Effect of San'ao Decoction on ovalbum induced asthmatic mice and expression of TRPV2 in lung / 中国中药杂志

To observe the efficacy of San'ao Decoction(SAD) in diffusing the lung and relieving asthma, and its intervention effect on the expression of transient receptor potential V2(TRPV2) during alleviating asthma, this study replicated an ovalbumin(OVA)-induced asthmatic mice model, and investigated the intervention effect of SAD on the airway inflammation and airway hyperresponsiveness. The regulatory mechanisms of SAD on the mRNA and protein expressions of TRPV2 in lung tissues and the levels of interleukin-4(IL-4),-10(IL-10), nerve growth factor(NGF), prostaglandin D_2(PGD_2) in bronchoalveolar lavage fluid(BALF) were discussed. Compared with the control group, the model group showed typical asthmatic phenotype, the level of eosinophils(EOS) in peripheral blood and BALF as well as the airway hyperresponsiveness were increased(P<0.01), and pathological damage in lung tissue was serious. The mRNA and protein expressions of TRPV2 in lung tissue were increased significantly, while the levels of IL-4, IL-10, NGF and PGD_2 in BALF were elevated(P<0.05,P<0.01). SAD could relieve bronchial asthma manifested as repaired lung patholo-gical changes(P<0.05), reduce the level of EOS in blood and BALF(P<0.05, P<0.01), and improve pulmonary resistance and lung compliance(P<0.05, P<0.01). SAD could also regulate the inflammatory cytokine levels of IL-4, IL-10, NGF, PGD_2 in BALF, and reduce the gene and protein expression of TRPV2 in the lung tissue(P<0.05, P<0.01). It is verified that SAD could reduce the lung inflammation, and improve lung function in asthmatic mice. The regulatory mechanism of SAD on asthma induced by OVA might be related to the regulation of TRPV2 expression and the induced decrease of Th2-related cytokines and neuropeptides, which provides the evidences for the treatment of asthma with SAD.

Research on compatibility of prescriptions including Ginseng Radix et Rhizoma and Trogopterus Dung based on complex network analysis / 中国中药杂志

The applications of prescriptions including Ginseng Radix et Rhizoma and Trogopterus Dung in contemporary literatures from 1949 to 2016 are compiled and the data mining techniques containing scale-free complex network method are utilized to explore its practical characteristics, with comparison between modern and ancient ones. The results indicate that malignant neoplasms, coronary heart disease which present Qi deficiency and blood stasis type are the main diseases treated by prescriptions including Ginseng Radix et Rhizoma and Trogopterus Dung according to the reports during 1949 to 2016. The complex network connection shows that Glycyrrhizae Radixet Rhizoma, Angelicae Sinensis Radix, Astragali Radix, Typhae Pollen, Salviae Miltiorrhizae Radix et Rhizoma are the primary drugs related to Ginseng Radix et Rhizoma and Trogopterus Dung. The next are Paeoniae Radix Alba, Atractylodis Macrocephalae Rhizoma, Persicae Semen, Foria, et al. Carthami Flos, Notoginseng Radix et Rhizoma, Cyperi Rhizoma, Bupleuri Radix are the peripheral ones. Also, Ginseng Radix et Rhizoma-Glycyrrhizae Radixet Rhizoma, Trogopterus Dung-Glycyrrhizae Radixet Rhizoma, Ginseng Radix et Rhizoma-Angelicae Sinensis Radix, Trogopterus Dung-Angelicae Sinensis Radix, Ginseng Radix et Rhizoma-Astragali Radix, Trogopterus Dung-Astragali Radix are the main paired drugs. The paired drugs including Ginseng Radix et Rhizoma-Trogopterus Dung-Glycyrrhizae Radixet Rhizoma, Ginseng Radix et Rhizoma-Trogopterus Dung-Angelicae Sinensis Radix, Ginseng Radix et Rhizoma-Trogopterus Dung-Astragali Radix, Ginseng Radix et Rhizoma-Trogopterus Dung-Typhae Pollen have a higher support degree. The main compatible drugs are different in ancient and modern prescriptions including Ginseng Radix et Rhizoma and Trogopterus Dung. Notoginseng Radix et Rhizoma, Typhae Pollen, Salviae Miltiorrhizae Radix et Rhizoma, Astragali Radix are utilized frequently in modern prescriptions while less used in ancient ones. It is also shown that more attentions are paid to the drugs contributing to invigorating Qi and promoting blood circulation in modern times with comparative results between modern and ancient prescriptions.

Effects of luteolin on two types of hypoxia/reoxygenation injury in H9c2 cardiomyocytes / 中国药学杂志

OBJECTIVE: To investigate and compare the effects of luteolin on H9c2 cardiomyocytes damaged by two types of hypoxia/reoxygenation (H/R) injury, and to ensure its protective action against hypoxia/reoxygenation injury. METHODS: The H9c2 cardiomyocytes were cultured, and H/R injury model were induced by N2 saturation hypoxia chamber or sodium dithionite (Na2S2O4). In both models, the viability of cardiomyocytes, LDH leakage, MDA levels, T-SOD activities, ROS levels in cells, and mitochondrial membrane potential (ΔΨm) changes were assessed to evaluate the effects of luteolin on H/R injury in H9c2 cells. RESULTS: Compared with control, luteolin significantly increased cell viability, T-SOD activity in H9c2 cardiomyocytes on H/R injury, and inhibited LDH leakage, MDA and ROS level, and improved ΔΨm(P<0.05 or P<0.01). CONCLUSION: Luteolin has a protective effect against H/R injury in H9c2 cardiomyocytes, and may effectively sustain the balance between anti-oxidant defense and free radicals.