Advantages of the composition and actyvity of a new combined ointment with ethony for treatment of the wound process

An experimental study of a new combined ointment with ethony for treatment of wounds was carried out and its advantages were established compared with the similar drugs Inflarax (LLC FC "Health"), Levomekol (ZAO SPC "Borshchagovsky HFZ") and Oflokain-Darnitsa® (ZAO FF "Darnitsa"), having the same indications for use as a new ointment. The osmotic activity of ointment with ethony was studied by the method of kinetics of water absorption in in vitro experiments. The antimicrobial effect of ointment with ethony relative to standard and hospital strains of microorganisms by diffusion in agar in the modification of wells was determined: S. aureus ATCC 25923, E. coli ATCC 25922, P. aeruginosa ATCC 27853, B. subtilis ATCC 6633, P. vulgaris ATCC 4636, C. albicans ATCC 885/653, S. aureus 23, E. coli 15, P. aeruginosa 39, P. vulgaris 59, K. pneumoniae 6. The anti-inflammatory activity of ointment with ethony was established in a model of non-allergic contact dermatitis caused by turpentine. The results of experimental studies indicate the high efficiency of the proposed combined composition of the ointment with ethony due to the optimal combination of the components of the ointment base and active substances. It was established that the ointment with ethony showed a pronounced and prolonged osmotic activity, which contributes to the complete penetration and release of the active substances of the ointment in the tissue. An ointment with ethony revealed a wide spectrum of antimicrobial activity with respect to standard and hospital strains: with respect to C. albicans ATCC 885/653 and K. pneumoniae 6, this ointment was superior in activity to all comparison drugs. The ointment with ethony showed a pronounced anti-inflammatory effect, superior to the comparison drugs in effectiveness. Thus, due to the presence of a wide spectrum of pharmacological activity, ethony ointment can be recommended for the treatment of wounds with severe exudation in the first phase of the wound process, for wounds infected with mixed bacterial and fungal microflora, and for the prevention of their complications, as well as in complex therapy of the skin inflammatory processes.

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In Vitro Coliform Resistance to Bioactive Compounds in Urinary Infection, Assessed in a Lab Catheterization Model

Applied Sciences ◽

10.3390/app11094315 ◽

2021 ◽

Vol 11 (9) ◽

pp. 4315

Author(s):

Emanuel Vamanu ◽

Laura Dorina Dinu ◽

Cristina Mihaela Luntraru ◽

Alexandru Suciu

Keyword(s):

Urinary Tract ◽

Bioactive Compounds ◽

Urinary Tract Infections ◽

Antimicrobial Effect ◽

Biologically Active ◽

Bacterial Strains ◽

E Coli ◽

Functional Product ◽

Tract Infections

Bioactive compounds and phenolic compounds are viable alternatives to antibiotics in recurrent urinary tract infections. This study aimed to use a natural functional product, based on the bioactive compounds’ composition, to inhibit the uropathogenic strains of Escherichia coli. E. coli ATCC 25922 was used to characterize the IVCM (new in vitro catheterization model). As support for reducing bacterial proliferation, the cytotoxicity against a strain of Candida albicans was also determined (over 75% at 1 mg/mL). The results were correlated with the analysis of the distribution of biologically active compounds (trans-ferulic acid-268.44 ± 0.001 mg/100 g extract and an equal quantity of Trans-p-coumaric acid and rosmarinic acid). A pronounced inhibitory effect against the uropathogenic strain E. coli 317 (4 log copy no./mL after 72 h) was determined. The results showed a targeted response to the product for tested bacterial strains. The importance of research resulted from the easy and fast characterization of the functional product with antimicrobial effect against uropathogenic strains of E. coli. This study demonstrated that the proposed in vitro model was a valuable tool for assessing urinary tract infections with E. coli.

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Histone/protein deacetylases and T-cell immune responses

Blood ◽

10.1182/blood-2011-10-292003 ◽

2012 ◽

Vol 119 (11) ◽

pp. 2443-2451 ◽

Cited By ~ 85

Author(s):

Tatiana Akimova ◽

Ulf H. Beier ◽

Yujie Liu ◽

Liqing Wang ◽

Wayne W. Hancock

Keyword(s):

