Detection and Distribution of various HLAR Gene in Enterococcus faecalis and Enterococcus faecium by Multiplex-PCR
Bibliographic record
Abstract
Enterococcus spp.Antimicrobial Drug Resistance Multiplex-PCR Background and Objectives: In recent years, three new aminoglycoside resistance genes such as aph (3ʹ)-IIIa and ant (4ʹ)-Ia, that encode for the APH (3ʹ) and ANT (4ʹ) have also been identified.The aim of this study was to come up with a multiplex-PCR procedure for detection of aac(6ʹ)-Ie-aph(2ʹʹ)-Ia, aph(3ʹ)-IIIa, ant(4ʹ)-Ia genes in the Enterococcus spp.clinical isolates.Material and Method: 100 samples were isolated from various specimens, from various hospitals in Tehran, Iran.The grown colonies were identified by standard biochemical and disc diffusion tests.Multiplex-PCR for aac (6')-Ie -aph(2'')-Ia , aph(3ʹ)-IIIa, ant(4ʹ)-Ia genes amplification were performed in order to confirm bacterial colonies as Enterococcus spp.Results: Eighty four (84%) Enterococcus spp.isolates were collected from the 100 specimens.The highest and lowest isolates were related to urine (48%) and sputum (2%).Antibiotic susceptibility test results showed that the highest and lowest resistance was related to tetracycline and nitrofurantoin, respectively.Multiplex PCR results revealed that aac (6ʹ)-Ie-aph (2ʹʹ)-Ia, ant (4ʹ)-Ia and aph (3ʹ)-IIIa genes were present in 6% of the isolated bacteria from the urine, 2% from the wound and 1% from the pleural samples.the aac (6ʹ)-Ie-aph (2ʹʹ)-Ia and aph (3ʹ)-IIIa genes were present in 25% of the isolated strains from the urine, 3% from the wound and 2% from the plural specimens.Nine percent of the strains were isolated from the urine, 3% from the wound and 1% from the plural were positive for aac (6ʹ)-Ie-aph (2ʹʹ)-Ia and ant (4ʹ)-Ia genes.Discussion: we had observed enterococci isolates with phenotypic resistance to HLAR and demonstrated aac(6′)-Ie-aph(2′′)-Ia and aph(3′)-IIIa genes more frequently occurring than other genes.A collection of AMEs are accountable for HLAR status among Enterococcus species.The aac (6ʹ)-Ie-aph (2ʹʹ)-Ia gene was detected more frequently than the other genes.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".