scholarly journals Anti-Shigellosis Activity of Cola anomala Water/Ethanol Pods Extract on Shigella flexneri-Induced Diarrhea in Rats

2019 ◽  
Vol 2019 ◽  
pp. 1-9 ◽  
Author(s):  
Henri Wambe ◽  
Paul Aimé Noubissi ◽  
Michel Archange Fokam Tagne ◽  
Angèle Foyet Fondjo ◽  
Gaëtan Olivier Fankem ◽  
...  
Keyword(s):  
Minimum Inhibitory Concentration ◽  
Inhibitory Concentration ◽  
Minimum Bactericidal Concentration ◽  
Shigella Flexneri ◽  
White Blood Cells ◽  
Diffusion Method ◽  
Albino Rats ◽  
Disk Diffusion Method

This study was undertaken to evaluate the activities of water/ethanol Cola anomala pods extract. In vitro antimicrobial susceptibility was determined by the disk diffusion method; the minimum inhibitory concentration and minimum bactericidal concentration were determined by agar dilution technique. In vivo, shigellosis was induced in healthy Wistar albino rats by oral administration of Shigella flexneri inoculum, 12 × 108 CFU/mL. At the onset of diarrhea, infected and normal control animals were subdivided into various groups treated with distilled water, with water/ethanol Cola anomala pods extract at 25, 50, or 100 mg/kg, or with ciprofloxacin, 2.5 mg/kg. After one-week treatment, rats were sacrificed, and blood and colon were collected. Blood was used for blood cell count. A portion of the colon served for histological studies while homogenate from the remaining part was centrifuged and the supernatant was collected for the determination of NO, PGE2, IL-1β, and TNF-α levels. In vitro, water/ethanol Cola anomala pods extract showed to be bactericidal, with a minimum inhibitory concentration of 2.0 mg/mL and a minimum bactericidal concentration of 3.0 mg/mL. In diarrheic rats, the extract significantly (P<0.01) increased the white blood cells and significantly (P<0.01) decreased stool Shigella density from the first to the seventh day of treatment. It partially restored the structure of eroded intestine epithelium and prevented weight loss; the dose dependently and significantly (P<0.001) decreased NO, IL-1β, and TNF-α production in the colon and was found to have no significant effect on PGE2 production. These results support the use of this plant in traditional medicine in the treatment of gastrointestinal ailments.

scholarly journals ANTIMICROBIAL ACTIVITY OF PINEAPPLE (ANANAS COMOSUS L. MERR) EXTRACT AGAINST MULTIDRUG-RESISTANT OF PSEUDOMONAS AERUGINOSA: AN IN VITRO STUDY

2017 ◽  
Vol 6 (5) ◽  
pp. 118 ◽  
Author(s):  
Rahmat Sayyid Zharfan ◽  
Priyo Budi Purwono ◽  
Arifa Mustika
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Minimum Inhibitory Concentration ◽  
Inhibitory Concentration ◽  
Minimum Bactericidal Concentration ◽  
Agar Plate ◽  
Multidrug Resistant ◽  
Ananas Comosus ◽  
Tract Infections

Pseudomonas aeruginosa is the main cause of nosocomial infection which is responsible for 10% of hospital-acquired infection. Pseudomonas aeruginosa tends to mutate and displays potential for development of antibiotic resistance. Approximately, 10% of global bacterial isolates are found as Multidrug-resistant Pseudomonas aeruginosa. Pseudomonas aeruginosa have a quite tremendous severity index, especially on pneumonia and urinary tract infections, even sepsis, which 50% mortality rate. Pineapple (Ananas comosus L. Merr) has antimicrobial properties. The active antimicrobial compounds in Ananas comosus L. Merr include saponin and bromelain. This research aims to find the potency of antimicrobial effect of pineapple (Ananas comosus L. Merr) extract towards Multidrug-resistant Pseudomonas aeruginosa. Multidrug-resistant Pseudomonas aeruginosa specimen is obtained from patient’s pus in orthopaedic department, Dr Soetomo Public Hospital, Surabaya. Multidrug-resistant Pseudomonas aeruginosa specimen is resistant to all antibiotic agents except cefoperazone-sulbactam. This research is conducted by measuring the Minimum Inhibitory Concentration (MIC) through dilution test with Mueller-Hinton broth medium. Pineapple extract (Ananas comosus L. Merr.) is dissolved in aquadest, then poured into test tube at varying concentrations (6 g/ml; 3 g/ml; 1.5 g/ml; 0.75 g/ml, 0.375 g/ml; and 0.1875 g/ml). After 24 hours’ incubation, samples are plated onto nutrient agar plate, to determine the Minimum Bactericidal Concentration (MBC). The extract of pineapple (Ananas comosus L. Merr) has antimicrobial activities against Multidrug-resistant Pseudomonas aeruginosa. Minimum Inhibitory Concentration (MIC) could not be determined, because turbidity changes were not seen. The Minimum Bactericidal Concentration (MBC) of pineapple extract (Ananas comosus L. Merr) to Multidrug-resistant Pseudomonas aeruginosa is 0.75 g/ml. Further study of in vivo is needed.

