogenase and alpha-glycerophosphate degydrogenase of lymphocytes of 110 schoolchildren aged 13-17 years old was studied. The main group of examined individuals included those of infected with tuberΒ­culousis – 50 individuals, and the control group (60 individuals) – clinically healthy ones without tuberculousis desease. All schoolchildren had 1 or 2 teeth affected with chronic periodontitis of the apical localization. The reΒ­searchers found that a significant inhibition of activity of succinate dehydrogenase and alpha-glycerophosphate degydrogenase ferments occurs in the inflammatory periodontal tissues, which indicates to local immunity decline, and as a consequence, pathogenic bacteria activation. In people infected with tuberculousis these violations were Β more developed. Such features of periodontitis pathogenesis must be taken into account when providing a combined treatment

    Anti-corrosion ceramic coatings on the surface of Nd-Fe-B repelling magnets

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    The results of vacuum-arc deposition of thin ZrOβ‚‚coatings to protect the surface of Nd-Fe-B permanent magnets used as repelling devices in orthodontics are presented. The structure, phase composition and mechanical properties of zirconium dioxide films have been investigated by means of SEM, XRD, EDX, XRF and nanoindentation method. It was revealed the formation of polycrystalline ZrOβ‚‚ films of monoclinic modification with average grain size 25 nm. The influence of the ZrOβ‚‚ coating in terms of its barrier properties for corrosion in quasi-physiological 0.9 NaCl solution has been studied. Electrochemical measurements indicated good barrier properties of the coating on specimens in the physiological solution environment

    Vascular mechanism in the formation of diclophenac induced gastrotoxicity: the association with the level of hydrogen sulfide

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    Department of Pharmacology, N. I. Pirogov National Medical University of Vinnitsa, UkraineBackground: Non-steroid anti-inflammatory drugs (NSAIDs)-induced gastrotoxicity arises as a result of imbalance between vasodilator and vasoconstrictor bioregulators. The influence of deficiency and excess of hydrogen sulfide on vascular mechanisms in the formation of NSAIDs-induced gastrotoxicity was investigated. Material and methods: Male nonlinear rats underwent preconditioning with donor of H2S (NaHS) and inhibitor of its synthesis (propargilglycine). Diclophenac sodium was introduced orally (8 mg/kg). In homogenates of rats’ gastric mucosa was evaluated the activity of prostaglandin-H-synthase (PgH-synthase), NO-synthase, content of nitrites and nitrates, H2S and the activity of cystathionine-Ξ³-lyase. In vitro H2S-induced relaxation of mesenteric arteries was measured. Results: Diclophenac sodium decreased cystathionine-Ξ³-lyase enzyme activity, NO-synthase and PGH-synthase (by 17-24%), content of their H2S metabolites and nitrites/nitrates (by 20-22%) in gastric mucosa, and accompanied with the decrease of mesenteric artery sensitivity to vasodilatory action of H2S (EC50 increased to 27.5%). H2S deficiency – increases and excess of H2S – inhibits the negative influence of diclophenac on the production of vasoactive molecules and H2S-induced relaxation of mesenteric arteries. Conclusions: Excess of H2S in organism increases the content of vasoligating molecules and thus can prevent vascular disturbances caused by NSAIDs in rat stomach mucosa

    N-Ρ„Π΅Π½Π΅Ρ‚ΠΈΠ»-2-гідрокси-4-оксо-4Н-ΠΏΡ–Ρ€ΠΈΠ΄ΠΎ[1,2-Π°]ΠΏΡ–Ρ€ΠΈΠΌΡ–Π΄ΠΈΠ½-3-карбоксаміди як ΠΌΠΎΠΆΠ»ΠΈΠ²Ρ– ΠΏΡ€ΠΎ- тивірусні Π°Π³Π΅Π½Ρ‚ΠΈ

