Study on the Effects of Different Primary Processing Methods on the Quality of Polygonatum sibiricum / 中国药房

OBJECTIVE： To explore the effects of different primary processing methods on quality change of Polygonatum sibiricum， and to optimize primary processing method of P. sibiricum with different grades and shapes. METHODS： After processed with different drying methods， boiling method and steaming method， sulfuric acid-phenol method was used to determine the contents of indicator component P. sibiricum polysaccharide in samples. The contents of ethanol-soluble extract， water-soluble extract and total ash were investigated. The optimal primary processing methods were screened. RESULTS： After processed with different methods， the contents of polysaccharide （≥7％）， ethanol-soluble extract （≥45％） and total ash （≤4％） of samples at all levels conformed to the requirements of the 2015 edition of Chinese Pharmacopoeia （part Ⅰ）； from aspect of drying method， microwave drying method was better than oven drying method；for P. sibiricum with different morphologies （individual and lamellar）， the quality of lamellar samples of P. sibiricum was better than that of individual P. sibiricum. As primary processing method， steaming was better than boiling. The contents of P. sibiricum polysaccharide were in relatively high level， when the steaming and boiling time of gradeless and uniformly-priced goods of P. sibiricum were 20 and 15 minutes respectively. CONCLUSIONS： By discussing the different primary processing methods， high-efficient primary processing method for the individual and lamellar samples of P. sibiricum as well as gradeless and uniformly-priced goods of P. sibiricum are preliminarily obtained， which can provide a scientific basis for the effective utilization of P. sibiricum resources.

Safety and feasibility of transradial approach for intervention therapy after coronary artery bypass graft / 中国介入心脏病学杂志

Objective To compare safety and feasibility using radial versus femoral access during cardiac catheterization of patients who had previously undergone coronary artery bypass graft ( CABG) surgery. Methods We retrospectively evaluated 116 consecutive patients who underwent graft intervention via the transradial (TRA group, n = 46) or transfemoral approach (TFA group, n = 70), and observed the baseline clinical characteristics, angiography characteristics and complications between the 2 groups. Results The baseline clinical characteristics between the 2 groups were similar ( all P > 0. 05) . No significant difference was observed in angiography characteristics and procedural parameters including operation time, radiation exposure and puncture time between the 2 groups (all P > 0. 05). There was no significant difference in major adverse cardiac events during hospitalization. PCI to graft vessels were all successful and procedural success rates were similar between the 2 groups (P = 0. 669). Vascular access site complications were significantly lower ( P = 0. 03) in the TRA group. No access site complication was recorded in the TRA group. 7 cases (10. 0% ) with complications were recorded in the TFA group including 1 case of major bleeding (1. 4% ), 3 cases of minor bleeding (4. 3% ), 2 cases of local hematorna (2. 9% ) and 1 case of A-V fistula formation. Conclusions In contrast to the transfemoral route, the rate of major vascular complications was negligible using the transradial approach.

Therapeutic effect of vertebral artery stenting for treating vertebral artery stenosis / 心血管康复医学杂志

Objective:To summarize experience of vertebral artery stenting in nine cases with vertebral artery stenosis for providing reference for clinical treatment .Methods :Success rate of operation ,vertebral artery stenotic degree before and after operation were evaluated in nine cases undergoing vertebral artery stenting .Results:A total of nine stents were implanted in nine cases and the success rate of operation was 100% ,after stents were implanted blood flow was unobstructed ,stent expansion was good and intracranial blood supply was good .Compared with before op‐eration ,stenosis rate significantly reduced after operation [(84.0 ± 5.7)% vs .(10.0 ± 2.0)% ] (P<0.01) .No vas‐cular restenosis occurred within three‐year follow -up .Conclusion:Vertebral artery angioplasty and stenting is a new emerging ,minimally invasive ,effective and highly safe therapeutic method for vertebral artery stenosis ,the therapeutic effect is sure and application prospect is broad .

Clinical study of different doses of intracoronary adenosine on the measurement of fractional flow reserve / 中国介入心脏病学杂志

Objective To study the suitable dose of intracoronary adenosine (AD) on fractional flow reserve (FFR) measurement in Chinese patients with angiographic coronary artery disease. Methods FFR was measured in 32 patients with 40 moderate coronary stenosis. Boluses of intracoronary AD at increasing doses of 60μg (A1), 80μg (A2), 100μg (A3) and 120μg (A4) were randomly administered. FFR values, symptoms, systemic effects and development of atrioventricular block were recorded. Results FFR value decreased significantly by 8.99%(A1), 11.24%(A2), 13.48%(A3) and 13.48%(A4) compared with the baseline distal coronary pressure/aortic pressure (0.891±0.044, all P<0.001). A3 and A4 showed significantly lower FFR values than A1 (t=6.331、6.343, all P < 0.001),A2 (t=2.974、3.058, P=0.005、0.004). Positive rates of an FFR of<0.75 were 30.0%(n=12), 32.5%(n=13), 35.0%(n=14) and 35.0%(n=14) in A1, A2, A3 and A4. A total of 13 patients(40.6%) reported at least one side effects. Conclusions This study suggests a dose-response relationship for intracoronary AD on the measurement of FFR in Chinese patients with angiographic coronary artery disease. The suitable dose of bolus of intracoronary AD is 100μg.

Chemical constituents in roots of Osbeckia opipara / 中国中药杂志

<p><b>OBJECTIVE</b>To study the chemical constituents of the roots of Osbeckia opipara.</p><p><b>METHOD</b>Repeated column chromatography over silica gel, RP-18 and Sephadex LH-20, and preparative thin layer chromatography(PTLC) were used to isolate the compounds, whose structures were determined by spectroscopic methods by direct comparing spectral data with those reported references.</p><p><b>RESULT</b>From the MeOH extract of the roots O. opipara, twelve compounds were isolated and identified as follows: lasiodiplodin (1) , de-O-methyllasiodiplodin (2), 2, 3- dihydro-2-hydroxy-2, 4-dimethyl-5-trans-propenylfuran-3-one (3), integracin (4), 5alpha, 8alpha-epidioxy-(22E, 24R)-ergosta-6, 22-dien-3beta-ol (5), 3, 3', 4'-tri-O-methylellagic acid (6), 5-hydroxymethyl furaldehyde (7), vomifolio (8) , betulintic acid (9), 2alpha-hydroxyursolic acid (10), (24R)-stigmast-4-ene-3-one (11), and eugenitin (12).</p><p><b>CONCLUSION</b>Compounds 1-12 were isolated from O. opipara for the first time.</p>