scholarly journals Impact of Biologically Active Complexes of L. rhamnosus GG and S. boulardii After Storage Under Low Temperatures on Biofilm Forming Ability in Corynebacteria

2021 ◽  
Vol 31 (2) ◽  
pp. 127-138
Author(s):  
Olena Isayenko ◽  
◽  
Oksana Knysh ◽  
Mykola Popov ◽  
Valeriy Minukhin ◽  
...  
Keyword(s):  
Low Temperatures ◽  
Lactobacillus Rhamnosus ◽  
Saccharomyces Boulardii ◽  
Biologically Active ◽  
Structural Components ◽  
Lactobacillus Rhamnosus Gg ◽  
Test Culture ◽  
Pathogenic Agents ◽  
Active Substances ◽  
Observation Period

This paper describes the temperature regimens and shelf life of biologically active complexes (structural components and metabolites) of Lactobacillus rhamnosus GG and Saccharomyces boulardii, which have antimicrobial activity and reduce biofi lm formation in pathogenic agents of Corynebacterium spp. Preservation of biological activity of complexes after 6-month storage (observation period) at (−23 ± 1)°C and for 60 days (observation period) under hypothermia at (4 ± 1)°C has been demonstrated. The degree of inhibition of biofi lm formation in pathogenic corynebacteria depended on sensitivity of the Corynebacterium spp. test-culture strain to products of microbial origin. A mixture of lactobacillus and saccharomycete metabolites displayed weak biofi lm formation by toxicogenic strains of corynebacteria (p < 0.05). Our fi ndings testifi ed to a possible use of biologically active substances, stored at 4 and −23°C in designing the L. rhamnosus GG and S. boulardii complexes and in technological processes of their production to prevent the persistence of the diphtheria pathogens.

scholarly journals Synergistic activity of filtrates of Lactobacillus rhamnosus and Saccharomyces boulardii and antibacterial preparations against Corynebacterium spp.

2019 ◽  
Vol 10 (4) ◽  
pp. 445-456 ◽  
Author(s):  
O. Y. Isayenko
Keyword(s):  
Antimicrobial Agents ◽  
Lactobacillus Rhamnosus ◽  
Saccharomyces Boulardii ◽  
Biologically Active Substances ◽  
Biologically Active ◽  
Synergistic Activity ◽  
Structural Components ◽  
Antibacterial Drugs ◽  
Active Substances ◽  
Test Cultures

We present the results of the first study of the combined influence of the biologically active substances Lactobacillus rhamnosus GG ATCC 53103 and Saccharomyces boulardii, obtained by the author’s method, and antibacterial agents on Corynebacterium spp. The first area of research was the study of increasing the sensitivity of toxigenic microorganisms to antimicrobial drugs due to the consecutive effects of the structural components and metabolites of L. rhamnosus GG and S. boulardii and antibacterial drugs on Corynebacterium spp. tox+. The greatest increase in the sensitivity of test-cultures of corynebacteria to penicillin (by 19.4 mm), imipenem (by 15.0 mm), vancomycin (by 12.0 mm), gentamicin (by 11.0 mm), ciprofloxacin (by 9.8 mm), erythromycin (by 9.6 mm), cefotaxime (by 9.5 mm) occurred due to the products of lactobacteria and a combination of metabolites of lactobacteria and saccharomycetes. The second area of research was the study of the synergic activity of substances L. rhamnosus GG and S. boulardii and traditional antibacterial drugs manifested by their simultaneous effect on Corynebacterium spp. Maximum potentiation of azithromycin (by 4.6 mm), erythromycin (by 4.5 mm), cefotaxime (by 2.2 mm), ceftriaxone (by 1.6 mm) and ampicillin (by 1.0 mm) relative to corynebacteria was also observed under the influence of lactobacteria metabolites and a combination of lactobacteria and saccharomycetes metabolites. Different degrees of manifestation of the combined action of biologically active substances L. rhamnosus GG and S. boulardii with antibiotics were determined, which depended on the selected combinations, the method of influence on the microorganism, the individual sensitivity of the test-cultures, the activity of the test filtrates and the initial concentration of the producers used to obtain the products of vital activity of lactobacteria and saccharomyces. The presented complexes of structural components and metabolites of L. rhamnosus GG and S. boulardii, obtained without the use of traditional nutrient media, by increasing the bioavailability of pathogenic pathogens can reduce the required concentration of the antibiotic, continuing their use, and suspend the likelihood of pathogens developing resistance to microorganisms. This makes them promising candidates both for the development of "accompaniment-preparations" for antibiotics for the additional therapy of infectious diseases of different etiology, and for the creation of a new direction of antimicrobial agents with multifunctional capabilities. Synergistic activity of filtrates L. rhamnosus GG and S. boulardii and antibacterial preparations against Corynebacterium spp.

