Powered by OpenAIRE graph
Found an issue? Give us feedback
addClaim

This Research product is the result of merged Research products in OpenAIRE.

You have already added 0 works in your ORCID record related to the merged Research product.

Сравнительный анализ биологической активности антимикробного пептида, его конъюгата с амикацином и комбинаций с наночастицами серебра

выпускная квалификационная работа магистра

Сравнительный анализ биологической активности антимикробного пептида, его конъюгата с амикацином и комбинаций с наночастицами серебра

Abstract

На 83 с., 24 рисунка, 6 таблиц. Тема выпускной квалификационной работы: «Сравнительный анализ биологической активности антимикробного пептида, его конъюгата с амикацином и комбинаций с наночастицами серебра». Данная работа посвящена изучению антимикробных и гемолитических свойств пептида, имеющего конформацию β-шпильки, его конъюгата с амикацином и комбинаций с наночастицами серебра. В результате работы были определены минимальные ингибирующие концентрации исследуемых веществ в отношении бактерий методом серийных разведений в жидких питательных средах, содержащих микроорганизмы. Выявлены синергетические и аддитивные эффекты при совместном действии пептида с наночастицами серебра с помощью серийных разведений по методу "шахматной доски". Проведено сравнение влияния пептида и его комбинаций с наночастицами серебра на проницаемость внутренней мембраны E.coli ML-35p методом фотометрической оценки проницаемости мембран для хромогенных маркеров. Проведена оценка токсичности исследуемых веществ в отношении эритроцитов человека с помощью гемолитического теста. Установлено, что исследуемые вещества обладают выраженной антимикробной активностью и существенно более низкой гемолитической активностью, чем нативный пептид и, следовательно, могут рассматриваться в качестве перспективных прототипов новых лекарственных средств для терапии инфекций, вызванных антибиотикорезистентными бактериями. Данная работа выполнена на базе лаборатории дизайна и синтеза биологически активных пептидов отдела общей патологии и патологической физиологии ФГБНУ «Институт экспериментальной медицины».

83 pages, 24 pictures, 6 tables. Theme of the final qualification work: "A comparative analysis of the biological activity of the antimicrobial peptide, its conjugate with amikacin and combinations with silver nanoparticles". This work is devoted to the study of the antimicrobial and hemolytic properties of a peptide having a β-hairpin conformation, its conjugate with amikacin and combinations with silver nanoparticles. As a result of the work, the minimum inhibitory concentrations of the studied substances against bacteria were determined by the method of serial dilutions in liquid nutrient media containing microorganisms. Synergistic and additive effects have been identified with the combined action of a peptide with silver nanoparticles using serial dilutions using the checkerboard method. The effect of the peptide and its combinations with silver nanoparticles on the permeability of the inner membrane of E. coli ML-35p is compared by the method of photometric assessment of membrane permeability for chromogenic markers. Assessed the toxicity of the studied substances in relation to human red blood cells using a hemolytic test. It was found that the studied substances have pronounced antimicrobial activity and significantly lower hemolytic activity than the native peptide and therefore can be considered as promising prototypes of new drugs for the treatment of infections caused by antibiotic-resistant bacteria. This work was carried out on the basis of the laboratory for the design and synthesis of biologically active peptides of the Department of General Pathology and Pathological Physiology of the Institute of Experimental Medicine.

Keywords

конъюгация, antimicrobial activity, антимикробная активность, synergism, amikacin, гемолитическая активность, hemolytic activity, синергизм, амикацин, Пептиды, Серебро, conjugation

  • BIP!
    Impact byBIP!
    citations
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    0
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Average
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Average
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Average
Powered by OpenAIRE graph
Found an issue? Give us feedback
citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Related to Research communities
Upload OA version
Are you the author? Do you have the OA version of this publication?