1.Effects of Shengmai Injection on multiple organ failure in post cardiopulmonary resuscitation rabbits
Dong ZHANG ; Hongxiang LI ; Ying CHEN ; Yushan WANG
Chinese Journal of Emergency Medicine 2013;22(9):989-993
Objective To observe the effect of Shengmai Injection (a Chinese herbal medicine preparation) on the serum levels of TNF-α used as indicators of organ function in post cardiopulmonary resuscitation rabbits.Methods Rabbit cardiac arrest model was made with asphyxia by clamping the trachea of rabbit.A total of 30 rabbits were randomly (random number) divided into two groups,namely the normal saline group (n =15) and the Shengmai injection group (n =15).Rabbits in Shengmai injection group were injected with 2 ml/kg Shengmai Injection immediately at the beginning of cardiopulmonary resuscitation (CPR),and the same dose of Shengmai injection given 10 min after CPR.Rabbits in saline group were injected with the same volume of physiological saline instead at the same intervals as previous group.The rate of restoration of spontaneous circulation (ROSC) and survival rates at 6,12,24 and 48 h after ROSC were observed.The serum levels of TNF-α were measured by enzyme-linked immunosorbent assay (ELISA).Biochemical methods were used to detect myocardial MB-isoenzyme of creatine kinase (CK-MB),alanine aminotransferase (ALT),creatinine (Cr),glucose (Glu) and arterial partial pressure of oxygen (PaO2) before resuscitation and 12,24 and 48 h after ROSC simultaneously in the two groups.Results There was no statistically significant difference in the ROSC rate and survival rate after resuscitation between the two groups (P > 0.05).Before asphyxia,there was no significant difference in the level of TNF-α found between the two groups (P > 0.05),but at 12,24 and 48 h after ROSC,the levels of TNF-α in Shengmai group were much lower than those in Saline group (P < 0.05).At 24 h after ROSC,the levels of serum CK-MB,ALT,and Cr in Shengmai group were much lower than those in Saline group (P <0.05).Furthermore,at 48 h after ROSC,the levels of CK-MB and ALT in Shengmai group were still lower than those in Saline group (P < 0.05),but there was no significant difference in the level of Cr between the two groups (P > 0.05).There was also no significant difference in the blood glucose and arterial partial pressure of oxygen between the two groups (P > 0.05).Conclusions Shengmai Injection has significant inhibiting effect on the serum level of TNF-α in post cardiopulmonary resuscitation rabbits,and it also has more or less some degrees of protective effect on organ function of heart,liver and kidney in rabbits after ROSC.
2.Effect of shengmai injectio on restoration of spontaneous circulation and hemodynamics in the early stage of resuscitation in rabbit model of cardiac arrest
Dong ZHANG ; Yushan WANG ; Nan LI ; Hongxiang LI
Chinese Journal of Emergency Medicine 2010;19(10):1036-1039
Objective To explore the effect of shengmai injection (a Chinese herb preparation made from radix astragali and radix rehmanniae) on restoration of spontaneous circulation (ROSC) and hemodynamics in the early stage of resuscitation (CPR) in animal models of cardiac arrest, providing adjuvant support to stabilize the circulation for the facilitation of follow-up study in the resuscitated animal. Method A total of 30 rabbits were randomly(random number) divided into two groups, shengmai group and saline group, ( n = 15 in each group).Asphyxia method was used to establish animal models of cardiac arrest. In the shengmai group, 2 mL/kg shengmai injection was given immediately just after initiation of CPR and the same dose of shengmai injectio was given once again 10 minutes after ROSC. In the saline group, saline was administered in the same volume and at the same given time instead of shengmai injectio. The duration of cardiac arrest of rabbits, and the lengths of time consumed for ROSC and for resume of spontaneous respiration after CPR as well as the rate of ROSC obtained and 6-hours survival rate after CPR were documented. The changes of hemodynamics including LVSP, + dp/dtmax,- dp/dtmax, LVEDP were recorded before asphyxia,just after the emergence of ROSC and 30 min,60 min, and 120 min after ROSC. Results There were no significant differences in duration of cardiac arrest, length of time consumed for the resume of spontaneous respiration, rate of ROSC obtained and 6-hours survival rate between two groups (P > 0.05), but the ROSC emerged sooner in shengmai group. The LVSP, + dp/dtmax and- dp/dtmaxsignificantly lower 30 min, 60 min and 120 min after ROSC then those before asphyxia in both groups, but LVEDP increased after ROSC (P <0.05). At the corresponding intervals after ROSC, the values of LVSP, + dp/dtmaxand - dp/dtmax in the shengmai group were higher than those in the saline group, and the values of LVEDP in the shengmai group were lower than those in the saline group ( P < 0. 05). Conclusions Shengmai injectio used in rabbits with cardiac arrest can shorten the time consumed for ROSC after CPR, improve cardiac diastolic and systolic function after R OSC, stabilizing the hemodynamics after resuscitation.
