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OBJECTIVE:To observe the efficacy and safety of alprazolam by progressive dose increasing in the treatment of chronic tinnitus. METHODS:Totally 50 patients with chronic tinnitus were included. They were orally treated with Alprazolam tab-let 0.4 mg in the first 1 and 2 week(s),once every night at bedtime;0.4 mg in 3 and 4 weeks,once in the morning and once in the evening;0.4 mg in 5 and 6 weeks,three times a day. If the treatment of tinnitus was invalid,then the gradual withdrawl was conducted by twice a day for continuous 3 d,0.4 mg each time;then once a day,0.4 mg each time,for continuous 3 d. The re-sponders were maintained 12 weeks,and gradual withdrawal was conducted,and followed by follow-up for 3 months. The clinic data was observed,including the clinical efficacy,tinnitus disability scale(THI)score,visual analogue scale(VAS)score,tinnitus loudness(TI)and incidence of adverse reactions before and after treatment. RESULTS:The effective rate was 66.67%;after treat-ment,the scores of THI and VAS,and TI were significantly lower than before,with significant differences(P<0.05). There were no obvious adverse reactions during treatment. CONCLUSIONS:The alprazolam by progressive dose increasing has obvious effica-cy in the treatment of chronic tinnitus,with good safety.
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Object To study the microwave assisted procedure for the extraction of baicalin from root of Scutellariae baicalensis Georgi Methods An MSP 100D domestically made microwave sample preparation system with a maximum power of 850 watts was used. The effects of solvents, pressure/temperature of solvents and microwave radiation time on the yield of baicalin were studied by orthogonal experimental design. Results The optimal experimental conditions were extraction at 70% of microwave power with 30 times of 35% ethanol at a constant heating pressure/temperature of 0.15 MPa for 30 s. Conclusion The microwave assisted extraction not only takes a shorter time with better parallel results, but also gave an increased yield of about 10% as compared with ultrasonic extraction.
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Object To study the anthraquinone constituents in rhizoma and radix of Rheum sublanceolatum C Y Cheng et T C Kao Methods The constituents were isolated through column chromatography, and their structures elucidated through physicochemical and spectral analysis Results 6 anthraquinones were isolated and identified as chrysophanol (Ⅰ); physcion (Ⅱ); emodin (Ⅲ); emodin 8 O ? D glucopyranoside (Ⅳ); aloe emodin 8 O ? D glucopyranoside (Ⅴ) and citreorosein (Ⅵ) Conclusion All these compounds were isolated from R sublanceolatum for the first time
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Object To establish the quality standard for Wuhu Powder. Methods Radix Angelicae Sinensis (RAS), Radix Angelicae Dahuricae (RAD), and Flos Carthami (FC) were determined qualitatively by TLC. The content of cimicifugoside and 5-O-methylvisammioside were determined by HPLC. Results The linear ranges of cimicifugoside and 5-O-methylvisammioside were 0.370 0—1.850 0 ?g and 0.191 0—0.955 0 ?g. The recoveries were 100.74% and 98.33%, RSD were 0.67% and 1.91% (n=5), respectively. Conclusion The method is simple, accurate, credibility, which can be used as the quality control standard of Wuhu Powder.