Significance of immune factors in Crohn's disease development
Bibliographic record
Abstract
The aim of review. To analyze modern approach to pathogenesis of Crohn's diseases (CD), to determine effect of individual immunogenetic factors on development and progression of disease, in particular, in relation to HLA profile.Summary. Series of the population studies, confirming association of HLA antigens with human diseases were carried out. Main histocompatibility complex (MHC) plays the leading role in immune response as well as in development of CD, therefore occurrence of disease is related to changes at genetic level. Many studies indicate relation of Crohn's disease to specific genes of HLA-system. Hence, scientists of USA, Canada, Spain, Finland confirmed association of HLA-DRB1*0103 allele with development of CD, as well as with course of inflammatory bowel diseases and their complications. Important role in development of Crohn's disease in different countries is played by specific groups of alleles. In Israel interrelation of CD with DR15, in Germany — with HLA-DRB1*0701, in China — with HLA-Cw*12, in Japan — with HLA-DRB1*0405 and 0410 was established. Associations with clinical forms of disease was found, in particular in Italy presence of DRB1*0304, DRB1*0305, DRB1*0307, DRB1*0309 is linked to total involvement of the large intestine, in Spain presence of HLA-DRB1*07 — with terminal ileitis at CD, HLA-DRB1*0103 — with colitis. It has been demonstrated, that certain HLA-haplotypes have stronger association with Crohn's disease. For example, in Japan presence of Cw*1202-B*5201-DRB1*1502 haplotype reduces the risk of CD development. In Russia these studies are less concerned and were carried out by serological HLA typing methods. So, development of Crohn's disease was associated with B14, DR3 and DR5.Conclusion. Presented ambiguous results are caused, first of all, by ethnic differences and different frequency of some alleles in different populations. Thus, assessment of predisposition and resistance to Crohn's disease requires detection of HLA-markers in each specific population 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.
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) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.005 | 0.001 |
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".