Modulation of serotonergic, dopaminergic and tubulin-associated pathways by tannin-free natural products in <i>Caenorhabditis elegans</i> reveals effective anthelmintic drug targets
Bibliographic record
Abstract
Abstract Despite of the Southeast Asia’s rich medicinal flora, Bangladesh behinds in utilizing the Caenorhabditis elegans model for lead anthelmintic compound discovery. Moreover, target-specific resistance (TSR) and non-target-specific resistance (NTSR) surge have influenced the lead compounds bio-discovery over the past decades. To date, prior researches are limited to basic efficacy tests and conventional extraction protocol. Therefore, the study was designed to assess the anthelmintic potency of 19 tannin-free natural products (NPs) induced alterations of neurotransmission in C. elegans . The anthelmintic activity was assessed by examining the motility (head thrashes and body bends), mortality, egg hatch inhibition (EHI) and expression of cat-1, ser-1, dat-1 , and tba-1 genes. Eleven (11) plant extracts, Azadirachta indica A. Juss., Cassia alata L., Portulaca oleracea L., Saraca asoca (Roxb.) W.J.de Wilde, Eleusine indica L. Gaertn., Persicaria hydropiper L. Delarbre, Foeniculum vulgare Mill., Clerodendrum infortunatum L., Linum usitatissimum L., Hibiscus rosa-sinensis L., and Vitex negundo L. revealed a significant neurobehavioral and developmental impairments in C. elegans. Persicaria hydropiper L. Delarbre @ 1□mg/mL, caused the lowest body bending (31□±□1.7, p □<□0.01), while Eleusine indica L. Gaertn . reduced head thrashing (66.3□±□3.0, p □<□0.01). L. usitatissimum L. exhibited the highest lethality (87.3□±□1.8%, p □<□0.01) and the LD□□ values of Eleusine indica L. Gaertn. (0.40□mg/mL) and Linum usitatissimum L. (0.411□mg/mL) were the lowest. Interestingly, C. infortunatum L. exhibited the strongest EHI (97.5□±□3.0%, p □<□0.01). Gene expression analysis revealed a significant down-regulation of the dopaminergic and serotonergic pathway indicating the metabolic and reproductive disruptions. This pioneering study underscores the anthelmintic potency of native plant extracts, highlighting their neuromodulatory and developmental impact on C. elegans . Altogether, these findings suggest that the selected genes may serve as potential drug targets, paving the way for lead compounds identification and development to the advance anthelmintic drug discovery from the NPs.
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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 | 0.000 | 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 | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 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".