Dioscoreaceae Extract for Peripheral Neuropathy Treatment

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Solution Overview

Problem

Current treatments for peripheral neuropathy are largely symptomatic and lack fundamental remedies, with existing therapies such as recombinant human nerve growth factor being unsatisfactory in safety and efficacy.

Innovation Solution

An extract of the Dioscoreaceae family, specifically Dioscorea nipponica, Dioscorea quinqueoloba, and Dioscorea tokoro, is used to treat peripheral neuropathy through an extraction process with solvents like methanol and ethanol, resulting in a compound that induces endogenous nerve growth factor, promoting neurite outgrowth and nerve protection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If recombinant human nerve growth factor is used to treat peripheral neuropathy, then nerve growth and protection are improved, but safety and efficacy are worsened

Engineering Contradiction:
Improvetherapeutic efficacyVSAvoidsafety issues
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent uses Dioscoreaceae extract as an intermediary substance that indirectly promotes nerve growth by stimulating endogenous NGF production rather than administering recombinant NGF directly. This mediator approach avoids the safety issues of recombinant proteins while achieving the desired therapeutic effect through natural plant compounds

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The treatment leverages the body's own nerve growth factor production capabilities by using Dioscoreaceae extract to stimulate endogenous NGF synthesis. This self-service approach allows the patient's body to produce and regulate its own growth factor, avoiding the safety and efficacy problems associated with external recombinant protein administration

Inventive Principle:
Principle #25Self-service

2Ease of operation

If symptomatic therapy drugs are used for peripheral neuropathy, then symptom management is improved, but fundamental treatment is worsened

Engineering Contradiction:
Improvesymptom reliefVSAvoidfundamental cure
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The Dioscoreaceae extract acts preliminarily to address the root cause of neuropathy by promoting nerve regeneration and protecting neurons from further damage. This preliminary action on the fundamental level precedes and supports subsequent symptom management, unlike conventional therapy that only addresses symptoms after they manifest

Inventive Principle:
Principle #10Preliminary action

3Ease of operation

If oral administration is used for neuropathy treatment, then patient compliance is improved, but delivery efficiency is worsened

Engineering Contradiction:
Improvepatient complianceVSAvoiddrug delivery efficiency
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The patent optimizes the chemical parameters of the Dioscoreaceae extract to enhance its oral bioavailability. By modifying extraction methods and identifying specific active compounds with appropriate molecular properties, the extract achieves sufficient absorption and effectiveness through oral administration, overcoming the traditional trade-off between administration route convenience and delivery efficiency

Inventive Principle:
Principle #35Parameter changes

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 extract and isolated compound effectively increase nerve growth factor levels, protect nerves, and improve transmission speed, providing a therapeutic benefit for peripheral neuropathy, including diabetic neuropathy, with oral administration for improved patient compliance.

Implementation Method 1

An extract of the family Dioscoreaceae and a compound isolated from the extract induces an endogenous nerve growth factor in an organism

Methodology Applied
Scientific EffectNeurotrophic factor induction:

Data Source

PatentEP1942920B1Extract of the family dioscoreaceae and composition for preventing or treating peripheral neuropathy comprising the same
Publication Date: 2017.04.26 UNIVERSITY INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
  • EP1942920B1 patent drawingFigure 1
  • EP1942920B1 patent drawingFigure 2~3
  • EP1942920B1 patent drawingFigure 4~5

AI summary

An extract of the family Dioscoreaceae useful for preventing or treating the peripheral neuropathy; and a pharmaceutical composition or food composition comprising the extract are provided. In addition, a pharmaceutical composition or food composition useful for preventing or treating the peripheral neuropathy comprising a compound isolated from the extract of the family Dioscoreaceae is provided.