AIM To study the chemical constituents from the root tubers of Stephania kwangsiensis H.S.Lo and their tyrosinase inhibition and insecticidal activities.METHODS The 70％ ethanol extract from root tubers of S.kwangsiensis was isolated and purified by Sephadex LH-20,MCI,ODS,semi-prepative HPLC and HSCCC,then the structures of obtained compounds were identified by physicochemical properties and spectral data.The tyrosinase inhibitory activities were determined by using levodopa as substrate,and the insecticidal activities were evaluated by the control effect of Diaphorina citri.RESULTS Twelve compounds were isolated and identified as tetrahydropalmatine ( 1 ),dehydrocrebanine ( 2 ),crebanine ( 3 ),stephanine ( 4 ),liriodenine ( 5 ),piperumbellactam A ( 6 ),sinoacutine ( 7 ),(+)-salutaridine N-oxide ( 8 ),bisnorargemonine ( 9 ),(+)-corytuberine (10),sebiferine (11) and palmatrubine (12).The IC50 values of compounds 5-7 to tyrosinase were (0.1702±0.0101),(0.7663±0.0331) and (0.5193±0.0075) mg/mL,respectively.The control effects of compounds 2-5,7,8,10-12 against D.citri ranged from ( 19.33±0.57 )％ to ( 77.15±0.45 )％.CONCLUSION Compounds 2,5,6,and 8-12 are isolated from this plant for the first time,6 and 9 are first obtained from genus Stephania.Compounds 5-7 displayed significant tyrosinase inhibition activities.Compounds 7,8 and 10 show strong insecticidal activities.

AIM To study the chemical constituents from the root tubers of Stephania kwangsiensis H.S.Lo and their tyrosinase inhibition and insecticidal activities.METHODS The 70％ ethanol extract from root tubers of S.kwangsiensis was isolated and purified by Sephadex LH-20,MCI,ODS,semi-prepative HPLC and HSCCC,then the structures of obtained compounds were identified by physicochemical properties and spectral data.The tyrosinase inhibitory activities were determined by using levodopa as substrate,and the insecticidal activities were evaluated by the control effect of Diaphorina citri.RESULTS Twelve compounds were isolated and identified as tetrahydropalmatine ( 1 ),dehydrocrebanine ( 2 ),crebanine ( 3 ),stephanine ( 4 ),liriodenine ( 5 ),piperumbellactam A ( 6 ),sinoacutine ( 7 ),(+)-salutaridine N-oxide ( 8 ),bisnorargemonine ( 9 ),(+)-corytuberine (10),sebiferine (11) and palmatrubine (12).The IC50 values of compounds 5-7 to tyrosinase were (0.1702±0.0101),(0.7663±0.0331) and (0.5193±0.0075) mg/mL,respectively.The control effects of compounds 2-5,7,8,10-12 against D.citri ranged from ( 19.33±0.57 )％ to ( 77.15±0.45 )％.CONCLUSION Compounds 2,5,6,and 8-12 are isolated from this plant for the first time,6 and 9 are first obtained from genus Stephania.Compounds 5-7 displayed significant tyrosinase inhibition activities.Compounds 7,8 and 10 show strong insecticidal activities.

This article analyzed the mechanism of Danggui Sini Decoction(DSD) in improving kidney injury caused by blood stasis syndrome(BSS) in rats. Firstly, 32 female SD rats were randomly divided into the following four groups: a normal group and a BSS group, both receiving an equal amount of distilled water by gavage; a normal+DSD group and a BSS+DSD group, both receiving 5.103 g·kg~(-1) DSD orally for a total of 14 days. Daily cold water bath was given to establish the BSS model, and on the 14th day, BSS rats were subcutaneously injected with 0.8 mg·kg~(-1) adrenaline. Normal rats were subjected to the water bath at 37 ℃ and injected with an equal volume of distilled water. After the experiment, 24-hour urine, serum, and kidney samples were collected for metabolomic analysis, biochemical measurements, and hematoxylin-eosin(HE) staining. The study then employed ~1H-NMR metabolomic technology to reveal the metabolic network regulated by DSD in improving BSS-induced kidney injury and used network pharmacology to preliminarily elucidate the key targets of the effectiveness of DSD. Pathological and biochemical analysis showed that DSD intervention significantly reduced inflammation and abnormal levels of blood creatinine, blood urea nitrogen, and urine protein in the kidneys. Metabolomic analysis indicated that DSD attenuated BSS-induced kidney injury primarily by regulating 10 differential metabolites and three major metabolic pathways(taurine and hypotaurine metabolism, citrate cycle, and acetaldehyde and dicarboxylic acid metabolism). Network pharmacology analysis suggested that the protective effect of DSD against BSS-induced kidney injury might be related to two key genes, ATP citrate lyase(ACLY) and nitric oxide synthase 2(NOS2), and two main metabolic pathways, i.e., arginine biosynthesis, and arginine and proline metabolism. This study, from the perspective of network regulation, provides initial insights and evidence into the mechanism of DSD in improving kidney injury induced by BSS, offering a basis for further investigation into the molecular mechanisms underlying its efficacy.
Rats ; Female ; Animals ; Rats, Sprague-Dawley ; Network Pharmacology ; Drugs, Chinese Herbal/chemistry* ; Metabolomics ; Kidney ; Arginine ; Water

