Chemical constituents from Morinda citrifolia and their inhibitory activities on proliferation of synoviocytes in vitro / 中国中药杂志

The chemical constituents from the stems and leaves of Morinda citrifolia were isolated and purified by column chromatography methods with silica gel, ODS, Sephadex LH-20 and preparative high performance liquid chromatography(HPLC). The structures of the isolated compounds were identified by physicochemical properties and spectroscopic analysis, as well as comparisons with the data reported in literature. 17 compounds were isolated from the 90% ethanol extract of the stems and leaves of M. citrifolia, and were identified as 9,10-dihydroxy-4, 7-megastigmadien-3-one(1), 5,12-epoxy-6,9-hydroxy-7-megastigmen-3-one(2), fukinone(3), β-eudesmol(4), sarmentol F(5), 4, 5-dihydroblumenol A(6), 3-hydroxy-β-ionone(7), aristol-8-en-1-one(8), ergosta-7-en-3β-ol(9), ergosta-7-ene-3β,5α,6β-triol(10),(22E)-5α,8α-epidioxyergosta-6,22-dien-3β-ol(11), olivil(12), 4-epi-larreatricin(13), chushizisin Ⅰ(14), rabdosia acid A(15), glycerol monolinoleate(16) and(9Z,12Z,15Z)-2,3-dihydroxypropyl octadeca-trienoate(17). All compounds were isolated from M. citrifolia for the first time. All isolated compounds were evaluated for their anti-rheumatoid arthritis activities via examining their inhibitory activities on the proliferation of synoviocytes in vitro using MTS met-hod. Compounds 1-11 showed significant anti-rheumatoid arthritis activities, displaying the inhibitory effects on the proliferation of MH7 A synovial fibroblast cell with the IC_(50) values ranging from(38.69±0.86) to(203.45±1.03) μmol·L~(-1).

Effects of chest pain center certification on the treatment of patients with acute ST-elevated myocardial infarction / 第二军医大学学报

ObjectiveTo compare the treatment of acute ST-elevated myocardial infarction (STEMI) before and after the certification of chest pain center model, so as to provide reference for the construction of chest pain center. Methods We retrospectively analyzed the clinical data of patients with acute STEMI before and after certification of the chest pain center of Shanghai General Hospital of Shanghai Jiao Tong University. Totally 119 patients were included in the pre-certification group from January 2017 to December 2017, and 160 patients were included in the post-certification group from January 2018 to April 2019. The baseline data, first medical contact to electrocardiogram (ECG) time, first ECG confirmation time, troponin reporting time, cath lab activation time, door-to-balloon dilation time, hospitalization stay, hospitalization drug cost, hospitalization inspection cost, hospitalization examination cost, total hospitalization cost, and outcomes were compared between the two groups. Results There was no significant difference in the gender, age, history of hypertension or history of diabetes between the two groups (all P>0.05). The cath lab activation time was not significantly different between the two groups (P>0.05). The first medical contact to ECG time (Z?-7.247, P0.05). Conclusion Through the certification and standardized operation of chest pain center, the time of treatment for acute STEMI can be significantly shortened.