T Cell ◽

Cell Biology ◽

T Regulatory Cells ◽

Hdac Inhibitors ◽

Experimental Studies ◽

Cell Subset ◽

Histone Protein ◽

Anti Inflammatory

Abstract Clinical and experimental studies show that inhibition of histone/protein deacetylases (HDAC) can have important anti-neoplastic effects through cytotoxic and proapoptotic mechanisms. There are also increasing data from nononcologic settings that HDAC inhibitors (HDACi) can exhibit useful anti-inflammatory effects in vitro and in vivo, unrelated to cytotoxicity or apoptosis. These effects can be cell-, tissue-, or context-dependent and can involve modulation of specific inflammatory signaling pathways as well as epigenetic mechanisms. We review recent advances in the understanding of how HDACi alter immune and inflammatory processes, with a particular focus on the effects of HDACi on T-cell biology, including the activation and functions of conventional T cells and the unique T-cell subset, composed of Foxp3+ T-regulatory cells. Although studies are still needed to tease out details of the various biologic roles of individual HDAC isoforms and their corresponding selective inhibitors, the anti-inflammatory effects of HDACi are already promising and may lead to new therapeutic avenues in transplantation and autoimmune diseases.

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ANTIMICROBIAL ACTIVITY STUDY OF NEW QUINAZOLIN-4(3H)-ONES AGAINST STAPHYLOCOCCUS AUREUS AND STREPTOCOCCUS PNEUMONIAE

Pharmacy & Pharmacology ◽

10.19163/2307-9266-2021-9-4-318-329 ◽

2021 ◽

Vol 9 (4) ◽

pp. 318-329

Author(s):

M. A. Samotrueva ◽

A. A. Ozerov ◽

A. A. Starikova ◽

N. M. Gabitova ◽

D. V. Merezhkina ◽

...

Keyword(s):

Staphylococcus Aureus ◽

Antimicrobial Activity ◽

Streptococcus Pneumoniae ◽

Active Sites ◽

Wide Spectrum ◽

Experimental Studies ◽

Amide Group ◽

Pharmacological Effect ◽

Dilution Method

Quinazolin-4(3H)-one derivatives exhibiting a wide spectrum of a pharmacological activity, represent a promising class of substances used to obtain antibacterial agents, which is especially important in the context of the emergence of pathogenic microorganisms’ resistance to drugs used in medicine. It has been proved that compounds having a naphthyl radical in the molecule, as well as an amide group bound to the benzene ring as quinazolinone substituents, are characterized by a pronounced antimicrobial activity against Staphylococcus aureus and Streptococcus pneumoniae.The aim of the research is a primary microbiological screening of the in vitro antimicrobial activity of new quinazolin-4(3H)-one derivatives against Staphylococcus aureus and Streptococcus pneumoniae, as well as the assessment of the relationship between the pharmacological effect and the structural transformation of the substance molecule, lipophilicity and the possibility of forming resistance to them.Materials and methods. The experimental studies have been carried out using well-known nosocomial pathogens of infectious and inflammatory diseases Staphylococcus aureus and Streptococcus pneumoniae by a serial dilution method.Results. A compound containing a naphthyl radical in its structure, which contributes to an increase in the hydrophobicity of the substance and its solubility in the membrane of a bacterial cell, has a bacteriostatic effect against both Staphylococcus aureus and Streptococcus pneumoniae. A similar pharmacological effect is exhibited by a derivative with an amide group as a substituent of the quinazolinone nucleus linked to a phenyl radical, which probably contributes to an increase in the degree of binding to active sites of enzymes involved in the DNA replication, and protein synthesis. Obviously, the increased lipophilicity, which promotes better binding to the efflux protein, cannot serve as objective characteristics of the emergence possibility of the pathogen’s resistance to this substance.Conclusion. Among the synthesized compounds, the leading substances that exhibit an antimicrobial activity against Staphylococcus aureus and Streptococcus pneumonia, have been identified. The assessment of the chemical structure made it possible to substantiate their pharmacological action and draw conclusions about the possibility of developing resistance to it in microbial cells.

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Essential Oils as a Feed Additives: Pharmacokinetics and Potential Toxicity in Monogastric Animals

Animals ◽

10.3390/ani9060352 ◽

2019 ◽

Vol 9 (6) ◽

pp. 352 ◽

Cited By ~ 6

Author(s):

Pavel Horky ◽

Sylvie Skalickova ◽

Kristyna Smerkova ◽

Jiri Skladanka

Keyword(s):

