HDL3 Cholesterol Quantification via Surfactant Specificity

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Solution Overview

Problem

Current methods for quantifying HDL3 cholesterol are labor-intensive, require specialized equipment, and often involve manual operations or interference from other lipoproteins, making them impractical for widespread use.

Innovation Solution

A method using surfactants such as polyoxyethylene polycyclic phenyl ether and polyoxyethylene styrenated phenyl ether to specifically react with HDL3, allowing for accurate quantification of HDL3 cholesterol in a test sample without laborious operations, using an automatic analyzer.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If ultracentrifugation is used to measure HDL3, then measurement precision is improved, but device complexity and operation difficulty increase

Engineering Contradiction:
ImproveHDL3 measurement precisionVSAvoidultracentrifugation equipment
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent introduces a specific surfactant (polyoxyethylene polycyclic phenyl ether or polyoxyethylene styrenated phenyl ether) as an intermediary substance that selectively interacts with HDL3. This surfactant acts as a mediator to enable specific binding and detection of HDL3 without requiring complex ultracentrifugation equipment, thus resolving the contradiction between measurement precision and device complexity

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces the mechanical ultracentrifugation system with a chemical interaction system based on surfactant-HDL3 binding. Instead of using mechanical force and complex separation mechanisms, the invention uses specific chemical affinity between the surfactant and HDL3 to achieve separation and measurement, thereby eliminating the need for expensive ultracentrifugation equipment

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Measurement precision

If HPLC is used to separate HDL2 and HDL3, then measurement precision is improved, but operation time and equipment requirements increase

Engineering Contradiction:
ImproveHDL subfraction measurement precisionVSAvoidoperation time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The patent uses a specific surfactant as an intermediary that selectively binds to HDL3, enabling rapid separation and measurement without requiring time-consuming HPLC procedures. The surfactant-HDL3 complex can be detected directly, significantly reducing operation time while maintaining measurement precision

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent changes the measurement approach from physical separation parameters (used in HPLC) to chemical interaction parameters (surfactant binding). By measuring the binding affinity and concentration of the surfactant-HDL3 complex, the method achieves rapid quantification without the lengthy separation processes required by HPLC

Inventive Principle:
Principle #35Parameter changes

3Ease of operation

If HDL3 precipitation method is used, then ease of operation is improved, but measurement precision and reliability decrease due to interference from other lipoproteins

Engineering Contradiction:
Improveoperation simplicityVSAvoidHDL3 measurement precision
Core Design Contradiction:
Ease of operationVSMeasurement precision

Solution Approach 1:

The patent applies local quality by using a surfactant with specific chemical properties that are selectively attracted to HDL3 while remaining indifferent to other lipoproteins. The surfactant's molecular structure provides specific binding affinity for HDL3, creating a localized interaction that does not interfere with other lipoprotein measurements, thus achieving both ease of operation and high precision

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The surfactant serves as a specific intermediary that mediates the interaction between the measurement system and HDL3. This intermediary provides selective binding to HDL3, allowing the measurement system to distinguish HDL3 from other lipoproteins without requiring complex separation procedures, thereby maintaining both operational simplicity and measurement precision

Inventive Principle:
Principle #24Intermediary (Mediator)

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

Enables specific and efficient quantification of HDL3 cholesterol without the need for ultracentrifugation or extensive pretreatment, allowing for accurate measurement of HDL2 cholesterol by subtracting HDL3 from total HDL cholesterol levels, demonstrating strong correlations with established methods.

Implementation Method 1

allowing a surfactant(s) which specifically react(s) with high-density lipoprotein 3 to react with a test sample and quantifying cholesterol

Methodology Applied
Scientific EffectSurfactant: Surfactant

Data Source

PatentEP2808395B1Method for quantifying cholesterol in high density lipoprotein 3
Publication Date: 2018.07.11 DENKA SEIKEN CO LTD
  • EP2808395B1 patent drawingFigure 1~2
  • EP2808395B1 patent drawingFigure 3~4

AI summary

Disclosed is the provision of a method for quantifying HDL3 in a test sample without requiring a laborious operation. The method for quantifying cholesterol in high-density lipoprotein 3 comprises allowing a surfactant(s) which specifically react(s) with a high-density lipoprotein 3 to react with a test sample and quantifying cholesterol, and the surfactant(s) is(are) at least one selected from the group consisting of polyoxyethylene polycyclic phenyl ether and polyoxyethylene styrenated phenyl ether.