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    Based on the preliminary calculated screening performed by the PASS programme the synthesis of the group of the corresponding N-phenethyl-2-hydroxy-4-oxo-4H-pyrido[1,2-a]pyrimidine-3-carboxamides as potential antiviral agents has been carried out by the interaction of ethyl esters of 2-hydroxy-4-oxo-4H-pyrido[1,2-a]pyrimidine-3-carboxylic acids with 2-arylethylamines in boiling ethanol. Their structure has been confirmed by the data of elemental analysis and NMR 1H spectroscopy. Of the Herpesviruses family such viruses as Herpes Simplex Viruses Type 1 and 2, Varicella-Zoster Virus, Epstein-Barr Virus, as well as Cytomegalovirus have been involved in the screening research. Influenza Virus was presented by two types: A (subtypes H1N1, H3N2, H5N1) and B. The group of viruses affecting different sections of the respiratory tract included Parainfluenza Virus, SARS Virus, Rhinovirus, Adenovirus and Respiratory Syncytial Virus. Besides, Measles Virus, Vaccinia Virus and related Cowpox Virus, Hepatitis B and C Viruses, as well as Venezuelan Equine Encephalitis Virus were involved. The group of viruses causing febrile states of varying severity in human was presented by Rift Valley Fever Virus, West Nile Virus, Yellow Fever Virus, Dengue Virus and Tacaribe Virus. According to the results of the tests performed N-(4-chlorophenethyl)- 2-hydroxy-4-oxo-4H-pyrido[1,2-a]pyrimidine-3-carboxamide has been recommended for further research. Having a low cytotoxicity this compound revealed a high antiviral activity in relation to the West Nile fever virus agent.На основании ΠΏΡ€ΠΎΠ²Π΅Π΄Π΅Π½Π½ΠΎΠ³ΠΎ ΠΏΠΎ ΠΏΡ€ΠΎΠ³Ρ€Π°ΠΌΠΌΠ΅ PASS ΠΏΡ€Π΅Π΄Π²Π°Ρ€ΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΠ³ΠΎ расчСтного скрининга Π² качСствС ΠΏΠΎΡ‚Π΅Π½Ρ†ΠΈΠ°Π»ΡŒΠ½Ρ‹Ρ… противовирусных Π°Π³Π΅Π½Ρ‚ΠΎΠ² взаимодСйствиСм этиловых эфиров 2-гидрокси-4-оксо-4Н-ΠΏΠΈΡ€ΠΈΠ΄ΠΎ[1,2-Π°] ΠΏΠΈΡ€ΠΈΠΌΠΈΠ΄ΠΈΠ½-3-ΠΊΠ°Ρ€Π±ΠΎΠ½ΠΎΠ²Ρ‹Ρ… кислот с 2-арилэтиламинами Π² кипящСм этиловом спиртС осущСствлСн синтСз Π³Ρ€ΡƒΠΏΠΏΡ‹ ΡΠΎΠΎΡ‚Π²Π΅Ρ‚ΡΡ‚Π²ΡƒΡŽΡ‰ΠΈΡ… N-Ρ„Π΅Π½Π΅Ρ‚ΠΈΠ»-2-гидрокси-4-оксо-4Н-ΠΏΠΈΡ€ΠΈΠ΄ΠΎ[1,2-Π°]ΠΏΠΈΡ€ΠΈΠΌΠΈΠ΄ΠΈΠ½-3-карбоксамидов. Π˜Ρ… строСниС ΠΏΠΎΠ΄Ρ‚Π²Π΅Ρ€ΠΆΠ΄Π΅Π½ΠΎ Π΄Π°Π½Π½Ρ‹ΠΌΠΈ элСмСнтного Π°Π½Π°Π»ΠΈΠ·Π° ΠΈ спСктроскопии ЯМР 1Н. Из сСмСйства гСрпСсвирусов Π² скрининговых исслСдованиях Π±Ρ‹Π»ΠΈ задСйствованы вирусы простого гСрпСса 1 ΠΈ 2 Ρ‚ΠΈΠΏΠΎΠ², вирус Π’Π°Ρ€ΠΈΡ†Π΅Π»Π»Π°-ЗостСра, вирус Π­ΠΏΡˆΡ‚Π΅ΠΉΠ½Π°-Π‘Π°Ρ€Ρ€Π°, Π° Ρ‚Π°ΠΊΠΆΠ΅ цитомСгаловирус. Вирус Π³Ρ€ΠΈΠΏΠΏΠ° Π±Ρ‹Π» прСдставлСн двумя Ρ‚ΠΈΠΏΠ°ΠΌΠΈ: А (ΠΏΠΎΠ΄Ρ‚ΠΈΠΏΡ‹ H1N1, H3N2, H5N1) ΠΈ Π’. Π“Ρ€ΡƒΠΏΠΏΠ° вирусов, ΠΏΠΎΡ€Π°ΠΆΠ°ΡŽΡ‰ΠΈΡ… Ρ€Π°Π·Π»ΠΈΡ‡Π½Ρ‹Π΅ ΠΎΡ‚Π΄Π΅Π»Ρ‹ Π΄Ρ‹Ρ…Π°Ρ‚Π΅Π»ΡŒΠ½ΠΎΠΉ систСмы, Π²ΠΊΠ»ΡŽΡ‡Π°Π»Π° вирус ΠΏΠ°Ρ€Π°Π³Ρ€ΠΈΠΏΠΏΠ°, вирус SARS, риновирус, адСновирус ΠΈ рСспираторный ΡΠΈΠ½Ρ†ΠΈΡ‚ΠΈΠ°Π»ΡŒΠ½Ρ‹ΠΉ вирус. ΠšΡ€ΠΎΠΌΠ΅ Ρ‚ΠΎΠ³ΠΎ, Π±Ρ‹Π»ΠΈ задСйствованы вирусы ΠΊΠΎΡ€ΠΈ, ΠΊΠΎΡ€ΠΎΠ²ΡŒΠ΅ΠΉ оспы, родствСнный Π΅ΠΌΡƒ Cowpox вирус, вирусы Π³Π΅ΠΏΠ°Ρ‚ΠΈΡ‚ΠΎΠ² Π’ ΠΈ Π‘, Π° Ρ‚Π°ΠΊΠΆΠ΅ вирус