Objective:To establish an HPLC method to determine the content of rosmarinic acid in Wuling capsules. Methods:The chromatographic column was Linksil-ODS (250 mm × 4. 6 mm,5 μm) with a gradient elution mode at the flow rate of 0. 8 ml· min-1,and the mobile phase was acetonitrile-water (32∶68) including 0. 5% acetic acid. The detection wavelength was 319 nm, the column temperature was 25 ℃ and the injection volume was 20 μl. Results: The linear range was 2-80 μg·ml-1 and the standard curve showed good linear regression within the range(r=0. 999 8). And the average recovery was 97. 07﹪ (n=6) with the inter-day precision (RSD) of 1. 35 %. Conclusion:The method is accurate and rapid with good reproducibility in the determination of ros-marinic acid in Wuling capsules, which can be used to control the quality of rosmarinic acid in Wuling capsules.

Objective: To establish a method for the determination of atractylenolide Ⅰ in Atractylodes macrocephala by HPCE. Methods:The separation conditions of HPCE were as follows:50 mmol·L-1 borate buffer was used as the running buffer, the UV de-tection was set at 210 nm, the separation voltage was 20 kV, the column temperature was 25℃ and the pressure injection was 50 mbar × 5 sec. Results:The lower detection limit was 0. 5 μg·ml-1 . The concentration of atractylenolide Ⅰ showed a linear plot within the range of 2-100 μg·ml-1(r=0. 996 0). The average recovery was 97. 1%, and the intra-and inter-day RSD was 1. 3% and 2. 5%, respectively. Conclusion:The established method is simple, sensitive and economic. The method is suitable for the quality control of atractylodes macrocephala.

Objective:To establish a method for determining osthole in Baicao Fuyanqing suppositories by HPLC. Methods:The de-termination was carried out on a DL-Cl8column (4.6 mm ×150 mm, 5 μm). The mobile phase consisted of acetonitrile-water (65 ∶35) with the detection wavelength at 321nm and the flow rate of 1. 00 ml·min-1 . Results:The linear range of osthole was 2. 0-80. 0 μg· ml-1(r=0. 999 1). The average recovery of osthole was 97. 5%(RSD=1. 95%,n=6). Conclusion:The method is simple, rapid and accurate, which can be used for the determination of osthole in Baicao Fuyanqing suppositories.

Objective:To establish a rapid and sensitive method for the determination of carbendazim in honeysuckle flowers by LC-MS/MS. Methods:The sample was extracted by acetic ether. The mass spectrometer was operated in the positive ionization elec-trospray ( ESI) mode using selection ion monitoring ( SIM) . The transition m/z 192→160 was used to quantify carbendazim. Results:The method had a satisfactory linearity within the range of 50-5 000 ng·ml-1 for carbendazim (r=0. 999 4), the limit of detection (LOD) was 2. 0 ng·ml-1, and the mean recovery was 93. 2%. Conclusion:The method of LC-MS/MS is sensitive, simple and ac-curate,which is proved to be suitable for the determination of carbendazim in honeysuckle flowers.

Relying on unique wild Chinese crude drug, animal and plant resources of Wudang Mountain and Shennongjia, biological pharmacy technology and talent advantages, Shiyan area has a definite competitive advantage in the development of biomedicine industry. This paper analyzed the current situation of biomedical industry and put forward corresponding strategies in Shiyan area based on SWOT.

Objective:To establish an HPLC method to simultaneously determine the content of protocatechualdehyde, rosmarinic acid and salvianolic acid A in Salvia miltiorrhiza Bunge. Methods: The chromatographic column was a Linksil-ODS ( 250 mm × 4. 6 mm,5 μm) column,the mobile phase was 1% acetic acid water solution-acetonitrile (7∶3) with the flow rate of 0. 8 ml·min-1 . The detection wavelength was 280nm , the column temperature was 30℃ and the injection volume was 20 μl. Results: The linear range of protocatechualdehyde, rosmarinicacid and salvianolic acid A was 3-300 μg·ml-1(r>0. 999 0), and the recovery was within the range of 95. 22%-99. 68% with RSD below 2% (n=5). Conclusion:The method is accurate, rapid and reproducible, and can be used to control the quality of Salvia miltiorrhiza Bunge.

OBJECTIVETo investigate the efficacy and safety of inhaled iloprost on top of other pulmonary hypertension (PH) specific therapies for patients with PH and severe right heart failure.

METHODSWe consecutively enrolled WHO functional class IV patients with PH and chronic thromboembolic pulmonary hypertension (CTEPH) in Shanghai Pulmonary Hospital from January 2011 to January 2013. Inhaled iloprost was administrated to all enrolled patients, oral endothelin antagonist receptors (ERAs) and/or type 5 phosphodiasterase inhibitors (PDE5-I) were also used as basis therapies. The in-hospital outcomes and the changes of right heart functional parameters were observed.

RESULTSTwenty-four patients with PH and 5 patients with CTEPH were enrolled. After a mean treatment duration of (23 ± 13) days, 3 patients dead and significant improvement was observed in the remaining 26 patients. Compared with the baseline, heart rate decreased from (99 ± 14) to (91 ± 12) bpm (P = 0.001), plasma NT-proBNP level decreased from 5 823 (3 029-13 248) to 3 220 (1 678-6 720) ng/L (P < 0.001), tricuspid annular plane systolic excursion (TAPSE) increased from (1.3 ± 0.4) to (1.4 ± 0.3) cm (P = 0.018), right ventricular diameter decreased (left-to-right diameter from (57 ± 11) to (53 ± 10) mm, P = 0.040, and superoinferior diameter from (69 ± 11) to (64 ± 16) mm, P = 0.027), Tbil also decreased from (41 ± 34) to (26 ± 17) µmol/L (P < 0.001). No severe side effects were observed.