scholarly journals Effect of disintegrates and metabolites of Lactobacillus rhamnosus and Saccharomyces boulardii on biofilms of antibiotic resistant conditionally pathogenic and pathogenic bacteria

2019 ◽  
Vol 10 (1) ◽  
pp. 3-8 ◽  
Author(s):  
O. Y. Isayenko ◽  
O. V. Knysh ◽  
Y. M. Babych ◽  
T. N. Ryzhkova ◽  
G. I. Dyukareva
Keyword(s):  
Optical Density ◽  
Lactobacillus Rhamnosus ◽  
Saccharomyces Boulardii ◽  
Biologically Active Substances ◽  
Biologically Active ◽  
Gram Negative Bacteria ◽  
Antibiotic Resistant ◽  
Gram Negative ◽  
The Impact ◽  
Active Substances

The work presented here is the first to examine the impact of Lactobacillus rhamnosus GG ATCC 53103 and Saccharomyces boulardii metabolites obtained using the author`s method on the formation of biofilm forms of bacteria. The structural components of the probiotic microorganisms were obtained using the method of physical disintegration – low frequency ultrasound waves produced by a G3-109 generator. Metabolites were obtained by cultivating L. rhamnosus and S. boulardii in ultrasound disintegrates of lactobacteria and Saccharomycetes. The impact of biologically active substances on the formation of biofilm of Corynebacterium ulcerans tox+ 112, C. diphtheriae gravis tox+ 108, by antibiotic-resistant Pseudomonas aeruginosa PR, Klebsiella pneumoniae PR, Lelliottia amnigena (Enterobacter amnigenus) PR and P. aeruginosa AТСС 27853 reference strain was studied using the spectrophotometric method. For the first time, we proved that L. rhamnosus GG and S. boulardii metabolites and combinations of metabolites of Saccharomycetes and lactobacteria, obtained by cultivating primary producers in their disintegrates, damage preformed 24-hour biofilms of gram-positive and gram-negative bacteria. The representatives of Corynebacterium exhibited higher sensitivity to the filtrates of disintegrates and products of vital activity of lactobacteria and Saccharomycetes than gram-negative pathogens. High parameters of decrease in optical density of preformed biofilms of Corynebacterium and antibiotic-resistant gram-negative bacteria were observed under the influence of combination of L. rhamnosus GG and S. boulardii metabolites (by 1.3–2.6 times). However, the largest reduction of the optical density of the formed biofilm of all studied strains was observed under the influence of metabolites of lactobacteria (by 1.5–5.3 times). Biologically active substances of L. rhamnosus GG and S. boulardii obtained using the author’s method can be used as candidate preparations which could have a strong influence on the process of the formation of the biofilms and preformed biofilms, and also as a preparations of substitution/addition of therapeutic prescription.

scholarly journals Evaluation of anti-microbial activity of filtrates of Lactobacillus rhamnosus and Saccharomyces boulardii against antibiotic-resistant gram-negative bacteria