Evaluation of the estrogenic effects of rehmapicrogenin / 药学学报

This study offers preliminary insight into the phytoestrogen activity and mechanism of rehmapicrogenin. In this study, we characterized the estrogenic activity of rehmapicrogenin using immature female mice in vivo and MCF-7 cell proliferation assay in vitro. All the procedures for the care of the mice were conducted in accordance with the Regulations of Experimental Animal Administration issued by the State Committee of Science and Technology of the People’s Republic of China. Uterine wet weight/body mass ratios, Western blot assay for estrogen receptor, and serum estrogen levels of estradiol (E2), luteinizing hormone (LH) and follicle stimulating hormone (FSH) were investigated. The effects of rehmapicrogenin, and the estrogen receptor antagonist ICI182,780, the estrogen receptor alpha antagonist MPP, the estrogen receptor beta antagonist THC, the G-protein coupled receptor 30 antagonist G15 combined with rehmapicrogenin on cell proliferation were examined in MCF-7 cells. Rehmapicrogenin (50 mg·kg-1) treatments demonstrated significant estrogenic activity by promoting the development of uterus in immature female mice, as well as increasing the expression of estrogen receptor alpha (ERα) and G-protein coupled receptor 30 (GPR30) at the protein level in uterus, and decreasing FSH and LH compared with the control group. Meanwhile, rehmapicrogenin (6 and 8 μmol·L-1) promoted the proliferation of MCF-7 cells, which were significantly antagonized by ICI182,780, MPP and G15. This study demonstrates rehmapicrogenin exerts estrogenic effects through ERα and GPR30.

Evaluation of estrogenic effects of Semen Descurainiae and its action mechanism / 中国药理学通报

Aim To evaluate the estrogen-like activity of Semen Descurainiae aqueous extracts (SD-ae), to deter-mine its effective chemical separation components and to study the mechanisms. Methods The estrogen-like ac-tivity of SD-ae and its effective chemical separation com-ponents were evaluated by the animal experiment, uterine weight test and cell experiment, namely E-SCREEN ex-periment. Estrogen receptor antagonist ICI182,780 inter-vention blocking experiment was carried out to detect the pathway of estrogen-like action; the HEK293 cells were co-transfected with the report gene carrier and the ERα, ERβ expression vector by cationic liposome, the report gene carrier was constructed via the estrogen-responsive component (ERE) and the report gene luciferase (Luc), then the estrogen-like signaling pathway was evaluated with standardized Luc activity; the expression of estrogen receptor ERα, ERβ and estrogen-induced gene PR mR-NA was detected by real-time fluorescence quantitative PCR. Results Compared with normal control, SD-ae low and high dose could significantly improve the uterine coefficient of immature female mice(P<0.05), and the oligosaccharides composition of Semen Descurainiae aque-ous extracts(SD-ae-Oli) and the polysaccharide composi-tion of Semen Descurainiae aqueous extracts(SD-ae-Pol) also significantly improved the uterine coefficient of im-mature female mice (P<0.01 or P<0.05); SD-ae, SD-ae-Oli and SD-ae-Pol had a significant proliferative effect on MCF-7 cells ( P <0.01 or P <0.05), while ICI182,780 intervened to block its proliferative effect. The reporter gene technology showed that the standardized Luc activities of SD-ae, SD-ae-Oli and SD-ae-Pol were significantly higher than those of the normal control when they were induced by ERβ respectively (P<0.01); and the SD-ae significantly increased the expression of ERβ mRNA in mouse uterus than the normal control, but no effect was found on the expression of ERα and PR mR- NA. Conclusions The estrogenic effect of SD-ae may be found at the first time, and its effective chemical sepa-ration components are SD-ae-Oli and SD-ae-Pol. Their estrogenic effects are mediated by ERβ. The molecular mechanism of the estrogenic effects is probably that SD-ae promotes the expression of ERβ mRNA.

Lung expression of tissue factor mRNA and its significance in a rat model of hepatopulmonary syndrome / 中华肝脏病杂志