Efek Antibakteri Ekstrak Aquades Buah Kurma (Phoenix dactylifera L.) Varietas Ajwa terhadap Staphylococcus aureus Secara In Vitro

2020 ◽  
Vol 2 (2) ◽  
Author(s):  
Lu'lu Ulul Albab ◽  
Usep Abdullah Husin ◽  
Buti Azfiani Azhali ◽  
Titik Respati ◽  
Ratna Dewi Indi Astuti
Keyword(s):  
Staphylococcus Aureus ◽  
Minimum Inhibitory Concentration ◽  
Inhibitory Concentration ◽  
Minimum Bactericidal Concentration ◽  
Antibacterial Properties ◽  
Phoenix Dactylifera ◽  
Diffusion Method ◽  
Zone Of Inhibition ◽  
Phoenix Dactylifera L

Penemuan antimikrob menjadi hal yang sangat penting dalam pengobatan dan kemajuan medis. Tantangan dalam pengobatan menggunakan antibiotik adalah resistensi bakteri terhadap antibiotik yang digunakan. Salah satu bakteri yang mengalami resistensi adalah Staphylococcus aureus. Oleh karena itu, diteliti alternatif pengobatan dengan menggunakan tumbuhan yang berpotensi memiliki kemampuan antibakteri. Buah kurma varietas Ajwa telah diteliti memiliki beberapa senyawa aktif yang berpotensi sebagai antibakteri dan antioksidan. Kurma Ajwa juga telah disebutkan di dalam Al-Quran dan Al-Hadits. Tujuan penelitian ini adalah mengetahui efek antibakteri ekstrak akuades buah kurma Ajwa dengan melihat luas zona hambat serta konsentrasi hambat minimum (KHM) dan konsentrasi bunuh minimum (KBM) pada Staphylococcus aureus. Penelitian ini menggunakan metode ekperimental secara in vitro dan bersifat deskriptif observasional dengan pendekatan kuantitatif. Metode yang digunakan adalah metode difusi dengan menggunakan sumuran dan metode dilusi padat. Penelitian ini dilakukan di Laboratorium Terpadu Mikrobiologi Poltekkes Bandung. Didapatkan rerata hasil zona hambat adalah 5,87 mm yang termasuk kategori sedang, KHM pada konsentrasi 50%, dan KBM belum dapat ditemukan. Berdasar atas uji statistik, hasil penelitian uji difusi menunjukkan bahwa ekstrak akuades buah kurma (Phoenix dactylifera L.) varietas Ajwa berpengaruh menghambat pertumbuhan bakteri Staphylococcus aureus. ANTIBACTERIAL EFFECT OF EXTRACT AQUADES AJWA DATE (PHOENIX DACTYLIFERA L.) AGAINST STAPHYLOCOCCUS AUREUS IN VITROThe discovery of antimicrobials has been significantly important for current treatments and the future developments in the medical field. One of the challenges faced in the usage of antibiotics is the resistance imposed by the bacteria towards the antibiotics itself. An example of such bacteria that experiences thisresistance is Staphylococcus aureus. As a result, studies regarding alternatives of treatments, specifically those utilizing various plants that may potentially have antibacterial properties are conducted. Previous studies have already shown that date palms of the Ajwa variety, known as Phoenix dactylifera, contains several active compounds that are potential antioxidants and exhibit antibacterial properties. The Ajwa date palm has also been mentioned in several scriptures of the Al-Quran and Al-Hadits. The objective of this study was to understand the antibacterial properties of aquadest-extracted Phoenix dactylifera through the measurement of the area of the zone of inhibition, the minimum inhibitory concentration (MIC), and the minimum bactericidal concentration (MBC) of Staphylococcus aureus. This study involves the use of an experimental method, known as in vitro, and is also a descriptive observational study with a quantitative approach. The methodology used consists of the well diffusion method and the solid dilution method. This study was conducted at Laboratorium Terpadu Mikrobiologi Poltekkes Bandung. The results of this study show an average zone of inhibition of 5.87 mm which is categorized as medium, a minimum inhibitory concentration of 50%, and a minimum bactericidal concentration that is yet to be found. Based on statistical tests, the result of the diffusion method shows that the aquadest-extracted Phoenix dactylifera is influential in inhibiting the growth of the Staphylococcus aureus bacteria.

