Application of novobiocin in preparation of drug with function of inhibiting TRPV1 (transient receptor potential cation channel, subfamily V, member 1) expression and transfer
A novobiocin and functional technology, which is used in the field of novobiocin to prepare drugs that inhibit the expression and transport function of TRPV1, and can solve the problems that no research has confirmed the interaction between novobiocin and capsaicin.
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Embodiment 1
[0026] Male SD rats, with a body weight within the range of 250±20g, fasted for 16-18h in advance, fasted without water, and injected intraperitoneally with 3% pentobarbital sodium (12mL·Kg -1 ) anesthetized, cut the abdomen 2.5 cm along the midline of the abdomen, removed 5 cm from the top of the small intestine, and then used the next 10 cm of the small intestine as the jejunum, and the last 10 cm as the ileum. The first 2 cm of the large intestine was removed and the next 6 cm was taken as the colon. Gently wash them with normal saline respectively, place them in a mixed gas (95% O 2 :5%CO 2 ) in ice-bathed Hepes-Tris buffer. Cut 3-4cm of the jejunum intestine, quickly peel off the serosa layer on the serosa side, ensure the operation on ice, and then fix the intestinal mucosa on the diffusion cell, the effective area of the diffusion chamber is 1.78cm 2, The ileum and colon use the same method of operation as the jejunum. Add 7mL test drug solution in the diffusion c...
Embodiment 2
[0029] Male SD rats, with a body weight within the range of 250±20g, fasted for 16-18h in advance, fasted without water, and injected intraperitoneally with 3% pentobarbital sodium (12mL·Kg -1 ) anesthetized, cut the abdomen 2.5 cm along the midline of the abdomen, removed 5 cm from the top of the small intestine, and then used the next 10 cm of the small intestine as the jejunum, and the last 10 cm as the ileum. The first 2 cm of the large intestine was removed and the next 6 cm was taken as the colon. Gently wash them with normal saline respectively, place them in a mixed gas (95% O 2 :5%CO 2 ) in ice-bathed Hepes-Tris buffer. Cut 3-4cm of the jejunum intestine, quickly peel off the serosa layer on the serosa side, ensure the operation on ice, and then fix the intestinal mucosa on the diffusion cell, the effective area of the diffusion chamber is 1.78cm 2 , The ileum and colon use the same method of operation as the jejunum. Add 7mL test drug solution in the diffusion ...
Embodiment 3
[0032] Male SD rats, whose body weight is within the range of 250±20g, were randomly divided into 8 groups, with 4 rats in each group. 10 μM ruthenium red and saline. According to 5mL·kg -1 The test solution of the corresponding concentration was given by intragastric administration twice a day for 14 consecutive days. Rats were sacrificed after gavage on the 15th day, and the jejunum, ileum, and colon were isolated for mRNA and protein extraction and subsequent analysis of TRPV1 in the tissue, respectively.
[0033] RT-PCR was used to measure the mRNA expression of TRPV1. Using the RNA isolation kit (Takara Shuzo, Kyoto, Japan), the total RNA in cells and tissues was extracted and its concentration was determined according to the instructions. then follow Premix Ex Taq TM Reverse transcription was performed according to the instructions of II (Takara Shuzo, Kyoto, Japan). The sequences are as follows: TRPV1 is 5'-CACAGAGTGGACCCAGATACG-3' and 5'-CACTCGAGATAGACATGCCACC-3...
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