The microvascutature of the adrenal medulla in the rats and mice were studied by scanning electron microscopy of vascular replicas.There are portal venules between the adrenal cortex and medulla,which are the side branches of the collecting venules of the adrenal cortex and break into capillaries at the adrenal medulla.The adrenal medulla in mice is mainly supplied by these portal venules,and in a rat adrenal medulla,there are also 5—8 medullar arterioles besides the portal venules.Ring-like constrictions appear to be the characters of sphincter at the ending parts of the portal venules,the branches of the medullar arterioles,the collecting venules,and the medullar venules which drain the medullar capillaries as well.The authors believe that the adrenal cortex controls the medulla by the way of the portal venules.

Objective To study the chemical constituents of the EtOAc soluble fraction obtained from the stems and branches of Euonymus alatus with anti-myocardial ischemic effect. Methods Chemical constituents were isolated and purified by solvent extraction together with various chromatographic techniques, and the structures were identified by physicochemical properties and spectral analyses. ResultsFive compounds, 1-[3-?-D-glucopyranosyloxy)-4, 5-dihydroxyphenyl]-ethanone (Ⅰ), phenethyl alcohol 8-O-?-D-glucopyranosyl-(1→2)-?-D-glucopyranoside (Ⅱ), eugenyl-O-?-D-glucopyranoside (Ⅲ), hyperin (Ⅳ), and hesperidin (Ⅴ) were isolated. Conclusion Compound Ⅰ is determined as a new compound named guijianyuside. Compounds Ⅱ and Ⅲ are isolated from this plant for the first time.

Objective To explore the feasibility of somatosensory evoked potentials (SEP) evaluating Tourette syndrome, based on the theory of SEP evaluating sensory-motor cortical function. Methods 33 cases of Tourette syndrome in our hospital from March 2014 to April 2015 were as the experiment group and 30 healthy participants were as the normal control group. Both groups were evaluated with Yale Global Tic Severity Scale (YGTSS) and SEP. Results There was no significant difference in N20 leak latency and leak-leak amplitude of SEP between 2 groups (P>0.05). The P22 leak latency prolonged (t=2.356, P<0.05) and the leak-leak amplitude decreased (t=2.507, P<0.05) in the experiment group compared with the normal control group. The YGTSS score was higher in the experiment group than in the normal control group (t=3.012, P<0.01). The P22 leak latency was positively (r=0.402, P<0.001), and the P22 leak-leak amplitude was negatively (r=-0.180, P<0.001) correlated with YGTSS score. Conclusion Children with Tourette syndrome are disordered in inhibiting sensory or mo-tor impulse through cortex-striatum-thalamus-cortex regulation circuit. SEP is considered as the objective indicator of patients with Tourette syndrome.

This study was aimed to optimize the purification technology for Sambucus williamsii Hance. With the morroniside as a marker, the purification technology for Sambucus williamsii Hance was optimized by different types of macroporous resin. The results showed that the optimum purification technology was that, the extract of less than 1:250 (morroniside:resin) was adsorbed and the AB-8 resin was washed with distilled water, and then the morroni-side was eluted from the macroporous resin with 10% ethanol. And the content of the morroniside was more than 50%. It was concluded that the purification technology was simple, reliable, repeatable and suitable for industrial production.

Objective To observe the protective effects of various extracts from Flos Daturae (FD), including active fraction (AF-FD), withanolides constituents (WC-FD), and flavonoids constituents (FC-FD) on Chinese hamster ovary (CHO) cells against cytotoxicity induced by DMSO. Methods The survival rate of CHO cells was examined by MTT assay and LDH leakage assays. Results Using MTT assay, coincubation of CHO cells with 3% DMSO for 24 h resulted in a significant reduction of survival rate of CHO cells. AF-FD was tested in a range of 10—80 ?g/mL to improve the survival rate of CHO cells in a dose-dependent manner. FC-FD (2.5—20 ?g/mL), but not WC-FD (30—120 ?g/mL), could significantly relieve the injury induced by 3% DMSO in CHO cells. In the measurement of LDH leakage, coincubation of CHO cells with 4.5% DMSO for 24 h obviously increased LDH release. However, all the compounds tested, including AF-FD (10—80 ?g/mL), WC-FD (30—120 ?g/mL), and FC-FD (2.5—20 ?g/mL) had no effect on LDH leakage induced by 4.5% DMSO. Conclusion The findings suggest that the FC-FD may protect CHO cells from DMSO cytotoxicity assessed by MTT assay, which may be associated with improving mitochondrial function, but not protecting the membrane injury of CHO cells.

