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1.
Article in Chinese | WPRIM | ID: wpr-906390

ABSTRACT

Objective:To explore the antidepressant mechanism of Yinxing Mihuan oral solution (YMO) by investigating its effect on depression model rats. Method:The depression rats were induced by isolation combined with chronic unpredictable mild stress (CUMS) and then randomly divided into model group, fluoxetine group (10 mg·kg<sup>-1</sup>) and high-dose (618 mg·kg<sup>-1</sup>) and low-dose (309 mg·kg<sup>-1</sup>) YMO groups. A blank control group was also set up and ten rats were included in each group. Modeling lasted for 21 consecutive days, and rats were administered the 8th day after stimulation at a dose of 10 mL·kg<sup>-1</sup> for 14 days, except those in the blank control and model groups which were given distilled water. Afterward, the sucrose preference test, open field test, tail suspension test were carried out. The pathological changes of hippocampus in depression rats were observed after hematoxylin-eosin (HE) staining. The content of interleukin-1<italic>β </italic>(IL-1<italic>β</italic>), interleukin-6 (IL-6) and tumor necrosis factor-<italic>α </italic>(TNF-<italic>α</italic>) in the hippocampus of rats in each group and the expression of NOD-like receptor 3 (NLRP3) and other proteins in its related activation signaling pathways were detected with multi-factor detection (Luminex) and Western blot. Result:After 14 days of continuous administration, compared with the blank control group, the model group witnessed significantly reduced sugar water consumption rate and the times of rearing and significantly prolonged cumulative time of immobility during tail suspension (<italic>P</italic><0.05, <italic>P</italic><0.01). Compared with the model group, the fluoxetine group and the high-dose YMO group saw increases in the times of rearing, times of crossing and sugar water consumption rate and a significant decrease in the cumulative time of immobility during tail suspension (<italic>P</italic><0.05, <italic>P</italic><0.01). The results of HE staining showed that the neurons in the hippocampus of rats in the high-dose YMO group were arranged in order and slightly loosened, without obvious microglia infiltration observed. The levels of IL-1<italic>β</italic>, IL-6 and TNF-<italic>α</italic> in the hippocampus of the model group increased significantly as compared with the blank control group (<italic>P</italic><0.05, <italic>P</italic><0.01), and their content in the high-dose YMO group was significantly lowered in the comparison with the model group (<italic>P</italic><0.05, <italic>P</italic><0.01). Molecular biology experiments demonstrated that compared with the results of blank group, the expression of purinergic receptor P2X7 (P2RX7), NLRP3, apoptosis-associated speck-like protein (ASC), Caspase-1 and IL-1<italic>β</italic> remarkably increased in the model group (<italic>P</italic><0.05, <italic>P</italic><0.01). Additionally, the expression of P2RX7, NLRP3, ASC, Caspase-1 and IL-1<italic>β </italic>was significantly inhibited in the fluoxetine group and the high-dose YMO group compared with the model group (<italic>P</italic><0.05, <italic>P</italic><0.01). Conclusion:YMO can improve the depression-like behaviors of rats induced by isolation combined with CUMS, and its mechanism of action is related to the regulation of the P2RX7/NLRP3 signaling pathway.