CONCLUSIONThe strategy of inhaled iloprost on top of other PAH-specific target therapy medications is effective and safe for PH patients with severe right heart failure.

Heart Failure ; Humans ; Hypertension, Pulmonary ; Iloprost ; Natriuretic Peptide, Brain ; Peptide Fragments ; Vasodilator Agents ; Ventricular Dysfunction, Right

Objective To analyze the efficacy and safety of glimepiride treatment as initial monotherapy in newly diagnosed patients with type 2 diabetes mellitus (T2DM).Methods This was a subgroup analysis of the GREAT study,which investigated the efficacy and safety of glimepiride as initial monotherapy in Chinese patients with T2DM.This analysis was performed in 209 patients with disease duration less than 6 months and never received any anti-diabetic drugs.The change of HbA1C,fasting plasm glucose (FPG),2 h postprandial blood glucose (2hPPG),homeostasis model assessment for β-cell function index (HOMA-β),homeostasis model assessment for insulin-resistance index(HOMA-IR),the percentage of patients with HbA1C ＜ 7.0％ at endpoint and the incidence of hypoglycemia were evaluated after 16-weeks treatment.Results After 16-weeks glimepiride treatment,HbA1C value reduced significantly from baseline to endpoint,the reduction was statistically significant (9.21％ ± 1.65％ to 6.69％±0.83％,P＜0.001),69.7％ of the patients achieved HbA1C ＜7.0％ at study endpoint.Glimepiride-treated patients also achieved a significant improvement in FPG [from (10.15 ± 2.13) mmol/L to (7.23 ± 1.50) mmol/L,P＜0.001] and 2hPPG [from (17.21 ±4.14) mmol/L to (11.62 ± 3.34) mmol/L].HOMA-β was improved from 17.21± 15.19 [11.62 (2.90,115.8)] to 41.13 ± 44.12 [28.00 (5.1,360.00)],and HOMA-IR was reduced from 2.32± 1.90 [1.76 (0.60,12.80)] to 2.07 ± 1.74 [1.63 (0.4,12.3)].The incidence of all reported symptomatic hypoglycemia was 18.2％,and the incidence of confirmed hypoglycemia was 3.8％.Conclusion This analysis showed that glimepiride treatment as an initial mono-therapy could effectively improve blood glucose control in newly diagnosed patients with T2DM,and the treatment may improve islet β cell function,and the safety profile is reasonably good.

Objective:To construct a droplet digital PCR (ddPCR) for quantification of virus particles in recombinant adenovirus-vectored SARS-CoV-2 vaccine.Methods:The genome of SARS-CoV-2 BA.1 strain was used as the target gene. A set of primer and probe was designed based on the conserved sequence of spike protein, and the ddPCR for quantification of virus particles in recombinant adenovirus-vectored SARS-CoV-2 vaccine was established. The linearity, accuracy, specificity, repeatability and durability of the method were verified.Results:The optimal annealing temperature for ddPCR was 63℃. When the number of virus particles was in the range of 5×10 5-2×10 7 VP/ml, the linearity and the recovery rate of the method were good; the specificity of the probe and primer was good; the coefficient of variation (CV) values of the repeatability and the intermediate precision were within 10%; the CV value of the durability was within 15%. When comparing ddPCR with qPCR, the CV values were all within 10%. Conclusions:The established ddPCR had high sensitivity, good stability and strong specificity, suggesting that it could be used for the quantitative detection of virus particles in recombinant adenovirus-vectored SARS-CoV-2 vaccine.

OBJECTIVETo compare the clinical characteristics and survival on Chinese patients with idiopathic pulmonary arterial hypertension (IPAH) and familiar pulmonary arterial hypertension (FPAH) during conventional therapy era and targeted therapy era.

METHODSIPAH and FPAH patients who were referred between Jan 1999 and Oct 2004 in Fuwai Hospital were defined as conventional therapy era group (before 2005 no PAH-specific drug was available in China). All patients in this group were followed up till Jun 2005. IPAH and FPAH patients who were referred between Sep 2006 and Aug 2011 were defined as targeted therapy era group (new PAH-specific drugs were available in China since 2006) were analyzed. All patients in this group were followed up till Dec 2013. The primary endpoints were death and therapy medicine.

RESULTSSeventy-two patients were enrolled in conventional therapy era group, 375 were enrolled in targeted therapy era group. The mean age was (35.9 ± 12.2) years and (34.5 ± 17.4) years respectively (P = 0.67), and women was predominant in both groups. There was no difference in WHO functional class and hemodynamic data between the two groups. About 90.3% patients were treated by calcium-channel blockers (CCB) in conventional therapy era group. In targeted therapy era group, almost all patients were treated by at least one PAH-specific drug, only 3.2% patients who had a positive response to acute pulmonary vasodilator testing were treated by CCB. The median survival time was 30.4 months in conventional therapy era group and 66.2 months in targeted therapy era group. The 1-, 2-, 3- and 5- year survival rates of IPAH and FPAH patients were 68.0%, 56.9%, 38.9% and 20.8% in conventional therapy era group, and 89.3%, 78.1%, 68.2% and 53.7% in targeted therapy era group respectively (P < 0.000 1).

CONCLUSIONCompared with conventional therapy era, the survival rate of Chinese IPAH and FPAH patients is significantly improved in targeted therapy era.

Adult ; Aged ; China ; epidemiology ; Familial Primary Pulmonary Hypertension ; epidemiology ; therapy ; Female ; Follow-Up Studies ; Humans ; Hypertension, Pulmonary ; epidemiology ; therapy ; Male ; Middle Aged ; Survival Rate ; Young Adult