1.Optimization of Extraction Technology for Total Saponins of Ardisia Crenata by Singlefactor Experiment Combined with Response Surface Methodology
Herald of Medicine 2014;(8):1080-1082
Objective To optimize the extraction process of Ardisia crenata based on the content of total saponins and to provide a basis for the Ardisia crenata study. Methods Based on the results of the single-factor tests and the Box-Behnken central composite experimental design principles, a response surface methodology which has three factors and three levels was designed to optimize the extraction process of Ardisia crenata based on the content of saponins. Results A maximal extraction yield of total saponins reached 2. 29% under the optimal conditions as follows:70% alcohol was used as extraction solvent with the material to liquid ratio of 116, the extraction time was 3 h at 70 ℃. Conclusion The optimized extraction process is accurate, reliable and practically valuable.
2.Drug Identification Marker Integrity Should be Guaranteed in Drug Retailing
China Pharmacy 2001;0(09):-
OBJECTIVE:To ensure safe and effective drug use.METHODS:The necessity and ways to ensure the integrity of drug identification markers were discussed.RESULTS&CONCLUSIONS:The completed drug identification markers in the course of retailing are essential for achieving the function of drugs and assuring the safety and the effectiveness of drug use.
3.Pseudotemporal lobe epilepsy
Chinese Journal of Neurology 2021;54(5):514-518
Pseudotemporal lobe epilepsy refers to an electroencephalogram (EEG) ictal pattern that is localized to the temporal region and the clinical ictal symptoms like the temporal seizure, especially mesial temporal seizure. But the epileptogenic zone is on the extratemporal regions. It is not easy to diagnose pseudotemporal lobe epilepsy. There are difficulties to detect by scalp EEG, and stereoelectroencephalography is usually required for epileptogenetic zone localization. Pseudotemporal lobe epilepsy almost is refractory for antiepileptic drugs. But the situation is illustrated by the failure of temporal lobe surgery resection alone. Therefore, the good result is often obtained after an epileptogenic zone and symptomatic zone resection.
4.Targeting angiogenesis and vascular remodeling as a novel therapeutic approach to liver fibrosis.
Xun-xun WU ; Cai-zhen ZHANG ; Xin WANG ; Yong DIAO
Acta Pharmaceutica Sinica 2015;50(5):535-540
Development of liver fibrosis is closely associated with angiogenesis and abnormal vascular remodeling. Recent studies have highlighted the importance of angiogenesis and vascular remodeling in fibrogenesis, the results that inhibition of angiogenesis is effective in suppression of liver fibrosis demonstrate that therapies with several molecular targets against angiogenesis, inflammation and fibrosis might be beneficial for the treatment of cirrhosis. However, there is some evidence that inhibition of angiogenesis can even worsen fibrosis. This article outlines recent advances regarding the interplay between inflammation, angiogenesis and fibrogenesis in terms of cellular and molecular mechanisms, and suggests a requirement of greater understanding to intervene in these key processes, such as liver sinusoidal endothelial cell fenestration and impact distinct chemokine actions driving monocyte migration and differentiation, for therapeutic benefit in the future.
Humans
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Inflammation
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therapy
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Liver Cirrhosis
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therapy
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Neovascularization, Pathologic
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therapy
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Vascular Remodeling
6.Clinical study on new seizure types in epilepsy patients
Yumei WEN ; Weiwei WANG ; Xun WU
Chinese Journal of Neurology 2010;43(1):31-34
Objective To study the percentage and cause of new seizure types in epilepsy patients and attempt to evaluate the value of new seizure types.Methods All 1074 eapilepsy patients were envolled in the retrospectively study.The types of seizure were diagnosed according to International League Against Epilepsy seizure classification and neuroimaging results of the patients.The Wilcoxon signed rank sum test was used to assess the difference of age at first seizure and mean duration of epilepsy patients with and without new seizure types.The chi-square test was used to compare the abnormal proportion of EEG and neuroimaging results of epilepsy patients.Results Two hundred and thirty-one(21.5%)of 1074 epilepsy patients experienced new seizure type.Five hundred and eighty-four patients had partial seizure with 132 (22.6%)experiencing new types of seizure while 490 patients had generalized seizure with 99(20.2%)experiencing new types of seizure.Five hundred and seventy-six(53.6%)had abnormal EEG and 237 (22.1%)had abnormal neuroimaging in 1074 epilepsy patients.A hundred and twenty-three(52.3%)of 231 patients with new seizure types had abnormal EEG,and 75(32.5%)of them had abnormal neuroimaging. The possible causes for the new types of seizure could be found in 41 patients.There were no significant difference in the age of the first onset between the patients with and without the new types of seizure while there was significant difference in the average course of disease between them(χ~2=18.511-23.836.P<0.05).There were significant differences in the rates of abnormal results of examination of nervous system and imaging outcomes.Conclusions There may be different causes of new seizure types.The study of new seizure types is helpful in diagnosis,treatment and prevention of epilepsy.