2.
Article in Chinese | WPRIM | ID: wpr-862710

ABSTRACT

<b>Objective::Evaluate the effects of Danhong injection for perioperative percutaneous coronary intervention (PCI) on cardiac function and thrombolysis in myocardial infarction (TIMI) in patients with acute myocardial infarction (AMI). <b>Method::Computer retrieving CNKI, Wanfang database, VIP database, PubMed, CBM, Web of Science, The Cochrane Library, gathering Danhong injection in percutaneous coronary intervention perioperative application in the treatment of acute myocardial infarction clinic trials. The Cochrane risk evaluation is adopted to improve the quality of literature evaluation, with Revman 5.3 software for Meta-analysis. <b>Result::Participants included in 12 clinic trials contains a total of 1 131 patients, including 569 patients in Danhong treatment and 562 patients in control group. The results showed that compared with conventional treatment, Danhong injection treated patients had LVEF increased obviously [mean difference (MD)=6.62, 95% confidence interval (CI) (4.91, 8.34), <italic>P</italic><0.000 01], the number of TIMI class 3 patients significantly increased[relative risk (RR)=0.22, 95%CI(0.12, 0.41), <italic>P</italic><0.000 01], and BNP levels significantly decreased [MD=151.86, 95%CI (-247.00, -56.72), <italic>P</italic>=0.002]. <b>Conclusion::Danhong injection can improve the function of acute myocardial infarction after percutaneous coronary intervention.

3.
Article in Chinese | WPRIM | ID: wpr-801748

ABSTRACT

Coronary heart disease (CHD) is one of the leading causes of death in the world and has become a major public health problem worldwide. CHD belongs to the category of "chest stuffiness" in traditional Chinese medicine, and the blood stasis syndrome is the most common syndrome.Danhong injection is prepared from the extract of Salviae Miltiorrhizae Radix et Rhizoma and Carthami Flos. It has the functions of promoting blood circulation and removing blood stasis. It has anti-inflammatory damage, anti-apoptosis, protection of vascular endothelium, inhibition of platelet aggregation, anti-hyperlipidemia, anticoagulation, improvement of blood rheology and other effects.It also could improve myocardial ischemia and relieve angina symptoms.Danhong injection is widely used in various stages of CHD, including stable angina pectoris, unstable angina pectoris, acute myocardial infarction, postoperative percutaneous coronary intervention(PCI), ischemic cardiomyopathy, CHD with arrhythmia, CHD with hyperlipidemia, CHD with heart failure and CHD with diabetes.

4.
Acta Pharmaceutica Sinica ; (12): 701-709, 2019.
Article in Chinese | WPRIM | ID: wpr-780150

ABSTRACT

Danhong injection (DHI) and ceftriaxone sodium were used in combination based on their experimental uses in clinic. This study was designed to investigate the impact of ceftriaxone on pharmacokinetics and pharmacodynamics of the phenolic acids from DHI. After administration of DHI for 7 d, ceftriaxone (CFTX) was combined with DHI for the next 7 d in adult male Sprague-Dawley (SD) rats. All the drugs were administered through caudal vein. UHPLC-TQ-MS was applied in determining the plasma concentration of p-coumaric acid (p-CA), salvianolic acid D (SaD), rosmarinic acid (RA) and salvianolic acid B (SaB). The pharmacokinetic parameters of the combination group or the Danhong injection alone group were calculated by statistical moment method, Cmax and the average of the area under the curve AUC0-t using 90% confidence interval of the bioequivalence and bioavailability degree module in DAS 3.2.8 statistic software. The results showed that Cmax of p-CA, SaD, RA and SaB were unqualified within 90% confidence intervals for bioequivalence statistics. And the results showed that AUC0-t of SaD, RA and SaB within 90% confidence intervals for bioequivalence statistics were unqualified. There were no significant difference in the tmax (P>0.05). The results of anticoagulation in vivo showed that the international normalized ratio (INR), prothrombin time (PT), thrombin time (TT) and activated partial thromboplastin time (APTT) were significantly increased when combined with CFTX (P<0.05 or P<0.01). The results in antithrombotic effects revealed that the thromboxane B2 (TXB2) level in serum was significantly decreased (P<0.01) in the combination group compared with Danhong injection alone. However, there was no significant difference in antiplatelet effects. These results suggest that CFTX may enhance the anticoagulation and antithrombotic effects of DHI through altering pharmacokinetics and pharmacodynamics in SD rats.

