Study summary · research use only
Delta sleep-inducing peptide and Deltaran: potential approaches to antistress protection
Plain-language summary
Paraphrased from the published abstract below — not a verdict on whether anything works.
In this rat study, the authors compared delta sleep-inducing peptide and the formulation Deltaran (glycine with delta sleep-inducing peptide) on neurons in emotiogenic brain structures and on cerebral ischemia. The abstract reports that both agents had largely similar actions on spike activity of neurons in the dorsal hippocampus, hypothalamic paraventricular nucleus, and ventral anterior thalamic nuclei, activating some neurons. Delta sleep-inducing peptide predominantly activated dorsal hippocampus activity, while Deltaran mainly activated the paraventricular nuclei. The authors state that in all animals given Deltaran the index of brain blood supply was significantly greater than in animals not given Deltaran, and report that survival of cerebral ischemia was 100% in animals given Deltaran, whereas death occurred in 38% of animals not given Deltaran.
Abstract
The aims of the present work were to perform a comparative study of the effects of delta sleep-inducing peptide and Deltaran on neurons in emotiogenic brain structures and to address the question of whether it is possible to prevent or decrease the negative influences of stress loads on the severity of subsequent cerebral ischemia in rats, using glycine with delta sleep-inducing peptide combined in the neuroprotective formulation Deltaran. The results showed that Deltaran and delta sleep-inducing peptide had largely the same actions on the nature of spike activity of neurons in the dorsal hippocampus, paraventricular nucleus of the hypothalamus, and ventral anterior nuclei of the thalamus, evoking activation of some of the neurons in these brain structures. The dorsal hippocampus was dominated by activation of spike activity in response to administration of delta sleep-inducing peptide; Deltaran produced activation mainly in the paraventricular nuclei of the hypothalamus. In all animals given Deltaran, the index of brain blood supply was significantly greater than in animals not given Deltaran. The survival rate of cerebral ischemia was 100% in animals given Deltaran. Death occurred in 38% of animals not given Deltaran.
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