1.Overview of traditional Chinese medicine quality evaluation method based on overall research.
Hua JIANG ; Yuan GAO ; Jing-ming YANG ; Xiang-cai MENG
China Journal of Chinese Materia Medica 2015;40(6):1027-1031
The establishment of quality evaluation of traditional Chinese medicine system that not only accords with Chinese medicine function characteristics but also is recognized as international medical circles, is an arduous task in urgent need of solving the current modernization of traditional Chinese medicine in the process of internationalization. It is difficult to evaluate atraditional Chinese medicine by detection of single active components in traditional Chinesemedicinewiththe western medicine quality controlmethod due to the overall effects of traditional Chinese drugs, the components of the overall diversity, targets, and the complexity of the interaction between components of unpredictable make the Long-term since, domestic and foreign scholars continue to explore and put forward a series of quality evaluation of traditional Chinese medicine to promote the development of traditional Chinese medicine. This article summarized the related academic ideas and developments to, providea new thought and perspective for the quality control of traditional Chinese medicine.
Drug Evaluation
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methods
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standards
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Drugs, Chinese Herbal
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chemistry
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Humans
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Medicine, Chinese Traditional
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standards
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Quality Control
2.Effects of a polysaccharide from CCL on inhibiting oxygen free radical threshold of senile mice model
Xiguang CAI ; Aixia XU ; Bin GE ; Xiang GAO ; Shehua YANG
Journal of Third Military Medical University 2003;0(13):-
Objective To study the effect of a polysaccharide from cuscuta chinensis lam (PCCL) on antisenility and its mechanism. Methods Sixty Kunming mice were randomized into 6 groups. The three PCCL groups were administrated with PCCL of 100, 200, 400 mg?kg -1?d -1 orally, the positive control group with vitamin E of 200 mg?kg -1?d -1, the model group and control group with the same volume of control solution only. At the same time, the model group, the positive group and the three PCCL groups were subcutaneously injected of 5% D-gal at the dose of 0.5 ml at the nape, and the control with the same volume of saline solution. Seven weeks later, the MDA, SOD activity, GSH-PX activity in the liver and kidney of mice and lipofuscin (LF) in mouse brain were detected with the methods of TBA, Nitrate, DTNB and Sohal, respectively. The data were analyzed with SPSS software and the data between groups were analyzed with one-factor variance analysis. Results Thymus index and spleen index dropped, LF rose in brain, malondialdehyde (MDA) content rose and the activities of superoxide dismutase (SOD) and glutathione peroxidase (GSH-PX) dropped in liver and kidney in senile mouse model. PCCL administration of 100, 200, 400 mg?kg -1?d -1 made thymus index and spleen index rising, LF dropping in brain, MDA content dropping,SOD and GSH-PX LF rising in liver and kidney of senile mouse model. Conclusion PCCL may postpone senility, which mechanism probably connected with rising immunity, eliminating oxygen free radicals and antilipoperoxidation.
3.Distribution of Traditional Chinese Medical Syndromes and Clinical Characteristics of Influenza in South of Five Ridges
Liuliu YANG ; Xiaohong LIU ; Junxiang CAI ; Gao ZHANG
Journal of Guangzhou University of Traditional Chinese Medicine 2017;34(2):149-152
Objective To investigate the distribution of traditional Chinese medical syndromes and clinical characteristics of influenza in South of Five Ridges.Methods A retrospective analysis was carried out in 162 cases of influenza patients admitted from outpatient department,emergency department and inpatient department of the First Affiliated Hospital of Guangzhou University of Chinese Medicine from 2014 to 2016.The distribution of clinical manifestations and syndrome types of the included influenza patients was analyzed.Results The average age of the included influenza patients was 35.76 ± 11.4 years old.The clinical syndromes were mainly characterized by fever,aversion to cold and chills,fatigue and weakness.And damp-accumulation manifestations of heaviness in the body,poor appetite,dry mouth without willing to drink,nausea and vomiting were also predominant.The main syndrome types were wind-heat attacking defense phase syndrome,wind-cold fettering exterior syndrome,heat-toxin attacking lung syndrome,heat-toxin accumulating lung syndrome,and damp syndrome.Of the syndrome types,wind-heat attacking defense phase syndrome and heat-toxin attacking lung syndrome were the leading types,accounting for 77.79% and interweaving with damp syndrome and heat-damp syndrome.Conclusion The syndromes of influenza patients in South of Five Ridges are usually complicated by damp syndrome or damp-heat syndrome,and the predominant syndrome type is wind-heat interweaved with damp syndrome,which is correlated with the climate being damp and hot in South of Five Ridges.