Objective:To investigate the correlation between food-specific IgG (sIgG) antibodies and phenotypes of chronic spontaneous urticaria (CSU) .Methods:Serum samples were collected from outpatients with active CSU, symptomatic dermographism (SD) , or acute urticaria (AU) , and healthy controls from 5 third-grade class-A hospitals such as the First Hospital of China Medical University between April 2014 and March 2015. Enzyme-linked immunosorbent assay was conducted to detect serum levels of 90 food-sIgG antibodies and total IgE, Western blot analysis to detect levels of 20 allergen-specific IgE antibodies, and chemiluminescent microparticle immunoassay to detect levels of anti-thyroid peroxidase IgG antibodies and anti-thyroglobulin IgG antibodies. Comparisons of normally distributed quantitative data between two groups and among several groups were performed by t test and one-way analysis of variance, respectively; comparisons of non-normally distributed quantitative data between two groups were performed by Mann-Whitney U test; for comparisons of proportions, chi-square test and Fisher′s exact test were used. Results:A total of 248 patients with CSU, 22 with SD, 15 with AU and 13 healthy controls were recruited. The cut-off level for sIgG positivity was 100 U/ml (at least 2+) , and the positive rate of food-sIgG antibodies was slightly higher in the patients with CSU (176/248, 70.97%) , SD (15/22, 68.18%) and AU (11/15) than in the healthy controls (7/13; χ2 = 1.80, P = 0.615) . Among the 248 CSU patients, the proportion of patients with family history of allergic diseases was significantly higher in the sIgG-positive group (71/176, 40.34%) than in the sIgG-negative group (19/72, 26.39%; χ2 = 4.30, P = 0.042) , while no significant difference was observed in the 1-day urticaria activity score (UASday) between the two groups ( Z = 0.18, P = 0.859) . Totally, 177 CSU patients completed 12- to 40-week treatment; their condition could be completely controlled by second-generation H1-antihistamines, and there was no significant difference in the required dosage of second-generation H1-antihistamines between the sIgG-positive group (128 cases) and sIgG-negative group (49 cases; Z = -1.06, P = 0.298) . Conclusions:The prevalence of family history of allergic diseases was relatively high in food-sIgG-positive patients with CSU. However, food-sIgG could not be used as an indicator to reflect the disease activity of CSU and treatment response.

With the progress of globalization and the improvement of transportation, a public health emergency can spread across country's boundary in a short period of time from its original place to other areas or regions, posing public health threatens. Public health emergencies not only affect human-animal/plant-environmental health, but also have long-term implications for social development, so the public health emergency response has gone beyond general public health and requires an integrated and comprehensive One Health approach. This paper analyzes the problems and shortcomings of China's current public health emergency response system in a view of One Health and put forward the recommendations based on One Health concept on integrality, collaboration, development and sustainability of public health emergency response. These recommendations can be used as reference to further optimize the response system of public health emergencies in China.
Animals ; Humans ; One Health ; Public Health ; Emergencies ; Environmental Health ; China

Objective:A high performance liquid chromatography-photo-diode array（HPLC-PDA） method for the simultaneous determination of the 7 phenolic acids including danshensu，protocatechuic acid，protocatechuic aldehyde，chlorogenic acid，caffeic acid，ferulic acid and rosemary acid in Lycopus lucidus var.hirtus rhizome，analyzing and evaluating the phenolic acids in L.lucidus var.hirtus rhizome collected from different habitats，is reported here. Method:The sample was extracted by ultrasonic with 80% methanol solution，7 kinds of phenolic acids were separated on a CAPCELL PAK C₁₈ column （4.6 mm×250 mm，5 μm） with a mobile phase consisting of methanol-0.02% formic acid aqueous （pH 3.10）by gradient elution，The detection wavelength was at 279，324 nm， the column temperature was 30 ℃ with 20 μL injection volume and the flow rate was 1.0 mL·min^-1. Result:The 7 Phenolic acids had a good linear relationship （r≥0.999 9） within their respective mass concentration ranges，the average recovery was 96.49%-103.45% and the RSD was 0.5%-2.8%，the limit of determination was 0.008-0.046 mg·L^-1 and the limit of quantification was 0.027-0.154 mg·L^-1.The 7 kinds of phenolic acids were all detected in L.lucidus var.hirtus rhizome and the total amount was between 5 811.01 and 11 747.23 µg·g^-1 ， the average amount was 7 421.05 µg·g^-1.The content of 7 phenolic acids was different and the rosemary acid was the highest in all the samples with an average of 7 111.19 µg·g^-1 the ratio to the total phenolic acids was 95.8%.The results of principal component analysis and cluster analysis showed that the quality of L.lucidus var.hirtus rhizome from Heze city in Shandong province was better，followed by Wanzhou district in Chongqing. Conclusion:The method was simple，sensitive，accurate，practical and reliable，and is suitable for the content determination of phenolic acid in L. lucidus var. hirtus rhizome.It is expected to provide a reference for the improvement of quality standard and a new idea for the development and utilization of L.lucidus var.hirtus rhizome.