Each specimen was analyzed in duplicate for each target in a single batch, and we used the average of the two Ct values for each target. Spearman’s rank-correlation coefficients between the two Ct values (in duplicated runs) in each of cases with detectable target amplification in the quantitative PCR assays for Fusobacterium nucleatum (n = 76) and SLCO2A1 (n = 598) were 0.95 and 0.92, respectively. The amount of Fusobacterium nucleatum in each specimen was calculated as a relative unitless value normalized with SLCO2A1 using the 2−ΔCt method (where ΔCt = “the average Ct value of Fusobacterium nucleatum” - “the average Ct value of SLCO2A1”) as previously described.32 (link)
Fusobacterium nucleatum
It is associated with various oral and systemic diseases, including periodontal disease, colorectal cancer, and adverse pregnancy outcomes.
This versatile pathogen utilizes a range of virulence factors to adhere to host cells, evade immune responses, and promote inflammation.
Exploring the power of PubCompare.ai's AI-powered platform can enhance research reproducibility and accuracy in the study of F. nucleatum, helping users locate the best protocols from literature, preprints, and patents, while leveraging AI-driven comparisons to identify the most reliable and effective approaches.
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Most cited protocols related to «Fusobacterium nucleatum»
CT values were related to the standard curve ranging from 0.1 pg/µl to 1 ng/µl of bacterial DNA. The reference DNA for the q-PCR standard curve was purified from 800 µl human saliva spiked with 104-bacteria of 6 orals strains, Streptococcus mutans, Fusobacterium nucleatum, Porphyromonas gingivalis, Porphyromonas catoniae, Propionibacterium propionicum, Tannerella forsythia. Total bacterial DNA was quantified by nanodrop and diluted to fit targeted concentrations. The reported qPCR results adhere to the MIQE standards for reporting qPCR data (
C. pecorum LAMP was evaluated using a: (1) 18 DNA samples extracted from previously characterised koala (n = 7), sheep (n = 4), cattle (n = 4) and pig C. pecorum (n = 3) cultures (
We also evaluated the specificity of the assays against DNA samples extracted from previously characterised (i) chlamydial isolates (koala C. pneumoniae LPColN, C. abortus S26/3, C. suis S45, C. trachomatis serovar D, C. murridarum Nigg, C. caviae GPIC) and uncultured Chlamydiales (Fritschea spp.); (ii) Gram negative Escherichia coli and Prevotella bivia; Gram positive Fusobacterium nucleatum, Staphylococcus epidermidis, S. aureus, Streptococcus spp., and Enterococcus faecalis; and (iii) commercially available human gDNA (Promega, Alexandria, NSW 2015), all available in our laboratory (
In order to evaluate rapid swab processing, 18 ocular, cloacal and UGT (14 dry and four RNA-Later) clinical swabs taken from 14 koalas with presumptive chlamydiosis were used for testing without DNA extraction. Briefly, RNA-Later and dry swabs with added 500 µL TE buffer were vortexed vigorously for 5 min. 300 µL aliquots were then heated to 98 °C for 15 min to lyse DNA, following LAMP testing. The use of these swabs, collected as a part of routine diagnostic testing, is also under Animal Ethics approval exemption (AN/E/14/01). An aliquot of 50 µL of the swab suspension was used for LAMP and qPCR assays, while from the remaining volume of the swab suspension was used for DNA extraction, in order to compare swab suspension and its paired extracted DNA as a template in the assays.
Most recents protocols related to «Fusobacterium nucleatum»
Example 9
The staggered inoculation setup is shown in
Goal: Determine if growth competition between the inhibitory bacteria and Sm played a role in the inhibition of acid production.
Protocol: The cells of Rothia were grown overnight at 37° C. in shaking aerobic conditions while Fn (Fusobacterium nucleatum) and Va (Veillonella atypica) were grown overnight at 37° C. in anaerobic conditions. Fn was grown in Columbia Broth and Va in BHI. The cell cultures had their optical density measured and were diluted to OD600 0.5 in fresh BHI media. 20 μL of each culture were spotted onto a BHI agar plate with Phenol red at two location. The spots were dried then put into their respective growth conditions overnight. The next day the process was repeated with Sm. The cells of Sm were grown overnight at 37° C. in aerobic +5% CO2 conditions and diluted to OD600 0.5 in fresh BHI media the next day. 20 μL of the diluted Sm was spotted on the plate in two locations: one by itself and one adjacent to one of the spots of the inhibitor bacterial species. The plates were dried and incubated overnight at 37° C. in aerobic +5% CO2 conditions and the pH of the Sm alone and the Sm co-culture colonies (“Co-Sm”) were measured using a flat bottom pH probe.