3.The employment of acute gastrointestinal injury grading system in the strategy of diagnosis and treatment of severe acute pancreatitis in patients for guiding nutritional support
Dong ZHANG ; Weiyun PAN ; Lili DING ; Yushan WANG
Chinese Journal of Emergency Medicine 2015;24(7):784-787
Objective To study the utility of acute gastrointestinal injury (AGI) grading system in the strategy of diagnosis and treatment of severe acute pancreatitis (SAP) in patients for the guidance of nutritional support.Methods Forty-five patients with SAP admitted to the ICU from January 2012 to December 2013 were enrolled for study.The diagnosis of SAP was made as per the 2013 Chinese guideline of dliagnosis and treatment of acute pancreatitis.The patients with aged < 18 years,length of hospital stay <72 h,and those included in other experimental study were excluded.The patients were divided into two groups:AGI group (n =24) and control group (n =21).There were no statistically significant differences in age,gender,APACHE Ⅱ between two groups (P > 0.05).The length of hospital stay,in-hospital mortality,the incidence of complications such as infection,the time of starting enteral nutrition (EN) and reaching caloric goal were compared between the two groups.The t test or Mann-Whitney U test was used for continuous variables and x2 test or Fisher exact test was used for categorical variables,and P < 0.05 was considered statistically significant.Results (1) Between two groups,there were statistically significant differences in the time of starting EN (2.0 d vs.5.7 d,Z =-4.149,P <0.01) and reaching caloric goal (5.5 d vs.10.4 d,Z =-3.392,P =0.001).(2) Between two groups,there were statistically significant differences in the incidence of pneumonia (25% vs.57.14%,P =0.028 1) and catheterrelated infection (0% vs.23.81%,P =0.039 4).(3) Between two groups,there was no statistically significant difference in in-hospital mortality (16.67% vs.33.33%,P =0.194 3).In addition,there was significant difference in length of hospital stay between two groups (23.13 ± 10.58) d vs.(31.10 ± 15.33) d,P =0.046.Conclusions The diagnosis and treatment strategy based on AGI grading system is associated with earlier initiation of EN and reaching caloric goal,and partly reduces the incidence of infections and shortens the length of hospital stay,in the meantime,provides guidance for the rationale of nutritional support in the patients with SAP.
4.An analysis of relevant factors influencing the prognosis of post cardiac arrest syndrome
Dong ZHANG ; Shujie ZHAO ; Nan LI ; Zhongmin LIU ; Yushan WANG
Chinese Critical Care Medicine 2015;31(3):175-179
ObjectiveTo investigate the relevant factors influencing the incidence and mortality of post cardiac arrest syndrome (PCAS), and to provide the basis of improvement of resuscitation rate.Methods A single center retrospective study of cardiopulmonary resuscitation (CPR) according to Utstein model was conducted. A clinical case report form was designed to collect clinical data. The clinical data of patients whose spontaneous circulation was restored (ROSC)> 24 hours in intensive care unit (ICU) of the First Hospital of Jilin University from January 2008 to June 2014 were collected and analyzed. The relevant risk factors of the incidence and mortality rate of PCAS were screened and analyzed by multivariate logistic regression analysis.Results① Successful CPR was achieved in 93 patients, of whom 83 patients were shown to have systemic inflammatory response syndrome (SIRS), and 75 patients suffered from PCAS (80.65%). Among them 49 died, and 18 patients who did not suffer from PCAS survived.② The age, gender, history of previous chronic disease, site of occurrence of cardiac arrest, type of rhythm when cardiac arrest occurred, and dosage of adrenaline showed no significant influence on the incidence of PCAS. The incidence of PCAS was elevated when defibrillation was done more than 3 times (χ2= 10.806,P= 0.001), SIRS occurred after ROSC (χ2= 46.687,P< 0.001), interval between collapse and first defibrillation over 5 minutes (χ2 = 6.429,P = 0.011), interval between collapse and CPR longer than 5 minutes (χ2 = 4.638,P = 0.031), interval between collapse and administration of first resuscitation medication> 5 minutes (χ2 = 4.190,P = 0.041), and ROSC time was longer than 10 minutes (χ2 = 20.042,P< 0.001). Bivariate correlation showed that interval between collapse and CPR, interval between collapse and administration of first resuscitation medications, and ROSC time were all correlated (r1 = 0.677,r2 = 0.481,r3 = 0.617, allP< 0.001).