Π’Π΅Π½Π΅ΡΡƒΡΠ»ΡŒΡΠΊΠΎΠ³ΠΎ конского энцСфалита. Π“Ρ€ΡƒΠΏΠΏΠ° вирусов, Π²Ρ‹Π·Ρ‹Π²Π°ΡŽΡ‰ΠΈΡ… Ρƒ Ρ‡Π΅Π»ΠΎΠ²Π΅ΠΊΠ° Π»ΠΈΡ…ΠΎΡ€Π°Π΄ΠΎΡ‡Π½Ρ‹Π΅ состояния Ρ€Π°Π·Π»ΠΈΡ‡Π½ΠΎΠΉ стСпСни тяТСсти, прСдставлСна вирусом Π»ΠΈΡ…ΠΎΡ€Π°Π΄ΠΊΠΈ Π΄ΠΎΠ»ΠΈΠ½Ρ‹ Π ΠΈΡ„Ρ‚, вирусом Π—Π°ΠΏΠ°Π΄Π½ΠΎΠ³ΠΎ Нила, вирусом ΠΆΠ΅Π»Ρ‚ΠΎΠΉ Π»ΠΈΡ…ΠΎΡ€Π°Π΄ΠΊΠΈ, вирусом Π”Π΅Π½Π³Π΅ ΠΈ вирусом Π’Π°ΠΊΠ°Ρ€ΠΈΠ±Π΅. По Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Π°ΠΌ ΠΏΡ€ΠΎΠ²Π΅Π΄Π΅Π½Π½Ρ‹Ρ… испытаний для дальнСйшСго изучСния Ρ€Π΅ΠΊΠΎΠΌΠ΅Π½Π΄ΠΎΠ²Π°Π½ N-(4-Ρ…Π»ΠΎΡ€Ρ„Π΅Π½Π΅Ρ‚ΠΈΠ»)-2-гидрокси-4- оксо-4H-ΠΏΠΈΡ€ΠΈΠ΄ΠΎ-[1,2-a]ΠΏΠΈΡ€ΠΈΠΌΠΈΠ΄ΠΈΠ½-3-карбоксамид. ΠŸΡ€ΠΈ Π½ΠΈΠ·ΠΊΠΎΠΉ цитотоксичности это соСдинСниС проявило Π²Ρ‹ΡΠΎΠΊΡƒΡŽ ΠΏΡ€ΠΎΡ‚ΠΈΠ²ΠΎΠ²ΠΈΡ€ΡƒΡΠ½ΡƒΡŽ Π°ΠΊΡ‚ΠΈΠ²Π½ΠΎΡΡ‚ΡŒ ΠΏΠΎ ΠΎΡ‚Π½ΠΎΡˆΠ΅Π½ΠΈΡŽ ΠΊ Π²ΠΎΠ·Π±ΡƒΠ΄ΠΈΡ‚Π΅Π»ΡŽ Π»ΠΈΡ…ΠΎΡ€Π°Π΄ΠΊΠΈ Π—Π°ΠΏΠ°Π΄Π½ΠΎΠ³ΠΎ Нила.На підставі ΠΏΡ€ΠΎΠ²Π΅Π΄Π΅Π½ΠΎΠ³ΠΎ Π·Π° ΠΏΡ€ΠΎΠ³Ρ€Π°ΠΌΠΎΡŽ PASS ΠΏΠΎΠΏΠ΅Ρ€Π΅Π΄Π½ΡŒΠΎΠ³ΠΎ Ρ€ΠΎΠ·Ρ€Π°Ρ…ΡƒΠ½ΠΊΠΎΠ²ΠΎΠ³ΠΎ скринінгу як ΠΏΠΎΡ‚Π΅Π½Ρ†Ρ–ΠΉΠ½Ρ– противірусні Π°Π³Π΅Π½Ρ‚ΠΈ Π²Π·Π°Ρ”ΠΌΠΎΠ΄Ρ–Ρ”ΡŽ Π΅Ρ‚ΠΈΠ»ΠΎΠ²ΠΈΡ… СстСрів 2-гідрокси-4-оксо-4Н-ΠΏΡ–Ρ€ΠΈΠ΄ΠΎ[1,2-Π°]ΠΏΡ–Ρ€ΠΈΠΌΡ–Π΄ΠΈΠ½-3-ΠΊΠ°Ρ€Π±ΠΎΠ½ΠΎΠ²ΠΈΡ… кислот Π· 2-Π°Ρ€ΠΈΠ»Π΅Ρ‚ΠΈΠ»Π°ΠΌΡ–Π½Π°ΠΌΠΈ Ρƒ киплячому Π΅Ρ‚ΠΈΠ»ΠΎΠ²ΠΎΠΌΡƒ спирті здійснСно синтСз Π³Ρ€ΡƒΠΏΠΈ Π²Ρ–Π΄ΠΏΠΎΠ²Ρ–Π΄Π½ΠΈΡ… N-Ρ„Π΅Π½Π΅Ρ‚ΠΈΠ»- 2-гідрокси-4-оксо-4Н-ΠΏΡ–Ρ€ΠΈΠ΄ΠΎ[1,2-Π°]ΠΏΡ–Ρ€ΠΈΠΌΡ–Π΄ΠΈΠ½-3-карбоксамідів. Π‡Ρ… Π±ΡƒΠ΄ΠΎΠ²Π° ΠΏΡ–Π΄Ρ‚Π²Π΅Ρ€Π΄ΠΆΠ΅Π½Π° Π΄Π°Π½ΠΈΠΌΠΈ Π΅Π»Π΅ΠΌΠ΅Π½Ρ‚Π½ΠΎΠ³ΠΎ Π°Π½Π°Π»Ρ–Π·Ρƒ Ρ‚Π° спСктроскопії ЯМР 1Н. Π— сімСйства гСрпСсвірусів Ρƒ скринінгових дослідТСннях Π±ΡƒΠ»ΠΈ задіяні віруси простого гСрпСсу 1 Ρ‚Π° 2 Ρ‚ΠΈΠΏΡ–Π², вірус Π’Π°Ρ€Ρ–Ρ†Π΅Π»Π»Π°-ЗостСра, вірус Π•ΠΏΡˆΡ‚Π΅ΠΉΠ½Π°-Π‘Π°Ρ€Ρ€Π°, Π° Ρ‚Π°ΠΊΠΎΠΆ цитомСгаловірус. Вірус Π³Ρ€ΠΈΠΏΡƒ Π±ΡƒΠ»ΠΎ прСдставлСно Π΄Π²ΠΎΠΌΠ° Ρ‚ΠΈΠΏΠ°ΠΌΠΈ: А (ΠΏΡ–Π΄Ρ‚ΠΈΠΏΠΈ H1N1, H3N2, H5N1) Ρ‚Π° Π’. Π“Ρ€ΡƒΠΏΠ° вірусів, Ρ‰ΠΎ Π²ΠΈΠΊΠ»ΠΈΠΊΠ°ΡŽΡ‚ΡŒ ураТСння Ρ€Ρ–Π·Π½ΠΈΡ… Π²Ρ–Π΄Π΄Ρ–Π»Ρ–Π² Π΄ΠΈΡ…Π°Π»ΡŒΠ½ΠΎΡ— систСми, Π²ΠΊΠ»ΡŽΡ‡Π°Π»Π° вірус ΠΏΠ°Ρ€Π°Π³Ρ€ΠΈΠΏΡƒ, вірус SARS, риновірус, адСновірус Ρ‚Π° рСспіраторний ΡΠΈΠ½Ρ†ΠΈΡ‚Ρ–Π°Π»ΡŒΠ½ΠΈΠΉ вірус. ΠšΡ€Ρ–ΠΌ Ρ‚ΠΎΠ³ΠΎ, Π±ΡƒΠ»ΠΈ задіяні віруси ΠΊΠΎΡ€Ρƒ, коров’ячої віспи, споріднСний ΠΉΠΎΠΌΡƒ Cowpox вірус, віруси Π³Π΅ΠΏΠ°Ρ‚ΠΈΡ‚Ρ–Π² Π’ Ρ– Π‘, Π° Ρ‚Π°ΠΊΠΎΠΆ вірус Π’Π΅Π½Π΅ΡΡƒΠ΅Π»ΡŒΡΡŒΠΊΠΎΠ³ΠΎ ΠΊΡ–Π½ΡΡŒΠΊΠΎΠ³ΠΎ Π΅Π½Ρ†Π΅Ρ„Π°Π»Ρ–Ρ‚Ρƒ. Π“Ρ€ΡƒΠΏΠ° вірусів, Ρ‰ΠΎ Π²ΠΈΠΊΠ»ΠΈΠΊΠ°ΡŽΡ‚ΡŒ Ρƒ людини Π»ΠΈΡ…ΠΎΠΌΠ°Π½ΠΊΠΈ Ρ€Ρ–Π·Π½ΠΎΠ³ΠΎ ступСня тяТкості, прСдставлСна вірусом Π»ΠΈΡ…ΠΎΠΌΠ°Π½ΠΊΠΈ Π΄ΠΎΠ»ΠΈΠ½ΠΈ Π ΠΈΡ„Ρ‚, вірусом Π—Π°Ρ…Ρ–Π΄Π½ΠΎΠ³ΠΎ Нілу, вірусом ΠΆΠΎΠ²Ρ‚ΠΎΡ— Π»ΠΈΡ…ΠΎΠΌΠ°Π½ΠΊΠΈ, вірусом Π”Π΅Π½Π³Π΅ Ρ‚Π° вірусом Π’Π°ΠΊΠ°Ρ€Ρ–Π±Π΅. Π—Π° Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Π°ΠΌΠΈ ΠΏΡ€ΠΎΠ²Π΅Π΄Π΅Π½ΠΈΡ… Π²ΠΈΠΏΡ€ΠΎΠ±ΠΎΠ²ΡƒΠ²Π°Π½ΡŒ для подальшого вивчСння Ρ€Π΅ΠΊΠΎΠΌΠ΅Π½Π΄ΠΎΠ²Π°Π½ΠΎ N-(4-Ρ…Π»ΠΎΡ€Ρ„Π΅Π½Π΅Ρ‚ΠΈΠ»)- 2-гідрокси-4-оксо-4H-ΠΏΡ–Ρ€ΠΈΠ΄ΠΎ[1,2-a]ΠΏΡ–Ρ€ΠΈΠΌΡ–Π΄ΠΈΠ½-3-карбоксамід. ΠŸΡ€ΠΈ Π½ΠΈΠ·ΡŒΠΊΡ–ΠΉ цитотоксичності ця сполука виявила високу противірусну Π°ΠΊΡ‚ΠΈΠ²Π½Ρ–ΡΡ‚ΡŒ ΠΏΠΎ Π²Ρ–Π΄Π½ΠΎΡˆΠ΅Π½Π½ΡŽ Π΄ΠΎ Π·Π±ΡƒΠ΄Π½ΠΈΠΊΠ° Π»ΠΈΡ…ΠΎΠΌΠ°Π½ΠΊΠΈ Π—Π°Ρ…Ρ–Π΄Π½ΠΎΠ³ΠΎ Нілу