Escherichia coli ATCC 25922 was grown in Mueller Hinton Broth (MHB; Oxoid Limited, Hampshire, United Kingdom), and the biofilm was developed in MHB for 24 h of incubation at 37°C in static and aerobic conditions;
Pseudomonas aeruginosa ATCC 27853 growth and biofilm formation were conducted in Luria Bertani Broth (LB; Oxoid Limited, Hampshire, United Kingdom) for 24 h of incubation at 37°C in static and aerobic conditions;
Streptococcus mutans UA 159 was grown in Brain Heart Infusion (BHI; Oxoid Limited, Hampshire, United Kingdom), and the biofilm was developed in BHI + 1% of sucrose (BHIS) for 24 h of incubation at 37°C in static and anaerobic conditions;
Staphylococcus aureus ATCC 29213 was grown in Tryptic Soy Broth (TSB; Oxoid Limited, Hampshire, United Kingdom), and the biofilm was developed in TSB + 1% of glucose (TSBG) for 24 h of incubation at 37°C in static and aerobic conditions;
Fusobacterium nucleatum ATCC 25586 growth and biofilm formation were conducted in BHI for 48 h of incubation at 37°C in static and anaerobic conditions.
A. paeoniifolius tubers were procured locally, washed thoroughly, sliced into small pieces, shade dried, and milled to powder form using a mechanical grinder. Then, the obtained powder was stored in airtight bottles. The aqueous and ethanolic extracts of A. paeoniifolius were prepared using the Soxhlet extraction method.[4 (link)]
The serial broth dilution method was carried out to check the minimum inhibitory concentrations of extracts of A. paeoniifolius and tetracycline hydrochloride. Stock solutions for our study were constituted by mixing 200 mg of prepared aqueous and ethanolic extracts in 1 ml of distilled water, respectively. To study the minimal inhibitory concentrations (MIC) of aqueous extract of A. paeoniifolius, a set of 12 sterile vials were labeled serially from 1 to 12 and placed on a rack. Tube number 1 consisted of 400 ml of working dilution of aqueous extract of A. paeoniifolius (stock solution). 200 ml of thioglycolate broth was added in all tubes numbered from 2 to 12. Followed by this, 10 ml of bacterial suspension was added from tube number 1 to 10 and tube number 12. To tube number 11, no organism was added. From tube number 1, 200 ml of A. paeoniifolius extract was transferred to tube number 2 and mixed well. Now, from the mixed solution in the tube number 2, 200 ml of solution was transferred to the tube number 3 and was mixed well. This was continued till tube number 11 and at last 200 ml of the mixture was discarded from tube number 11. Tube number 11 consisted of broth and extract but no organism, and this was considered as broth control (to ascertain sterility check). Tube number 12 consisted of broth and organism but no extract and was considered as organism control (to check organism growth). By following this serial dilution, the concentrations of the aqueous extract of A. paeoniifolius achieved were 100, 50, 25, 12.5, 6.25, 3.1, 1.6, 0.8, 0.4, and 0.2 mg/ml, respectively. The tubes were then incubated for 48 h at 37°C. After the incubation, a visual inspection was carried out to determine the MIC values. Turbidity in the MIC tube indicated growth of the bacteria implying that the bacteria were resistant to the aqueous extract of A. paeoniifolius. The same procedure was carried out for ethanolic extract of A. paeoniifolius and tetracycline hydrochloride. Tetracycline hydrochloride acts as a standard control group in the present study.
From the MIC dilution tubes, the tubes which were found sensitive to MIC were plated and the colony count was noted after incubating it for 24 h. MBC was done to see whether there was bactericidal or bacteriostatic effect of the extracts and tetracycline hydrochloride against the selected organisms. If there was no growth, it was considered to have bactericidal effect. If there was growth, it was concluded to be bacteriostatic.
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More about "Fusobacterium nucleatum"
It is associated with various oral and systemic diseases, including periodontal disease, colorectal cancer, and adverse pregnancy outcomes.
This versatile pathogen, also known as F. nucleatum or FN, utilizes a range of virulence factors to adhere to host cells, evade immune responses, and promote inflammation.
Hemin and Menadione are important growth factors required by F. nucleatum, which is often cultured in a nutrient-rich medium like BHI (Brain Heart Infusion) broth supplemented with yeast extract and FBS (Fetal Bovine Serum).
F. nucleatum is known to interact with other oral bacteria, such as Porphyromonas gingivalis, Staphylococcus aureus, and Streptococcus mutans, contributing to the complex microbial dynamics in the oral cavity.
Exploring the power of PubCompare.ai's AI-powered platform can enhance research reproducibility and accuracy in the study of F. nucleatum.
This innovative tool helps users locate the best protocols from literature, preprints, and patents, while leveraging AI-driven comparisons to identify the most reliable and effective approaches.
Experience seamless research with PubCompare.ai's intuitive interface and cutting-edged technology.