AIM To study the flavonoids from the leaves of Astragalus membranaceus (Fish.) Bge..METHODS The ethyl acetate and n-butyl alcohol fractions of 75％ ethanol extract from A.membranaceus leaves were isolated and purified by silica,ODS and preparative HPLC column,then the structures of obtained compounds were identified by spectral data.RESULTS Thirteen compounds were isolated and identified as quercetin (1),quercetin-3-O-β-D-glucopyranoside (2),rhamnocitrin-3-O-β-D-glucopyranoside (3),rhamnocitrin-3-O-β-neohesperidoside (4),rhamnocitrin-3-O-3-D-glucopyranoside (1'''→2'')-β-D-apiofuranosyl (5),complanatuside (6),glycitein (7),4',7-dihydroxy-3-methoxy isoflavone (8),genistein (9),calycosin-7-O-β-D-glucopyranoside (10),genistin (11),glycitin (12),tiliroside (13).CONCLUSION Compounds 5,8,13 are isolated from genus Astragalus for the first time,and compound 2 is first isolated from this plant.

Worldwide, gastric cancer is the second leading cause of cancer deaths and the fifth most common malignant tumor. Gastric cancer is believed to be caused by a variety of factors, such as genetics, epigenetics, and environmental influences. Among the pathogenic factors, inflammation has been considered as one of the main risk factors for gastric cancer. There are currently limited ways to prevent gastric cancer. Although the combined application of aspirin and non-steroidal anti-inflammatory drugs can reduce the risk, it has great side effects and can easily cause gastric perforation or gastric bleeding. Therefore, an alternative plan is urgently needed. Curcumin is the yellow pigment in the rhizome of the plant turmeric. Current studies have found that curcumin has a protective effect on gastric mucosal damage caused by non-steroidal anti-inflammatory drugs, gastric mucosal damage in rats, and gastric mucosal damage caused by stress bleeding and Helicobacter pylori infection. Curcumin shows significant anti-inflammatory and anti-cancer activities by regulating DNA methylation, histone modification, nuclear factor erythrocyte 2 related factor 2 and other related signal pathways. In this article, the latest evidence of curcumin for epigenetic changes in gastric cancer and its potential contribution to gastric cancer were discussed.

OBJECTIVE To establish H PLC fingerprint of Rheum palmatum before and after steaming with wine ，and to determine the contents of 3 differential components. METHODS HPLC method was used to establish the fingerprints of 15 batches of R. palmatum （before wine-steaming ）and prepared rhubarb （after wine-steaming ）and the similarity evaluation was conducted. The chemical pattern recognition analysis was carried out by principal component analysis ，cluster analysis ，partial least squares- discriminant analysis and orthogonal partial least squares-discriminant analysis. The contents of gallic acid ，resveratrol-4′-O- glucoside and resveratrol- 4′-O-（6″-galloyl）-glucoside in 30 batches of samples were determined. RESULTS In the fingerprint study，48 common peaks were demarcated for R. palmatum and 47 for prepared rhubarb as well as 17 common peaks were identified by reference substance. Cluster analysis and principal component analysis showed that R. palmatum derived from Qinghai before and after steaming with wine could be distinguished from those from Sichuan and Gansu. The results of content determination showed that the contents of 3 differential components in R. palmatum derived from Qinghai before and after steaming with wine were higher than those from other two production areas ；the contents of gallic acid in prepared rhubarb derived from those production areas were higher than R. palmatum ；the contents of resveratrol- 4′-O-glucoside and resveratrol- 4′-O- （6″-galloyl）-glucoside in R. palmatum derived from those production areas were higher than prepared rhubarb. CONCLUSIONS Fingerprint and content determination method established in this study can quickly ，scientifically and accurately evaluate the quality of R. palmatum from different producing areas before and after wine steaming ，which provide a basis for the processing specification and quality control of R. palmatum .

