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Blood biomarker for digestive tract tumor, application and detection kit

A technology for biomarkers and gastrointestinal tumors, which is applied in the application field of assisting early diagnosis of gastrointestinal tumors, and can solve problems such as unproven biomarkers for cancer diagnosis.

Pending Publication Date: 2021-09-10
上海顿慧医疗科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Sialic acid has become an auxiliary indicator for the diagnosis of malignant tumors and an indicator for curative effect observation. Although existing studies have proved the changes in the expression levels of fucose and arabinose in tumor tissue or serum, they have not proved that fucose, arabinose, etc. Can sugar, mannose, xylose and other monosaccharides or combinations of monosaccharides be effective biomarkers for cancer diagnosis

Method used

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  • Blood biomarker for digestive tract tumor, application and detection kit
  • Blood biomarker for digestive tract tumor, application and detection kit
  • Blood biomarker for digestive tract tumor, application and detection kit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0093] 1. Detection kit preparation:

[0094] 1. Preparation of standard products:

[0095] 1) Prepare mixed standard solution A:

[0096] The concentrations of 16 kinds of monosaccharides are precisely formulated as follows: mannose 1000.0mg / L, glucose 500.0mg / L, galactose 250mg / L, fucose 10.0mg / L, 1,5-anhydroglucitol 2000.0mg / L, Xylose 100.0mg / L, Rhamnose 20.0mg / L, Arabinose 20.0mg / L, Glucosamine Hydrochloride 500.0mg / L, Galactosamine Hydrochloride 500.0mg / L, Glucuronic Acid 200.0mg / L , 100.0mg / L galacturonic acid, 50.0mg / L N-acetylglucosamine, 500.0mg / L N-acetylgalactosamine, 1000.0mg / L sialic acid, 100.0mg / L iduronic acid liquid;

[0097] Prepare standard curve calibration points:

[0098] Prepare 9 standard curve calibration points (std1~std9) with blank plasma matrix (4% bovine serum albumin in PBS solution)

[0099] std9: Pipette 150 μL of mixed standard solution A and dilute to 225 μL with deionized water;

[0100] std8: Pipette 50 μL of mixed standard solution A...

Embodiment 2

[0142] 1. Experimental materials and methods

[0143] 1.1 Acquisition of blood reagents

[0144] The sampling of all blood reagents was carried out under the procedures approved by the Clinical Trial Review Committee of Zhongshan Hospital. The reagent for a cancer patient is obtained from a person diagnosed as a patient by imaging diagnostic methods and cytopathological methods.

[0145]The plasma reagents of 60 patients with liver cancer and 76 people in the control group, 38 people with colorectal cancer, 41 people with gastric cancer and 35 normal people were used for the training group sample research on the search for markers and the diagnostic ability of markers . In the later stage, 50 cases of serum reagents from liver cancer patients and 50 normal people were obtained respectively, plasma reagents from 27 colorectal cancer patients, 36 gastric cancer patients and 35 normal people were used for verification test experiments. The diagnostic ability of the experimenta...

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Abstract

The present invention provides a blood biomarker capable of being applied to detection or diagnosis of gastrointestinal tumors, such as liver cancer, gastric cancer and colorectal cancer, and a kit for the detection or diagnosis of these gastrointestinal tumors. The blood biomarker disclosed by the invention can be used for early diagnosis of gastrointestinal tumors, and has the advantages of high specificity and high sensitivity, so that the blood biomarker has important application value.

Description

technical field [0001] The present invention relates to the field of biotechnology. Specifically, the present invention relates to a combination of blood biomarkers for gastrointestinal tumors, a kit for detecting the combination of markers, and its application in assisting early diagnosis of gastrointestinal tumors. Background technique [0002] According to the latest global cancer burden report in JAMA Oncology, a sub-journal of the American Medical Association, the cancers that cause the greatest loss of life in the world are cancers of the trachea, bronchus and lungs, liver cancer, stomach cancer, colorectal cancer and breast cancer. The incidence trend in China is basically similar to that in the world. The highest cancer mortality rates in China are still cancers of the trachea, bronchi, and lung, and the highest overall mortality rates are liver cancer, gastric cancer, esophageal cancer, and colorectal cancer. Among them, gastric cancer, colorectal cancer and liver ...

Claims

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Application Information

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IPC IPC(8): G01N30/02G01N30/04G01N30/86
CPCG01N30/02G01N30/04G01N30/8675G01N2030/045
Inventor 张曦郭玮温冬陈智李基段昕岑
Owner 上海顿慧医疗科技发展有限公司