    ΠœΠ†Π–Π”Π˜Π‘Π¦Π˜ΠŸΠ›Π†ΠΠΠ ΠΠ ІНВЕГРАЦІЯ ЯК ЀАКВОР Π£Π”ΠžΠ‘ΠšΠžΠΠΠ›Π•ΠΠΠ― Π’Π˜ΠšΠ›ΠΠ”ΠΠΠΠ― Π€ΠΠ ΠœΠΠšΠžΠ›ΠžΠ“Π†Π‡ Π£ ΠœΠ•Π”Π˜Π§ΠΠžΠœΠ£ Π’Π˜Π¨Π†

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    The role and place of interdisciplinary integration are considered in this article as a factor of improving teaching at the Department of Pharmacology in M. Pyrohov Vinnytsia National Medical University. Interdisciplinary connections help to supplement the content of knowledge in one discipline from another, combine them and ensure formation of professionally important skills and abilities. The use of interdisciplinary technologies of doctor’s training allows to rise him on a new level of clinical thinking. This makes him able to solve tasks of medical practice comprehensively, basing on extensive data integration of different disciplines.Π£ статті розглянуті Ρ€ΠΎΠ»ΡŒ Ρ‚Π° місцС міТдисциплінарної Ρ–Π½Ρ‚Π΅Π³Ρ€Π°Ρ†Ρ–Ρ— як Ρ„Π°ΠΊΡ‚ΠΎΡ€Π° удосконалСння викладання  Π½Π° ΠΊΠ°Ρ„Π΅Π΄Ρ€Ρ– Ρ„Π°Ρ€ΠΌΠ°ΠΊΠΎΠ»ΠΎΠ³Ρ–Ρ— Π’Ρ–Π½Π½ΠΈΡ†ΡŒΠΊΠΎΠ³ΠΎ Π½Π°Ρ†Ρ–ΠΎΠ½Π°Π»ΡŒΠ½ΠΎΠ³ΠΎ ΠΌΠ΅Π΄ΠΈΡ‡Π½ΠΎΠ³ΠΎ унівСрситСту Ρ–ΠΌ. М. Π†. ΠŸΠΈΡ€ΠΎΠ³ΠΎΠ²Π°. ΠœΡ–ΠΆΠ΄ΠΈΡΡ†ΠΈΠΏΠ»Ρ–Π½Π°Ρ€Π½Ρ– зв’язки Π΄ΠΎΠΏΠΎΠΌΠ°Π³Π°ΡŽΡ‚ΡŒ Π΄ΠΎΠΏΠΎΠ²Π½ΠΈΡ‚ΠΈ зміст ΠΎΠ΄Π½Ρ–Ρ”Ρ— дисципліни знаннями Π· Ρ–Π½ΡˆΠΎΡ—, ΠΎΠ±β€™Ρ”Π΄Π½ΡƒΡŽΡ‚ΡŒ Ρ—Ρ… Ρ– Π·Π°Π±Π΅Π·ΠΏΠ΅Ρ‡ΡƒΡŽΡ‚ΡŒ формування профСсійно Π²Π°ΠΆΠ»ΠΈΠ²ΠΈΡ… Π²ΠΌΡ–Π½ΡŒ Ρ‚Π° Π½Π°Π²ΠΈΡ‡ΠΎΠΊ. Застосування міТдисциплінарних Ρ‚Π΅Ρ…Π½ΠΎΠ»ΠΎΠ³Ρ–ΠΉ ΠΏΡ–Π΄Π³ΠΎΡ‚ΠΎΠ²ΠΊΠΈ лікаря дозволяє підняти ΠΉΠΎΠ³ΠΎ Π½Π° якісно Π½ΠΎΠ²ΠΈΠΉ Ρ€Ρ–Π²Π΅Π½ΡŒ ΠΊΠ»Ρ–Π½Ρ–Ρ‡Π½ΠΎΠ³ΠΎ мислСння, Π·Π΄Π°Ρ‚Π½ΠΎΠ³ΠΎ комплСксно Π²ΠΈΡ€Ρ–ΡˆΡƒΠ²Π°Ρ‚ΠΈ завдання ΠΌΠ΅Π΄ΠΈΡ‡Π½ΠΎΡ— ΠΏΡ€Π°ΠΊΡ‚ΠΈΠΊΠΈ Π½Π° основі ΡˆΠΈΡ€ΠΎΠΊΠΎΠ³ΠΎ інтСгрування Π΄Π°Π½ΠΈΡ… Ρ€Ρ–Π·Π½ΠΎΠΌΠ°Π½Ρ–Ρ‚Π½ΠΈΡ… дисциплін