<p><b>OBJECTIVE</b>To determine the lung expression of tissue factor (TF) mRNA in hepatopulmonary syndrome (HPS) using a rat model system and to investigate the potential significance of its differential expression.</p><p><b>METHODS</b>Forty male Sprague-Dawley rats were used to establish models of cirrhosis (n = 20) and HPS (n = 20). Blood gas analysis was used to investigate the effects of each model on pulmonary function. Effects on the expression of TF mRNA in lung were determined by qRT-PCR and on lung pathology by histological analysis.</p><p><b>RESULTS</b>The HPS rats showed significantly lower PaO2 than the cirrhosis rats (58.20 +/- 3.19 mmHg vs. 85.00 +/- 2.53 mmHg, P less than 0.05) but significantly higher TF mRNA expression in lung (0.77 +/- 0.22 vs. 0.33 +/- 0.14, P less than 0.05). TF mRNA expression was negatively correlated with the value of PaO2 (r = -0.565, P less than 0.05). The lungs of the cirrhosis rats showed widened alveolar intervals, diversified sizes of alveolar spaces, reduced lung capacity, inflammatory cell infiltration, and hyperemia in the pulmonary vessels. The lungs of the HPS rats showed all of the same changes but also with accumulated macrophages and micro-thrombosis in the pulmonary vessels. Among the HPS rats, those with micro-thrombosis in pulmonary vessels showed a greater increase in TF mRNA expression than those without (0.68 +/- 0.17 vs. 0.40 +/- 0.12, P less than 0.05).</p><p><b>CONCLUSION</b>The expression of TF mRNA in lung of hepatopulmonary syndrome model rats was elevated and might increase the incidence of thromboembolism in the lung.</p>

A new strategy to establish a hepatopulmonary syndrome model in rats by inducing abdominal compartment syndrome in the presence of cirrhosis / 中华肝脏病杂志

<p><b>OBJECTIVE</b>To find a practical method to establish hepatopulmonary syndrome (HPS) in rats for use as an experimental model system.</p><p><b>METHODS</b>Forty male Sprague-Dawley rats were equally divided into a normal group (injected subcutaneously with 3 mL/kg of olive oil for 12 weeks), abdominal compartment syndrome (ACS) group (injected subcutaneously with 3 mL/kg olive oil for 12 weeks, followed by an intraperitoneal injection of 4% succinylated gelatin and maintenance of 20 mmHg abdominal pressure for 3 h), cirrhosis group (injected subcutaneously with 40% carbon tetrachloride (CCl4) in olive oil twice weekly for 12 weeks, with first dose doubled), and an ACS+ cirrhosis (HPS model) group (CCl4-induced, followed by the intraperitoneal injection with succinylated gelatin and 3 h of 20 mmHg abdominal pressure). The mice were sacrificed to perform blood gas analysis and to assess lung pathology. Comparisons between two groups were carried out by non-parametric analysis, and multiple comparisons were carried out by the Kruskal-Wallis H test.</p><p><b>RESULTS</b>Blood gas analyses showed significant differences in the values of pH for the normal group (7.41+/-0.04), the ACS group (7.22+/-0.06), the cirrhosis group (7.53+/-0.04), and the HPS model group (7.47+/-0.02) (P less than 0.05). The ACS group and the HPS model group showed significantly different values of partial pressure of oxygen (PaO₂; 58.57+/-5.41 and 58.20+/-3.19 mm Hg) and of alveolar-arterial oxygen difference (AaDO₂; 83.86+/-28.49 and 84.80+/-11.82 mm Hg) than the normal group and the cirrhosis group (PaO₂: 86.67+/-1.37 and 85.00+/-2.53 mm Hg; AaDO₂: 38.17+/-9.20 and 37.00+/-6.23 mm Hg) (P less than 0.05). Pathological analysis of the lungs from the ACS group revealed widened alveolar septa, different-sized alveolar spaces, reduced lung capacity, edema and hemorrhage in some of the alveolar cavities, and telangiectasia in the alveolar walls. The lungs from the cirrhosis group also showed widened alveolar septa, different-sized alveolar spaces, and reduced lung capacity, but were distinct in the features of inflammatory cell infiltration, and hyperemia in the pulmonary vessels. The lungs from the HPS model group showed all of the features of both the lungs from the ACS and cirrhosis groups, but also showed macrophage accumulation and microthrombi in the pulmonary vessels.</p><p><b>CONCLUSION</b>Inducing ACS in the setting of CCL4-induced cirrhosis in a rat generates pathological features that adequately mirror those of HPS and may represent a useful experimental model for in vivo studies of HPS.</p>

