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Helminth-induced modulation of neuroinflammation in a mouse model of multiple sclerosis

2020· article· en· W4313369086 on OpenAlexaff
Naomi M. Fettig, Marc S. Horwitz, Lisa C. Osborne

Bibliographic record

VenueThe Journal of Immunology · 2020
Typearticle
Languageen
FieldMedicine
TopicMultiple Sclerosis Research Studies
Canadian institutionsUniversity of British Columbia
Fundersnot available
KeywordsExperimental autoimmune encephalomyelitisImmunologyMultiple sclerosisNeuroinflammationImmune systemEncephalomyelitisHygiene hypothesisInterleukin 17Autoimmune diseaseBiologyMedicineInflammationAntibody

Abstract

fetched live from OpenAlex

Abstract Environmental factors play an important role in multiple sclerosis (MS) disease progression, but the exact cause remains unknown. The hygiene hypothesis suggests that a lack of exposure to microbes may alter disease susceptibility. Helminths in particular may play a role in preventing autoimmune disease due to the type 2 immune response they typically induce. Trichinella spiralis (Ts) first forms a transient intestinal infection followed by chronic infection where it exerts type 2 and regulatory immune responses, respectively. To evaluate the role of helminth infection in development and progression of MS, C57BL/6J mice were first chronically infected with Ts, then immunized with MOG35–55 to induce experimental autoimmune encephalomyelitis (EAE), a mouse model of MS. Ts-infected EAE mice have an altered disease course compared to uninfected controls, demonstrating delayed onset, reduced incidence, and symptom remission. Despite an overall decrease in lymphocyte recruitment to the central nervous system (CNS) in Ts/EAE mice, elevated numbers of infiltrating Th2 cells are maintained through the EAE disease course. In contrast, regulatory T cell expansion is dependent on the presence or absence of EAE symptoms. Histological analysis of cellular infiltration and demyelination in the spinal cord indicate limited demyelination with reduced infiltration into the parenchyma of Ts/EAE mice compared to EAE controls. Further immunophenotyping in the CNS to evaluate the contributions of infiltrating macrophages will be performed, as well as analyses of the cytokine milieu in the CNS. These results suggest that chronic Ts infection limits neuroinflammation, as shown by reduced clinical, immunological, and pathologic signs of EAE.

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 imitation

Not 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.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
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 score0.002
Threshold uncertainty score0.005

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0010.001
Bibliometrics0.0010.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0010.002
Insufficient payload (model declined to judge)0.0020.001

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.

Opus teacher head0.133
GPT teacher head0.300
Teacher spread0.166 · 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

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designBench or experimental
Domainnot available
GenreEmpirical

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".

Quick stats

Citations0
Published2020
Admission routes1
Has abstractyes

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