③ There were no significant relations between the prognosis of PCAS patients and times of defibrillation, the amount of adrenaline used, and interval between collapse and first defibrillation. The mortality rate of PCAS was relatively elevated when interval between collapse and CRP was longer than 5 minutes (χ2 = 10.792,P = 0.001), interval between collapse and administration of first resuscitation medications was longer than 5 minutes (χ2 = 13.841,P< 0.001), ROSC time> 10 minutes (χ2 = 36.451,P< 0.001), the number of dysfunction organ≥ 4 (χ2 = 28.287,P< 0.001), arterial blood lactate levels> 2 mmol/L (χ2 = 28.926, P< 0.001), and acute physiology and chronic health evaluationⅡ (APACHEⅡ) score> 15 (χ2 = 33.558,P< 0.001). Multivariate logistic regression analysis showed that the risk factors affecting the prognosis were ROSC time [odds ratio (OR) after adjustment = 36.643, 95% confidence interval (95%CI) = 2.382-563.767,P = 0.010], the number of organs with dysfunction (OR = 9.010, 95%CI = 1.140-71.199,P = 0.037), and APACHEⅡ score (OR = 10.001, 95%CI =1.336-74.893,P = 0.025).Conclusions ROSC time, the number of organs with dysfunction, and APACHEⅡ score were independent predictors of PCAS prognosis. Efforts should be given to shorten the rescue time, to shorten the time for restoring the spontaneous circulation, to prevent and treat SIRS after ROSC, and to protect the function of organs, in order to improve the prognosis of patients with PCAS.
5.Clinical analysis of a correlation between lactate clearance and prognosis in patients with multiple organ dysfunction syndrome following resuscitation
Hongxiang LI ; Dong ZHANG ; Zhongmin LIU ; Yushan WANG ; Feifei HUO
Chinese Journal of Emergency Medicine 2013;22(8):842-845
Objective To assess the relationship between lactate clearance and prognosis of patients with multiple organ dysfunction syndrome following resuscitation.Methods Data of 42 eligible patients with multiple organ dysfunction syndrome after resuscitation admitted from January 2009 to December 2011 were collected for retrospective analysis.The patients included were adult patients who survived more 24 hours after CPR for cardiac arrest with subsequent multi-organ failure.Exclusion criteria were traumatic heart arrest and the end-stage diseases.All the patients were divided into survival group and death group on the 3rd day and the 7th day after restoration of spontaneous circulation.The differences in the age,gender,mean arterial pressure,oxygenation index (PaO2/FiO2),APACHE Ⅱ score,white blood cell count (WBC),initial lactate level and 6h lactate clearance rate between the two groups were compared by using the Mann-Whitney U-tests and logistic regression analysis.Results Of 42 patients,the mean age was (59.57±14.68) years and mean APACHE Ⅱ score was (26.79 ±7.77),and 23 (54.8%) patients survived until the 3rd day and 14 (33.3%) patients survived to the 7th day after restoration of spontaneous circulation (ROSC).Univariate analysis showed that APACHE Ⅱ score in death group was significantly higher and 6 h lactate clearance was significantly lower than those in survival group (P < 0.05) on the 3rd day and the 7th day after ROSC,and other biomarkers were not significantly different between the two groups.The results from logistic regression analysis showed that there were statistically significant difference in APACHE Ⅱ score (RR =2.143,P =0.028) and 6-h lactate clearance (RR =0.887,P =0.040) between survival group and death group on the 7th day after ROSC,although no significant differences in APACHE Ⅱ score and 6 h lactate clearance were found between the two groups on the 3rd day after ROSC.Conlusions Post-cardiac arrest patients with low lactate clearance in the early stage after ROSC have a poor prognosis.Lactate clearance may be an independent predictor of mortality in post-cardiac arrest patients in the recovery phase.
