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streptococcus pneumoniae atcc 49619 (ATCC)

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ATCC streptococcus pneumoniae atcc 49619
Streptococcus Pneumoniae Atcc 49619, supplied by ATCC, used in various techniques. Bioz Stars score: 99/100, based on 2982 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
https://www.bioz.com/product/streptococcus+pneumoniae+atcc+49619/Streptococcus+pneumoniae+(Klein)+Chester/pm41802204-51-8-10
Average 99 stars, based on 2982 article reviews

streptococcus pneumoniae atcc 49619 - by Bioz Stars, 2026-10

99/100 stars

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Control:

Article Title: Trimethoprim-sulfamethoxazole susceptibility in beta-hemolytic streptococci in a Canadian tertiary center.
Article Snippet: Each isolate, initially identified by latex agglutination (MedicoDxTM Strep-Select Grouping Kit (MedicoDx, Ottawa, Canada)) and/or MALDITOF (Matrix-Assisted Laser Desorption/Ionization - Time of Flight) mass spectrometry (VITEK® MS, IVD Knowledge Base v3.2, bioMérieux, Marcy-l’Étoile, France), was subcultured from the primary clinical specimen medium on tryptic soy agar with 5% sheep blood (TSA, Oxoid, Basingstoke, UK) and incubated for 18–24 hours at ~35◦C in 5% CO2. .. Quality control was performed according to European Committee on Antimicrobial Susceptibility Testing (EUCAST) [18] and Clinical and Laboratory Standards Institute (CLSI) [19] recommendations using Streptococcus pneumoniae ATCC 49619. ..

Article Title: Assessment of bacterial profile of drinking water from different sources in Nekemte and their antibiotic susceptibility pattern, Western Ethiopia.
Article Snippet: .. Repeatability was guaranteed by the inclusion of quality control strains like Escherichia coli ATCC 25922 and Streptococcus pneumoniae ATCC 49619. ..

Bacteria:

Article Title: Clinical significance and simultaneous microevolution of two closely-related nontuberculous mycobacteria species
Article Snippet: .. No acid-fast bacilli were detected in smears, and no bacteria grew from cultures on blood agar at 35 °C for 48 h although the positive control, Streptococcus pneumoniae ATCC 49619, grew. .. He was empirically administered oral azithromycin (0.5 g, qd) for 3 days, after which fever, cough, sore throat, muscle soreness, and dizziness resolved, but mild cough with scant sputum persisted.

Positive Control:

QC/EQA/Proficiency:

Article Title: Clonal clusters of multidrug-resistant Brazilian Corynebacterium striatum strains reveal putative virulence traits.
Article Snippet: Corynebacterium striatum has been increasingly associated with nosocomial outbreaks and antimicrobial resistance.. Objectives This study presents the comparative analysis of 26 multidrug-resistant (MDR) C. striatum strains isolated in Brazil.. Methods Additional genomes from international sources were incorporated.

other:

Article Title: Cationic Liposome-Fused Endolysin Lys40 Overcomes Outer Membrane Barriers and Enhances Survival in Salmonella -Infected Chicks
Article Snippet: Streptococcus pneumoniae ATCC 49619 , 1.

Article Title: Benzoxaborole-modified azithromycins inhibit translation without inducing ermC expression
Article Snippet: Streptococcus pneumoniae ATCC 49619 , 0.06 , 0.5 , 0.125 , 0.125 , 0.125.

Image Search Results

Effects of azeliragon on the in vitro growth of S. pneumoniae . Dose–response relationships of S. pneumoniae ATCC 49619 (A) , S. pneumoniae 1057 (B) , and S. pneumoniae 1044 (C) following treatment with increasing concentrations of azeliragon. Bacterial growth was measured after 18 h of incubation and expressed as OD 600 . Effects of azeliragon on the growth kinetics of S. pneumoniae ATCC 49619 (D) , S. pneumoniae 1057 (E) , and S. pneumoniae 1044 (F) . Bacteria were cultured under control conditions or with different concentrations of azeliragon, and OD 600 was recorded at indicated time points to generate growth curves. Data were presented as mean ± SD. The experiments were performed with three independent biological replicates ( n = 3). “ns” represented no significant difference, ** p < 0.01.

Journal: Frontiers in Medicine

Article Title: Protective effects of the RAGE inhibitor azeliragon as a potential anti- Streptococcus pneumoniae therapeutic in sepsis models

doi: 10.3389/fmed.2026.1793580

Figure Lengend Snippet: Effects of azeliragon on the in vitro growth of S. pneumoniae . Dose–response relationships of S. pneumoniae ATCC 49619 (A) , S. pneumoniae 1057 (B) , and S. pneumoniae 1044 (C) following treatment with increasing concentrations of azeliragon. Bacterial growth was measured after 18 h of incubation and expressed as OD 600 . Effects of azeliragon on the growth kinetics of S. pneumoniae ATCC 49619 (D) , S. pneumoniae 1057 (E) , and S. pneumoniae 1044 (F) . Bacteria were cultured under control conditions or with different concentrations of azeliragon, and OD 600 was recorded at indicated time points to generate growth curves. Data were presented as mean ± SD. The experiments were performed with three independent biological replicates ( n = 3). “ns” represented no significant difference, ** p < 0.01.

