Investigation on in-stent recurrent stenosis after stenting of the extra-and intracranial artery in the elderly / 中华老年医学杂志

Objective To investigate the distribution of in-stent recurrent stenosis (1RS) after balloon-angioplasty and stenting in elderly cerebral ischemic patient and its correlative factors.Methods Totally 158 elderly cerebral ischemic patients with extra-and/or intracranial artery stenosis were treated with 172 stents in our hospital.The inhibition of platelet function was assessed by using the thrombus elasticity chart system in perioperative period,and the anti-platelet agents were adjusted correspondingly.150 patients were followed up by digital subtraction angiography (DSA) and the other 8 patients were followed up by CT angiography,during an average follow-up duration of 8.3 months.Results There were 11 (6.4％) IRS lesions,among which 10 lesions were at the vertebral artery origin and 1 lesion was at common carotid artery bifurcation.23.8％ of IRS happened after vertebral artery origin stenting,and all in-stent recurrent stenosis were in the origin of non-dominant vertebral artery,whose IRS rate was 66.7％.Conclusions IRS are more common found in vertebral artery origin than in other parts of vertebral artery and are more common found in nondominant side than in dominant side.

Study on once sampling quantitation based on information entropy of ISSR amplified bands of Houttuynia cordata / 中国中药杂志

<p><b>OBJECTIVE</b>To explore the once sampling quantitation of Houttuynia cordata through its DNA polymorphic bands that carried information entropy, from other form that the expression of traditional Chinese medicine polymorphism, genetic polymorphism, of traditional Chinese medicine.</p><p><b>METHOD</b>The technique of inter simple sequence repeat (ISSR) was applied to analyze genetic polymorphism of H. cordata samples from the same GAP producing area, the DNA genetic bands were transformed its into the information entropy, and the minimum once sampling quantitation with the mathematical mode was measured.</p><p><b>RESULT</b>One hundred and thirty-four DNA bands were obtained by using 9 screened ISSR primers to amplify from 46 strains DNA samples of H. cordata from the same GAP, the information entropy was H=0.365 6-0.978 6, and RSD was 14.75%. The once sampling quantitation was W=11.22 kg (863 strains).</p><p><b>CONCLUSION</b>The "once minimum sampling quantitation" were calculated from the angle of the genetic polymorphism of H. cordata, and a great differences between this volume and the amount from the angle of fingerprint were found.</p>

Study of additive properties of total quantum statistical moment of chromatographic fingerprint for Buyang Huanwu decoction / 中国中药杂志

<p><b>OBJECTIVE</b>To study the differences of HPLC fingerprints with the total quantum statistical moment for the Buyang Huanwu decoction (BYHWD) processed by various ways, and to verify the additive properties of total quantum statistical moment.</p><p><b>METHOD</b>The extracts of BYHWD were obtained by water extraction and alcohol precipitation firstly, and then were dissolved with five solvents of different solubility parameter from 11.4 Cal(1/2) x cm(-3/2) to 23.40 Cal(1/2) x cm(-3/2) respectively. Their chromatographic fingerprints were determined by HPLC, finally the total quantum statistical moment parameters and its superposition properties were manual calculated and analyzed by their expressions.</p><p><b>RESULT</b>As a contrast as the whole prescription, the similarities of the various processed samples with butanol (11.4 Cal(1/2) x cm(-3/2)), methanol (13.5 Cal(1/2) x cm(-3/2)), 68% methanol (16. 67 Cal(1/2) x cm(-3/2)), 34% methanol (20.03 Cal(1/2) x cm(-3/2)) and distilled water (23.40 Cal(1/2) x cm(-3/2)) were 0. 074, 0. 973, 0. 934, 0. 991, 0. 993, respectively and while the RSD of these total quantum zero moment, center moment and variance of each chromatographic fingerprints for them were 63.04%, 16.22%, 69.38%, which showed significant difference in these chromatographic fingerprints. The total quantum statistical moment parameters of the superimposed chromatographic fingerprint with each sole samples were 3.203 x 10(5) mAu x s, 29.85 min, 389.97 min2, whereas the whole prescription's were 6.548 x 10(4) mAu x s, 29.44 min, 389.00 min2, that suggested that the absolute difference percentages between the superimposed and the whole were 2.209%, 1.389%, 0.2484%, respectively.</p><p><b>CONCLUSION</b>The total quantum statistical moment of the chromatographic fingerprints is of characteristics with additive properties, it can be used in static and dynamic quality controlled analyses in the Chinese medicine multiple component systems.</p>

Clinical study of early intervention treatment of aneurysmal subarachnoid hemorrhage in the elderly / 中华老年医学杂志

Objective To investigate the safety and feasibility of early intervention treatment for aneurysmal subarachnoid hemorrhage in the elderly. Methods Within 6 to 72 hours after hemorrhage,89 aneurysms were detected by overall brain angiogram in 84 elderly patients(aged above 60 years)Who were diagnosed as subarachnoid hemorrhage on CT.HUNT-HESS grade was as following:26 cases of grade Ⅱ,31 cases of grade Ⅲ,25 cases of grade Ⅳ,2 cases of grade Ⅴ.Interventional embolization treatment was performed immediately.Aceording to the structure of the aneurysm,pure coil embolization,balloon assisted technique and combined with stent technique were performed.Anhydration,fluid expansion,vessel dilatation,lumbar puncture and/or lumbar drainage were performed after procedure.At the same time,the complications were treated. Results Eighty-three aneurysms were embolized successfully in 89 patients.The Success rate of the technique was 93.3%.The Glasgow Outcome Seale(GOS)score at 3 months post procedure showed a good result in 68 patients.medium disability in 7 patients,severe disability in 4 patients,death in 5 patients (1 case was related to the technique). Conclusions Interventional embolization iS a safe and effective therapeutic approach in elderly patients with subarachnoid hemorrhage.