Saururus Chinensis Polysaccharide Fractions for IBD Barrier Repair
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Solution Overview
Problem
Current treatments for inflammatory bowel disease (IBD) are not fundamental and have significant side effects, with a need for a therapeutic agent that can restore mucosal production and tight junction robustness in intestinal epithelial cells to manage chronic inflammation effectively.
Innovation Solution
A specific preparation method for a solvent fraction of Saururus chinensis involving ethanol extraction, enzymatic treatment, and purification steps to obtain active polysaccharides, which are then formulated into pharmaceutical or health functional food compositions for oral or parenteral administration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conventional drugs (5-aminosalicylic acid, corticosteroid, immunomodulator, anti-TNF-α) are used to treat IBD, then inflammatory symptoms are suppressed, but side effects increase and fundamental therapeutic effect is lacking
Solution Approach 1:
The patent extracts and isolates specific active polysaccharide fractions (SCEP1, SCEP2, SCES) from Saururus chinensis plant material through systematic purification processes including ethanol precipitation and dialysis. This extraction principle allows obtaining pure therapeutic compounds without the side effects associated with conventional IBD medications.
Solution Approach 2:
The patent uses ethanol and other solvents as intermediary substances to separate and purify active polysaccharides from the plant matrix. These intermediaries enable the isolation of therapeutic components while removing unwanted plant materials, providing a clean therapeutic agent free from side effects.
2Ease of operation
If current IBD treatments are used, then symptom relief is achieved, but mucosal production is not restored and tight junction robustness is not improved
Solution Approach 1:
The patent employs preliminary enzymatic treatment with proteases and cellulases before polysaccharide extraction to break down plant proteins and cell walls. This preliminary action facilitates the release and subsequent isolation of active polysaccharides that have demonstrated ability to restore mucosal production and tighten intestinal epithelial junctions.
3Ease of manufacture
If Saururus chinensis extract is prepared using conventional methods, then general extract is obtained, but specific active fractions with therapeutic efficacy are not isolated
Solution Approach 1:
The patent segments the total Saururus chinensis extract into distinct polysaccharide fractions (SCEP1, SCEP2, SCES) based on their molecular weight and solubility characteristics. This segmentation is achieved through controlled ethanol precipitation at different concentrations and dialysis processes, allowing isolation of specific bioactive fractions with proven therapeutic effects on IBD.
Solution Approach 2:
The patent utilizes parameter changes in ethanol concentration (gradual increase from 30% to 100%) and temperature conditions to selectively precipitate different polysaccharide fractions. By carefully controlling these parameters, the patent achieves precise isolation of active fractions while maintaining ease of manufacture through a systematic gradient approach.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solvent fraction of Saururus chinensis effectively inhibits inflammatory cytokines, enhances mucin production, and strengthens intestinal epithelial tight junctions, providing therapeutic benefits for IBD by reducing inflammation and improving intestinal function.
Implementation Method 1
extracting Saururus chinensis with a 50-90 volume % ethanol aqueous solution
Implementation Method 2
enzymatically treating the result of the step S2
Implementation Method 3
adding ethanol to the filtrate of the step S4 to form a precipitate
Data Source
AI summary
The present disclosure relates to a pharmaceutical composition for preventing, treating or ameliorating inflammatory bowel disease, containing, as an active ingredient, a specific solvent fraction obtained from Saururus chinensis; and a preparation method therefor.