5.
Article in Chinese | WPRIM | ID: wpr-771498

ABSTRACT

To explore the regularity of traditional Chinese medicine(TCM) prescriptions for cardio-cerebrovascular diseases,the core drug groups with common therapeutic effects on cerebrovascular diseases represented by stroke and cardiovascular diseases represented by coronary artery disease were extracted,and their consistency and difference in the treatment of different diseases were analyzed.A total of 388 Chinese patent medicines were collected for the treatment of cerebrovascular diseases,cardiovascular diseases and cardio-cerebrovascular diseases.The dominant and recessive patterns of Chinese patent medicines in clinical use were found by "frequency analysis","compatibility analysis" and "network analysis" respectively.According to the findings of the three parts,Salviae Miltiorrhizae Radix et Rhizoma,Chuanxiong Rhizoma,Carthami Flos and Astragali Radix have a high frequency of use in the treatment of brain disease,heart disease and both,with frequent combined medication.Data mining confirmed the core drug combinations for the treatment of cerebral and cardiac vascular diseases,so as to reveal the similarities and differences in the drug use of Chinese medicine for these diseases,and provide a basis for the rational use of traditional Chinese medicine in clinical practice.This analysis also defines a new direction for the future development of prescription combinations for different indications of cerebral and cardiac diseases.


Subject(s)
Cardiovascular Diseases , Drug Therapy , Cerebrovascular Disorders , Drug Therapy , Data Mining , Drugs, Chinese Herbal , Therapeutic Uses , Humans , Medicine, Chinese Traditional , Prescriptions
6.
Article in Chinese | WPRIM | ID: wpr-335900

ABSTRACT

To evaluate the promoting blood circulation and removing blood stasis effects of Danshen-Honghua(DH) herb pair with different preparations (alcohol, 50% alcohol and water) on blood rheology and coagulation functions in acute blood stasis rats, and optimize the best preparation method of DH based on principal component analysis(PCA), hierarchical cluster heatmap analysis and multi-attribute comprehensive index methods. Ice water bath and subcutaneous injection of adrenaline were both used to establish the acute blood stasis rat model. Then the blood stasis rats were administrated intragastrically with DH (alcohol, 50% alcohol and water) extracts. The whole blood viscosity(WBV), plasma viscosity(PV), erythrocyte sedimentation rate(ESR) and haematocrit(HCT) were tested to observe the effects of DH herb pair with different preparations and doses on hemorheology of blood stasis rats; the activated partial thromboplastin time(APTT), thrombin time(TT), prothrombin time(PT), and plasma fibrinogen(FIB) were tested to observe the effects of DH herb pair with different preparations on blood coagulation function and platelet aggregation of blood stasis rats. Then PCA, hierarchical cluster heatmap analysis and multi-attribute comprehensive index methods were all used to comprehensively evaluate the total promoting blood circulation and removing blood stasis effects of DH herb pair with different preparations. The hemorheological indexes and coagulation parameters of model group had significant differences with normal blank group. As compared with the model group, the DH herb pair with different preparations at low, middle and high doses could improve the blood hemorheology indexes and coagulation parameters in acute blood stasis rats with dose-effect relation. Based on the PCA, hierarchical cluster heatmap analysis and multi-attribute comprehensive index methods, the high dose group of 50% alcohol extract had the best effect of promoting blood circulation and removing blood stasis. Under the same dose but different preparations, 50% alcohol DH could obviously improve the hemorheology and blood coagulation function in acute blood stasis rats. These results suggested that DH herb pair with different preparations could obviously ameliorate the abnormality of hemorheology and blood coagulation function in acute blood stasis rats, and the optimized preparation of DH herb pair on promoting blood effects was 50% alcohol extract, providing scientific basis for more effective application of the DH herb pair in modern clinic medicine.