The in vitro efficacy of neutral electrolysed water and povidone-iodine against CRS-associated biofilms

2021 ◽  
Vol 0 (0) ◽  
pp. 0-0
Author(s):  
C.A. Lux ◽  
K. Biswas ◽  
M.W. Taylor ◽  
R.G. Douglas
Keyword(s):  
Inhibitory Concentration ◽  
Povidone Iodine ◽  
Minimum Bactericidal Concentration ◽  
Treatment Options ◽  
Antimicrobial Treatment ◽  
Biofilm Reactor ◽  
Bacterial Biofilms ◽  
Antibiofilm Activity

Background: Despite best medical and surgical practice, some cases of chronic rhinosinusitis (CRS) can remain recalcitrant. Bacterial biofilms have been associated with the recalcitrance of sinonasal inflammation. Biofilms are highly resistant to commonly prescribed antibiotics. Accordingly, more effective antimicrobial treatment options are needed to treat refractory CRS. The aim of this study was to determine the in vitro efficacy of neutral electrolysed water (NEW) and povidone-iodine (PVI) against CRS-associated Staphylococcus aureus biofilms. Methods: Mature S. aureus biofilms were grown in a Centre for Disease Control (CDC) biofilm reactor. The antimicrobial activity of NEW, PVI and doxycycline was determined for both planktonic and biofilm cultures of a clinical S. aureus isolate using minimum inhibitory concentration (MIC), minimum bactericidal concentration (MBC) and minimum biofilm eradication concentration (MBEC) assays. Results: MICs and MBCs were determined for all antimicrobials. MBC values were similar to MICs for both antiseptics, but doxycycline MBCs were significantly higher than the associated MICs. Biofilms were highly resistant to NEW and doxycycline. The MBEC for doxycycline was between 500 and 1000 µg/mL. NEW was ineffective against biofilms and no MBEC could be determined. In contrast, a concentration of 10% of the commercial PVI solution (10 mg/mL PVI) led to effective eradication of mature biofilms. Conclusion: In this study, only PVI showed promising antibiofilm activity at physiological concentrations. The in vivo efficacy of PVI warrants further investigation of its potential as a treatment for recalcitrant CRS.

scholarly journals THE EFFECT OF PROPOLIS EXTRACT AND PROPOLIS CANDIES ON THE GROWTH OF AGGREGATIBACTER ACTINOMYCETEMCOMITANS ATCC 43718

2017 ◽  
Vol 10 (17) ◽  
pp. 26
Author(s):  
Khodijah Khodijah ◽  
Ratna Farida ◽  
Nurtami Soedarsono
Keyword(s):  
Minimum Inhibitory Concentration ◽  
Inhibitory Concentration ◽  
Minimum Bactericidal Concentration ◽  
Aggregatibacter Actinomycetemcomitans ◽  
Spectrophotometric Analysis ◽  
Propolis Extract ◽  
Post Exposure ◽  
Colony Forming Units

Objective: This experiment aimed to analyze the effect of propolis extract and propolis containing candies on the growth of Aggregatibacter actinomycetemcomitans using spectrophotometric analysis and colony-forming units (CFU) counts.Methods: After A. actinomycetemcomitans were exposed to propolis extract and candies, the minimum inhibitory concentration (MIC) and the minimum bactericidal concentration (MBC) were determined with spectrophotometry and post-exposure colony counting.Results: The MIC of propolis extract against A. actinomycetemcomitans was determined to be 10%, and the MBC was 20%. A decrease in the total CFU count of A. actinomycetemcomitans was observed after propolis extract and candy exposure.Conclusions: Propolis extract and propolis candies were effective in inhibiting the growth of A. actinomycetemcomitans ATCC 43718 in vitro.

