Dried herb of Delphinium brunonianum Royle (Ranunculaceae) has long been used under the herbal name "Xiaguobei" (Delphinii Brunoniani Herba) in traditional Tibetan medicine and prescribed for the treatment of influenza, itchy skin rash and snake bites. In order to find a useful and convenient method for the identification of microscopic features, the technique of fluorescence microscopy was applied to authenticate "Xiaguobei" of Tibet. The transverse sections of stem and leaf, as well as the powder of "Xiaguobei" were observed to seek for typical microscopic features by normal light and fluorescence microscopy. A style-like, single-cell glandular hair containing yellow secretions on the leaf, young stem and sepal of "Xiaguobei" was found. Under the fluorescence microscope, the xylem and pericycle fiber group emitted significant fluorescence. This work indicated that fluorescence microscopy could be an useful additional method for the authentication work. Without the traditional dyeing methods, the main microscopic features could be easily found by fluorescence microscopy. The results provided reliable references for the authentication of "Xiaguobei".

OBJECTIVE：To study the anti-oxidation and an ti-hypoxia effect of Yuanshen granule on normal mice. METHODS ： Totally 800 mice were randomly divided into blank control group ，Yuanshen granule low-dose ，middle-dose and high-dose groups （10，20，40 g/kg）and Hongjingtian oral liquid group （positive control ，2 mL/kg），with 160 mice in each group. Administration groups were given relevant medicine intragastrically ，once a day ，for consecutive 30 d. Blank control group was given constant volume of normal saline by the same method. At 1st，3rd，7th，14th and 30th day after administration ，8 mice in each group at each time point were randomly selected for anoxia tolerance test under normobaric pressure and decompression ；the contents of MDA and SOD in myocardium and cerebral tissue were measured ；the hemolysis effect of red blood cell induced by H 2O2 was investigated. RESULTS ：Compared with blank control group ，the survival time of anoxia tolerance under normobaric pressure and under decompression （after 7 days of administration ）were prolonged significantly in Yuanshen granule groups （P＜0.05）. The contents of MDA in myocardium and cerebral tissue （after 3 or 7 days of administration ；after 3，7 or 14 days of administration ） were significantly decreased （P＜0.05），and the contents of SOD （after 7，14 or 30 days of administration ；after 7 days of administration）were increased significantly （P＜0.05）；the erythrocyte hemolysis rate （after 3 or 7 days of administration ）was significantly decreased （P＜0.05）. At some time points ，the improvement effect of the above indexes in the Yuanshen granule middle-dose and high-dose groups was significantly better than that of Hongjingtian oral liquid group （P＜0.05）. CONCLUSIONS ： Yuanshen granule can effectively prolong the hypoxia tolerance survival time of normal mice ，it has anti-oxidant and anti-hypoxia effects on normal mice ，and the effect of Yuanshen granule middle-dose and high-dose groups is better than that of Hongjingtian oral liquid group.

OBJECTIVE: To investigate how the National Health Commission of China (NHCC)-recommended Chinese medicines (CMs) modulate the major maladjustments of coronavirus disease 2019 (COVID-19), particularly the clinically observed complications and comorbidities. METHODS: By focusing on the potent targets in common with the conventional medicines, we investigated the mechanisms of 11 NHCC-recommended CMs in the modulation of the major COVID-19 pathophysiology (hyperinflammations, viral replication), complications (pain, headache) and comorbidities (hypertension, obesity, diabetes). The constituent herbs of these CMs and their chemical ingredients were from the Traditional Chinese Medicine Information Database. The experimentally-determined targets and the activity values of the chemical ingredients of these CMs were from the Natural Product Activity and Species Source Database. The approved and clinical trial drugs against these targets were searched from the Therapeutic Target Database and DrugBank Database. Pathways of the targets was obtained from Kyoto Encyclopedia of Genes and Genomes and additional literature search. RESULTS: Overall, 9 CMs modulated 6 targets discovered by the COVID-19 target discovery studies, 8 and 11 CMs modulated 8 and 6 targets of the approved or clinical trial drugs for the treatment of the major COVID-19 complications and comorbidities, respectively. CONCLUSION The coordinated actions of each NHCC-recommended CM against a few targets of the major COVID-19 pathophysiology, complications and comorbidities, partly have common mechanisms with the conventional medicines.
COVID-19/physiopathology* ; Comorbidity ; Drugs, Chinese Herbal/therapeutic use* ; Humans ; Medicine ; Medicine, Chinese Traditional ; SARS-CoV-2