scholarly journals Ethanolic Extract of Ground Vernonia Amygdalina Stem Exhibited Potent Antibacterial Activity and Improved Hematological Bio-Functional Parameters in Normal and Monosodium Glutamate-Intoxicated Rats

2021 ◽  
Vol 25 (3) ◽  
pp. 311-317
Author(s):  
A.C.C. Egbuonu ◽  
R.P. Amadi
Keyword(s):  
Antibacterial Activity ◽  
Bacterial Pathogens ◽  
Monosodium Glutamate ◽  
Ethanolic Extract ◽  
Antibacterial Drug ◽  
Related Effect ◽  
Vernonia Amygdalina ◽  
Therapeutic Benefits

Herein, Vernonia amygdalina stem ethanolic extract, VASEE, was elucidated for its antibacterial activity in vitro by disk-diffusion technique and, in vivo effect on some hematological parameters of normal and monosodium glutamate, MSG-intoxicated rats. For in vivo study, 20 male albino rats assigned into five groups (A, B, C, D, and E) were, for 14 days, respectively administered MSG (8000 mg/kg body weight, bw), VASEE (200 mg/kg bw), Control (Vital feed and tap water), MSG (8000 mg/kg bw + VASEE, 200 mg/kg bw), and MSG (8000 mg/kg bw + VASEE, 400 mg/kg bw). In vitro, the VASEE-related activity against the tested bacterial pathogens was significant (P < 0.05), dose dependent and comparable to that by the standard antibacterial drug, Ciprofloxacin. In vivo, VASEE compared to control and MSG groups improved (P < 0.05) and, notably at the highest tested dose modulated the monosodium glutamate intoxication-related effect on, the studied hematology of rats. Thus, VASEE exhibited potent activity against the tested bacterial pathogens, improved, and potentially modulated MSG-intoxication-related effect on, the rats’ hematological functions. The study underscored a promising antibacterial application of the extract of hitherto wasted bitter leaf stem that could offer novel therapeutic benefits on the hematology of especially MSG-intoxicated rats, warranting further studies. Keywords: Hematology, intoxication, bitter leaf stem, packed cell volume, Red blood cell

scholarly journals In vitro and in vivo, antibacterial effect of lactobacillus and ethanolic extract of sage Salvia officinalis on enteropathogenic E.coli (EPEC)

2012 ◽  
Vol 6 (2) ◽  
pp. 50-56
Author(s):  
Amina N. AlThawani ◽  
Rasha abdul-Hussein Mahood ◽  
Hazim I. Abdul-Barrey
Keyword(s):  
Antibacterial Activity ◽  
Antibacterial Effect ◽  
Ethanolic Extract ◽  
Salvia Officinalis ◽  
Diffusion Method ◽  
High Concentration ◽  
Liver And Kidney ◽  
Cell Free Filtrate

he antibacterial effect of Lactobacillus cell-free filtrate and ethanolic extract of sage Salvia officinalis on enteropathogenic E.coli (EPEC) were investigated in vitro and in vivo. In vitro, antibacterial activity of Lactobacillus and ethanolic extract of sage were determined by using well diffusion method. The results of ethanolic extract of sage showed moderate antibacterial activity even with high concentration of extract 20mg/ml with maximum inhibition zone 18mm. while, of Lactobacillus cell-free filtrate presented high antibacterial activity against E.coli (24mm) in vivo, thirty two albino male mice(age 8-10 weeks, weight ranged 23-27 gram) were used in this experiment. The animals were divided into four equal groups, include positive and negative controls. Histological analysis of intestine, liver and kidney showed that the mice infected with EPEC induce attaching and effacing (A/E) lesions and loss of microvillus actins rootlets as well as microvillus fragmentation and no significant changes in liver and kidney tissues of mice infected with EPEC. Normal microvilli and mucosal morphology observed in mice infected and treated with Lactobacillus and ethanolic extract of sage.

scholarly journals IN VITRO ANTIBACTERIAL ACTIVITY OF ETHANOLIC EXTRACT OF SEEDPOD AND QUERCETIN OF NELUMBO NUCIFERA GAERTN

2019 ◽  
Vol 12 (1) ◽  
pp. 164
Author(s):  
Ruvanthika Pn ◽  
Manikandan S
Keyword(s):  
Antibacterial Activity ◽  
Ethanolic Extract ◽  
Antibacterial Activities ◽  
Nelumbo Nucifera ◽  
Diffusion Method ◽  
Dependent Manner ◽  
E Coli ◽  
In Vitro Antibacterial Activity