scholarly journals Effect of Ligilactobacillus salivarius and Other Natural Components against Anaerobic Periodontal Bacteria

Molecules ◽  
2020 ◽  
Vol 25 (19) ◽  
pp. 4519
Author(s):  
Marzena Kucia ◽  
Ewa Wietrak ◽  
Mateusz Szymczak ◽  
Paweł Kowalczyk
Keyword(s):  
Alveolar Bone ◽  
Anaerobic Bacteria ◽  
Drug Susceptibility ◽  
Diffusion Method ◽  
In Vitro Tests ◽  
Growth Media ◽  
Oral Microbiota ◽  
Disk Diffusion Method

In this present study, the bacteriostatic effect of Salistat SGL03 and the Lactobacillus salivarius strain contained in it was investigated in adults in in vivo and in vitro tests on selected red complex bacteria living in the subgingival plaque, inducing a disease called periodontitis, i.e., chronic periodontitis. Untreated periodontitis can lead to the destruction of the gums, root cementum, periodontium, and alveolar bone. Anaerobic bacteria, called periopathogens or periodontopathogens, play a key role in the etiopathogenesis of periodontitis. The most important periopathogens of the oral microbiota are: Porphyromonas gingivalis, Tannerella forsythia, Treponema denticola and others. Our hypothesis was verified by taking swabs of scrapings from the surface of the teeth of female hygienists (volunteers) on full and selective growth media for L. salivarius. The sizes of the zones of growth inhibition of periopathogens on the media were measured before (in vitro) and after consumption (in vivo) of Salistat SGL03, based on the disk diffusion method, which is one of the methods of testing antibiotic resistance and drug susceptibility of pathogenic microorganisms. Additionally, each of the periopathogens analyzed by the reduction inoculation method, was treated with L. salivarius contained in the SGL03 preparation and incubated together in Petri dishes. The bacteriostatic activity of SGL03 preparation in selected periopathogens was also analyzed using the minimum inhibition concentration (MIC) and minimum bactericidal concentration (MBC) tests. The obtained results suggest the possibility of using the Salistat SGL03 dietary supplement in the prophylaxis and support of the treatment of periodontitis—already treated as a civilization disease.

scholarly journals Antibacterial and Toxicity Evaluation of Eastern Medicine Formulation Eczegone for the Management of Eczema

Dose-Response ◽  
2020 ◽  
Vol 18 (3) ◽  
pp. 155932582095679
Author(s):  
Muhammad Amjad Chishti ◽  
Ejaz Mohi-Ud-Din ◽  
Shahbaz Ahmad Zakki ◽  
Muhammad Rahil Aslam ◽  
Sheraz Siddiqui ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Safety Evaluation ◽  
Diffusion Method ◽  
In Vitro Toxicity ◽  
Klebsiella Pneumonia ◽  
Lawsonia Inermis ◽  
Disk Diffusion Method ◽  
Skin Keratinocytes

The present study was conducted to evaluate the antibacterial activity, in vitro and in vivo cytotoxicity, cell viability and safety of Eastern Medicine coded medicinal formulation Eczegone comprising extracts of Azadirachta indica (Azin) , Fumaria indica (Fuin) , Sphaeranthus indicus (Spin) and Lawsonia inermis (Lain). This work also evaluated antibacterial activity of Eczegone formulation having above mentioned plants ethanolic extracts against different bacteria’s by disk diffusion method. In vitro toxicity of Eczegone formulation was investigated by using human skin keratinocytes HaCaT cell line, crystal violet stained cells, and methyl tetrazolium cytotoxicity (MTT) assay. In vivo acute oral and dermal cytotoxicity was determined by using Swiss albino mice and albino rabbits, respectively. The Eczegone formulation showed antibacterial activity against 3 gram negative bacteria including Escherichia coli, Klebsiella pneumonia, Proteus vulgaris and a gram positive Staphylococcus aureus. We didn’t observe any toxic effect of Eczegone formulation on the skin keratinocytes. Furthermore, the Ezcegone formulation was non-irritant according to draize score (OECD TG404, 2002). After rigorous safety evaluation by in vitro and in vivo acute oral and dermal toxicity analysis, we concluded that Eczegone formualtion possessses antibacterial effects and is safe, non-toxic, non-irritant, and the drug would be subjected for further biochemical and clinical studies.