2019 ◽  
Vol 10 (2) ◽  
pp. 245-250 ◽  
Author(s):  
O. Y. Isayenko ◽  
O. V. Knysh ◽  
O. V. Kotsar ◽  
T. N. Ryzhkova ◽  
G. I. Dyukareva
Keyword(s):  
Microbial Activity ◽  
Lactobacillus Rhamnosus ◽  
Saccharomyces Boulardii ◽  
Biologically Active ◽  
Gram Negative Bacteria ◽  
Antibiotic Resistant ◽  
Gram Negative ◽  
The Impact ◽  
Active Substances ◽  
Test Cultures

The article presents the results of the first study on the influence of biologically active substances Lactobacillus rhamnosus GG ATCC 53103 and Saccharomyces boulardii, obtained according to the author`s method, on growth of gram-negative bacteria with broad medical resistance: Pseudomonas aeruginosa PR, Klebsiella pneumoniae PR, Lelliottia amnigena (Enterobacter amnigenus) PR using the spectrophotometric method. Disintegrates of L. rhamnosus GG and S. boulardii were obtained using low-frequency ultrasound processing of suspension of probiotic strains, and metabolites – through cultivation of lactobacteria and saccharomycetes in disintegrates of probiotic microorganisms. To samples of test-cultures with studied filtrates of disintegrates or metabolites we added growth medium and cultivated them (period of monitoring was 5- and 24-hours). Results of the studies were expressed as the percentage of inhibition of increment in polyresistant gram-negative bacteria under the impact of biologically active substances of probiotic microorganisms. Five-hour incubation of test-strains with the studied samples of lactobacteria led to inhibition of their growth properties by 85.6–96.7%. Growth of bacteria under the impact of substances of saccharomycetes was inhibted by 45.1–92.5%. Twenty-four hour exposure of the test-cultures in filtrates of L. rhamnosus GG and S. boulardii caused 100% inhibition of P. aeruginosa and L. amnigena polyresistant strains. Temporal interval of cultivation directly proportionally affected the extent of inhibition of growth of microorganisms: we determined direct correlation dependence within 0.789–0.991. Maximum inhibition of increment of the studied pathogens was observed under the influence of metabolites of lactobacteria, obtained by cultivating primary producers in their disintegrate. We determined a high level of anti-microbial activity of metabolites from L. rhamnosus GG and S. boulardii obtained by cultivation of probiotics in disintegrates against bacteria resistant to a broad range of preparations, which allows us to consider these substances as promising for development of anti-microbial preparations of a new generation against etiologically significant antibiotic-resistant gram-negative microorganisms.

scholarly journals Changes in biologically active substances of stone fruits under the influence of low temperatures

2021 ◽  
Vol 34 ◽  
pp. 06017
Author(s):  
Irina Sobol ◽  
Ludmila Rodionova ◽  
Ludmila Donchenko ◽  
Artem Stepovoy
Keyword(s):  
Low Temperatures ◽  
Beta Carotene ◽  
Biologically Active Substances ◽  
Biologically Active ◽  
Carotene Content ◽  
Plum Varieties ◽  
Physical And Chemical ◽  
Active Substances ◽  
Acid Reduction ◽  
Pectin Substances

Sufficient consumption of natural biologically active substances (BAS) – vitamins, dietary fiber, mineral compounds – reduces the risk of developing diseases associated with negative external factors. A large number of BAS are contained in the cherry plum fruits. Cherry plum is characterized by storage short term, during which quality changes are possible. Studies have been conducted on the low temperatures effect the change of BAS in cherry plum fruits. Studied objects were five cherry plum varieties grown in the Russian southern regions – Dinnaya, Zhemchuzhina, Obilnaya, Puteshestvennitsa, Neberdzhayskaya ranyaya. It was found that during storage, the physical and chemical parameters change slightly, the dry substances content decreases (within 1.3-3.2 %), sugars (5.5-7.0 %), the total acids content increases (2.8 3.3 %). The BAS content slight decrease during storage does not significantly affect the nutritional value of cherry plum fruits. The ascorbic acid reduction is 9.8-17.3 %, the anthocyanins content decreases on average from 16.9 to 19.7 %, the beta-carotene content decreases by 8.7-14.8 %, the reduction level of pectin substances is 15.75-22.2 %. Thus, the freezing method application allows to preserve valuable BAS in cherry plum fruits and use them in the future as a basis for the production of functional food products.

