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Prediction model for early accurate detection of preeclampsia

A pre-eclampsia and prediction model technology, applied in the direction of microbial determination/inspection, biochemical equipment and methods, etc., can solve the problem of insufficient prediction accuracy, unable to fully reflect the physiological changes of pre-eclampsia, and unsatisfactory results, etc. problem, to achieve the effect of good application prospects

Active Publication Date: 2019-10-08
GUANGZHOU DARUI BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Benefiting from the discovery of the above high-risk factors, different research groups around the world have reported a series of prediction methods for preeclampsia based on physiological and biochemical indicators, but most of these methods have not been validated and evaluated using independent pregnant data, and a few of them have been validated and evaluated. method, the results are not satisfactory
This may be due to the fact that these physiological and biochemical indicators are affected by various physiological factors, and their correlation with preeclampsia is not strong enough to fully reflect the physiological changes brought about by preeclampsia, resulting in insufficient prediction accuracy

Method used

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  • Prediction model for early accurate detection of preeclampsia
  • Prediction model for early accurate detection of preeclampsia
  • Prediction model for early accurate detection of preeclampsia

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Example 1 Model method for predicting preeclampsia based on peripheral blood cell-free DNA

[0046] The method for predicting preeclampsia based on free DNA in peripheral blood of the present invention is as follows: compare the sequencing results of free DNA in peripheral blood with the genome sequence map, and then calculate the DNA fragments from the transcription start site region of the gene to be tested in the same sample Quantity, corrected according to the total number of DNA sequences, after normalizing the abundance of free DNA, using machine learning algorithms, through the optimal combination of different differential genes, to calculate and output the prediction results of preeclampsia in pregnant women to be tested, which can effectively predict Onset of preeclampsia.

[0047] Specifically, the method steps are as follows:

[0048] Step 1: Determine where the DNA fragments in the plasma come from on the chromosomes

[0049]A control study was conducted o...

Embodiment 2

[0079] Embodiment 2 sample detection example

[0080] 1. Experimental sample:

[0081] The training group included 60 samples of preeclampsia and 378 healthy controls;

[0082] The validation set included 44 samples of preeclampsia and 162 healthy controls.

[0083] According to the method operation of embodiment 1. Accuracy, sensitivity and specificity of statistical calculation methods.

[0084] 2. The results show that the method model of the present invention can effectively judge preeclampsia patients before the early onset in the training group and the verification group (table 4 and figure 2 ).

[0085] Table 4

[0086]

[0087] Among them, the calculation result example is as follows:

[0088] Sample 1 (pre-onset sample from a pregnant woman with confirmed preeclampsia):

[0089] logit(Y)=–0.655–1.146×NFKB2+1.350×EHBP1L1–1.371×AMOTL1–0.784×VSIG10–1.047×USP10–1.226×ZSWIM4+1.242×ZNF565–0.983×BZW1+0.761×ATP6V1E2+1.842×3CDX1

[0090] Y=0.608

[0091] If the sa...

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Abstract

The invention discloses a prediction model for early accurate detection of preeclampsia. Through research, it is found that the distribution situation of free DNA in peripheral blood in the region ofa gene transcription start site can reflect the physiological state of pregnant women and fetuses, on the basis that the abundance of free DNA in serum in the region of the gene transcription start site is significantly different between preeclampsia patients and healthy pregnant women, the homogeneity correction is carried out on the abundance of the free DNA, and then by using a machine learningalgorithm and through the optimal combination of different genes, the onset of the preeclampsia can be effectively predicted. Therefore, the screening prediction model of the preeclampsia based on prediction of the free DNA in the peripheral blood and the optimal drone gene combination are constructed, the onset of the preeclampsia can be predicted before preeclampsia clinical symptoms appear, and the model is a relatively noninvasive, economic and convenient method to predict the preeclampsia in the early stage, and has good application prospects in the development of preeclampsia predictionand screening products.

Description

technical field [0001] The invention belongs to the technical field of disease detection products. More specifically, it relates to a predictive model for early and accurate detection of preeclampsia. Background technique [0002] Preeclampsia (preeclampsia), also known as preeclampsia, is a common multisystem disease during pregnancy, with an incidence of about 3-8%. The main features of pre-eclampsia are high blood pressure and proteinuria in pregnant women. Severe cases are accompanied by multiple organ damage or functional failure. In severe cases, pregnant women may suffer from convulsions, coma, and even death, accounting for about 10% of the direct or indirect causes of maternal death. 15%. Although the cause of preeclampsia is not clear, and there is no effective treatment except for termination of pregnancy, early detection and timely intervention can effectively reduce the harm of related complications to pregnant women, so as to effectively prevent pregnant wome...

Claims

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Application Information

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IPC IPC(8): C12Q1/6883C12Q1/6869
CPCC12Q1/6883C12Q1/6869C12Q2600/158C12Q2535/122C12Q2537/165
Inventor 吴英松李明郭智伟梁志坤韩博炜欧阳国军
Owner GUANGZHOU DARUI BIOTECH
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