Synthesis and Biological Investigations of Nitric Oxide Releasing Nateglinide and Meglitinide Type II Antidiabetic Prodrugs: In-Vivo Antihyperglycemic Activities and Blood Pressure Lowering Studies
Bibliographic record
Abstract
A new group of hybrid nitric oxide-releasing type II antidiabetic drugs possessing a 1-(pyrrolidin-1-yl)diazen-1-ium-1,2-diolate (13 and 18), 1-(N,N-diethylamino)diazen-1-ium-1,2-diolate (14 and 19), or nitrooxyethyl (15 and 20) moiety attached to the carboxylic acid group of the type II antidiabetic drugs nateglinide and meglitinide were synthesized. These prodrugs, based on the beneficial properties of nitric oxide (NO), were designed to reduce the risk of adverse cardiovascular events in diabetic patients. Ester prodrugs (13-15 and 18-20) exhibited appreciable oral antihyperglycemic activity comparable to the parent drugs in nonfasted diabetic rats. Systolic and diastolic blood pressure profiles validated the beneficial hypotensive properties of these prodrugs. These prodrugs released NO (1.3-72.2% range) upon incubation with either phosphate buffer solution at pH 7.4 or in the presence of serum. This new type of hybrid NO donor prodrug represents an attractive approach for the rational design of type II antidiabetic drugs with a reduced risk of contraindicated cardiovascular events.
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How this classification was reachedexpand
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 | 0.001 | 0.003 |
| 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) | 0.000 | 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, 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".