Objective: The objective of the study was to evaluate whether ethanolic extracts of Nelumbo nucifera (EENN) seedpod and quercetin (active component of NN) possess antibacterial proprieties against Gram (-) bacteria such as Escherichia coli and Pseudomonas aeruginosa and Gram (+) bacteria such as Staphylococcus aureus. Methods: Antibacterial activities of EENN seedpod and quercetin were investigated using disc diffusion method, minimum inhibitory concentration against E. coli and P. aeruginosa and Gram (+) bacteria such as S. aureus. Results: The antibacterial activity of both EENN seedpod and quercetin was found to be increased in dose-dependent manner. The maximum zone of inhibition was exhibited by both EENN seedpod and quercetin against E. coli (14 mm and 15 mm) and P. aeruginosa (13 mm and 15 mm). Gram-negative bacteria were more susceptible to the EENN seedpod extract and quercetin than Gram-positive bacteria.Conclusion: The results of the present study suggested that the effect of EENN seedpod and quercetin against the tested bacteria in vitro may contribute to the in vivo activities of the EENN seedpod and quercetin.

scholarly journals Comparison of Treatment Effects of Different Iron Chelators in Experimental Models of Sepsis

Life ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 57
Author(s):  
Christian Lehmann ◽  
Maral Aali ◽  
Juan Zhou ◽  
Bruce Holbein
Keyword(s):  
Bacterial Pathogens ◽  
Normal Component ◽  
Abdominal Sepsis ◽  
Experimental Models ◽  
Water Soluble ◽  
Iron Chelators ◽  
Therapeutic Benefits ◽  
Anti Inflammatory

Growing evidence indicates that dysregulated iron metabolism with altered and excess iron availability in some body compartments plays a significant role in the course of infection and sepsis in humans. Given that all bacterial pathogens require iron for growth, that iron withdrawal is a normal component of innate host defenses and that bacterial pathogens have acquired increasing levels of antibiotic resistance, targeting infection and sepsis through use of appropriate iron chelators has potential to provide new therapeutics. We have directly compared the effects of three Food and Drug Administration (FDA)-approved chelators (deferoxamine—DFO; deferiprone—DFP; and deferasirox—DFX), as were developed for treating hematological iron overload conditions, to DIBI, a novel purpose-designed, anti-infective and anti-inflammatory water-soluble hydroxypyridinone containing iron-selective copolymers. Two murine sepsis models, endotoxemia and polymicrobial abdominal sepsis, were utilized to help differentiate anti-inflammatory versus anti-infective activities of the chelators. Leukocyte adhesion, as measured by intravital microscopy, was observed in both models, with DIBI providing the most effective reduction and DFX the poorest. Inflammation in the abdominal sepsis model, assessed by cytokine measurements, indicated exacerbation by DFX and DFO for plasma Interleukin (IL)-6 and reductions to near-control levels for DIBI and DFP. Peritoneal infection burden was reduced 10-fold by DIBI while DFX and DFP provided no reductions. Overall, the results, together with those from other studies, revealed serious limitations for each of the three hematological chelators, i.e., as potentially repurposed for treating infection/sepsis. In contrast, DIBI provided therapeutic benefits, consistent with various in vitro and in vivo results from other studies, supporting the potential for its use in treating sepsis.

scholarly journals In Vitro Antituberculosis Activities of ACH-702, a Novel Isothiazoloquinolone, against Quinolone-Susceptible and Quinolone-Resistant Isolates

2010 ◽  
Vol 54 (8) ◽  
pp. 3478-3480 ◽  
Author(s):  
Michael J. Pucci ◽  
Maria Ackerman ◽  
Jane A. Thanassi ◽  
Carolyn M. Shoen ◽  
Michael H. Cynamon
Keyword(s):  
Staphylococcus Aureus ◽  
Antibacterial Activity ◽  
Mycobacterium Tuberculosis ◽  
Inhibitory Activity ◽  
Bacterial Pathogens ◽  
Biochemical Assays

ABSTRACT ACH-702 is a new isothiazoloquinolone with potent in vitro and in vivo activities against important bacterial pathogens, including Staphylococcus aureus. In this study, ACH-702 was found to have promising in vitro antibacterial activity against Mycobacterium tuberculosis, with MICs of ≤1 μg/ml, comparable to that of the fluoroquinolone moxifloxacin for quinolone-susceptible isolates but superior to that for quinolone-resistant isolates. Biochemical assays involving M. tuberculosis gyrase enzymes indicated that ACH-702 had significantly improved inhibitory activity compared with fluoroquinolones.

scholarly journals ANTI-PSEUDOMONAS AERUGINOSA DRUG

2018 ◽  
Vol 25 (10) ◽  
pp. 1574-1580
Author(s):  
Yasir Mehmood ◽  
Muhammad Imran Ashraf ◽  
Shazana Rana ◽  
Humayun Riaz ◽  
Syed Atif Raza ◽  
...  
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Antibacterial Activity ◽  
Synergistic Effect ◽  
Ethanolic Extract ◽  
Diffusion Method ◽  
Bark Extract ◽  
In Vitro Susceptibility ◽  
Inner Bark