    Associations of the Novel Chemokine-Based Diagnostic Biomarker Panel with Different Phenotypes of Atopic Dermatitis in Children

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    Introduction. Serum total immune globulin E, thymus and activation-regulated chemokine (CTACK), and cutaneous T-cell attracting chemokine (TARC) are known as contributing to the pathophysiology of atopic dermatitis. Still, there is the data ambiguity regarding the associations of serum biomarkers with the clinical manifestations of the disease. Purpose. To detect the associations of total immune globulin E, thymus and activation regulated chemokine, and cutaneous T-cell attracting chemokine with different phenotypes of atopic dermatitis in children – alone and combined with other atopic comorbidities (seasonal allergic rhino-conjunctivitis, perennial allergic rhinitis, bronchial asthma). Materials and methods. The main group consisted of 39 patients aged from 3 to 18 years suffering from atopic dermatitis alone and with comorbid atopic disorders – seasonal allergic rhino-conjunctivitis, perennial allergic rhinitis, and bronchial asthma. The control group consisted of 47 children aged from 3 to 18 years, non-atopics, suffering from the gastro-intestinal tract disorders. The patients of both groups were tested for the serum concentrations of the abovementioned serum biomarkers. Results. There were detected significantly higher levels of total serum immune globulin E and CTACK in atopic patients if compared to controls. Serum TARC showed no significant differences between the main and control group; still, it had significant direct associations with the degree of severity of atopic dermatitis phenotypes alone and combined with other atopic disorders in general and with clinical index β€œscoring atopic dermatitis” in particular. It had also significant indirect associations with age in patients of the main and control groups. Serum total immune globulin E and CTACK had significant direct associations with all the studied atopic dermatitis phenotypes. There is a strong perspective of combining the serum total IgE, TARC and CTACK as the effective biomarker panel for assessing the intensity of inflammation within different atopic dermatitis phenotypes. Conclusions. Combined use of serum total immune globulin E, thymus and activation-regulated chemokine and cutaneous T-cell attracting chemokine is the novel perspective chemokine-based panel for assessing the degree of severity in patients that suffer from different phenotypes of atopic dermatitis alone and combined with comorbid atopic disorders. Π’Π²Π΅Π΄Π΅Π½ΠΈΠ΅. ΠžΠ±Ρ‰ΠΈΠΉ сывороточный ΠΈΠΌΠΌΡƒΠ½ΠΎΠ³Π»ΠΎΠ±ΡƒΠ»ΠΈΠ½ Π•, тимусом ΠΈ Π°ΠΊΡ‚ΠΈΠ²Π°Ρ†ΠΈΠ΅ΠΉ Ρ€Π΅Π³ΡƒΠ»ΠΈΡ€ΡƒΠ΅ΠΌΡ‹ΠΉ Ρ…Π΅ΠΌΠΎΠΊΠΈΠ½ (ВАРΠ₯) ΠΈ ΠΊΠΎΠΆΠ½Ρ‹ΠΉ Π’-ΠΊΠ»Π΅Ρ‚ΠΊΠΈ Π°Ρ‚Ρ‚Ρ€Π°ΠΊΡ‚ΠΈΡ€ΡƒΡŽΡ‰ΠΈΠΉ Ρ…Π΅ΠΌΠΎΠΊΠΈΠ½ (КВАΠ₯) извСстны ΠΊΠ°ΠΊ Ρ„Π°ΠΊΡ‚ΠΎΡ€Ρ‹ ΠΏΠ°Ρ‚ΠΎΠ³Π΅Π½Π΅Π·Π° атопичСского Π΄Π΅Ρ€ΠΌΠ°Ρ‚ΠΈΡ‚Π°. Π’Π΅ΠΌ Π½Π΅ ΠΌΠ΅Π½Π΅Π΅ сущСствуСт Π½Π΅ΠΎΠ΄Π½ΠΎΠ·Π½Π°Ρ‡Π½ΠΎΡΡ‚ΡŒ Π΄Π°Π½Π½Ρ‹Ρ… ΠΎΡ‚Π½ΠΎΡΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎ ассоциаций Π΄Π°Π½Π½Ρ‹Ρ… Π±ΠΈΠΎΠΌΠ°Ρ€ΠΊΠ΅Ρ€ΠΎΠ² с клиничСскими проявлСниями Π²Ρ‹ΡˆΠ΅ΡƒΠΏΠΎΠΌΡΠ½ΡƒΡ‚ΠΎΠ³ΠΎ заболСвания. ЦСль. Π’Ρ‹ΡΠ²ΠΈΡ‚ΡŒ взаимосвязь ΠΎΠ±Ρ‰Π΅Π³ΠΎ ΠΈΠΌΠΌΡƒΠ½ΠΎΠ³Π»ΠΎΠ±ΡƒΠ»ΠΈΠ½Π° E, тимусом ΠΈ Π°ΠΊΡ‚ΠΈΠ²Π°Ρ†ΠΈΠ΅ΠΉ Ρ€Π΅Π³ΡƒΠ»ΠΈΡ€ΡƒΠ΅ΠΌΠΎΠ³ΠΎ Ρ…Π΅ΠΌΠΎΠΊΠΈΠ½Π° ΠΈ ΠΊΠΎΠΆΠ½ΠΎΠ³ΠΎ Π’-ΠΊΠ»Π΅Ρ‚ΠΊΠΈ Π°Ρ‚Ρ‚Ρ€Π°ΠΊΡ‚ΠΈΡ€ΡƒΡŽΡ‰Π΅Π³ΠΎ Ρ…Π΅ΠΌΠΎΠΊΠΈΠ½Π° с Ρ€Π°Π·Π»ΠΈΡ‡Π½Ρ‹ΠΌΠΈ Ρ„Π΅Π½ΠΎΡ‚ΠΈΠΏΠ°ΠΌΠΈ атопичСского Π΄Π΅Ρ€ΠΌΠ°Ρ‚ΠΈΡ‚Π° Ρƒ Π΄Π΅Ρ‚Π΅ΠΉ ΠΎΡ‚Π΄Π΅Π»ΡŒΠ½ΠΎ ΠΈ Π² сочСтании с Π΄Ρ€ΡƒΠ³ΠΈΠΌΠΈ атопичСскими ΠΊΠΎΠΌΠΎΡ€Π±ΠΈΠ΄Π½Ρ‹ΠΌΠΈ состояниями (сСзонным аллСргичСским Ρ€ΠΈΠ½ΠΎΠΊΠΎΠ½ΡŠΡŽΠ½ΠΊΡ‚ΠΈΠ²ΠΈΡ‚ΠΎΠΌ, ΠΊΡ€ΡƒΠ³Π»ΠΎΠ³ΠΎΠ΄ΠΈΡ‡Π½Ρ‹ΠΌ аллСргичСским Ρ€ΠΈΠ½ΠΈΡ‚ΠΎΠΌ, Π±Ρ€ΠΎΠ½Ρ…ΠΈΠ°Π»ΡŒΠ½ΠΎΠΉ астмой). ΠœΠ°Ρ‚Π΅Ρ€ΠΈΠ°Π»Ρ‹ ΠΈ ΠΌΠ΅Ρ‚ΠΎΠ΄Ρ‹. ΠžΡΠ½ΠΎΠ²Π½ΡƒΡŽ Π³Ρ€ΡƒΠΏΠΏΡƒ составили 39 ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ² Π² возрастС ΠΎΡ‚ 3 Π΄ΠΎ 18 Π»Π΅Ρ‚, ΡΡ‚Ρ€Π°Π΄Π°ΡŽΡ‰ΠΈΡ… атопичСским Π΄Π΅Ρ€ΠΌΠ°Ρ‚ΠΈΡ‚ΠΎΠΌ ΠΎΡ‚Π΄Π΅Π»ΡŒΠ½ΠΎ ΠΈ с ΠΊΠΎΠΌΠΎΡ€Π±ΠΈΠ΄Π½Ρ‹ΠΌΠΈ атопичСскими состояниями – сСзонным аллСргичСским Ρ€ΠΈΠ½ΠΎΠΊΠΎΠ½ΡŠΡŽΠ½ΠΊΡ‚ΠΈΠ²ΠΈΡ‚ΠΎΠΌ, ΠΊΡ€ΡƒΠ³Π»ΠΎΠ³ΠΎΠ΄ΠΈΡ‡Π½Ρ‹ΠΌ аллСргичСским Ρ€ΠΈΠ½ΠΈΡ‚ΠΎΠΌ ΠΈ Π±Ρ€ΠΎΠ½Ρ…ΠΈΠ°Π»ΡŒΠ½ΠΎΠΉ астмой. ΠšΠΎΠ½Ρ‚Ρ€ΠΎΠ»ΡŒΠ½ΡƒΡŽ Π³Ρ€ΡƒΠΏΠΏΡƒ составили 47 Π΄Π΅Ρ‚Π΅ΠΉ Π² возрастС ΠΎΡ‚ 3 Π΄ΠΎ 18 Π»Π΅Ρ‚, Π±Π΅Π· Π°Ρ‚ΠΎΠΏΠΈΠΈ, с заболСваниями ΠΆΠ΅Π»ΡƒΠ΄ΠΎΡ‡Π½ΠΎ-ΠΊΠΈΡˆΠ΅Ρ‡Π½ΠΎΠ³ΠΎ Ρ‚Ρ€Π°ΠΊΡ‚Π°. ΠŸΠ°Ρ†ΠΈΠ΅Π½Ρ‚Π°ΠΌ ΠΎΠ±Π΅ΠΈΡ… Π³Ρ€ΡƒΠΏΠΏ ΠΏΡ€ΠΎΠ²ΠΎΠ΄ΠΈΠ»ΠΎΡΡŒ ΠΎΠΏΡ€Π΅Π΄Π΅Π»Π΅Π½ΠΈΠ΅ сывороточных ΠΊΠΎΠ½Ρ†Π΅Π½Ρ‚Ρ€Π°Ρ†ΠΈΠΉ Π²Ρ‹ΡˆΠ΅ΡƒΠΏΠΎΠΌΡΠ½ΡƒΡ‚Ρ‹Ρ… Π±ΠΈΠΎΠΌΠ°Ρ€ΠΊΠ΅Ρ€ΠΎΠ². Π Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ‹. Π‘Ρ‹Π»ΠΈ ΠΎΠ±Π½Π°Ρ€ΡƒΠΆΠ΅Π½Ρ‹ достовСрно Π±ΠΎΠ»Π΅Π΅ высокиС ΡƒΡ€ΠΎΠ²Π½ΠΈ ΠΎΠ±Ρ‰Π΅Π³ΠΎ сывороточного ΠΈΠΌΠΌΡƒΠ½ΠΎΠ³Π»ΠΎΠ±ΡƒΠ»ΠΈΠ½Π° Π• ΠΈ КВАΠ₯ Ρƒ ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ² с Π°Ρ‚ΠΎΠΏΠΈΠ΅ΠΉ ΠΏΠΎ ΡΡ€Π°Π²Π½Π΅Π½ΠΈΡŽ с ΠΊΠΎΠ½Ρ‚Ρ€ΠΎΠ»ΡŒΠ½ΠΎΠΉ Π³Ρ€ΡƒΠΏΠΏΠΎΠΉ ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ². Π‘Ρ‹Π²ΠΎΡ€ΠΎΡ‚ΠΎΡ‡Π½Ρ‹Π΅ ΡƒΡ€ΠΎΠ²Π½ΠΈ ВАРΠ₯ Π½Π΅ ΠΏΠΎΠΊΠ°Π·Π°Π»ΠΈ достовСрных Ρ€Π°Π·Π»ΠΈΡ‡ΠΈΠΉ ΠΌΠ΅ΠΆΠ΄Ρƒ ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚Π°ΠΌΠΈ основной ΠΈ ΠΊΠΎΠ½Ρ‚Ρ€ΠΎΠ»ΡŒΠ½ΠΎΠΉ Π³Ρ€ΡƒΠΏΠΏ; Ρ‚Π΅ΠΌ Π½Π΅ ΠΌΠ΅Π½Π΅Π΅ ΠΎΠ±Π½Π°Ρ€ΡƒΠΆΠ΅Π½Π° достовСрная прямая взаимосвязь со ΡΡ‚Π΅ΠΏΠ΅Π½ΡŒΡŽ тяТСсти Ρ„Π΅Π½ΠΎΡ‚ΠΈΠΏΠΎΠ² атопичСского Π΄Π΅Ρ€ΠΌΠ°Ρ‚ΠΈΡ‚Π° ΠΎΡ‚Π΄Π΅Π»ΡŒΠ½ΠΎ ΠΈ Π² сочСтании с Π΄Ρ€ΡƒΠ³ΠΈΠΌΠΈ атопичСскими коморбидностями Π² Ρ†Π΅Π»ΠΎΠΌ ΠΈ с клиничСским индСксом Β«scoring atopic dermatitisΒ» Π² частности. Π’Π°ΠΊΠΆΠ΅ имСлись достовСрныС ΠΎΠ±Ρ€Π°Ρ‚Π½Ρ‹Π΅ ассоциации с возрастом Ρƒ ΠΏΠ°Ρ†ΠΈΠ΅Π½Ρ‚ΠΎΠ² основной ΠΈ ΠΊΠΎΠ½Ρ‚Ρ€ΠΎΠ»ΡŒΠ½ΠΎΠΉ Π³Ρ€ΡƒΠΏΠΏ. ΠžΠ±Ρ‰ΠΈΠΉ сывороточный ΠΈΠΌΠΌΡƒΠ½ΠΎΠ³Π»ΠΎΠ±ΡƒΠ»ΠΈΠ½ Π• ΠΈ КВАΠ₯ ΠΈΠΌΠ΅Π»ΠΈ достовСрныС прямыС ассоциации со всСми исслСдованными Ρ„Π΅Π½ΠΎΡ‚ΠΈΠΏΠ°ΠΌΠΈ атопичСского Π΄Π΅Ρ€ΠΌΠ°Ρ‚ΠΈΡ‚Π°. БущСствуСт сильная пСрспСктива сочСтания сывороточного ΠΎΠ±Ρ‰Π΅Π³ΠΎ IgE, ВАРΠ₯ ΠΈ КВАΠ₯ Π² качСствС эффСктивной ΠΏΠ°Π½Π΅Π»ΠΈ Π±ΠΈΠΎΠΌΠ°Ρ€ΠΊΠ΅Ρ€ΠΎΠ² для ΠΎΡ†Π΅Π½ΠΊΠΈ интСнсивности воспалСния ΠΏΡ€ΠΈ Ρ€Π°Π·Π»ΠΈΡ‡Π½Ρ‹Ρ… Ρ„Π΅Π½ΠΎΡ‚ΠΈΠΏΠ°Ρ… атопичСского Π΄Π΅Ρ€ΠΌΠ°Ρ‚ΠΈΡ‚Π°. Π’Ρ‹Π²ΠΎΠ΄Ρ‹. ΠšΠΎΠΌΠ±ΠΈΠ½ΠΈΡ€ΠΎΠ²Π°Π½Π½ΠΎΠ΅ использованиС ΠΎΠ±Ρ‰Π΅Π³ΠΎ сывороточного ΠΈΠΌΠΌΡƒΠ½ΠΎΠ³Π»ΠΎΠ±ΡƒΠ»ΠΈΠ½Π° Π•, тимусом ΠΈ Π°ΠΊΡ‚ΠΈΠ²Π°Ρ†ΠΈΠ΅ΠΉ Ρ€Π΅Π³ΡƒΠ»ΠΈΡ€ΡƒΠ΅ΠΌΠΎΠ³ΠΎ Ρ…Π΅ΠΌΠΎΠΊΠΈΠ½Π° ΠΈ ΠΊΠΎΠΆΠ½ΠΎΠ³ΠΎ Π’-ΠΊΠ»Π΅Ρ‚ΠΎΡ‡Π½ΠΎΠ³ΠΎ Π°Ρ‚Ρ‚Ρ€Π°ΠΊΡ‚ΠΈΡ€ΡƒΡŽΡ‰Π΅Π³ΠΎ Ρ…Π΅ΠΌΠΎΠΊΠΈΠ½Π° прСдставляСт собой Π½ΠΎΠ²ΡƒΡŽ ΠΏΠ΅Ρ€ΡΠΏΠ΅ΠΊΡ‚ΠΈΠ²Π½ΡƒΡŽ Ρ…Π΅ΠΌΠΎΠΊΠΈΠ½ΠΎΠ²ΡƒΡŽ панСль для ΠΎΡ†Π΅Π½ΠΊΠΈ стСпСни тяТСсти Ρƒ Π΄Π΅Ρ‚Π΅ΠΉ, ΡΡ‚Ρ€Π°Π΄Π°ΡŽΡ‰ΠΈΡ… Ρ€Π°Π·Π»ΠΈΡ‡Π½Ρ‹ΠΌΠΈ Ρ„Π΅Π½ΠΎΡ‚ΠΈΠΏΠ°ΠΌΠΈ атопичСского Π΄Π΅Ρ€ΠΌΠ°Ρ‚ΠΈΡ‚Π° ΠΎΡ‚Π΄Π΅Π»ΡŒΠ½ΠΎ ΠΈ Π² сочСтании с ΠΊΠΎΠΌΠΎΡ€Π±ΠΈΠ΄Π½Ρ‹ΠΌΠΈ атопичСскими заболСваниями

