A bacteria and peptide combined preparation for improving the function of the blood-brain barrier

Glycosylated modified corn peptides prepared by dry heat Maillard reaction, combined with Lactobacillus helveticus, solved the problem that probiotics and corn peptides cannot directly act on brain endothelial cells, achieving multi-dimensional improvement of the blood-brain barrier, including peptide BBB crossing, tight junction protein restoration, neuroinflammation inhibition, and cognitive function repair.

CN122398985APending Publication Date: 2026-07-17JIANGXI YIKANGLI BIOTECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGXI YIKANGLI BIOTECHNOLOGY CO LTD
Filing Date
2026-06-08
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing technologies, probiotics cannot directly act on brain endothelial cells to promote the expression of tight junction proteins, corn peptides cannot cross the blood-brain barrier, and the antioxidant activity of corn peptides alone is insufficient to effectively inhibit oxidative damage to the blood-brain barrier. Existing technologies have not explored the effects of glycosylated peptides on blood-brain barrier function.

Method used

Xylooligosaccharides were covalently grafted onto corn peptides using a dry-heat Maillard reaction to prepare glycosylated modified corn peptides. These peptides were then combined with Lactobacillus helveticus to form a combined bacterial and peptide formulation that improves brain barrier function.

Benefits of technology

It enables peptides to cross the blood-brain barrier, promotes the expression of tight junction proteins in brain endothelial cells, significantly reduces neuroinflammation in brain tissue, enhances antioxidant activity, repairs blood-brain barrier function, and improves cognitive function.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明属于神经保护技术领域,具体涉及一种改善大脑屏障功能的菌与肽联合制剂,以质量份计,有以下组分制备而成:瑞士乳杆菌菌粉6‑15份、糖基化改性玉米肽40‑65份、低聚果糖30‑40份;其中,所述糖基化改性玉米肽由玉米肽与低聚木糖经干热法美拉德反应制得。本发明采用瑞士乳杆菌与玉米肽‑低聚木糖糖基化接枝改性产物联合的技术手段,经共价接枝改性的肽获得了原肽不具备的血脑屏障穿越能力,同时兼具抗氧化效应,使本发明联合制剂在BBB通透性改善、紧密连接蛋白恢复、神经炎症抑制及认知功能修复等方面均显著优于菌加未改性肽对照和各成分直接混合对照,说明本发明的联合制剂通过菌与接枝改性肽联合机制实现了对血脑屏障功能的多维度、深层次改善。
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