Objectives: In this research we assess in-vitro susceptibility of Pseudomonasaeruginosa (P. aeruginosa) using the ethanolic extract of medicinal plant Tabebuia impetiginosa(dried inner bark). To evaluate the synergistic effect of ethanolic extract of Tabebuia impetiginosacombine with ciprofloxacin In-vitro anti-Pseudomonas aeruginosa activities of the extracts andciprofloxacin were confirmed, and synergism was verified for this combine extracts. StudyDesign: Experimental study. Period: October 2016 to February 2017. Place of Experiment:Rashid Latif Medical College, Lahore. Method: Diffusion method tests are mostly qualitativemethods that are used to identify the antimicrobial activity, resistance and synergistic effect. Thefresh plants inner bark was grinded and soaked in 95% ethanol for extraction. The antibacterialsensitivity of this compound against P. aeruginosa was assessed using the diffusion method.About 1000mg of grinded menstruum was added in 800ml of petroleum ether in a conicalflask and adjust in rotary shaker at 100 rpm for 12 hours and then the final extract was filteredwith 0.45mμ filter membrane and centrifuged at 2000rpm for 15 minutes. The final extract wasredissolved in ciprofloxacin solution (10 for bioassay analysis. Results: We concludedthat the fresh ethanolic extract of Tabebuia impetiginosa with ciprofloxacin has high antibacterialpotency against P. aeruginosa which is prominent then a single. However this was not pureextract and if it is refined then it might gives significant antibacterial activity at low concentration.There is still need to test Tabebuia impetiginosa extract for antibacterial activity and to checksynergistic effect with other drugs in-vivo against Pseudomonas aeruginosa. Extract presentedthe highest synergism rate with antimicrobial drug. Conclusion: In-vitro study showed Tabebuiaimpetiginosa fresh inner bark extract with ciprofloxacin dilution have significant antibacterialactivity against Pseudomonas aeruginosa with P.value <0.001. Isolates were susceptible tothis combine solution with mean zone diameter of 16.15 ± 0.95 mm and no regrowth wasnoticed. In the present research the synergistic effect of ciprofloxacin antibiotic with Tabebuiaimpetiginosa ethanolic extract were observe against Pseudomonas aeruginosa bacteria.

COMPARATIVE IN VITRO ANTIBACTERIAL ACTIVITY OF ETHANOLIC EXTRACT OF PLUMBAGO ZEYLENICA

INDIAN DRUGS ◽  
2013 ◽  
Vol 50 (04) ◽  
pp. 53-55
Author(s):  
G.P Vadnere ◽  
◽  
A.R. Pathan ◽  
B.U Kulkarni ◽  
A.K. Singhai
Keyword(s):  
Antibacterial Activity ◽  
Bacterial Pathogens ◽  
Bacterial Pathogen ◽  
Ethanolic Extract ◽  
Salmonella Typhi ◽  
Gastrointestinal Disorders ◽  
Moderate Activity ◽  
White Variety ◽  
In Vitro Antibacterial Activity

Ethanolic extract of leaf, flower and root of Plumbago zeylenica L. (white variety) traditionally used in the treatment of gastrointestinal disorders were screened for antibacterial activity against bacterial pathogens Staphyllococcus aureus, Escerchia coli, Klebsiella pneumoniae, Enterobacter aurugens, Proteus vulgaris, Shigella sonnei, Salmonella typhi which are known to cause different type of gastrointestinal disorders. The results showed that leaf and root extracts exhibited strong antibacterial action at concentration of 2-8 mg/ mL of the bacterial pathogen tested. However, powdered flower extract showed moderate activity. Thus the present data reveals that leaves and flowers are equally potential for the treatment of bacterial pathogens, which causes intestinal catarrh, indigestion, and colic intestinal abscesses.

scholarly journals IN VITRO ANTIBACTERIAL ACTIVITY OF ETHANOLIC EXTRACT OF SEEDPOD AND QUERCETIN OF NELUMBO NUCIFERA GAERTN

2019 ◽  
Vol 12 (1) ◽  
pp. 164
Author(s):  
Ruvanthika Pn ◽  
Manikandan S
Keyword(s):  
Antibacterial Activity ◽  
Ethanolic Extract ◽  
Antibacterial Activities ◽  
Nelumbo Nucifera ◽  
Diffusion Method ◽  
Dependent Manner ◽  
E Coli ◽  
In Vitro Antibacterial Activity

