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Puerarin (1) is a major effective ingredient extracted from the traditional Chinese medicine Ge-gen (Radix Puerariae, RP). Recently, puerarin has been used to treat patients with coronary artery diseases (CAD). However, the mechanisms of puerarin on CAD are still not very clear. In this study, we investigated the role of puerarin on serum nitric oxide (NO) concentration, myocardial endothelial nitric oxide synthase (eNOS) gene expression, the protein expression of eNOS and inducible nitric oxide synthase (iNOS), as well as the level of protein kinase B (Akt/PKB) phosphorylation in rats with myocardial infarction. We found that puerarin (120 mg/kg/day, i.p.) could increase serum nitrite concentration in rat with myocardial ischemia (MI). It also induced the gene expression or activation of eNOS, protein expression of eNOS, and the Akt/PKB phosphorylation. From these results, we suggested that puerarin could increase serum nitric oxide level of rat with myocardial infarction, which should be one of the mechanisms of the therapeutic effect of puerarin on CAD. The increased expression of eNOS and the Akt/PKB pathway may be the underlying mechanism by which puerarin stimulates NO production.

The effect of puerarin on serum nitric oxide concentration and myocardial eNOS expression in rats with myocardial infarction.

Danshu capsule (DSC) is a medicinal compound in traditional Chinese medicine (TCM). It is commonly used for the treatment of acute & chronic cholecystitis as well as choleithiasis. To study its choleretic effect, healthy rats were randomly divided into DSC high (DSCH, 900mg/kg), medium (DSCM, 450mg/kg), and low (DSCL, 225mg/kg) group, Xiaoyan Lidan tablet (XYLDT, 750mg/kg), and saline group. The bile was collected for 1h after 20-minute stabilization as the base level, and at 1h, 2h, 3h, and 4h after drug administration, respectively. Bile volume, total cholesterol, and total bile acid were measured at each time point. The results revealed that DSC significantly stimulated bile secretion, decreased total cholesterol level and increased total bile acid level. Therefore, it had choleretic effects. To identify the active components contributing to its choleretic effects, five major constituents which are menthol (39.33mg/kg), menthone (18.02mg/kg), isomenthone (8.18mg/kg), pluegone (3.31mg/kg), and limonene (4.39mg/kg) were tested on our rat model. The results showed that menthol and limonene could promote bile secretion when compared to DSC treatment (p > 0.05); Menthol, menthol and limonene could significantly decrease total cholesterol level (p<0.05 or p<0.01) as well as increase total bile acid level (p<0.05 or p<0.01); Isomenthone, as a isomer of menthone, existed slightly choleretic effects; Pluegone had no obvious role in bile acid efflux. These findings indicated that the choleretic effects of DSC may be attributed mainly to its three major constituents: menthol, menthone and limonene. 

Research on choleretic effect of menthol, menthone, pluegone, isomenthone, and limonene in DanShu capsule.

The traditional herbal compound Danggui Buxue decoction (DBD), has long been used for the prevention and treatment of cardiovascular diseases, however, the underlying molecular mechanism for its effect remains still unknown. So this study would to investigate the effect of DBD on cardiac damage induced by myocardial infarction (MI) challenge.

Danggui Buxue decoction promotes angiogenesis by up-regulation of VEGFR expressions and down-regulation of sVEGFR expression in myocardial infarction rat.

The aerial parts of Pogostemon cablin (Blanco) Benth. for the treatment of cardiodynia have been documented in Mingyi Bielu of late Han Dynasty, in addition to that the Ca antagonized activities of P. cablin and its critically pharmacological ingredient patchouli alcohol (PA) were reported previously.

Patchouli alcohol isolated from Pogostemon cablin mediates endothelium-independent vasorelaxation by blockade of Ca channels in rat isolated thoracic aorta.

Semen Arecae (SA) is one of the most commonly used Traditional Chinese Medicine. Charred Semen Arecae (CSA) is the processed product of SA. Alkaloids are considered as pharmacological mechanisms of SA and CSA on gastrointestinal motility. Recent studies have shown alkaloids decreased quickly after procession. However, the promoting on gastrointestinal motility were not decreased. Is gastrointestinal motility related to alkaloids of CSA? This study explored the effects of SA, CSA, Semen Arecae-Removal (SA-R), and Charred Semen Arecae-Removal (CSA-R) on gastrointestinal motility, Gastric Inhibitory Polypeptide (GIP), Glucagon Like Peptide-1 (GLP-1), gastric juice and bile in rats.

Is gastrointestinal motility related to alkaloids of Charred Semen Arecae?

Alzheimer's disease (AD) is an age-related neurodegenerative disease that is slowly becoming a global problem. Salvia miltiorrhiza (SM) has a history of thousands of years of use in China. In recent years, SM has been reported to have the effect of improving Alzheimer's disease. However, there is no systematic review of its efficacy and safety yet. Therefore, we propose a systematic review to evaluate the efficacy and safety of SM for AD patients.

Salvia miltiorrhiza improves Alzheimer's disease: A protocol for systematic review and meta-analysis.

Diabetes refers to any group of metabolic diseases characterized by high blood sugar and generally thought to be caused by insufficient production of insulin, impaired response to insulin. Globally, patients with type 2 diabetes account for more than 85% of the total diabetic patients, and due to factors, such as obesity, aging, environment and lifestyle, the incidence of diabetes is rising. Salvia miltiorrhiza (SM) is a medicine used to treat diabetes in China. In recent years, it has been reported that SM has the effect of improving type 2 diabetes. However, there is no systematic review of its efficacy and safety yet. Therefore, we propose a systematic review to evaluate the efficacy and safety of SM for T2D.

Salvia miltiorrhiza improves type 2 diabetes: A protocol for systematic review and meta-analysis.

Adenosine triphosphate (ATP) and its metabolites adenosine diphosphate, adenosine monophosphate, and adenosine in purinergic signaling pathway play important roles in many diseases. Activation of P2 receptors (P2R) channels and subsequent membrane depolarization can induce accumulation of extracellular ATP, and furtherly cause kinds of diseases, such as pain- and immune-related diseases, cardiac dysfunction, and tumorigenesis. Active ingredients of traditional Chinese herbals which exhibit superior pharmacological activities on diversified P2R channels have been considered as an alternative strategy of disease treatment. Experimental evidence of potential ingredients in Chinese herbs targeting P2R and their pharmacological activities were outlined in the study.

Targeting P2 receptors in purinergic signaling: a new strategy of active ingredients in traditional Chinese herbals for diseases treatment.

 Danggui Buxue decoction (DBD), consisting of Angelicae Sinensis Radix (ASR) and Astragali Radix (AR), is a famous prescription with the function of antivasoconstriction. This study intends to probe its mechanisms on the relaxation of the middle cerebral artery (MCA).  Vascular tension of rat MCA was measured using a DMT620 M system. First, the identical series of concentrations of DBD, ASR, and AR were added into resting KCl and U46619 preconstricted MCA. According to the compatibility ratio, their dilatation effects were further investigated on KCl and U46619 preconstricted vessels. Third, four K channel blockers were employed to probe the vasodilator mechanism on KCl-contracted MCA. We finally examined the effects of DBD, ASR, and AR on the vascular tone of U46619-contracted MCA in the presence or absence of Ca.  Data suggested that DBD, ASR, and AR can relax on KCl and U46619 precontracted MCA with no effects on resting vessels. The vasodilator effect of ASR was greater than those of DBD and AR on KCl-contracted MCA. For U46619-contracted MCA, ASR showed a stronger vasodilator effect than DBD and AR at low concentrations, but DBD was stronger than ASR at high concentrations. Amazingly, the vasodilator effect of DBD was stronger than that of AR at all concentrations on two vasoconstrictors which evoked MCA. The vasodilator effect of ASR was superior to that of DBD at a compatibility ratio on KCl-contracted MCA at low concentrations, while being inferior to DBD at high concentrations. However, DBD exceeded AR in vasodilating MCA at all concentrations. For U46619-constricted MCA, DBD, ASR, and AR had almost identical vasodilation. The dilation of DBD and AR on KCl-contracted MCA was independent of K channel blockers. However, ASR may inhibit the K channel opening partially through synergistic interactions with Gli and BaCl. DBD, ASR, and AR may be responsible for inhibiting [Ca], while ASR and AR can also inhibit [Ca].  DBD can relax MCA with no effects on resting vessels. The mechanism may be related to ASR's inhibition of K and K channels. Meanwhile, the inhibition of [Ca] by DBD, ASR, and AR as well as the inhibition of [Ca] by ASR and AR may contribute to dilate MCA.