7.
Chinese Medical Journal ; (24): 179-186, 2017.
Article in English | WPRIM | ID: wpr-303178

ABSTRACT

<p><b>BACKGROUND</b>The molecular mechanisms of Shenxianshengmai (SXSM), a traditional Chinese medicine, on bradycardia have been incompletely understood. The study tried to investigate the gene expression profile and proteomics of bradycardia rabbits' hearts after SXSM treatment.</p><p><b>METHODS</b>Twenty-four adult rabbits were randomly assigned in four groups: sham, model, model plus SXSM treatment, and sham plus SXSM treatment groups. Heart rate was recorded in all rabbits. Then, total RNA of atria and proteins of ventricle were isolated and quantified, respectively. Gene expression profiling was conducted by gene expression chip, and quantitative real-time reverse transcription-polymerase chain reaction (RT-PCR) was performed to confirm the results of gene expression chip. We used isobaric tags for elative and absolute quantitation and Western blotting to identify altered proteins after SXSM treatment.</p><p><b>RESULTS</b>There was a constant decrease in the mean heart rate (32%, from 238 ± 6 beats/min to 149 ± 12 beats/min) after six weeks in model compared with that in sham group. This effect was partially reversed by 4-week SXSM treatment. Complementary DNA microarray demonstrated that the increased acetylcholinesterase and reduced nicotinic receptor were take responsibility for the increased heart rate. In addition, proteins involved in calcium handling and signaling were affected by SXSM treatment. Real-time RT-PCR verified the results from gene chip. Results from proteomics demonstrated that SXSM enhanced oxidative phosphorylation and tricarboxylic acid (TCA) cycle in ventricular myocardium to improve ATP generation.</p><p><b>CONCLUSIONS</b>Long-term SXSM stimulates sympathetic transmission by increasing the expression of acetylcholinesterase and reduces the expression of nicotinic receptor to increase heart rate. SXSM also restored the calcium handling genes and altered genes involved in signaling. In addition, SXSM improves the ATP supply of ventricular myocardium by increasing proteins involved in TCA cycle and oxidation-respiratory chain.</p>


Subject(s)
Animals , Bradycardia , Drug Therapy , Metabolism , Drugs, Chinese Herbal , Therapeutic Uses , Heart Rate , Proteomics , Rabbits , Random Allocation , Reverse Transcriptase Polymerase Chain Reaction
8.
Article in Chinese | WPRIM | ID: wpr-338183

ABSTRACT

The Concurrent treatment of the brain and heart (CTBH) theory is proposed based on traditional Chinese medical theory and clinical practice. In this study, a framework for the pharmacological research platform was established to investigate the principles of concurrent treatment of the brain and heart. The platform for CTBH includes several key techniques for network modeling, discovery of active substances, dissecting mechanism of action and investigation of pharmacokinetic property of TCM. Taking network modeling of CTBH as an example, using database search, literature mining, network construction and module analysis, the that network modules closely associated with the pathological progress of cardiovascular and cerebrovascular diseases were identified, while further functional enrichment analysis of these modules indicated that the key biological processes included oxidative stress, metabolism and inflammation. GSK3B, NOTCH1, CDK4 were identified as key nodes in these network modules. The above-mentioned platform was applied to construct component-biomolecules network of Danhong injection for the identification of common targets and pathways. Among them, GSK3B had the highest correlation with the composition of Danhong injection in the network, and the biological function of whose cluster was related to cell oxidative stress. Based upon results of network analysis, validation experiments suggested that Danhong injection significantly improved the survival rate of oxidative injured myocardial cells and nerve cells, and the protective effect was related to the increase of phosphorylated GSK3β protein expression. Moreover, extracts of Salviae Miltiorrhizae Radix et Rhizoma and Carthami Flos exerted the synergisticcytoprotective effect. The results indicated that the mechanism of treatment of cardiovascular and cerebrovascular diseases of Danhong injection could be studied through network modeling and other methods. In summary, the proposed pharmacological platform provided a feasible way for revealing the mechanism of CTBH by using modern scientific methods.