    ΠŸΠΎΠΊΡ€Π°Ρ‰Π΅Π½ΠΈΠΉ синтСз, ΡΠΏΠ΅ΠΊΡ‚Ρ€Π°Π»ΡŒΠ½Ρ– характСристики Ρ‚Π° просторова Π±ΡƒΠ΄ΠΎΠ²Π° Π΅Ρ‚ΠΈΠ»ΠΎΠ²ΠΎΠ³ΠΎ СстСру 2-гідрокси-8-ΠΌΠ΅Ρ‚ΠΈΠ»-4-оксо-4Н-ΠΏΡ–Ρ€ΠΈΠ΄ΠΎ[1,2-Π°]ΠΏΡ–Ρ€ΠΈΠΌΡ–Π΄ΠΈΠ½-3-ΠΊΠ°Ρ€Π±ΠΎΠ½ΠΎΠ²ΠΎΡ— кислоти

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    The improved method for obtaining ethyl 2-hydroxy-8-methyl-4-oxo-4H-pyrido[1,2-a]pyrimidine-3-carboxylate being of interest as a base for synthesis of antiviral medicines has been suggested. The method involves a gradual addition of the solution of 2-amino-4-methylpyridine in triethylmethanetricarboxylate used as an acylating and condensing agent, as well as a high boiling heating agent simultaneously in the excess of triethylmethanetricarboxylate preheated to 150Β°C. This modification allows not only to reduce considerably regeneration of triethylmethanetricarboxylate taken in excess, but practically to avoid completely the undesirable formation of by-product – 2-hydroxy-8-methyl-N-(4-methypyridin-2-yl)-4-oxo-4H-pyrido[1,2-a]pyrimidine-3-carboxamide. It has been found by X-ray diffraction analysis that in the crystal the ethyl 2-hydroxy-8-methyl-4-oxo-4H-pyrido[1,2-a]pyrimidine-3-carboxylate synthesized exists in the zwitterionic form with localization of the positive charge at the protonated nitrogen atom and the negative charge at the carbon atom in position 3 of the pyridopyrimidine ring. Based on the study of NMR 1H and 13C spectra the assumption that the test compound exits as an equilibrium mixture of two tautomeric forms in solution has been expressed.ΠŸΡ€Π΅Π΄Π»ΠΎΠΆΠ΅Π½ ΡƒΠ»ΡƒΡ‡ΡˆΠ΅Π½Π½Ρ‹ΠΉ способ получСния этилового эфира 2-гидрокси-8-ΠΌΠ΅Ρ‚ΠΈΠ»-4-оксо-4Н-ΠΏΠΈΡ€ΠΈΠ΄ΠΎ[1,2-Π°] ΠΏΠΈΡ€ΠΈΠΌΠΈΠ΄ΠΈΠ½-3-ΠΊΠ°Ρ€Π±ΠΎΠ½ΠΎΠ²ΠΎΠΉ кислоты, ΠΏΡ€Π΅Π΄ΡΡ‚Π°Π²Π»ΡΡŽΡ‰Π΅Π³ΠΎ интСрСс ΠΊΠ°ΠΊ основа для синтСза противовирусных лСкарствСнных срСдств. ΠœΠ΅Ρ‚ΠΎΠ΄ Π·Π°ΠΊΠ»ΡŽΡ‡Π°Π΅Ρ‚ΡΡ Π² постСпСнном ΠΏΡ€ΠΈΠ±Π°Π²Π»Π΅Π½ΠΈΠΈ Π² ΠΏΡ€Π΅Π΄Π²Π°Ρ€ΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎ Π½Π°Π³Ρ€Π΅Ρ‚Ρ‹ΠΉ Π΄ΠΎ 150Β°Π‘ ΠΈΠ·Π±Ρ‹Ρ‚ΠΎΠΊ триэтил-мСтантрикарбоксилата раствора 2-Π°ΠΌΠΈΠ½ΠΎ-4-ΠΌΠ΅Ρ‚ΠΈΠ»ΠΏΠΈΡ€ΠΈΠ΄ΠΈΠ½Π° Π² триэтил-ΠΌΠ΅Ρ‚Π°Π½Ρ‚Ρ€ΠΈ-карбоксилатС, ΠΈΡΠΏΠΎΠ»ΡŒΠ·ΡƒΠ΅ΠΌΠΎΠΌ Π² качСствС Π°Ρ†ΠΈΠ»ΠΈΡ€ΡƒΡŽΡ‰Π΅Π³ΠΎ ΠΈ ΠΊΠΎΠ½Π΄Π΅Π½ΡΠΈΡ€ΡƒΡŽΡ‰Π΅Π³ΠΎ Π°Π³Π΅Π½Ρ‚Π°, Π° Ρ‚Π°ΠΊΠΆΠ΅ высококипящСго тСплоноситСля ΠΎΠ΄Π½ΠΎΠ²Ρ€Π΅ΠΌΠ΅Π½Π½ΠΎ. Вакая модификация позволяСт Π½Π΅ Ρ‚ΠΎΠ»ΡŒΠΊΠΎ Π·Π½Π°Ρ‡ΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎ ΡƒΠΏΡ€ΠΎΡΡ‚ΠΈΡ‚ΡŒ Ρ€Π΅Π³Π΅Π½Π΅Ρ€Π°Ρ†ΠΈΡŽ взятого Π² ΠΈΠ·Π±Ρ‹Ρ‚ΠΊΠ΅ триэтилмСтантри-карбоксилата, Π½ΠΎ ΠΈ практичСски ΠΏΠΎΠ»Π½ΠΎΡΡ‚ΡŒΡŽ ΠΈΠ·Π±Π΅ΠΆΠ°Ρ‚ΡŒ Π½Π΅ΠΆΠ΅Π»Π°Ρ‚Π΅Π»ΡŒΠ½ΠΎΠ³ΠΎ образования ΠΏΠΎΠ±ΠΎΡ‡Π½ΠΎΠ³ΠΎ 2-гидрокси-8-ΠΌΠ΅Ρ‚ΠΈΠ»-4-оксо-N-(4-ΠΌΠ΅Ρ‚ΠΈΠ»ΠΏΠΈΡ€ΠΈΠ΄ΠΈΠ½-2-ΠΈΠ»)-4Н-ΠΏΠΈΡ€ΠΈΠ΄ΠΎ[1,2-Π°]ΠΏΠΈΡ€ΠΈΠΌΠΈΠ΄ΠΈΠ½-3-карбоксамида. Π‘ ΠΏΠΎΠΌΠΎΡ‰ΡŒΡŽ рСнтгСноструктурного Π°Π½Π°Π»ΠΈΠ·Π° установлСно, Ρ‡Ρ‚ΠΎ Π² кристаллС синтСзированный этиловый эфир 2-гидрокси-8-ΠΌΠ΅Ρ‚ΠΈΠ»-4-оксо-4Н-ΠΏΠΈΡ€ΠΈΠ΄ΠΎ[1,2-Π°]ΠΏΠΈΡ€ΠΈΠΌΠΈΠ΄ΠΈΠ½-3-ΠΊΠ°Ρ€Π±ΠΎΠ½ΠΎΠ²ΠΎΠΉ кислоты сущСствуСт Π² Ρ†Π²ΠΈΡ‚Ρ‚Π΅Ρ€-ΠΈΠΎΠ½Π½ΠΎΠΉ Ρ„ΠΎΡ€ΠΌΠ΅ с Π»ΠΎΠΊΠ°Π»ΠΈΠ·Π°Ρ†ΠΈΠ΅ΠΉ ΠΏΠΎΠ»ΠΎΠΆΠΈΡ‚Π΅Π»ΡŒΠ½ΠΎΠ³ΠΎ заряда Π½Π° ΠΏΡ€ΠΎΡ‚ΠΎΠ½ΠΈΡ€ΠΎΠ²Π°Π½Π½ΠΎΠΌ Π°Ρ‚ΠΎΠΌΠ΅ Π°Π·ΠΎΡ‚Π° ΠΈ ΠΎΡ‚Ρ€ΠΈΡ†Π°Ρ‚Π΅Π»ΡŒΠ½ΠΎΠ³ΠΎ заряда Π½Π° Π°Ρ‚ΠΎΠΌΠ΅ ΡƒΠ³Π»Π΅Ρ€ΠΎΠ΄Π° Π² ΠΏΠΎΠ»ΠΎΠΆΠ΅Π½ΠΈΠΈ 3 ΠΏΠΈΡ€ΠΈΠ΄ΠΎΠΏΠΈΡ€ΠΈΠΌΠΈΠ΄ΠΈΠ½ΠΎΠ²ΠΎΠ³ΠΎ ядра. На основании изучСния спСктров ЯМР 1Н ΠΈ 13Π‘ высказано ΠΏΡ€Π΅Π΄ΠΏΠΎΠ»ΠΎΠΆΠ΅Π½ΠΈΠ΅, Ρ‡Ρ‚ΠΎ исслСдуСмоС соСдинСниС ΠΈ Π² растворС сущСствуСт Π² Π²ΠΈΠ΄Π΅ равновСсной смСси Π΄Π²ΡƒΡ… Ρ‚Π°ΡƒΡ‚ΠΎΠΌΠ΅Ρ€Π½Ρ‹Ρ… Ρ„ΠΎΡ€ΠΌ.Π—Π°ΠΏΡ€ΠΎΠΏΠΎΠ½ΠΎΠ²Π°Π½ΠΎ ΠΏΠΎΠΊΡ€Π°Ρ‰Π΅Π½ΠΈΠΉ спосіб одСрТання Π΅Ρ‚ΠΈΠ»ΠΎΠ²ΠΎΠ³ΠΎ СстСру 2-гідрокси-8-ΠΌΠ΅Ρ‚ΠΈΠ»-4-оксо-4Н-ΠΏΡ–Ρ€ΠΈΠ΄ΠΎ [1,2-Π°]ΠΏΡ–Ρ€ΠΈΠΌΡ–Π΄ΠΈΠ½-3-ΠΊΠ°Ρ€Π±ΠΎΠ½ΠΎΠ²ΠΎΡ— кислоти, який прСдставляє інтСрСс як основа для синтСзу противірусних Π»Ρ–ΠΊΠ°Ρ€ΡΡŒΠΊΠΈΡ… засобів. ΠœΠ΅Ρ‚ΠΎΠ΄ полягає Ρƒ поступовому Π΄ΠΎΠ΄Π°Π²Π°Π½Π½Ρ– Π² ΠΏΠΎΠΏΠ΅Ρ€Π΅Π΄Π½ΡŒΠΎ Π½Π°Π³Ρ€Ρ–Ρ‚ΠΈΠΉ Π΄ΠΎ 150Β°Π‘ надлишок триСтилмСтантрикарбоксилату Ρ€ΠΎΠ·Ρ‡ΠΈΠ½Ρƒ 2-Π°ΠΌΡ–Π½ΠΎ-4-ΠΌΠ΅Ρ‚ΠΈΠ»ΠΏΡ–Ρ€ΠΈΠ΄ΠΈΠ½Ρƒ Π² триСтилмСтантрикарбоксилаті, Ρ‰ΠΎ Π²ΠΈΠΊΠΎΡ€ΠΈΡΡ‚ΠΎΠ²ΡƒΡ”Ρ‚ΡŒΡΡ як Π°Ρ†ΠΈΠ»ΡƒΡŽΡ‡ΠΈΠΉ Ρ‚Π° ΠΊΠΎΠ½Π΄Π΅Π½ΡΡƒΡŽΡ‡ΠΈΠΉ Π°Π³Π΅Π½Ρ‚, Π° Ρ‚Π°ΠΊΠΎΠΆ як висококиплячий тСплоносій одночасно. Π’Π°ΠΊΠ° модифікація дозволяє Π½Π΅ Ρ‚Ρ–Π»ΡŒΠΊΠΈ Π·Π½Π°Ρ‡Π½ΠΎ спростити Ρ€Π΅Π³Π΅Π½Π΅Ρ€Π°Ρ†Ρ–ΡŽ взятого Ρƒ Π½Π°Π΄Π»ΠΈΡˆΠΊΡƒ триСтилмСтантрикарбоксилату, Π°Π»Π΅ ΠΉ ΠΏΡ€Π°ΠΊΡ‚ΠΈΡ‡Π½ΠΎ ΠΏΠΎΠ²Π½Ρ–ΡΡ‚ΡŽ ΡƒΠ½ΠΈΠΊΠ½ΡƒΡ‚ΠΈ Π½Π΅Π±Π°ΠΆΠ°Π½ΠΎΠ³ΠΎ утворСння ΠΏΠΎΠ±Ρ–Ρ‡Π½ΠΎΠ³ΠΎ 2-гідрокси-8-ΠΌΠ΅Ρ‚ΠΈΠ»-4-оксо-N-(4-ΠΌΠ΅Ρ‚ΠΈΠ»ΠΏΡ–Ρ€ΠΈΠ΄ΠΈΠ½-2-Ρ–Π»)-4Н-ΠΏΡ–Ρ€ΠΈΠ΄ΠΎ[1,2-Π°]ΠΏΡ–Ρ€ΠΈΠΌΡ–Π΄ΠΈΠ½-3-карбоксаміду. Π—Π° допомогою рСнтгСноструктурного Π°Π½Π°Π»Ρ–Π·Ρƒ встановлСно, Ρ‰ΠΎ Π² кристалі синтСзований Π΅Ρ‚ΠΈΠ»ΠΎΠ²ΠΈΠΉ СстСр 2-гідрокси-8-ΠΌΠ΅Ρ‚ΠΈΠ»-4-оксо-4Н-ΠΏΡ–Ρ€ΠΈΠ΄ΠΎ[1,2-Π°]ΠΏΡ–Ρ€ΠΈΠΌΡ–Π΄ΠΈΠ½-3-ΠΊΠ°Ρ€Π±ΠΎΠ½ΠΎΠ²ΠΎΡ— кислоти існує Ρƒ Ρ†Π²Ρ–Ρ‚Ρ‚Π΅Ρ€-Ρ–ΠΎΠ½Π½Ρ–ΠΉ Ρ„ΠΎΡ€ΠΌΡ– Π· Π»ΠΎΠΊΠ°Π»Ρ–Π·Π°Ρ†Ρ–Ρ”ΡŽ ΠΏΠΎΠ·ΠΈΡ‚ΠΈΠ²Π½ΠΎΠ³ΠΎ заряду Π½Π° ΠΏΡ€ΠΎΡ‚ΠΎΠ½ΠΎΠ²Π°Π½ΠΎΠΌΡƒ Π°Ρ‚ΠΎΠΌΡ– Π½Ρ–Ρ‚Ρ€ΠΎΠ³Π΅Π½Ρƒ Ρ– Π½Π΅Π³Π°Ρ‚ΠΈΠ²Π½ΠΎΠ³ΠΎ заряду Π½Π° Π°Ρ‚ΠΎΠΌΡ– ΠΊΠ°Ρ€Π±ΠΎΠ½Ρƒ Ρƒ ΠΏΠΎΠ»ΠΎΠΆΠ΅Π½Π½Ρ– 3 ΠΏΡ–Ρ€ΠΈΠ΄ΠΎΠΏΡ–Ρ€ΠΈΠΌΡ–Π΄ΠΈΠ½ΠΎΠ²ΠΎΠ³ΠΎ ядра. На основі вивчСння спСктрів ЯМР 1Н Ρ‚Π° 13Π‘ Π·Ρ€ΠΎΠ±Π»Π΅Π½ΠΎ припущСння, Ρ‰ΠΎ дослідТувана сполука Ρ– Π² Ρ€ΠΎΠ·Ρ‡ΠΈΠ½Ρ– існує Ρƒ вигляді Ρ€Ρ–Π²Π½ΠΎΠ²Π°ΠΆΠ½ΠΎΡ— ΡΡƒΠΌΡ–ΡˆΡ– Π΄Π²ΠΎΡ… Ρ‚Π°ΡƒΡ‚ΠΎΠΌΠ΅Ρ€Π½ΠΈΡ… Ρ„ΠΎΡ€ΠΌ

