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Results of detection of poly-virulent bacterial strains Lactobacillus spp. during associative interaction with protozoa Blastocystis ho-minis in vivo

2022· article· en· W4312949834 on OpenAlex
Yulia Yu. Krasnoperova, Sevinj Sh. Mehmanova, Ekaterina A. Khusnutdinova

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueВестник Пермского университета Серия «Биология»=Bulletin of Perm University Biology · 2022
Typearticle
Languageen
FieldImmunology and Microbiology
TopicParasitic Infections and Diagnostics
Canadian institutionsArtificial Intelligence in Medicine (Canada)
Fundersnot available
KeywordsVirulenceMicrobiologyBiologyBlastocystisLactobacillusFimbriaProtozoaBacterial adhesinPopulationLactobacillus reuteriLactobacillus caseiBacteriaFecesGeneGenetics

Abstract

fetched live from OpenAlex

The identification of polyvirulent strains of Lactobacillus spp. bacteria with associative interaction with protozoa Blastocystis hominis in vivo was carried out. Lactobacillus spp. and B. hominis strains were obtained from the feces of 396 patients undergoing examination for intestinal dysbiosis. Identification was carried out using microscopic, bacteriological and parasitological methods. 112 reference strains of lactobacilli NK1 and K3SH24 deposited at the Institute of Genetics and Breeding of Industrial Microorganisms were used as control. The degree of virulence of the simplest blastocysts was determined by intraperitoneal administration to white mice (weighing 17.4+1.5 g) 0.5 ml of a culture suspension of the studied microorganisms grown on Suresh medium. Primers to several genes determining the ability to form type 1 fimbriae, type S and P fimbriae, bacterial adhesin intimin and hemolysin were used in the investigation. Testing of 396 Lactobacillus spp. strains isolated from microsymbiocenoses with Blastocystis hominis of varying degrees of virulence showed that the dynamics of detection of pathogenicity genes in lactobacilli increased with an increase in the degree of virulence of protozoa. Most often, in the general pool of lactobacillus strains, the desired amplicons were detected using primers to the fimA gene (up to 67.9%). During associative interaction with moderately and highly virulent blastocysts, an increase in the heterogeneity of the lactobacillus population was revealed, manifested by an increase in the frequency of detection of all studied genetic determinants of pathogenicity, compared with Lactobacillus spp. strains isolated from associations with avirulent B. hominis and in the control group.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow), Insufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.278
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0010.000
Science and technology studies0.0000.001
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.001
Insufficient payload (model declined to judge)0.0020.000

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.

Opus teacher head0.007
GPT teacher head0.208
Teacher spread0.201 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it