Essential Oils ◽

Reproductive Toxicity ◽

Antimicrobial Effect ◽

Feed Additives ◽

The Body ◽

Syzygium Aromaticum ◽

High Antibacterial Activity ◽

Active Substances

Essential oils (EOs) are now a hot topic in finding modern substitutes for antibiotics. Many studies have shown positive results and confirmed their high antibacterial activity both in vitro and in vivo. Deservedly, there is an attempt to use EOs as a substitute for antibiotics, which are currently limited by legislation in animal breeding. Given the potential of EOs, studies on their fate in the body need to be summarized. The content of EO’s active substances varies depending on growing conditions and consequently on processing and storage. Their content also changes dynamically during the passage through the gastrointestinal tract and their effective concentration can be noticeably diluted at their place of action (small intestine and colon). Based on the solubility of the individual EO’s active substances, they are eliminated from the body at different rates. Despite a strong antimicrobial effect, some oils can be toxic to the body and cause damage to the liver, kidneys, or gastrointestinal tissues. Reproductive toxicity has been reported for Origanum vulgare and Mentha arvensis. Several publications also address the effect on the genome. It has been observed that EOs can show both genoprotective effects (Syzygium aromaticum) and genotoxicity, as is the case of Cinnamomum camphor. This review shows that although oils are mainly studied as promising antimicrobials, it is also important to assess animal safety.

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Creating Hybrid Genes by Homologous Recombination

Disease Markers ◽

10.1155/2000/596468 ◽

2000 ◽

Vol 16 (1-2) ◽

pp. 3-13 ◽

Cited By ~ 5

Author(s):

Peter L. Wang

Keyword(s):

Directed Evolution ◽

High Efficiency ◽

Genomic Sequence ◽

Sequence Data ◽

Strand Breaks ◽

E Coli ◽

Hybrid Genes ◽

Distinct Features

Recombination of homologous genes is a powerful mechanism for generating sequence diversity, and can be applied to protein analysis and directed evolution.In vitrorecombination methods such as DNA shuffling are very flexible and can give hybrid genes with multiple crossovers; they have been used extensively to evolve proteins with improved and novel properties.In vivorecombination in bothE. coliand yeast is greatly enhanced by double-strand breaks; forE. coli, mutant strains are often necessary to obtain high efficiency. Intra- and inter-molecular recombinationIn vivohave distinct features; both give hybrids with one or two crossovers, and have been used to study structure-function relationships of many proteins. Recentlyin vivorecombination has been used to generate diversity for directed evolution, creating a large phage display antibody library. Recombination methods will become increasingly useful in light of the explosion in genomic sequence data and potential for engineered proteins.

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Sensitivity of L. casei and E. сoli to active substances of anti-parasitic preparations

Scientific Messenger of LNU of Veterinary Medicine and Biotechnology ◽

10.15421/nvlvet8713 ◽

2018 ◽

Vol 20 (87) ◽

pp. 65-69

Author(s):

R.A. Peleno

Keyword(s):

Minimum Inhibitory Concentration ◽

Growth Retardation ◽

Inhibitory Concentration ◽

Probiotic Strain ◽

Diffusion Method ◽

Simultaneous Application ◽

Minimal Inhibitory Concentrations ◽

E Coli ◽

Active Substances

The data of the influence of active substances of anthelmintic and antiprotozoal preparations on the growth of L. casei IMB B-7280 and E. coli 055K59 are provided in the article. Their minimal inhibitory concentrations were determined for these strains of microorganisms and the active substances with which possible simultaneous application of probiotic strain L. casei IMB В-7280 is established. With this aim, the effect on the growth of L. casei IMB B-7280 and E. coli 055K59 and the minimum inhibitory concentration of fenbendazole, levamisole and ivermectin, which are part of the anthelmintic preparations and amprolium, tylosin, sodium sulfadimexone and sodium sulfatyazole, which are active substances of antiprotozoal drugs, were investigated. The determination of the minimum inhibitory concentration of the active substances of antiparasitic agents against these strains of microorganisms was carried out in in vitro experiments by serial dilutions in a dense MRS environment and MPA, and a study of the effect on the growth by diffusion method, followed by measurement of growth retardation zones in millimeters. It is established that among active substances of anthelmintic preparations only phenbendazole caused growth retardation and only relative to L. casei IMB B-7280. Among the active substances of antiprotozoal drugs, sodium sulfatyazole was the most active, which inhibited growth as L. casei IMB-7280 and E. coli 055K59 № 3912/41. Thylosin was effective only in relation to L. casei IMB B-7280 and at the highest concentration of 0.03%, the growth retardation zone was 23.4 ± 0.92 mm. Sodium sulfadimetoxin caused the growth retardation of L. сasei IMB В-7280 only at the highest concentration. The minimum inhibitory concentration of active substances of anti-parasitic drugs was different for strains L. casei IMB B-7280 and E. coli 055K59 № 3912/4. The strongest inhibitory effect was shown by tylosin, which stopped the growth of L. casei IMB B-7280 and E. coli 055K59 № 3912/41 respectively at concentrations of 0.00125 and 50.0 mg/ml. Active substances such as amprolium, levamisole and ivermectin did not significantly inhibit the growth of L. casei, IMB B-7280 and E. coli 055K59 № 3912/41, since their minimal inhibitory concentration was in the range of 4000 to 6000 mg ml.

