Chitosan Nail Lacquer Permeation for Inflammatory Disease Treatment
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Solution Overview
Problem
Current treatments for nail psoriasis and lichen planus require occlusive medications, which are bothersome, have systemic side effects, and are not suitable for chronic use, especially in children, and there is a need for effective, safe, and simple-to-use therapeutic agents.
Innovation Solution
Chitosan derivatives, such as water-soluble hydroxyalkyl chitosan, are used in nail lacquers to permeate keratin structures, reduce inflammation, and promote healthy nail growth, decreasing fragility, pain, and pitting, and can be combined with other active agents for enhanced efficacy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If occlusive medications are used to treat nail psoriasis, then therapeutic efficacy is improved, but patient comfort and safety deteriorate due to bothersome application and systemic side effects
Solution Approach 1:
The patent changes the physical-chemical parameters of the treatment formulation by using water-soluble chitosan derivatives instead of traditional occlusive medications. This parameter change allows the active ingredients to penetrate the nail plate without requiring occlusive dressings, thereby maintaining therapeutic efficacy while eliminating the bothersome application process and reducing systemic absorption
Solution Approach 2:
The invention extracts and removes the occlusive component from the treatment system. By using water-soluble chitosan derivatives that can penetrate the nail plate on their own, the patent eliminates the need for occlusive medications that cause patient discomfort and systemic side effects, while still delivering effective treatment
2Reliability
If occlusive medications are used for nail psoriasis treatment, then therapeutic effect is improved, but safety deteriorates due to systemic side effects
Solution Approach 1:
Water-soluble chitosan derivatives serve as an intermediary carrier that facilitates the delivery of active ingredients through the nail plate. This intermediary enables targeted local treatment without requiring occlusive medications that would force systemic absorption, thereby maintaining therapeutic effect while eliminating harmful systemic side effects
Solution Approach 2:
The invention extracts and removes the occlusive component from the treatment system. By using water-soluble chitosan derivatives that can penetrate the nail plate on their own, the patent eliminates the need for occlusive medications that cause patient discomfort and systemic side effects, while still delivering effective treatment
3Reliability
If traditional topical therapies are applied to the base of the nail, then nail fold psoriasis is treated, but penetration to the matrix is limited
Solution Approach 1:
The patent changes the penetration parameters by using water-soluble chitosan derivatives with specific molecular weight and solubility characteristics. These parameter changes enable the formulation to penetrate through the nail plate to reach the matrix, overcoming the limitation of traditional topical therapies that only treat the nail fold surface
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 chitosan-based nail lacquers significantly improve nail dystrophy by reducing fragility, pain, and pitting, improving cosmetic appearance, and can be safely applied chronically without occlusive medication, as demonstrated in clinical studies.
Implementation Method 1
Chitosan derivatives, such as water-soluble hydroxyalkyl chitosan, are used in nail lacquers to permeate keratin structures
Data Source
Figure 1
AI summary
Chitosan-based nail formulations are useful to treat nail inflammatory diseases like psoriasis, atopic dermatitis and lichen planus. The chitosan is normally in the form of an amino-polysaccharide derivative, preferably water soluble, such as hydroxypropyl chitosan. The formulation may be a nail lacquer, a spray, a cream, an ointment, a gel, a lotion or a foam and may have a content in chitosan, chitosan derivative or a salt thereof from 0.1 to 25 wt.% with respect to the total weight of the formulation.