2.The application of comprehensive echocardiographic parameters in assessment of left ventricular diastolic function in patients with hypertension
Yarong ZHONG ; Chunyan SHAO ; Qian ZHANG
China Medical Equipment 2017;14(3):73-76
Objective:To discuss the clinical assessment value of comprehensive echocardiographic parameters in detecting the left ventricular diastolic function in patients with hypertension. Methods: 60 hypertensive patients (30 cases without left ventricular hypertrophy (non-LVH), 30 cases with left ventricular hypertrophy(LVH) were divided into hypertension group, and 60 healthy subjects were in control group. All of the subjects were underwent M type, color ultrasound and tissue Doppler imaging (TDI). And to compare their comprehensive echocardiographic parameters.Results: Compared with the healthy control group, the IVSd, LVPWd, LVMI, LAD and LVD of hypertension group were significantly enlargement; the s', e', E peak and LVEDP of hypertension group also significantly increased, while a' and A peak were significantly reduced; compared with non-LVH, e', E peak and LVEDP of LVH group were significantly increased, and a' and A peak were significantly reduced, and these differences were statistically significant (t=-4.39,t=-4.39,t=5.47,t=-8.02, t=6.20,t=18.95, t=16.12;P<0.01).Conclusion: The comprehensive echocardiographic parameters can evaluate the extent of damage for left ventricular diastolic function of patients with hypertension, and they can be as the assessment standard of left ventricular hypertrophy. In clinical practice, TDI can be used as a new means in the evaluation of ventricular diastolic function.
4. A review on clinical application of high frequency traditional Chinese medicine in treatment of coronavirus pneumonia 2019
Chinese Traditional and Herbal Drugs 2020;51(5):1153-1158
Since December 2019, there has been a sharp increase in the number of confirmed cases of pneumonia caused by the novel coronavirus (SARS-CoV-2) in China, which has caused great concern around the world. In face of severe epidemic, no specific drugs have been found in clinical practice. However, some Chinese medicine compounds have shown obvious clinical efficacy, and it is feasible to find and develop natural drugs for the treatment of novel coronavirus pneumonia from these compounds. In this paper, based on the recommends of new type of coronavirus infection pneumonia diagnosis and treatment scheme (trial version 6), the use frequency of Chinese herbal medicines was calculated. The antiviral reports of high frequency Chinese herbal medicines were reviewed, in order to provide the reference for screening the active components against SARS-CoV-2 from traditional Chinese medicine.
8.Troubleshooting of bioinequivalence of compound valsartan tablets.
Da SHAO ; Yifan ZHANG ; Yan ZHAN ; Xiaoyan CHEN ; Dafang ZHONG
Acta Pharmaceutica Sinica 2014;49(4):524-9
The study aims to evaluate the bioequivalence of valsartan hydrochlorothiazide tablets, and to investigate the potential cause of bioinequivalence. This was a single-center study with an open, randomized double-way crossover design. Test and reference preparations containing 160 mg of valsartan and 25 mg of hydrochlorothiazide were given to 36 healthy male volunteers. Plasma concentrations of valsartan and hydrochlorothiazide were determined simultaneously by LC-MS/MS. The pharmacokinetic parameters and relative bioavailability were calculated, while the bioequivalence between test and reference preparations were evaluated. The dissolution profiles of test and reference preparations in four different mediums were determined via dissolution test and HPLC. The similarity was investigated according to the similarity factors (f2). The F(o-t) and F(0-infinity) were (139.4 +/- 65.2)% and (137.5 +/- 61.2)% for valsartan of test preparations. It led to get the conclusion that test and reference preparations were not bioequivalent for valsartan. A significant difference was observed between test and reference tablets in the valsartan dissolution test of pH 1.2 hydrochloric acid solution. The key factor of the bioinequivalence might be that dissolution of valsartan in acid medium has marked difference between two preparations.
9.Long-term efficacy analysis of microvascular decompression for hemifacial spasm.
Qijie SHAO ; Yanjun ZHONG ; Deyi DUAN ; Zhiqiang ZHANG ; Qilong CHENG
Chinese Journal of Nervous and Mental Diseases 2001;27(2):122-123
Objective To investigate the factors associated with long-term efficacy of microvascular decompression for hemifacial spasm. Methods 253 cases of hemifacial spasm treated with microvascular decompression were followed 13 to 144 months (mean 73 months). Results Hemifacial spasms were obliterated in 232 cases (91.7%) and were partially relieved in 10 cases (4%). However, hemifacial spasm recurred 11 cases (4.3%). We re-operated on those who had recurrent hemifacial spasm and found that the material used for previous decompression had moved. The movement of decompression material could be the cause of spasm recurrence. Conclusions Upholding of depression material around the blood vessels against movement near the facial nerve plays an important role for improving the long-term efficacy of MVD for hemifacial spasm.
10.Progress of Epitope Vaccine
Zhong FANG ; Wen-Xin LUO ; Ning-Shao XIA ;
China Biotechnology 2006;0(11):-
Epitope vaccine is one of the emerging vaccine techniques developing in past decade years.Particularly the advantages of this vaccine on preventing and therapy illness,as cancer and virus,are espacially outstanding.The most importent elements about the vaccine,namely T/B-epitopes obtainment and identification,vehicles for epitope and vaccine construction,are reviewed.In addition,applications of the vaccine technique in some refractory diseases,such as cancer,virus and pathogen infection,are depicted.