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Method for detecting development toxicity of environmental pollutants by whole-mount in-situ hybridization technique

A technology of environmental pollutants and in situ hybridization, which is applied in the direction of biochemical equipment and methods, and microbial measurement/inspection, can solve the problems of uncertainty, inaccuracy, long exposure time, body damage, etc., and shorten the detection cycle Effect

Inactive Publication Date: 2017-01-04
CHONGQING INST OF GREEN & INTELLIGENT TECH CHINESE ACADEMY OF SCI
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AI Technical Summary

Problems solved by technology

However, this method has certain limitations
First of all, the organism is an organic whole. From exposure to the exposure to the body’s response, various organs in the body need to coordinate with each other. When the exposure concentration exceeds the limit of the organism’s tolerance, the body’s damage will appear; secondly, in In daily life, human beings are often exposed to environmental pollutants at low doses for a long period of time. Exposure experiments with physical damage as the endpoint require high exposure concentrations and long exposure times. In this way, when the experimental results are extrapolated to the human body, There will be a lot of uncertainty and inaccuracy

Method used

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  • Method for detecting development toxicity of environmental pollutants by whole-mount in-situ hybridization technique
  • Method for detecting development toxicity of environmental pollutants by whole-mount in-situ hybridization technique
  • Method for detecting development toxicity of environmental pollutants by whole-mount in-situ hybridization technique

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Embodiment 1

[0034] In this example, according to the embryonic blastocyst predetermined fate map (fate map), the zebrafish blastocyst predetermined fate gene notochord mesoderm marker gene ntl is selected as the biomarker gene, and the environmental pollutants (using nano-silver as the Example) the impact on the changes in the transcription and expression of the biomarker gene ntl to evaluate the potential developmental toxicity of environmental pollutants (taking nano-silver as an example) on the early organs and tissues of zebrafish.

[0035] 1. Preparation of RNA probes for hybridization:

[0036] 1. Total RNA extraction: Take about 30 mg of fresh tissue samples of wild-type zebrafish, add 600 μl Trizol to fully grind, lyse at room temperature for 10 minutes, add chloroform, shake and mix well, let stand at room temperature for 10 minutes to extract, centrifuge at 12000 rpm for 15 minutes, absorb the supernatant and add isopropanol The precipitate was collected by centrifugation at 120...

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Abstract

The invention belongs to the technical field of biology, and particularly relates to a method for detecting development toxicity of environmental pollutants by a whole-mount in-situ hybridization technique. The method comprises the following step: detecting the development toxicity of environmental pollutants to zebra fish embryos by a whole-mount in-situ hybridization technique. The method can be used for predicting potential toxic actions of the environmental pollutants on zebra fish organs and tissues, thereby further disclosing the action mode of the environmental pollutants, shortening the detection period, and achieving the goal of early warning in deed.

Description

technical field [0001] The invention belongs to the field of biotechnology, and in particular relates to a method for detecting the developmental toxicity of environmental pollutants by using the overall in situ hybridization technique. Background technique [0002] Zebrafish is an important model organism, and its gene similarity with human genes is as high as about 87%. The experimental results obtained with zebrafish as experimental materials have great reference significance for the human body; therefore, zebrafish is very useful in toxicology research. Widely, especially zebrafish embryos are highly toxically sensitive to chemicals and are able to detect the toxicological effects of very low levels of toxic environmental pollutants. [0003] The application of zebrafish in toxicology has developed rapidly in recent years. In order to identify the toxicity of environmental pollutants, we need to analyze the correlation between zebrafish toxicological endpoints and pollu...

Claims

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Application Information

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IPC IPC(8): C12Q1/68
CPCC12Q1/6804C12Q1/6888C12Q2600/158C12Q2543/10C12Q2563/131
Inventor 裴得胜谢少林陈秋牛阿萍
Owner CHONGQING INST OF GREEN & INTELLIGENT TECH CHINESE ACADEMY OF SCI
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