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Promethazine inhibits neuronal apoptosis via PI3K/Akt signaling pathway in rats with cerebral infarction.
Eur Rev Med Pharmacol Sci. 2019 Aug; 23(3 Suppl):126-134.ER

Abstract

OBJECTIVE

To study the effect of promethazine on neuronal apoptosis in rats with cerebral infarction (CI) through the phosphatidylinositol 3-hydroxy kinase/protein kinase B (PI3K/Akt) signaling pathway.

MATERIALS AND METHODS

A total of 36 Sprague-Dawley rats were randomly divided into the sham group (n=12), model group (n=12), and promethazine group (n=12). The external carotid artery was only exposed in the model group, and the ischemia-reperfusion model after CI was established using the suture method in the other two groups. After modeling, the normal saline was intraperitoneally injected in the sham group and model group, while promethazine was intraperitoneally injected in the promethazine group. The rats were sampled after 1 week of intervention. The neurological deficits of rats were evaluated using the Zea-Longa score, and the cognitive function, the spatial learning, and memory of rats were detected via the water maze test. Moreover, the expressions of B-cell lymphoma-2 (Bcl-2) and Bcl-2 associated X protein (Bax) in brain tissues were detected via immunohistochemistry, and the relative protein expressions of PI3K p85, PI3K p110, and p-Akt were detected via Western blotting. The mRNA expressions of Bax and Bcl-2 were detected via quantitative Polymerase Chain Reaction (qPCR), and the apoptosis was detected via terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling (TUNEL) assay.

RESULTS

The Zea-Longa score was significantly increased in the model group and promethazine group compared with that in the sham group (p<0.05), while it significantly declined in the promethazine group compared with that in the model group (p<0.05). The escape latency was significantly prolonged and the times of crossing platform were significantly reduced in the model group and promethazine group compared with those in the sham group (p<0.05), while the escape latency was significantly shortened and the times of crossing platform were significantly increased in the promethazine group compared with those in the model group (p<0.05). Compared with those in the sham group, the positive expression of Bax was significantly increased, while the positive expression of Bcl-2 was remarkably decreased in the model group and promethazine group (p<0.05). Compared with those in the model group, the positive expression of Bax was significantly decreased, while the positive expression of Bcl-2 was remarkably increased in the promethazine group (p<0.05). Besides, the model group and promethazine group had evidently higher relative protein expressions of PI3K p85, PI3K p110, and p-Akt than the sham group (p<0.05), while the promethazine group also had evidently higher relative protein expressions of PI3K p85, PI3K p110, and p-Akt than the model group (p<0.05). Compared with the sham group, model group, and promethazine group had remarkably increased relative mRNA expression of Bax, and remarkably decreased relative mRNA expression of Bcl-2 (p<0.05). Compared with those in the model group, the relative mRNA expression of Bax was remarkably decreased, while the relative mRNA expression of Bcl-2 was remarkably increased in the promethazine group (p<0.05). Finally, the apoptosis rate was significantly higher in the model group and promethazine group than that in the sham group (p<0.05), while it was significantly lower in the promethazine group than that in the model group (p<0.05).

CONCLUSIONS

Promethazine inhibits neuronal apoptosis in CI rats by upregulating the PI3K/Akt signaling pathway, thereby exerting a protective effect.

Authors+Show Affiliations

Department of Critical Care Medicine, Qilu Hospital of Shandong University, Jinan, China. dingshifang@sdu.edu.cn.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31389591