7.Epileptic seizures evoked by screen:four cases report
Weiwei WANG ; Xun WU ; Fengjiang SHENG
Chinese Journal of Neurology 2000;0(05):-
Objective Four cases of screen epilepsy were reported Methods Clinical analysis of four cases of TV epilepsy Results Of the four cases, two had the seizures evoked by changing channel of TV set only, one evoked by watching TV, and the other had the seizure triggered by video game. The seizures of two cases showed GTCS, one case showed partial seizure with secondarily generalized seizure, and the other showed partial seizure and absence Conclusion Screen epilepsy may have several seizure types, not only have GTCS but also have partial seizure and absence.
8.Type II Respiratory Failure Treated by Inhalation of Ultrasoinic Spraying of Tongguanye with Additives
Xun CHI ; Huanlin WU ; Xu ZOU
Journal of Traditional Chinese Medicine 1992;0(09):-
To investigate into the effect of ultrasonic - spraying of Chinese Materia medica on respiratory failure, the remedy produced by our hospital was studies for the treatment of 27 cases of such disorder (type II). with another 30 cases treated by coramine as control. Results revealed, for the treatment group, total markedly effective rate was 70. 3%, SaO2 increased to 38. 4%. The rate of amelioration of coughing, dyspnea, sputum and average treating time for the treatment group were all significantly different from the control group (P
9.Effects of topiramate on quantitative pharmacoelectroencephalography
Weiwei WANG ; Jianchuan LI ; Xun WU
Chinese Journal of Neurology 2001;0(03):-
Objective To investigate the influence of topiramate(TPM) on quantitative pharmacoelectroencephalography (QPEEG) in normal subjects and epilepsy patients. Methods EEG were recorded in normal and epileptic subjects prior to and at 0.5,1,2,4,6,8,12,24 hours after the administration of single dose of TPM.The EEG power spectral activity including the absolute power,percent of power,total power in both occipital and total power of the whole scalp areas were calculated through 30 s epochs without artifacts after each recording.The statistical difference between baseline assessment and each post-drug time point was analyzed by the Wilcoxon matched-paired rank test. Results The power of sloe wave(peak value 66.76 ?V 2),?1-band (peak value 57.33 ?V 2)and total power (peak value 385.12 ?V 2)was increased after the administration of TPM and the total power of the whole scalp areas was also increased(peak value 2 500.75?V 2).The percent of power of ?-band(peak value 12.4%) and ?1-band(healthy control,peak value 17.5%) or ?-band(patient,peak value 13.94%)was increased,while ?3-band(healthy control,lowest value 10.4%) decreased. Conclusion TPM might change the background activity of EEG that was different from other antiepilepsy drugs.
10.Treatment of proximal ureteral calculi with mini-percutaneous nephrolithotomy
Guohua ZENG ; Xun LI ; Kaijun WU
Chinese Journal of Urology 2001;0(10):-
Objective To evaluate mini-percutaneous nephrolithotomy in treating proximal ureteral calculi. Methods 109 patients underwent mini-percutaneous nephrolithotomy for proximal ureteral calculi from March 1998 to July 2001 were reviewed and evaluated. Results All the 109(100%) were rendered stone-free at 1 session.The average operation time was 60 munites,the estimated blood loss volume 25 ml and the average hospitalization 7 days.No major complications were noted. Conclusions Mini-percutaneous nephrolithotomy is safe and effective in treating proximal ureteral calculi and is less invasive for the patients.