9.
Article in Chinese | WPRIM | ID: wpr-258456

ABSTRACT

To investigate the stability and the conversion rules of cantharidin and cantharidic acid contained in the Mylabris aqueous solution under different conditions. The contents of cantharidin and cantharidic acid under different conditions (pH, temperature and light) were determined by HPLC-TQ-MS. The results showed that the content of cantharidin was gradually decreased with the rising of pH value, while on the contrary, the content of cantharidic acid was increased gradually; after Mylabris aqueous solution with different pH values were placed at 25, 40 ℃ and 25 ℃ respectively for lighting for 90 days, the samples were collected for analysis. The results showed the contents of cantharidin and cantharidic acid were changed greatly in the first 10 days, mainly including the decrease of cantharidic acid and increase of cantharidin when the solution was acidic, and the increase of cantharidic acid and decrease of cantharidin when the solution was alkaline. After that, the contents of the above two components basically remained stable. This study revealed that pH was the main factor to affect the contents of cantharidin and cantharidic acid, and they could be converted into each other with the changes of pH value. High temperature and light can accelerate the speed of achieving such balance. The study can provide certain reference for the quality control of the medicines using the Mylabris as raw material.

10.
Article in Chinese | WPRIM | ID: wpr-258449

ABSTRACT

Naoxintong capsule has beneficial effects for activating blood circulation, dispersing blood stasis and dredging collateral. It is widely used in the treatment of coronary heart disease, angina pectoris, stroke and cardiovascular disease. However, the pharmacodynamic basis and possible mechanism of its preventive effects are not clear. In this study, 10 male and 10 female C57BL/6 mice were used, and were randomly divided into the control group (saline) and Naoxintong group. Adaptively fed for 7 days in common conditions, mice were given Naoxintong capsule or saline for 3 days via intragastric administration. Serum was collected from 6 mice in each group 1 h after the last administration. Serum proteins were prepared to do two-dimensional gel electrophoresis. Then image analysis and mass spectrometry detection were carried out to screen and identify the differentially expressed proteins and make bioinformatics analysis. It was found that 24 differentially expressed proteins between Naoxintong group and control group. Compared with the control group, 12 proteins were increased, and 12 were decreased. The proteins were involved in apoptosis signal pathway and vascular endothelial growth factor signal transduction pathway, in which vasohibin-1 is a negative feedback regulation factor in angiogenesis. Western blot showed that the expression of vasohibin-1 in Naoxintong group was reduced, which is consistent with the result in two-dimensional electrophoresis. Serum proteins expression is different between Naoxintong and control groups. The targets of these differentially expressed proteins include endothelial cells, inflammatory cells and platelets. The changes on proteins showed that Naoxintong capsule may ameliorate coronary heart disease and ischemic cerebrovascular disease, and provide potential biological markers to prevent ischemic disease.

11.
Article in Chinese | WPRIM | ID: wpr-230084

ABSTRACT

It is necessary to investigate the influence of the rationality of clinical drug use on the benefit and risk factors of traditional Chinese medicine injections. The retrospective survey was based on the medical records and information of 4 950 patients who used Danhong injection in the HIS database of the first affiliated hospital of Nanjing University of Chinese Medicine from 2013 to 2014. The basic statistical methods and associated rules analysis were utilized to analyze the HIS information of these patients, including the basic information, the diagnosis, the department, the dosage, the usage of medication, the drug combination and the adverse reactions. And the rationality analysis of the clinical application of Danhong injection was carried out to investigate relevant factors of the adverse reactions. The results showed that most cases came from the department of cardiology (51.95%) and encephalopathy center (20.67%). In the statistical period, the patients aged above 40 years old accounted for 96.65%. And the two western medicine diagnosis items with the highest confidence level were coronary heart disease and angina pectoris (97.15%), while the three items were coronary heart disease, angina pectoris and hypertension (97.02%). The irrational indications were mainly hypertension (12.93%) and diabetes (4.55%). All of them were diagnosed as blood stasis syndrome by the traditional Chinese medicine. About 98.93% of the single dosage was within the range stipulated on package insert, the duration mainly ranged between 1 and 21 days, and 97.64% of the menstrua contained 0.9% NS and 5% GS. According to the medication records,99.26% were the use of combined drugs, with 8.41 drugs on average. Antiplatelet drugs (72.04%) were the most frequently combined with western medicine, followed by the cholesterol-regulating drugs (64.86%) and the cerebrovascular drugs (60.26%). When used in the combination with antibiotics for the infection, cephalosporin antibiotics were the most frequently applied (8.81%). When used with traditional Chinese medicines, traditional Chinese medicines for activating blood circulation and removing blood stasis or monomer traditional Chinese medicine injections (28.93%) were the dominance, in which Gastrodin injection was the most frequently applied (16.23%). And 12 cases of adverse reactions were reported, with the ADR rate of 0.24%. The indications, solvent compatibility and irrational drug combination may be the potential risk factors for ADRs induced by Danhong injection. Further experiments are required to evaluate the benefits and risks in these three aspects.