Citation

Pan, X-D, et al. "Promethazine Inhibits Neuronal Apoptosis Via PI3K/Akt Signaling Pathway in Rats With Cerebral Infarction." European Review for Medical and Pharmacological Sciences, vol. 23, no. 3 Suppl, 2019, pp. 126-134.
Pan XD, Chen XL, Ding SF, et al. Promethazine inhibits neuronal apoptosis via PI3K/Akt signaling pathway in rats with cerebral infarction. Eur Rev Med Pharmacol Sci. 2019;23(3 Suppl):126-134.
Pan, X. D., Chen, X. L., Ding, S. F., Kou, D., Hu, H. L., & Li, L. (2019). Promethazine inhibits neuronal apoptosis via PI3K/Akt signaling pathway in rats with cerebral infarction. European Review for Medical and Pharmacological Sciences, 23(3 Suppl), 126-134. https://doi.org/10.26355/eurrev_201908_18639
Pan XD, et al. Promethazine Inhibits Neuronal Apoptosis Via PI3K/Akt Signaling Pathway in Rats With Cerebral Infarction. Eur Rev Med Pharmacol Sci. 2019;23(3 Suppl):126-134. PubMed PMID: 31389591.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Promethazine inhibits neuronal apoptosis via PI3K/Akt signaling pathway in rats with cerebral infarction. AU - Pan,X-D, AU - Chen,X-L, AU - Ding,S-F, AU - Kou,D, AU - Hu,H-L, AU - Li,L, PY - 2019/8/8/entrez PY - 2019/8/8/pubmed PY - 2020/9/5/medline SP - 126 EP - 134 JF - European review for medical and pharmacological sciences JO - Eur Rev Med Pharmacol Sci VL - 23 IS - 3 Suppl N2 - OBJECTIVE: To study the effect of promethazine on neuronal apoptosis in rats with cerebral infarction (CI) through the phosphatidylinositol 3-hydroxy kinase/protein kinase B (PI3K/Akt) signaling pathway. MATERIALS AND METHODS: A total of 36 Sprague-Dawley rats were randomly divided into the sham group (n=12), model group (n=12), and promethazine group (n=12). The external carotid artery was only exposed in the model group, and the ischemia-reperfusion model after CI was established using the suture method in the other two groups. After modeling, the normal saline was intraperitoneally injected in the sham group and model group, while promethazine was intraperitoneally injected in the promethazine group. The rats were sampled after 1 week of intervention. The neurological deficits of rats were evaluated using the Zea-Longa score, and the cognitive function, the spatial learning, and memory of rats were detected via the water maze test. Moreover, the expressions of B-cell lymphoma-2 (Bcl-2) and Bcl-2 associated X protein (Bax) in brain tissues were detected via immunohistochemistry, and the relative protein expressions of PI3K p85, PI3K p110, and p-Akt were detected via Western blotting. The mRNA expressions of Bax and Bcl-2 were detected via quantitative Polymerase Chain Reaction (qPCR), and the apoptosis was detected via terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling (TUNEL) assay. RESULTS: The Zea-Longa score was significantly increased in the model group and promethazine group compared with that in the sham group (p<0.05), while it significantly declined in the promethazine group compared with that in the model group (p<0.05). The escape latency was significantly prolonged and the times of crossing platform were significantly reduced in the model group and promethazine group compared with those in the sham group (p<0.05), while the escape latency was significantly shortened and the times of crossing platform were significantly increased in the promethazine group compared with those in the model group (p<0.05). Compared with those in the sham group, the positive expression of Bax was significantly increased, while the positive expression of Bcl-2 was remarkably decreased in the model group and promethazine group (p<0.05). Compared with those in the model group, the positive expression of Bax was significantly decreased, while the positive expression of Bcl-2 was remarkably increased in the promethazine group (p<0.05). Besides, the model group and promethazine group had evidently higher relative protein expressions of PI3K p85, PI3K p110, and p-Akt than the sham group (p<0.05), while the promethazine group also had evidently higher relative protein expressions of PI3K p85, PI3K p110, and p-Akt than the model group (p<0.05). Compared with the sham group, model group, and promethazine group had remarkably increased relative mRNA expression of Bax, and remarkably decreased relative mRNA expression of Bcl-2 (p<0.05). Compared with those in the model group, the relative mRNA expression of Bax was remarkably decreased, while the relative mRNA expression of Bcl-2 was remarkably increased in the promethazine group (p<0.05). Finally, the apoptosis rate was significantly higher in the model group and promethazine group than that in the sham group (p<0.05), while it was significantly lower in the promethazine group than that in the model group (p<0.05). CONCLUSIONS: Promethazine inhibits neuronal apoptosis in CI rats by upregulating the PI3K/Akt signaling pathway, thereby exerting a protective effect. SN - 2284-0729 UR - https://www.unboundmedicine.com/medline/citation/31389591/Promethazine_inhibits_neuronal_apoptosis_via_PI3K/Akt_signaling_pathway_in_rats_with_cerebral_infarction_ L2 - https://www.europeanreview.org/article/18639 DB - PRIME DP - Unbound Medicine ER -