Rehmanniae Radix Preparata (RRP) improves pain sensitization and suppresses PI3K/Akt/TRPV1 signaling pathway in estrogen deficient rats

Bibliographic Details
Title: Rehmanniae Radix Preparata (RRP) improves pain sensitization and suppresses PI3K/Akt/TRPV1 signaling pathway in estrogen deficient rats
Authors: Qiangqiang Jia, Hao Zhang, Bingke Xia, Yage Liu, Xuan Dai, Tianyuan Liu, Shan Wang, Yueyi Zhang, Meixi Lu, Beibei Chen, Ruyuan Zhu, Sihua Gao, Dieter Brὂmme, Xinxiang Wang, Lili Wang, Dongwei Zhang
Source: Journal of Functional Foods, Vol 95, Iss , Pp 105162- (2022)
Publisher Information: Elsevier, 2022.
Publication Year: 2022
Collection: LCC:Nutrition. Foods and food supply
Subject Terms: Rehmanniae Radix Preparata, Estrogen-deficient rats, Pain sensitivity, PI3K/Akt/TRPV1, Bone quality, Nutrition. Foods and food supply, TX341-641
More Details: Rehmanniae Radix Preparata (RRP) has been used to management of osteoporotic pain in traditional Chinese medicine trials. However, how RRP exhibits the anti-nociceptive effect remains largely unknown. To this end, estrogen-deficient rats were orally gavaged with aqueous RRP extracts for 12 weeks. The tail flick latency, Von-Frey and formalin assays were employed to evaluate pain sensitization. The administration of RRP alleviates allodynia and hyperalgesia in estrogen-deficient rats. These alterations were associated with a decrease in the expression of substance P (SP), neurokinin-1 receptor (NK-1R), phospho (p)-PI3K, p-protein kinase B (Akt), and transient receptor potential cation channel subfamily V member 1 (TRPV1) in the spinal cord. In addition, RRP improves bone quality in the rats. These results suggest RRP could attenuate pain sensitization and improve bone quality through regulation of PI3K/Akt/TRPV1 signaling pathway during menopause stages. And RRP is considered a novel source of anti-osteoporotic pain drug candidates.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 1756-4646
Relation: http://www.sciencedirect.com/science/article/pii/S1756464622002328; https://doaj.org/toc/1756-4646
DOI: 10.1016/j.jff.2022.105162
Access URL: https://doaj.org/article/14b1b557bb99496797ddb25bb2ecf45f
Accession Number: edsdoj.14b1b557bb99496797ddb25bb2ecf45f
Database: Directory of Open Access Journals
More Details
ISSN:17564646
DOI:10.1016/j.jff.2022.105162
Published in:Journal of Functional Foods
Language:English