12.
Chinese Medical Journal ; (24): 2557-2564, 2015.
Article in English | WPRIM | ID: wpr-315293

ABSTRACT

<p><b>BACKGROUND</b>Premature ventricular contractions (PVCs) are common in the general population, and frequent PVCs may result in the poor quality of life or even the damage of cardiac function. We examined the efficacy and safety of a traditional Chinese medicine Wenxin Keli for the treatment of frequent PVCs among a relatively large Chinese cohort.</p><p><b>METHODS</b>We performed a randomized, double-blind, placebo-controlled, parallel-group, multicenter trial. A total of 1200 eligible participants were randomly assigned in a ratio of 1:1 to receive Wenxin Keli or the placebo for 4 weeks. The primary and secondary endpoint was the change of PVC numbers and PVC-related symptoms after a 4-week treatment compared with baseline, respectively. In addition, vital signs, laboratory values, and electrocardiographic parameters were assessed in a safety analysis.</p><p><b>RESULTS</b>At the initial evaluation, no significant differences in the baseline characteristics were observed between the Wenxin Keli group and the placebo group. A smaller number of PVCs was observed after the 4-week treatment than at baseline, in both the Wenxin Keli group (5686 ± 5940 vs. 15,138 ± 7597 beats/d, P < 0.001) and the placebo group (10,592 ± 8009 vs. 14,529 ± 5929 beats/d, P < 0.001); moreover, the Wenxin Keli group demonstrated a significantli greater reduction in the frequency of PVCs than the placebo group (P < 0.001). In a full analysis set, patients in the Wenxin Keli group exhibited significantly higher total effective responses in the reduction of PVCs compared to those in the placebo group (83.8% vs. 43.5%,P < 0.001). The per-protocol analysis yielded similar results (83.0% vs. 39.3%,P < 0.001). Treatment with Wenxin Keli also demonstrated superior performance compared to the placebo with respect to PVC-related symptoms. No severe adverse effects attributable to Wenxin Keli were reported.</p><p><b>CONCLUSIONS</b>Wenxin Keli treatment effectively reduced the overall number of PVCs and alleviated PVC-related symptoms in patients without structural heart diseases and had no severe side effects.</p>


Subject(s)
Adult , Aged , Double-Blind Method , Drugs, Chinese Herbal , Therapeutic Uses , Female , Humans , Male , Middle Aged , Quality of Life , Treatment Outcome , Ventricular Premature Complexes , Drug Therapy
13.
Article in Chinese | WPRIM | ID: wpr-294048