Article Snippet: To further assess the effects of azeliragon on pneumococcal growth, the reference strain S. pneumoniae ATCC 49619 and two clinical isolates (1057 and 1044) were examined under different drug concentrations.

Techniques: In Vitro, Incubation, Bacteria, Cell Culture, Control

Time-kill activity and biofilm disruption effects of azeliragon against S. pneumoniae . Time-kill curves of S. pneumoniae ATCC 49619 (A) , S. pneumoniae 1057 (B) , and S. pneumoniae 1044 (C) treated with azeliragon (4× MIC). Bacteria were cultured under control conditions or treated with azeliragon (4× MIC) or vancomycin (4× MIC), and viable counts (CFU/mL) were determined at indicated time points. Effects of azeliragon (4× MIC) on biofilm biomass of S. pneumoniae ATCC 49619 (D) , S. pneumoniae 1057 (E) , and S. pneumoniae 1044 (F) . Mature biofilms were treated with the indicated drugs for 24 h and quantified by crystal violet staining. Results are expressed as OD₅₇₀. Data were presented as mean ± SD. Data were presented as mean ± SD. The experiments were performed with six independent biological replicates ( n = 6). Group comparisons for biofilm assays were analyzed by one-way ANOVA followed by Tukey’s multiple-comparison test. “ns” represented no significant difference, *** p < 0.001.

Journal: Frontiers in Medicine

Article Title: Protective effects of the RAGE inhibitor azeliragon as a potential anti- Streptococcus pneumoniae therapeutic in sepsis models

doi: 10.3389/fmed.2026.1793580

Figure Lengend Snippet: Time-kill activity and biofilm disruption effects of azeliragon against S. pneumoniae . Time-kill curves of S. pneumoniae ATCC 49619 (A) , S. pneumoniae 1057 (B) , and S. pneumoniae 1044 (C) treated with azeliragon (4× MIC). Bacteria were cultured under control conditions or treated with azeliragon (4× MIC) or vancomycin (4× MIC), and viable counts (CFU/mL) were determined at indicated time points. Effects of azeliragon (4× MIC) on biofilm biomass of S. pneumoniae ATCC 49619 (D) , S. pneumoniae 1057 (E) , and S. pneumoniae 1044 (F) . Mature biofilms were treated with the indicated drugs for 24 h and quantified by crystal violet staining. Results are expressed as OD₅₇₀. Data were presented as mean ± SD. Data were presented as mean ± SD. The experiments were performed with six independent biological replicates ( n = 6). Group comparisons for biofilm assays were analyzed by one-way ANOVA followed by Tukey’s multiple-comparison test. “ns” represented no significant difference, *** p < 0.001.

Techniques: Activity Assay, Disruption, Bacteria, Cell Culture, Control, Staining, Comparison

In vivo protective effects of azeliragon in a mouse infection model. (A) Determination of the infectious dose of S. pneumoniae 1044. (B) Therapeutic efficacy of azeliragon in the pneumonia model. (C) Seven-day survival curves of mice with sepsis induced by S. pneumoniae ATCC 49619. Mice received vehicle control, bacterial control, azeliragon (5 mg/kg or 10 mg/kg), or vancomycin (10 mg/kg). Each group contained 10 mice. Survival was monitored continuously. (D) Seven-day survival curves of mice with sepsis induced by the clinical S. pneumoniae isolate 1044. Experimental groups and treatments were identical to those in (A) . Survival data were plotted using the Kaplan–Meier method, and statistical significance was determined using the log-rank (Mantel–Cox) test. “ns” represented no significant difference, * p < 0.05, ** p < 0.01, and *** p < 0.001.

Journal: Frontiers in Medicine

Article Title: Protective effects of the RAGE inhibitor azeliragon as a potential anti- Streptococcus pneumoniae therapeutic in sepsis models

doi: 10.3389/fmed.2026.1793580

Figure Lengend Snippet: In vivo protective effects of azeliragon in a mouse infection model. (A) Determination of the infectious dose of S. pneumoniae 1044. (B) Therapeutic efficacy of azeliragon in the pneumonia model. (C) Seven-day survival curves of mice with sepsis induced by S. pneumoniae ATCC 49619. Mice received vehicle control, bacterial control, azeliragon (5 mg/kg or 10 mg/kg), or vancomycin (10 mg/kg). Each group contained 10 mice. Survival was monitored continuously. (D) Seven-day survival curves of mice with sepsis induced by the clinical S. pneumoniae isolate 1044. Experimental groups and treatments were identical to those in (A) . Survival data were plotted using the Kaplan–Meier method, and statistical significance was determined using the log-rank (Mantel–Cox) test. “ns” represented no significant difference, * p < 0.05, ** p < 0.01, and *** p < 0.001.

Techniques: In Vivo, Infection, Drug discovery, Control

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