4.Breeding of High-yield Lycopene Producing Strains of Streptomyces rimosus and Studies on Its Flask Culture Conditions
Min WANG ; Hui YANG ; Jun-Lian GAO ; Rong-Cai MA ;
China Biotechnology 2006;0(12):-
The antioxidant activity of lycopene is highest among the current carotenoids.Recently the researches on lycopene are focused on ingredient of functional foods in the world.The fermentation production of lycopene by Streptomyces rimosus was reported first time in China.The determination methods,such as spectrophotometric method and HPLC were constructed.Using a stain Fc of Streptomyces rimosus as a original strain,a high-yield lycopene producing mutant strain Fc' was selected after UV mutation.The lycopene yield of the strain is 2.5 times higher than the original strain Fc.The optimal fermentation conditions were determined by flask experiments,and the lycopene yield of strain Fc' reached 230mg/L in flask under the optimal fermentation condition,meanwhile the Streptomyces rimosus strain could produce purer lycopene without adding any blocking agents in its fermentation process.This results lay a good foundation for lycopene commercial production by fermentation using Streptomyces rimosus.
5.High resolution MR imaging of porcine coronary arterial wall in vitro
Tao LI ; Jianhua GAO ; Shaohong ZHAO ; Weihua ZHOU ; Zulong CAI ; Li YANG ; Liuquan CHENG ; Yuangui GAO
Chinese Journal of Medical Imaging Technology 2010;26(4):589-592
Objective To get a MR imaging protocol for coronary arterial wall in vitro. Methods MR examinations were performed in 10 fresh porcine hearts. Three dimensional fast imaging employing steady state acquisition (3D FIESTA) was used to delineate left anterior descending artery (LAD), while 2D spin-echo T1W was performed with 8-channel head surface coil, temporomandibular surface coil and knee coil with the same parameters. T1WI was obtained with 384×256 and 512×512 in matrix using temporomandibular surface coil, and then T1WI, PDW and T2WI with fat saturation were obtained with different NEX using temporomandibular surface coil after injecting Resovist in LAD. Signal of the LAD wall, lumen, fat tissue adjacent to LAD, myocardium of anterior part of interventricular septum and noise were respectively measured. Signal-to-noise ratio (SNR) of image, contrast to noise ratio (CNR) between the wall and lumen (CNR1), CNR between the wall and surrounding fatty tissue (CNR2) were calculated. Results The SNR and CNR1, CNR2 of SE T1WI with temporomandibular coil were higher than those with 8-channel head surface coil and knee coil. SNR and CNR1, CNR2 of SE T1WI with 384×256 matrix were higher than those with 512×512 matrix. SNR and CNR1, CNR2 using 3 NEX were the highest. Conclusion Good SNR and CNR of porcine coronary wall can be achieved using temporomandibular surface coil, 384×256 in matrix and NEX of 3.
6.Quick injection combining with slow infusion of contrast media on coronary MR angiography
Tao LI ; Shaohong ZHAO ; Zulong CAI ; Jianhua GAO ; Li YANG ; Liuquan CHENG ; Yuangui GAO
Chinese Journal of Radiology 2010;44(5):484-487
Objective To evaluate the effect of quick injection combining with slow infusion of Gd-DTPA on T1 relaxation of the blood. Methods Fifteen volunteers were recruited for coronary MRA study using a navigator-gated 3D-FIESTA sequence. Coronary MRA were acquired on the same segments two times at 5 minutes and 15 minutes after Gd-DTPA administration. Contrast agent was injected biphasically with 10 ml at a flow rate of 1.5 ml/s and 20 ml at 0. 05 ml/s to prolong the T1 relaxation effect. Signal-to-noise ratio (SNR) and contrast-to-noise ratio (CNR) were calculated pre- and post-contrast MRA. Image quality was compared using t-test. Results The SNR and CNR at 5 minutes after contrast injection (35.37 ±6. 84 and 21.57 ± 6. 08 ) were significantly higher than that of pre-contrast MRA ( 27.38 ± 6. 24 and 13.19 ±6. 50). The SNR at 15 minutes after contrast injection (33. 81 ±9. 43) was higher than that of precontrast MRA, but there was no statistically difference(t = 1. 885 ,P =0. 074). The CNR at 15 minutes after contrast injection (21.20 ± 7.65) was significantly higher than that of pre-contrast MRA. The SNR and CNR at 15 minutes after contrast injection were no significant different compared with those at 5 minutes after contrast injection. Conclusion T1-shorting effect in the blood can be prolonged by quick injection combining with slow infusion of Gd-DTPA ,which meet with the need of multiple scans of coronary MRA.
7.Analysis of combinated transcatheter hepatic artery chemoembolization and factors affecting the prognosis in patients with primary hepatic carcinoma.