ABSTRACT

<p><b>OBJECTIVE</b>To establish a rapid quantitative analysis method for the quality control of Danhong injection extraction using near-infrared (NIR) spectroscopy.</p><p><b>METHOD</b>Online collecting the NIR spectra during the mixed extraction process of Salvia miltiorrhiza and Carthamus tinctorius, partial least squares regression (PLSR) models were developed for the quality indicators rosmarinic acid (RA), salvia acid B (SaB), lithospermic acid (LA), hydroxysafflor yellow A (HSYA) and solid content (SSC), with HPLC and weight-loss method as reference methods.</p><p><b>RESULT</b>The correlation coefficients of the cross validation for RA, SaB, LA, HSYA and SSC were 0.909 3, 0.915 2, 0.901 9, 0.747 7 and 0.931 4, respectively. And the root mean square errors of cross validation (RMSECV) were 0.012 1, 0.251, 0.017 7, 0.038 1 g x L(-1) and 0.359%, respectively.</p><p><b>CONCLUSION</b>In this study, NIR spectroscopy was successfully applied to achieve the real-time determination of the contents of RA, SaB, LA and SSC, while the performance of the HSYA calibration model needed to be improved.</p>


Subject(s)
Carthamus tinctorius , Chemistry , Chemistry, Pharmaceutical , Methods , Reference Standards , Chromatography, High Pressure Liquid , Drugs, Chinese Herbal , Online Systems , Salvia miltiorrhiza , Chemistry , Spectroscopy, Near-Infrared , Methods
14.
Article in Chinese | WPRIM | ID: wpr-294047

ABSTRACT

Extraction process trajectory of Danhong injection by near-infrared (NIR) spectroscopy in conjunction with multivariate data analysis techniques was developed for in-line monitoring of extraction process. To capture the variation of batch process, the use of score, Hotelling T2 and DModX control charts was investigated for real-time monitoring of extraction process. Various abnormal behaviors of the test batches were detected in time by comparing the extraction process trajectory. It was concluded that the process trajectory for in-line quality control based on NIR spectroscopy was a feasible technology tool of the total process quality control during traditional Chinese medicine (TCM) manufacturing process.


Subject(s)
Chemistry, Pharmaceutical , Methods , Reference Standards , Drugs, Chinese Herbal , Chemistry , Online Systems , Quality Control , Spectroscopy, Near-Infrared , Methods
15.
Article in Chinese | WPRIM | ID: wpr-294046

ABSTRACT

In this work, a feedforward control strategy basing on the concept of quality by design was established for the manufacturing process of traditional Chinese medicine to reduce the impact of the quality variation of raw materials on drug. In the research, the ethanol precipitation process of Danhong injection was taken as an application case of the method established. Box-Behnken design of experiments was conducted. Mathematical models relating the attributes of the concentrate, the process parameters and the quality of the supernatants produced were established. Then an optimization model for calculating the best process parameters basing on the attributes of the concentrate was built. The quality of the supernatants produced by ethanol precipitation with optimized and non-optimized process parameters were compared. The results showed that using the feedforward control strategy for process parameters optimization can control the quality of the supernatants effectively. The feedforward control strategy proposed can enhance the batch-to-batch consistency of the supernatants produced by ethanol precipitation.


Subject(s)
Chemical Precipitation , Chemistry, Pharmaceutical , Methods , Reference Standards , Drugs, Chinese Herbal , Chemistry , Quality Improvement , Salvia miltiorrhiza , Chemistry
16.
Article in Chinese | WPRIM | ID: wpr-294045

ABSTRACT

<p><b>OBJECTIVE</b>To establish a method integrating multi-targets for determining critical process parameters of the manufacturing process of traditional Chinese medicine.</p><p><b>METHOD</b>The ethanol precipitation process of Danhong injection was taken as an application case of the method established. Fractional factorial design of experiments were conducted. Mathematical models relating seven process parameters to ten targets in the ethanol precipitation process were established. Then the sums of the absolute values of the regression coefficients in the models were used to evaluate the criticality of process parameters.</p><p><b>RESULT</b>Water content in the concentrate, ethanol concentration and ethanol consumption were identified as the critical process parameters.</p><p><b>CONCLUSION</b>The method established can integrate multi-targets effectively for the evaluation of critical process parameters.</p>


Subject(s)
Chemical Precipitation , Chemistry, Pharmaceutical , Methods , Drugs, Chinese Herbal , Chemistry , Salvia miltiorrhiza , Chemistry
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