Objective: The objective of the study was to evaluate whether ethanolic extracts of Nelumbo nucifera (EENN) seedpod and quercetin (active component of NN) possess antibacterial proprieties against Gram (-) bacteria such as Escherichia coli and Pseudomonas aeruginosa and Gram (+) bacteria such as Staphylococcus aureus. Methods: Antibacterial activities of EENN seedpod and quercetin were investigated using disc diffusion method, minimum inhibitory concentration against E. coli and P. aeruginosa and Gram (+) bacteria such as S. aureus. Results: The antibacterial activity of both EENN seedpod and quercetin was found to be increased in dose-dependent manner. The maximum zone of inhibition was exhibited by both EENN seedpod and quercetin against E. coli (14 mm and 15 mm) and P. aeruginosa (13 mm and 15 mm). Gram-negative bacteria were more susceptible to the EENN seedpod extract and quercetin than Gram-positive bacteria.Conclusion: The results of the present study suggested that the effect of EENN seedpod and quercetin against the tested bacteria in vitro may contribute to the in vivo activities of the EENN seedpod and quercetin.

A comparative study of the antibacterial activity of Quercus robur (Ethanolic extract) and Zinc oxide nanoparticles on Salmonella (In vitro)

2018 ◽  
Vol 9 (SPL1) ◽  
Author(s):  
Hams H. H. Alfattli ◽  
Ghufran Zuhair Jiber ◽  
Ghaidaa Gatea Abbass
Keyword(s):  
Zinc Oxide ◽  
Antibacterial Activity ◽  
Zinc Oxide Nanoparticles ◽  
Quercus Robur ◽  
Ethanolic Extract ◽  
Inhibitory Effect ◽  
Significant Inhibition ◽  
Oxide Nanoparticles ◽  
Inhibition Zones

This study which designed to evaluate the inhibitory effect of Ethanolic extract of (Quercusrobur) and Zinc oxide nanoparticles on the growth of one genus of enterobacteriacae (Salmonella). In vitro. For this purpose graduate concentrates for plant extract (50, 100, 200, 400 )mg/ml which prepared and compared with Zinc oxide nanoparticles of different concentration (2, 1, 0.5, 0.25) μg/ml,and examined. The result showed that the studied medicinal plant has antibacterial activity against this bacteria which used. The result showed that the plant has good activity in decrease the growth of this bacteria. The results of the study also showed that the nano-ZnO has very effective antibacterial action against the studied bacteria which was Salmonella,nanoparticles concentrations lead to increasing in the inhibition zones of tested bacterial growth. We also study the effect of three antibiotics Lomefloxacin (LOM), Ciprofloxacin (SIP) and Rifampin (RA) and the result showed,in a comparison within the tested bacteria,Salmonella had a significant inhibition increase in Lomefloxacin ; the ciprofloxacin showed effect on tested bacteria. However,Rifampin does not show any effect on tested bacteria.

Novel Phospholipid-Based Labrasol Nanomicelles Loaded Flavonoids for Oral Delivery with Enhanced Penetration and Anti-Brain Tumor Efficiency

2020 ◽  
Vol 17 (3) ◽  
pp. 229-245
Author(s):  
Gang Wang ◽  
Junjie Wang ◽  
Rui Guan
Keyword(s):  
Drug Delivery ◽  
Brain Tumor ◽  
Oral Delivery ◽  
Safe Delivery ◽  
Drug Delivery Vehicles ◽  
Therapeutic Benefits ◽  
Delivery Vehicles ◽  
The Brain

Background: Owing to the rich anticancer properties of flavonoids, there is a need for their incorporation into drug delivery vehicles like nanomicelles for safe delivery of the drug into the brain tumor microenvironment. Objective: This study, therefore, aimed to prepare the phospholipid-based Labrasol/Pluronic F68 modified nano micelles loaded with flavonoids (Nano-flavonoids) for the delivery of the drug to the target brain tumor. Methods: Myricetin, quercetin and fisetin were selected as the initial drugs to evaluate the biodistribution and acute toxicity of the drug delivery vehicles in rats with implanted C6 glioma tumors after oral administration, while the uptake, retention, release in human intestinal Caco-2 cells and the effect on the brain endothelial barrier were investigated in Human Brain Microvascular Endothelial Cells (HBMECs). Results: The results demonstrated that nano-flavonoids loaded with myricetin showed more evenly distributed targeting tissues and enhanced anti-tumor efficiency in vivo without significant cytotoxicity to Caco-2 cells and alteration in the Trans Epithelial Electric Resistance (TEER). There was no pathological evidence of renal, hepatic or other organs dysfunction after the administration of nanoflavonoids, which showed no significant influence on cytotoxicity to Caco-2 cells. Conclusion: In conclusion, Labrasol/F68-NMs loaded with MYR and quercetin could enhance antiglioma effect in vitro and in vivo, which may be better tools for medical therapy, while the pharmacokinetics and pharmacodynamics of nano-flavonoids may ensure optimal therapeutic benefits.

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