scholarly journals Post-Thaw Preservation of Anti-Microbial Lactobacillus Rhamnosus and Saccharomyces Boulardii Metabolite Complexes

2020 ◽  
Vol 30 (4) ◽  
pp. 343-358
Author(s):  
Olena Isayenko ◽  
Keyword(s):  
Antimicrobial Activity ◽  
Antibacterial Agents ◽  
New Products ◽  
Lactobacillus Rhamnosus ◽  
Antimicrobial Effect ◽  
Saccharomyces Boulardii ◽  
Lactobacillus Rhamnosus Gg ◽  
Resistance Increase ◽  
Significant Difference ◽  
Inhibition Zones

The paper demonstrates an antimicrobial effect of metabolite complexes of Lactobacillus rhamnosus GG and Saccharomyces boulardii, obtained by own method, after 6 months’ storage in a frozen state (−23 ± 1ºС) in respect of Staphylococcus aureus, Staphylococcus haemoliticus, Enterococcus faecalis, Corynebacterium xerosis with multidrug resistance. Increase in diameters of growth inhibition zones (by (3.0 ± 0.4)–(6.1 ± 0.3) mm) for all the investigated pathogens under the influence of metabolite complexes (freshly obtained and after storage) with azithromycin has been proven. No significant difference in antimicrobial activity of antibacterial agents with freshly obtained complexes and after storage at (−23 ± 1)°C was found. The expediency of using the chosen storage method to design the brand new products as well as development of ‘auxiliary drugs’ for antibiotics was confirmed.

scholarly journals Characteristics of functional ice cream produced with probiotic Saccharomyces boulardii in combination with Lactobacillus rhamnosus GG

LWT ◽  
2021 ◽  
pp. 112489
Author(s):  
Hamza Goktas ◽  
Hilal Dikmen ◽  
Hatice Bekiroglu ◽  
Nur Cebi ◽  
Enes Dertli ◽  
...  
Keyword(s):  
Lactobacillus Rhamnosus ◽  
Ice Cream ◽  
Saccharomyces Boulardii ◽  
Lactobacillus Rhamnosus Gg

Probiotics for Clostridium difficile–Associated Diarrhea: Focus on Lactobacillus rhamnosus GG and Saccharomyces boulardii

2007 ◽  
Vol 41 (7-8) ◽  
pp. 1212-1221 ◽  
Author(s):  
Marisel Segarra-Newnham
Keyword(s):  
Clostridium Difficile ◽  
Case Reports ◽  
Data Extraction ◽  
Meta Analysis ◽  
Lactobacillus Rhamnosus ◽  
Case Series ◽  
Saccharomyces Boulardii ◽  
First Episode ◽  
Lactobacillus Rhamnosus Gg ◽  
Clostridium Difficile Associated Diarrhea

Objective: To review the literature on the use of probiotics to treat or prevent recurrences of Clostridium difficile-associated diarrhea (CDAD) by replacing normal gastric flora. Data Sources: PubMed (1970–March 2007) was searched using the terms probiotics, Clostridium difficile, colitis, diarrhea, prevention, and treatment. Study Selection and Data Extraction: Case reports, case series, and clinical trials describing the use of probiotics in the treatment or prevention of recurrences of CDAD as primary outcome were included. Data Synthesis: A variety of controlled trials, case series, and case reports have evaluated probiotics to treat first or recurrent episodes of CDAD. In addition, a meta-analysis has been conducted to try to determine the rote of probiotics in CDAD. In general, most case series and case reports have shown favorable results with Lactobacillus rhamnosus GG or Saccharomyces boulardii. However, other reports have shown lack of benefit. The meta-analysis showed that these probiotics may be useful in treating or preventing recurrences of CDAD. Nonetheless, the heterogeneity of the studies makes definite conclusions difficult. In addition, several cases of bacteremia or fungemia associated with probiotic use have been reported, particularly in the last decade. Patients most commonly affected by these complications are immunosuppressed. Unfortunately, these are also the patients more likely to have severe CDAD or are at risk for recurrences. Conclusions: Additional experience with and study of probiotics are warranted due to numerous unanswered questions. Given the potential for complications in debilitated and immunosuppressed patients, the risks may outweigh benefits, and rational antibiotic use may be a better option to prevent a first episode or recurrence of CDAD.