Anticonstriction Effect of MCA in Rats by Danggui Buxue Decoction.

The associations of frailty with all-cause and cause-specific mortality remain unclear. Therefore, we performed this meta-analysis to fill this gap.

Frailty and risks of all-cause and cause-specific death in community-dwelling adults: a systematic review and meta-analysis.

Inflammation is one of the pathogenesis of frailty, Neutrophil to lymphocyte ratio (NLR) and platelet to lymphocyte ratio (PLR) are newly proposed inflammatory indicators. This study aimed to explore the relationship between NLR, PLR and frailty in elderly inpatient with comorbidity.

Do neutrophil to lymphocyte ratio and platelet to lymphocyte ratio associate with frailty in elderly inpatient with comorbidity?

This study aimed to investigate the psychological stress experienced by frontline medical staff during the Yangbi Earthquake and to understand how coping strategies and social support influence stress responses.

Influence of social support and coping strategies on psychological stress among frontline medical personnel during the Yangbi Earthquake: a cross-sectional analysis.

Danggui Buxue Decoction (DBD), a classic representative prescription of invigorating Qi and producing blood, is used to treat coronary heart disease angina pectoris and vascular injury diseases. Abnormal coronary artery is an important cause of cardiovascular disease. However, the mechanism of DBD dilates coronary arteries is still unclear.

ArticleTotal : 2	Year
Publication title	2024
Publication title	2026

Article	Year
The effect of puerarin on serum nitric oxide concentration and myocardial eNOS expression in rats with myocardial infarction. Journal of Asian natural products research\| PubMed ID: 18348063	2008
Research on choleretic effect of menthol, menthone, pluegone, isomenthone, and limonene in DanShu capsule. International immunopharmacology\| PubMed ID: 25499726	2015
Danggui Buxue decoction promotes angiogenesis by up-regulation of VEGFR expressions and down-regulation of sVEGFR expression in myocardial infarction rat. Journal of the Chinese Medical Association : JCMA\| PubMed ID: 28882731	2018
Patchouli alcohol isolated from Pogostemon cablin mediates endothelium-independent vasorelaxation by blockade of Ca channels in rat isolated thoracic aorta. Journal of ethnopharmacology\| PubMed ID: 28965754	2018
Is gastrointestinal motility related to alkaloids of Charred Semen Arecae? Journal of ethnopharmacology\| PubMed ID: 32320728	2020
Salvia miltiorrhiza improves Alzheimer's disease: A protocol for systematic review and meta-analysis. Medicine\| PubMed ID: 32899026	2020
Salvia miltiorrhiza improves type 2 diabetes: A protocol for systematic review and meta-analysis. Medicine\| PubMed ID: 33578512	2021
Targeting P2 receptors in purinergic signaling: a new strategy of active ingredients in traditional Chinese herbals for diseases treatment. Purinergic signalling\| PubMed ID: 33751327	2021
Anticonstriction Effect of MCA in Rats by Danggui Buxue Decoction. Frontiers in pharmacology\| PubMed ID: 34867357	2021
Frailty and risks of all-cause and cause-specific death in community-dwelling adults: a systematic review and meta-analysis. BMC geriatrics\| PubMed ID: 36056319	2022
Do neutrophil to lymphocyte ratio and platelet to lymphocyte ratio associate with frailty in elderly inpatient with comorbidity? Experimental gerontology\| PubMed ID: 36122594	2022
Influence of social support and coping strategies on psychological stress among frontline medical personnel during the Yangbi Earthquake: a cross-sectional analysis. Frontiers in psychiatry\| PubMed ID: 39398955	2024
Danggui Buxue Decoction and its components dilate coronary artery through activating the inward rectification K channels pathway. Journal of ethnopharmacology\| PubMed ID: 39521101	2024

Peng Yang

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