    Effect of aluminium on redox-homeostasis of common buckwheat (Fagopyrum esculentum)

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    Common buckwheat is a significant culture in Ukraine, whose importance for food security has increased in recent decades. An important biological feature of buckwheat is the ability of the crop to grow on poor and especially acidic soils. Common buckwheat was sown in Ukraine on the area of 125,000 ha in 2020, mainly in the central part of the country and in the soil-climatic zone Polesie in the north of the country. At the same time, the area under buckwheat cultivation has been steadily decreasing in the last decade, which is due to the low profitability of cultivation on mainly acidic soils. The research was conducted in the field conditions during 2012–2018 in Kiev region, as well as in laboratory conditions. ICP analysis and biochemical methods were used. Yield of buckwheat on light soils of low fertility depends largely on the level of acidity of the soil. On acidic sod-podzolic soils with loam substrate, the aluminum content of the layer is 20–40 cm higher, compared to a layer of 0–20 cm. This is probably one of the reasons why, when the concentration of aluminum in the soil profile is increased, the root system is located mainly in the upper layer of soil with a lower content of aluminum. In this case, the study of the mechanisms of resistance to the action of aluminum on acidic soils is an important component of the cost-effectiveness of crop production in the region. In acidic soils with pH < 5.0, phytotoxic aluminum (Al3+) rapidly inhibits root growth and afterwards negatively affects water and nutrient uptake in plants. Acquiring phytotoxic capacities, in this connection Al ions affect a wide range of cellular and molecular processes, with a consequent reduction in plant growth. In most plant species, reactive oxygen species (ROS) production can also be induced by Al toxicity leading to oxidative damage of biomolecules and biological membranes. We have detected an accumulation of Al ions in leaf tissues of treatment plants after 10 days of exposure. Tissues of F. esculentum roots contained 155.4% of control level of Al and tissues of F. esculentum leaves – 186.2% of control level of Al ions. Significant intensification of O2‒– generation in roots and leaf tissues as a reaction to Al addition to nutrient solution was detected. Increase in antioxidant enzymes activities and non fixed products of lipids peroxidation was characterized as a biochemical defense reaction of F. esculentum over the 10 days of exposure to Al (50 ΞΌM). Thus, the results show that the action of 50 ΞΌM of Al ions activated antioxidant enzymes – SOD and CAT and decreased oxidative processes, thus promotes pro/antioxidant balance of common buckwheat. These mechanisms of redox homeostasis can be triggers of morphological changes in buckwheat plants, which lead to increased crop resistance when growing on acidic soils with high aluminum content. Thus, the resistance of culture to acid soils may be associated with the possibility of increased accumulation of aluminum in the plant’s tissues, as well as in changes in redox homeostasis with subsequent morphological changes, and primarily the formation of the root system in the top layer of soil with a reduced content of aluminum

    The Complex Studying of Antarctic Biota

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    Results of five year period of Argentina islands region Antarctic biota complex investigations are described. There were described 41 algae new for the Galindez island biogeografical polygon territory. Check-list of terrestrial algae now consists of 57 species belongs to 3 phyla.Бтаття присвячСна Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Π°ΠΌ ΠΏ'ятирічного комплСксного вивчСння Π°Π½Ρ‚Π°Ρ€ΠΊΡ‚ΠΈΡ‡Π½ΠΎΡ— Π±Ρ–ΠΎΡ‚ΠΈ Π² Ρ€Π°ΠΉΠΎΠ½Ρ– ΠΡ€Π³Π΅Π½Ρ‚ΠΈΠ½ΡΡŒΠΊΠΈΡ… островів. Π£ Ρ€Π΅Π·ΡƒΠ»ΡŒΡ‚Π°Ρ‚Ρ– ΠΏΡ€ΠΎΠ²Π΅Π΄Π΅Π½ΠΈΡ… Π΄ΠΎΡΠ»Ρ–Π΄ΠΆΠ΅Π½ΡŒ систСматичний список Π½Π°Π·Π΅ΠΌΠ½ΠΈΡ… водоростСй Π±Ρ–ΠΎΠ³Π΅ΠΎΠ³Ρ€Π°Ρ„Ρ–Ρ‡Π½ΠΎΠ³ΠΎ ΠΏΠΎΠ»Ρ–Π³ΠΎΠ½Ρƒ Π½Π° острові Π“Π°Π»Ρ–Π½Π΄Π΅Π· поповнився Π½Π° 41 таксон Π²ΠΈΠ΄ΠΎΠ²ΠΎΠ³ΠΎ Ρ€Π°Π½Π³Ρƒ Ρ– Π²ΠΊΠ»ΡŽΡ‡Π°Ρ” 57 Π²ΠΈΠ΄Ρ–Π² Π· Ρ‚Ρ€ΡŒΠΎΡ… Π²Ρ–Π΄Π΄Ρ–Π»Ρ–Π²
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