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Antimicrobial Effect Of Honey Distributed Around Pasar Minggu Jakarta Selatan

SANITAS : Jurnal Teknologi dan Seni Kesehatan ◽

10.36525/sanitas.2017.15 ◽

2017 ◽

Vol 8 (2) ◽

pp. 101-106

Author(s):

Ruth Elenora Kristanty ◽

Junie Suriawati ◽

Priyanto Dwi Nugroho

Keyword(s):

Infectious Diseases ◽

Food Product ◽

Antimicrobial Effect ◽

Inhibition Zone ◽

Diffusion Method ◽

Bacteria Growth ◽

E Coli ◽

Gram Positive Bacteria ◽

Almost All

Honey is a highly nutritious food product and consumed by almost all the population in the world. It has a function as an antimicrobial. Staphylococcus aureus (S. aureus) is a common Gram-positive bacteria in food and Escherichia coli (E. coli) is a Gram-negative bacteria that often appears in environmental sanitation issues that both can cause infectious diseases. Some infectious diseases can be treated with antimicrobials such as honey. The purpose of this study was to test the antimicrobial effects on honey products distributed in Pasar Minggu area. The antimicrobial effect test was performed in vitro using agar diffusion method by measuring the inhibition zone formed where the bacteria growth was inhibited by the presence of sample. The concentration of samples were 25%, 50%, 75%, and 100% (not diluted) and as aquades control. The results showed that honey tested with various dilution concentrations resulted inhibition zone and. The higher concentration of the inhibited zone zone showed antimicrobial activity against S. aureus and E. coli.

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Th17/Treg Imbalance in Chronic Obstructive Pulmonary Disease: Clinical and Experimental Evidence

Frontiers in Immunology ◽

10.3389/fimmu.2021.804919 ◽

2021 ◽

Vol 12 ◽

Author(s):

Juliana Dias Lourenço ◽

Juliana Tiyaki Ito ◽

Milton de Arruda Martins ◽

Iolanda de Fátima Lopes Calvo Tibério ◽

Fernanda Degobbi Tenorio Quirino dos Santos Lopes

Keyword(s):

Chronic Obstructive Pulmonary Disease ◽

Immune Responses ◽

Experimental Evidence ◽

Pulmonary Disease ◽

Experimental Studies ◽

Treg Cells ◽

Chronic Obstructive ◽

Obstructive Pulmonary Disease ◽

Anti Inflammatory

The imbalance between pro- and anti-inflammatory immune responses mediated by Th17 and Treg cells is deeply involved in the development and progression of inflammation in chronic obstructive pulmonary disease (COPD). Several clinical and experimental studies have described the Th17/Treg imbalance in COPD progression. Due to its importance, many studies have also evaluated the effect of different treatments targeting Th17/Treg cells. However, discrepant results have been observed among different lung compartments, different COPD stages or local and systemic markers. Thus, the data must be carefully examined. In this context, this review explores and summarizes the recent outcomes of Th17/Treg imbalance in COPD development and progression in clinical, experimental and in vitro studies.

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Synthesis and biological evaluation of 2-(4-methylsulfonyl phenyl) indole derivatives: Multi-target compounds with dual antimicrobial and anti-inflammatory activities

10.21203/rs.2.17036/v3 ◽

2020 ◽

Author(s):

Ahmed Shaker ◽

Eman K. A. Abdelall ◽

Khaled R. A. Abdellatif ◽

Hamdy M. Abdel-Rahman

Keyword(s):

Active Site ◽

High Selectivity ◽

Biological Evaluation ◽

Indole Derivatives ◽

E Coli ◽

Cox 2 ◽

Anti Inflammatory ◽

Cox 2 Inhibitors ◽

Synthesis And Biological Evaluation

Abstract Three series of 2-(4-methylsulfonylphenyl) indole derivatives have been designed and synthesized. The synthesized compounds were evaluated for their antimicrobial, COX inhibitory and anti-inflammatory activities. Compound 7g was identified to be the most potent antibacterial candidate against strains of MRSA , E. coli, K. pneumoniae, P. aeruginosa, and A. baumannii , respectively with safe therapeutic dose. Compounds 7a-k, 8a-c and 9a-c showed good anti-inflammatory activity with high selectivity toward COX-2 in comparison with reference drugs indomethacin and celecoxib. Compounds 9a-c were found to release moderate amounts of NO to decrease the side effects associated with selective COX-2 inhibitors. A molecular modeling study for compounds 7b, 7h, and 7i into COX-2 active site correlated with results of in vitro COX-2 inhibition assays.

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