scholarly journals Probiotics in the treatment of gastrointestinal diseases: effectiveness from the standpoint of evidence-based medicine

2020 ◽  
Vol 22 (8) ◽  
pp. 57-64
Author(s):  
Marina V. Leonova ◽  
Keyword(s):  
Helicobacter Pylori ◽  
Lactobacillus Rhamnosus ◽  
Gastrointestinal Diseases ◽  
Saccharomyces Boulardii ◽  
Evidence Based ◽  
Lactobacillus Rhamnosus Gg ◽  
Bifidobacterium Lactis ◽  
Clostridioides Difficile ◽  
H Pylori ◽  
Based Medicine

Пробиотики представляют клинически важные микроорганизмы, имеющие полезные свойства для кишечной микробиоты и способность влиять на заболеваемость желудочно-кишечного тракта (ЖКТ). Приведен научный обзор результатов большого числа метаанализов исследований (с 2004 по 2019 г.) по оценке эффективности применения пробиотиков при лечении острой диареи, антибиотикоассоциированной диареи, эрадикационной те-рапии инфекции Helicobacter pylori, при функциональном запоре. По данным 9 метаанализов (из них 2 Кокрейновских метаанализа), применение про-биотиков для лечения острой диареи у взрослых и детей позволяет достоверно сократить продолжительность диареи более чем на 1 сут и способ-ствовать ускорению излечения через 3–4 дня. Наиболее выраженный эффект пробиотиков при острой диарее отмечен у детей до 5 лет, в связи с чем пробиотики включены в Европейские рекомендации для лечения острого гастроэнтерита у детей. По данным 12 метаанализов (из них 3 Кокрейновских метаанализа) пробиотики показали значимую эффективность в предупреждении и лечении антибиотикоассоциированной диареи, снижая риск раз-вития диареи на 40% и более в разных популяциях пациентов (взрослые, пожилые, дети). В 2 Кокрейновских метаанализах показана эффективность пробиотиков для предупреждения диареи, вызванной инфекцией Clostridioides difficile, снижая риск на 60% и более. В 14 метаанализах установлена эффективность пробиотиков в дополнение к разным схемам эрадикационной терапии H. pylori в увеличении частоты эрадикации и снижении риска развития побочных эффектов антибиотиков на 40–50%, что получило значимость в клинических рекомендациях Маастрихт V (Maastricht V). В 10 ме-таанализах установлена эффективность пробиотиков по влиянию на кишечный транзит при функциональном запоре, кроме того, пробиотики спо-собствовали уменьшению запоров. Наибольшую клиническую значимость для лечения и профилактики заболеваний ЖКТ получили два вида про-биотиков – Lactobacillus и Saccharomyces, а именно штаммы Lactobacillus rhamnosus GG и Saccharomyces boulardii, для лечения функциональных запоров – пробиотики рода Bifidobacterium lactis. Кроме того, установлен дозозависимый эффект пробиотиков, и наибольший эффект проявляется при использовании высоких дозировок – не менее 109–1010 КОЕ/сут. Доказательность применения пробиотиков в лечении заболеваний ЖКТ у взрослых и детей также определена в рекомендациях Всемирной гастроэнтерологической организации 2017 г. Ключевые слова: пробиотики, острая диарея, антибиотикоассоциированная диарея, инфекция Clostridioides difficile, инфекция Helicobacter pylori, функциональный запор. Для цитирования: Леонова М.В. Пробиотики в лечении заболеваний желудочно-кишечного тракта: эффективность с позиции доказательной медицины. Consilium Medicum. 2020; 22 (8): 57–64. DOI: 10.26442/20751753.2020.8.200195

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