scholarly journals Antibacterial and Hemolytic Activity of Crotalus triseriatus and Crotalus ravus Venom

Animals ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 281
Author(s):  
Adrian Zaragoza-Bastida ◽  
Saudy Consepcion Flores-Aguilar ◽  
Liliana Mireya Aguilar-Castro ◽  
Ana Lizet Morales-Ubaldo ◽  
Benjamín Valladares-Carranza ◽  
...  
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Antibacterial Activity ◽  
Minimum Inhibitory Concentration ◽  
Hemolytic Activity ◽  
Inhibitory Concentration ◽  
Minimum Bactericidal Concentration ◽  
The Other ◽  
Medical Treatments ◽  
First Time

Rattlesnakes have venoms with a complex toxin mixture comprised of polypeptides and proteins. Previous studies have shown that some of these polypeptides are of high value for the development of new medical treatments. The aim of the present study is to evaluate, in vitro, the antibacterial and hemolytic activity of Crotalus triseriatus and Crotalus ravus venoms. A direct field search was conducted to obtain Crotalus triseriatus and Crotalus ravus venom samples. These were evaluated to determine their antibacterial activity against Escherichia coli, Staphylococcus aureus and Pseudomonas aeruginosa through the techniques of Minimum Inhibitory Concentration (MIC) and Minimum Bactericidal Concentration (MBC). Hemolytic activity was also determined. Antibacterial activity was determined for treatments (Crotalus triseriatus 2) CT2 and (Crotalus ravus 3) CR3, obtaining a Minimum Inhibitory Concentration of 50 µg/mL and a Minimum Bactericidal Concentration of 100 µg/mL against Pseudomonas aeruginosa. CT1 (Crotalus triseriatus 1), CT2, and CR3 presented hemolytic activity; on the other hand, Crotalus ravus 4 (CR4) did not show hemolytic activity. The results of the present study indicate for the first time that Crotalus triseriatus and Crotalus ravus venoms contain some bioactive compounds with bactericidal activity against Pseudomonas aeruginosa which could be used as alternative treatment in diseases caused by this pathogenic bacterium.

scholarly journals In VitroAntimicrobial Activity of Essential Oil ofThymus schimperi,Matricaria chamomilla,Eucalyptus globulus, andRosmarinus officinalis

2016 ◽  
Vol 2016 ◽  
pp. 1-8 ◽  
Author(s):  
Awol Mekonnen ◽  
Berhanu Yitayew ◽  
Alemnesh Tesema ◽  
Solomon Taddese
Keyword(s):  
Antimicrobial Activity ◽  
Minimum Inhibitory Concentration ◽  
Essential Oil ◽  
Essential Oils ◽  
Inhibitory Concentration ◽  
Antimicrobial Activities ◽  
Diffusion Method ◽  
Drug Preparation ◽  
Bacteria And Fungi

In this study, thein vitroantimicrobial activities of four plant essential oils (T. schimperi,E. globulus,R. officinalis, andM. Chamomilla) were evaluated against bacteria and fungi. The studies were carried out using agar diffusion method for screening the most effective essential oils and agar dilution to determine minimum inhibitory concentration of the essential oils. Results of this study revealed that essential oils ofT. schimperi,E. globulus, andR. officinaliswere active against bacteria and some fungi. The antimicrobial effect ofM. chamomillawas found to be weaker and did not show any antimicrobial activity. The minimum inhibitory concentration values ofT. schimperiwere<15.75 mg/mL for most of the bacteria and fungi used in this study. The minimum inhibitory concentration values of the other essential oils were in the range of 15.75–36.33 mg/mL against tested bacteria. This study highlighted the antimicrobial activity of the essential oil ofE. globulus,M. chamomilla,T. Schimperi, andR. officinalis. The results indicated thatT. schimperihave shown strong antimicrobial activity which could be potential candidates for preparation of antimicrobial drug preparation.

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

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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