Cancer， one of the deadliest diseases caused by cells escaping homeostasis， abnormal proliferation， and abnormal differentiation， is fast becoming one of the most burdensome diseases of this century. With decades of human research and cognitive changes in cancer， cancer treatment is also developing rapidly， but there is still a lack of effective treatment and countermeasures. Especially， the search for safe， efficient， and non-toxic drugs has become a long-term goal in the field of cancer. Saponins extracted and separated from traditional Chinese medicine can improve cancer through various pathways and have almost no toxic side effects. Therefore， the research on the anti-cancer effect of saponins is heating up. It is found that saponins play anti-tumor roles by inhibiting proliferation， metastasis， and angiogenesis of cancer cells， promoting apoptosis of cancer cells， inducing autophagy of tumor cells， and regulating miRNA expression and immune functions. Chinese herbal medicine saponins can regulate secretory glycoprotein /β-catenin （Wnt/β-catenin）， adenylate activated protein kinase （AMPK）， nuclear transcription factor-κB （NF-κB）， mitogen-activated protein kinase （MAPK）， phosphatidylinositol 3-kinase （PI3K）/protein kinase B （Akt）/mammalian target of rapamycin （mTOR）， Janus kinase/activator of signal transduction and transcription 3 （JAK/ STAT3）， hypoxia-inducible factor-1α （HIF-1α）， Toll-like receptor （TLR）， and other related signaling pathways to get involved in the proliferation， metastasis， angiogenesis， apoptosis， autophagy， and other processes of cancer cells， thus interfering with the progression of cancer. Therefore， the focus of this review is to update the discovery and evaluation of Chinese herbal medicine saponins with anti-cancer properties， clarify their mechanism of action， including the progress of related signaling pathways， and deepen the understanding of the anti-cancer function of Chinese herbal medicine saponins， so as to provide a new perspective and direction for the prevention and treatment of tumors by traditional Chinese medicine and better promote the development and utilization of resources.

Epilepsy is a chronic brain disease characterized by seizures， and is one of the most common nervous system diseases in clinic practice with the recurrent， transient， and refractory characteristics. Clinically， western medicine therapy is mainly adopted in the treatment of epilepsy， but it is not conducive to long-term use for patients on account of severe side effects， which can result in abnormalities in the digestive system， central nervous system， hematopoietic system， urinary system， and liver function to varying degrees. Syndrome differentiation is usually used for the treatment of epilepsy by traditional Chinese medicine （TCM）， which can avoid the side effects of western medicine treatment on the basis of improving patients' syndromes. The literature on TCM in the treatment of epilepsy in China and abroad indicates that the syndrome differentiation in TCM is often based on phlegm， blood stasis， wind， and deficiency， and the treatment methods include acupuncture， acupoint catgut embedding， moxibustion， Chinese medicine monomer， drug pair， and compound decoction. The various treatments of TCM play an important role in the comprehensive treatment of epilepsy through multiple channels and links， such as reducing the degree and number of seizures. This paper comprehensively summarized the clinical experience of TCM in the treatment of epilepsy， systematically expounded various treatment methods and ideas of TCM in the treatment of epilepsy， and deeply discussed the mechanism of TCM in the treatment of epilepsy， aiming to provide a theoretical basis for the clinical formulation of a reasonable individualized treatment plan for epilepsy and diversified ideas for the more effective treatment of epilepsy by TCM.