Apelin–Copeptin Ratio Detection for Early Preeclampsia Prediction

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Solution Overview

Problem

Current methods for detecting preeclampsia are inadequate, leading to delayed diagnosis and increased maternal mortality, with a need for early and reliable predictors to enable timely medical intervention.

Innovation Solution

A method involving the detection of apelin and copeptin levels in bodily samples using assays such as test strips, antibody detection, or mass spectrometry to identify an abnormal ratio, which is predictive of preeclampsia development.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of time

If current detection methods are used, then diagnosis is delayed, but early detection capability is insufficient

Engineering Contradiction:

Improvediagnosis delayVSAvoidpredictor detection accuracy

Core Design Contradiction:

Loss of timeVSMeasurement precision

Solution Approach 1:

The invention segments the detection process by identifying and measuring multiple distinct biochemical markers (copeptin, apelin, and their ratio) separately, then integrating these measurements to achieve early and accurate preeclampsia prediction, resolving the contradiction between early detection timing and measurement precision

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The invention changes the detection parameters by measuring not just individual marker levels but also their ratio (copeptin/apelin), providing a more precise diagnostic criterion that enables early detection while maintaining high accuracy in predicting preeclampsia development

Inventive Principle:

Principle #35Parameter changes

2Reliability

If reliable prediction methods are developed, then maternal mortality is reduced, but current method reliability is insufficient

Engineering Contradiction:

Improvepreeclampsia prediction reliabilityVSAvoiddetection method complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The invention creates a multi-functional detection system that can measure copeptin, apelin, and their ratio using the same assay platform, making the method universally applicable for early preeclampsia prediction while maintaining clinical feasibility and reliability

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The invention uses the copeptin/apelin ratio as an intermediary parameter that mediates between individual marker measurements and the final diagnostic conclusion, enhancing prediction reliability while keeping the overall method complexity manageable through a clear interpretive framework

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

Early detection of preeclampsia through apelin and copeptin levels allows for timely medical intervention, reducing maternal complications and improving patient outcomes.

Implementation Method 1

detecting a level of copeptin in the sample by applying the sample to a copeptin detection assay

Methodology Applied

Scientific EffectAntibody detection:

Implementation Method 2

detecting a level of apelin or a fragment thereof in the sample by applying the sample to an apelin detection assay

Methodology Applied

Scientific EffectAntibody detection:

Data Source

PatentUS20250327817A1Detection of predictors of preeclampsia

Publication Date: 2025.10.23 THE UNIVERSITY OF IOWA RESEARCH

AI summary

This disclosure relates to improved detection of predictors of preeclampsia.