Cai-Xia LI ; Yang ZHANG ; Li GAO
Chinese Journal of Oncology 2006;28(12):942-945
OBJECTIVETo evaluate the combinated transcatheter hepatic artery chemoembolization (TACE) and analyse the factors affecting prognosis in patients with primary hepatic carcinoma.
METHODS141 consecutive patients with primary hepatic carcinoma were treated, including 125 men and 16 women (mean age, 52 years; age range, 21 - 76 years). Combinated TACE procedures included TACE, TACE followed by surgical resection, TACE and percutaneous ethanol injection (PEI) and transcatheter hepatic artery infusion (TAI). The factors included sex, age, ALT, AFP, HBsAg, liver function (Child's system), the way of treatment, tumor size and number, serum albumin, portal cancerous thrombus, pathological type of tumors, and HBeAg. The Cox's regression analysis model was used to analyse the factors affecting the prognosis. P < 0.05 means statistically significant difference.
RESULTSThe total median survival time was 19 months and mean survival time 23.59 months. The total survival rates of 1, 2, 3, 5 years were 63.9%, 44.5%, 25.8% and 7.4%, respectively. Multivariable analysis revealed significant prognostic factors as follows: age, liver function, the way of treatment, portal cancerous thrombus and pathological types of tumors (chi2 = 45.993, P = 0.0001).
CONCLUSIONThe combinated TACE procedure is safe and effective. In this study, 5 factors directly influencing the prognosis are age, liver function, portal cancerous thrombus and pathological types of tumors are risk prognostic factors, and the way of treatment is a protective factor (chi2 = 45.993, chi2 = 0.0001).
Acetaldehyde ; administration & dosage ; Adult ; Age Factors ; Aged ; Antineoplastic Combined Chemotherapy Protocols ; therapeutic use ; Carcinoma, Hepatocellular ; pathology ; surgery ; therapy ; Chemoembolization, Therapeutic ; Combined Modality Therapy ; statistics & numerical data ; Female ; Follow-Up Studies ; Hepatectomy ; methods ; Humans ; Infusions, Intra-Arterial ; Injections, Intradermal ; Liver Neoplasms ; pathology ; surgery ; therapy ; Male ; Middle Aged ; Neoplastic Cells, Circulating ; pathology ; Portal Vein ; Prognosis ; Proportional Hazards Models ; Survival Analysis
9.Puma luciferase reporter gene construction and identification
Xin YANG ; Shi QIU ; Shouzhi GU ; Yun CAI ; Xing GAO ; Zejun LIU
Cancer Research and Clinic 2011;23(1):8-10
Objective To study the mechanism of p55 inducing cell apoptosis, the 180 bp fragment of Puma promoter was cloned into the pGL3-basic luciferase reporter vector. The biological activity of Pumareporter plasmid was verified by cell transfection. Methods The target fragments of Puma were amplified by RT-PCR method and the fragments were inserted into the pGL3-basic luciferase reporter vector. The acquired Puma-Luc plasmid was transfected into H1299 cell line and detected its activity. Results Sequencing indicated that the amplified Puma promoter is correct. Dual-luciferase Reporter Assay showed the Puma-Luc constructs have promoter activity. Conclusion The cloning of human Puma gene promoter and the construction of its reporter vector were successful. This study will lay the foundation for further research on the function of p53 inducing apoptosis through mitochondrial pathway.
10.The conflict monitoring of children with attention deficit hyperactivity disorder:an event-related potentials study
Jian GAO ; Suhong WANG ; Zhilong YANG ; Yili ZHANG ; Jing CAI ; Yanling REN ; Ling MA ; Xuan DONG
Chinese Journal of Behavioral Medicine and Brain Science 2010;19(11):975-977
Objective To compare the event-related potential(ERP) difference waveforms between attention deficit hyperactivity disorder (ADHD) children and normal children in the conflict task,and to investigate the neural mechanism of conflict monitoring of ADHD. Methods ERPs elicited by performing the spatial SimonStroop task were recorded in 32 children with ADHD and 32 normal children. The differences of ERP and behavior dren with ADHD(0.80±0. 11 ,0.87 ±0.08) were less than normal children (0.88 ±0.07,0.93 ±0. 04)in Sireaction time of ADHD group( (773.03 ±99.34)ms) in the Siin were longer than the control group( (737.21 ±81.40)ms) ,the differences had statistic significance (P<0. 05). 2. ERP results:the amplitude of N2 of the children with ADHD in the four conditions were smaller than the control group, the difference in Siin had statistic sigof prefrontal and anterior cingulate cortex of ADHD were weaker than the control group. Conclusions The results suggest that, due to the inadequate allocation of attention resources of the children with ADHD, they have conflict monitoring function defects compare with normal children. The function defects of conflict information processing related brain areas may be the main neural mechanism. The result of the behavior and ERP can become the reference indicator for the early diagnosis and treatment of ADHD.