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Collagen Hydrolysis Products Reduce the Formation of Stress-Induced Ulcers by Regulating Stress-Associated Activation of the Neuroendocrine and Immune Systems

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Bulletin of Experimental Biology and Medicine Aims and scope

We studied the effect of collagen fragments (PGP and AcPGP) on serum content of epinephrine, corticosterone, and IL-1β in rats subjected to water-immersion stress. The degree of local inflammation accompanying ulceration was assessed by IL-1β production by ln. gastricus caudalis cells. In 1 h, the sharp increase in hormone concentrations in the blood of stressed animals reflected the high stress intensity. Intranasal administration of PGP reduced the area of stress-induced ulcers by 63%, prevented the increase in the levels of stress hormones and the main proinflammatory cytokine in rat blood. The concentrations of IL-1β in cell culture from regional lymph node of experimental animals returned to normal in 24 and 48 h after the stress. Acetylation of PGP prevents with gastroprotection, but does not abrogate other properties of the peptide.

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Correspondence to Z. V. Bakaeva.

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Translated from Byulleten’ Eksperimental’noi Biologii i Meditsiny, Vol. 165, No. 4, pp. 438-442, April, 2018

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Bakaeva, Z.V., Ermakova, N.V., Mankaeva, O.V. et al. Collagen Hydrolysis Products Reduce the Formation of Stress-Induced Ulcers by Regulating Stress-Associated Activation of the Neuroendocrine and Immune Systems. Bull Exp Biol Med 165, 449–452 (2018). https://doi.org/10.1007/s10517-018-4191-x

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  • DOI: https://doi.org/10.1007/s10517-018-4191-x

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