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Method and device for establishing mouse chronic constraint stress model

A mouse model, chronic technology, applied in the field of gastric cancer, can solve the problem of lack of mechanism, achieve the effect of changing the activity space, facilitating stress response, and prolonging the use time

Active Publication Date: 2022-06-24
CHENGDE MEDICAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the impact of social and psychological factors on the prognosis of cancer patients has attracted increasing attention. Studies have shown that long-term anxiety, depression and other psychological stress stimulate the body's chronic stress can promote the malignant progression of tumors by acting on β2AR, because plexinA1 and β2-AR Chronic stress is relevant in regulating the malignant progression of gastric cancer, and β2-AR affects the EMT of gastric cancer cells by activating the STAT3 signaling pathway, and plexinAl affects the formation of gastric cancer cells by regulating VEGFR2. In summary, a hypothesis is proposed: in patients with gastric cancer, chronic stress can β2-AR / plexinA1 mediates the JAK-STAT3 pathway to affect the ENT and angiogenesis of Zeng cancer cells, thereby promoting the malignant progression of gastric cancer. Chronic stress is common in cancer patients, and it is accompanied by a significant increase in the level of stress-related hormones In the prior art, chronic stress stimulates the secretion of adrenal hormones and acts on the corresponding receptors in the mouse model, and it is relatively lacking to further explore the mechanism of chronic stress to promote the malignant progression of tumors.

Method used

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  • Method and device for establishing mouse chronic constraint stress model
  • Method and device for establishing mouse chronic constraint stress model
  • Method and device for establishing mouse chronic constraint stress model

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A device for establishing a mouse chronic restraint stress model, comprising a restraint box 1, a first partition 3 is fixedly connected to the left and right sides of the inner wall of the restraint box 1, and the upper surface of the first partition 3 is fixedly connected with multiple a plurality of evenly distributed second partitions 4, the top of the restraint box 1 is provided with a plurality of uniformly distributed first openings, the first partitions 3 are respectively provided with a plurality of evenly distributed second openings, a plurality of second openings The tops of the openings are respectively slidably connected with shielding mechanisms, and a plurality of mouse chronic restraint stress models can be well separated by the second partition 4, so that experiments can be carried out.

[0039] The center of the lower surface of the first partition 3 is fixedly connected with a third partition 5, and the remaining surfaces of the third partition 5 are r...

Embodiment 2

[0042] A device for establishing a mouse chronic restraint stress model, on the basis of the first embodiment, the push mechanism includes a push rod 10, one end of the push rod 10 is fixedly connected to the side wall of the fourth partition 9, and the push rod 10 is The other end is fixedly connected with a push plate 11, the push plate 11 is rotatably connected with a threaded rod 12 through a rotating plate, the other end of the threaded rod 12 is fixedly connected with a first gear 13, the first gear 13 is meshed with a second gear 14, the second gear The inner wall of 14 is fixedly connected with a motor 15 through a coupling, and the motor 15 can well drive the first gear 13 and the second gear 14 to rotate, thereby driving the threaded rod 12 to rotate.

[0043] In addition, the side wall of the motor 15 is fixedly connected to the side of the outer wall of the restraint box 1 , and the upper and lower ends of the side wall of the second gear 14 are respectively slidabl...

Embodiment 3

[0046] A device for establishing a mouse chronic restraint stress model, on the basis of the second embodiment, the shielding mechanism includes a first shielding plate 7, and the lower surface of the first shielding plate 7 is slidably connected to the top of the second through port, and the first shielding plate 7 A first hydraulic rod 6 is fixedly connected to the upper surface of a shielding plate 7 through a receiving rod, and the other end of the first hydraulic rod 6 is fixedly connected to the adjacent second partition plate 4, so that the second partition plate 4 can be used for better space compartmentalized, so that different spatial sizes of restraint stress responses can be tested in different mouse models.

[0047] It should be noted that the space adjustment mechanism includes a telescopic sleeve plate 18, one side of the telescopic sleeve plate 18 is slidably connected to the side wall of the fourth partition plate 9 through the third sliding plate, and one side...

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Abstract

The invention discloses an establishment method and an establishment device of a mouse chronic constraint stress model, relates to the field of gastric cancer, and aims to solve the problem that the stress response of chronic constraint to a mouse model is not clear in the prior art. According to the scheme, the binding device comprises a binding box body, and the left side and the right side of the inner wall of the binding box body are jointly and fixedly connected with a first partition plate. By arranging the motor, the first gear, the second gear and the threaded rod, the activity space of the mouse model can be well changed, so that the activity space of the mouse model is well changed, the stress response of chronic constraint to the mouse model is known, and then a quantifiable guidance strategy is provided for implementing psychological intervention treatment; research is carried out by adopting psychological survey, hormone level detection and various molecular biology methods, the research scheme fully embodies tight connection between the foundation and clinical research on the basis of a solid early stage, and a foundation is laid for discovering observability threatening indexes of malignant progression of gastric cancer.

Description

technical field [0001] The invention relates to the field of gastric cancer, in particular to a method and a device for establishing a chronic restraint stress model in mice. Background technique [0002] Gastric cancer is a major challenge to human health, and its morbidity and mortality ranks second among malignant tumors in my country. At present, the clinical treatment of gastric cancer is mainly surgery combined with radiotherapy and chemotherapy. The influence is gradually recognized, especially experimental studies have confirmed that chronic psychological stress can accelerate tumor growth and promote its malignant progression, which makes the urgency of tumor psychotherapy attract more and more attention. It is unclear. Currently, the clinical practice is only in the stage of general psychological support such as health education for patients, and relatively precise intervention treatment cannot be given. This has become a common problem in the field of oncology and p...

Claims

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Application Information

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IPC IPC(8): A01K67/02
CPCA01K67/02
Inventor 李玉红左彦珍鲁艳杰许倩刘莹程蝶张影彭禹桥庞佳昱王浩
Owner CHENGDE MEDICAL UNIV
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