Bifidobacterium adolescentis – a beneficial microbe
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.
Bibliographic record
Abstract
Bifidobacterium adolescentis is one of the most abundant bifidobacterial species in the human large intestine, and is prevalent in 60-80% of healthy human adults with cell densities ranging from 109-1010 cells/g of faeces. Lower abundance is found in children and in elderly individuals. The species is evolutionary adapted to fermenting plant-derived glycans and is equipped with an extensive sugar transporter and degradation enzymes repertoire. Consequently, the species is strongly affected by dietary carbohydrates and is able to utilize a wide range of prebiotic molecules. B. adolescentis is specialized in metabolizing resistant starch and is considered a primary starch degrader enabling growth of other beneficial bacteria by cross-feeding. The major metabolic output is acetate and lactate in a ratio of 3:2. Several health-beneficial properties have been demonstrated in certain strains of B. adolescentis in vitro and in rodent models, including enhancement of the intestinal barrier function, anti-inflammatory and immune-regulatory effects, and the production of neurotransmitters (GABA), and vitamins. Although causalities have not been established, reduced abundance of B. adolescentis as part of a dysbiotic colonic microbiota in human observational studies has been associated with inflammatory bowel diseases, irritable bowel syndrome, coeliac disease, cystic fibrosis, Helicobacter pylori infection, type 1 and 2 diabetes, metabolic syndrome, nonalcoholic steatohepatitis, and certain allergies. It is therefore reasonable to conceive B. adolescentis as a health-associated, or even health-promoting bacterial species in humans.
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 imitationNot 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.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 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 it