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Hezi inhibits Tiebangchui-induced cardiotoxicity and preserves its anti-rheumatoid arthritis effects by regulating the pharmacokinetics of aconitine and deoxyaconitine. | LitMetric

Hezi inhibits Tiebangchui-induced cardiotoxicity and preserves its anti-rheumatoid arthritis effects by regulating the pharmacokinetics of aconitine and deoxyaconitine.

J Ethnopharmacol

State Key Laboratory of Southwestern Chinese Medicine Resources, Innovative Institute of Chinese Medicine and Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, Sichuan, PR China. Electronic address:

Published: February 2023

AI Article Synopsis

Article Abstract

Ethnopharmacological Relevance: Tiebangchui (TBC, dried roots of Aconitum pendulum Busch. and Aconitum flavum Hand.-Mazz.) is a well-known Tibetan medicine for dispelling cold and relieving pain. In China, it is widely used in prevention and treatment of various diseases, such as rheumatoid arthritis (RA), traumatic injury, and fracture. However, its cardiotoxicity and neurotoxicity seriously restrict its clinical application. Traditionally, Hezi (HZ, dry ripe fruit of Terminalia chebula Retz. and Terminalia chebula Retz. var. tomentella Kurt.) is generally used in combination with TBC for the purpose of toxicity reducing and efficacy enhancing, but so far we still can't clearly elucidate the compatibility effect and mechanism of the classical herbal pair.

Aim Of Study: To investigate the compatibility effect and mechanism of TBC co-administered with HZ.

Methods: In the present study, we clarified the cardioprotective role of HZ on the cardiotoxicity induced by TBC. The electrocardiogram, the levels of serum cardiac troponin T (cTnT), the activities of cardiac superoxide dismutase (SOD), malonaldehyde (MDA), and histopathology of heart tissue have been determined in each group. Meanwhile, the anti-RA effect of each group was investigated by paw swelling measurement and histopathological examination of synovial. To explore the underlying mechanism, we performed the pharmacokinetic studies of aconitine (AC) and deoxyaconitine (DE) in TBC group and TBC + HZ group by ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS) system.

Results: TBC co-administered with HZ could significantly inhibit the increased heart rate and the prolonged QTc interval induced by TBC (p < 0.01). And TBC + HZ group had lower levels of serum cTnT, cardiac MDA, and higher levels of cardiac SOD compared with TBC group (p < 0.01). In addition, the combination of TBC and HZ could preserve the anti-RA effect of TBC. Both TBC administration alone and TBC + HZ combination administration could effectively alleviate the paw swelling (p < 0.01). Furthermore, TBC co-administered with HZ could significantly decrease the area under the concentration-time curve (AUC) and maximum concentration (C) of AC and DE comapred with TBC administration alone (p < 0.01 or p < 0.05). Meanwhile, it was observed that the time to reach the peak concentration (T), elimination half-life (t), mean retention time (MRT) of AC and DE in TBC group were significantly higher than those in TBC + HZ group (p < 0.01 or p < 0.05).

Conclusions: TBC co-administered with HZ could reduce TBC-induced cardiotoxicty and preserve its anti-RA efficacy. The underlying mechanism is associated with the change of pharmacokinetic process of AC and DE.

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Source
http://dx.doi.org/10.1016/j.jep.2022.115915DOI Listing

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