Delta-sleep-inducing peptide potentiates anticonvulsive activity of valproate against metaphit-provoked audiogenic seizure in rats.
Hrncić. Dragan D; Stanojlović. Olivera O; Zivanović. Dragana D; Susić. Veselinka V
Key Findings
- DSIP alone did not change seizure timing.
- A low, non‑protective dose of VPA alone did not change seizure timing.
- Combining DSIP (1 mg/kg) with VPA (50 mg/kg) significantly delayed seizure onset for up to 6 hours without added motor impairment.
- EEG still showed epileptiform activity and there was no increase in neurotoxicity.
Practical Outcomes
- The study suggests DSIP might boost the effect of a low dose of valproate in an animal seizure model, but it offers no clear protocol for humans. There’s no evidence it works for everyday brain health, longevity, or performance, and safety/ dosing in people remain unknown. For biohackers, this is an interesting hint rather than an actionable supplement strategy.
Summary
In a rat study, a tiny brain peptide called DSIP didn't stop seizures by itself, and a low dose of the anti‑seizure drug valproate (VPA) also didn't work alone. But when the two were given together, the rats took longer before having a seizure, without showing extra motor problems. The brain wave patterns still looked seizure‑like, and there was no extra toxicity.
Abstract
The effect of delta-sleep-inducing peptide (DSIP) on the anticonvulsive activity of a nonprotective valproate (VPA) dose in a metaphit model of generalized, reflex audiogenic seizures in adult Wistar rats was studied. The animals that received metaphit (10 mg/kg) were exposed to audiogenic stimulation (100 +/- 3 dB, 60 s) at hourly intervals. Metaphit-treated rats displaying seizures in 8 previous tests were i.p. injected with VPA (50 mg/kg) or DSIP (1.0 mg/kg) or their combination. Latency to seizure was behaviorally assessed. The EEGs and power spectra were recorded and analyzed. Neurotoxicity was evaluated by the chimney test. DSIP or VPA alone expressed no significant effect on the latency duration, but their combination significantly prolonged latency to seizure during 6 h after injection, while inducing no significant motor impairment. Neither the applied drugs nor their combination abolished metaphit-provoked EEG epileptiform activity. The results show that DSIP potentiated anticonvulsive effects of a nonprotective VPA dose in a metaphit model of audiogenic seizures without influencing its neurotoxicity.
Study Information
pubmed
2006
2006-04-26T00:00:00.000Z
10.1159/000093001
9
32