Quantitative assessment of late lumen loss after biodegradable polymer and permanent polymer sirolimus-eluting stents implantation / 中华医学杂志(英文版)

<p><b>BACKGROUND</b>Sirolimus-eluting stents (SES) are reported to be associated with reduced late lumen loss (LLL), resulting in less frequent restenosis when compared to bare-metal stent. The current study aimed to assess the difference in LLL between SES with biodegradable and with permanent polymer.</p><p><b>METHODS</b>From March 2010 to June 2011, 300 consecutive patients having only biodegradable polymers or permanent polymer SES for all diseased vessels were included. Serial quantitative coronary analysis was performed on both the "in-stent" and "segment" area, including the stented segment, as well as both five mm margins proximal and distal to the stent. The primary endpoint was the LLL defined as the minimal lumen diameter (MLD) post-stenting minus the MLD at nine-month after the indexed procedure.</p><p><b>RESULTS</b>LLL was comparable between the two stents. Importantly, LLL for the distal segment (median 0.05 mm, interquartile 0 to 0.09 mm) was less severe compared with in-stent (median 0.13 mm, interquartile 0.08 to 0.18 mm) and proximal segment LLL (median 0.12 mm, interquartile 0.06 to 0.14 mm, all P < 0.001). In general, the LLL was associated with the post-procedure MLD (b = 0.28, P = 0.002), hyperlipidemia (b = 0.14, P = 0.021), and calcified lesions (b = 0.58, P = 0.001). The R(2) and Radj of the multiple regression model were 0.651 and 0.625, respectively.</p><p><b>CONCLUSIONS</b>SES with either biodegradable or permanent polymer had lower value of LLL. The small amount of LLL at the distal segment possibly contributed to the less distal edge stenosis.</p>

Contrast study of acupuncture anesthesia and local anesthesia: their effects on the blood pressure and the heart rate in chronic rhinitis patients accompanied inferior turbinate hypertrophy in low temperature radiofrequency ablation / 中国中西医结合杂志

<p><b>OBJECTIVE</b>To compare the effects of acupuncture anesthesia (AA) and local anesthesia (LA) on the blood pressure (BP) and the heart rate (HR) in chronic rhinitis patients accompanied inferior turbinate hypertrophy in low temperature radiofrequency ablation (RFA).</p><p><b>METHODS</b>Totally 61 chronic rhinitis patients accompanied inferior turbinate hypertrophy were randomly assigned to the AA group (31 cases) and the control group (30 cases). All patients received RFA respectively under AA and RA. Their heart rate (HR), systolic pressure (SP), diastolic pressure (DP), and mean pressure (MP) were recorded and compared at 10 minutes after their entry into the operating room, immediately before surgery, intraoperation, and 5 min after operation.</p><p><b>RESULTS</b>When compared with the control group at the same time points, the SP, DP, MP, and HR all decreased at intraoperation and 5 min after operation in the AA group. There was statistical difference in the SP on the right side at the 2nd melting point and the HR on the left side at the 2nd melting point between the two groups (P < 0.05). Compared with the same group at 10 min after entry into the operating room, the SP on the right side at the 1st melting point, the SP, DP, and MP on the right side at the 2nd melting point, the SP, DP, and MP on the left side at the 1st melting point, and the SP on the left side at the 2nd melting point all obviously increased with statistical difference (P < 0.05, P < 0.01). When compared with the same group at 10 min after entry into the operating room and immediately before surgery, there was no statistical difference in the SP, DP, MP, or HR of the AA group at intraoperation and 5 min after operation (P > 0.05). When compared with the same group at 10 min after entry into the operating room and immediately before surgery, there was no statistical difference in HR of the control group at intraoperation and 5 min after operation (P > 0.05).</p><p><b>CONCLUSION</b>Patients undergoing AA had less fluctuation of the BP and the HR, indicating AA had better analgesic effects.</p>