6.Predictive value of AGI grading system introduced into SOFA score in patients with severe acute pancreatitis
Dong ZHANG ; Yimin YANG ; Aosong DUAN ; Yushan WANG ; Shujie ZHAO
Chinese Journal of Emergency Medicine 2015;24(10):1118-1121
Objective To study the predictive value of acute gastrointestinal injury (AGI) grading system introduced into Sequential Organ Failure Assessment (SOFA) score in patients with severe acute pancreatitis (SAP) in order to provide a reliable clinical tool for the evaluation of prognosis of SAP.Methods Patients with acute pancreatitis admitted to ICU from July 2012 to July 2014 were enrolled for study.The criteria of exclusion were the age below 18 years old,pregnancy,or patients without consent to the treatment.A total of 63 patients with 37 males and 26 females aged (47 ± 15.3) years were included.The data of their acute physiology and chronic health evaluation (APACHE) Ⅱ score,the highest SOFA score and AGI grade within the first week,and the 28-day mortality rate were collected.Patients without AGI were defined as zero point,and AGI grade Ⅰ-Ⅳ were defined as 1-4 points.The receiver operating characteristic curve (ROC) was used to evaluate the value of APACHE Ⅱ score,SOFA score,and SOFA + AGI score in predicting the prognosis of SAP.The areas under ROC curve (AUC) of the APACHE Ⅱ score,SOFA score,and SOFA + AGI score were compared with MedCalc software,and P value less than 0.01 was considered to be statistical significance.Results (1) The 28-day mortality of the 63 patients with SAP was 20.6% (13/63),in which 50 patients in the survival group,13 patients in the death group.The APACHEⅡ scores of two groups were (15.62 ± 4.33 vs.12.10 ± 3.74,P=0.0048),the SOFA scores were (14.77 ± 3.09 vs.9.24 ± 2.88,P <0.01),and the SOFA + AGI scores were (18.77 ±3.09 vs.10.74 ± 3.17,P<0.01).(2) The AUC of APACHEⅡ score was0.748 ± 0.084 (95% CI:0.622-0.849),the AUC of SOFA score was 0.902 ± 0.059 (95% CI:0.801-0.962),and the AUC of SOFA +AGI score was 0.963 ± 0.037 (95% CI,0.882-0.994);There was no significant difference in AUC between APACHE Ⅱ score and SOFA score (P =0.10),and there was statistical significance between the AUC of APACHE Ⅱ score and that of SOFA + AGI score (P =0.013),and the difference in AUC between SOFA score and SOFA + AGI score was statistically significant (P =0.008).The Youden index and the positive likelihood ratio of SOFA + AGI score system were the greatest to be 0.863 and 15.38,respectively.Conclusions SOFA scoring system has better predictive value in patients with SAP when AGI grading system was introduced into it.
7.Clinical analysis of multiple organ dysfunction syndrome after cardiopulmonary resuscitation
Nan LI ; Dong ZHANG ; Yushan WANG ; Zhongmin LIU ; Junying LU ; Ying CHEN
Chinese Journal of Emergency Medicine 2010;19(7):680-683
Objective To enhance the cognition on the clinical features of post resuscitation multiple organ dysfunction syndrome (PR-MODS) in patients after cardiac arrest, and provide the basis for integrated control. Method Based on the retrospective analysis, the clinical data of 72 patients with cardiac arrest with restoration of spontaneous circulation (ROSC) in ICU were collected, including happening place of cardiac arrest, the type of rhythm first monitored after cardiac arrest, cause of cardiac arrest, incidence of SIRS and MODS, the position and number of organ dysfunction, success rate of CPR, the rate of survival to hospital discharge and cerebral performance categories(CPC) of discharged patients. Results ①In patients with ROSC after cardiac arrest, male to female ratio was 1.18:1,55 cases was happened in hospital and 17 cases was happened out of hospital, and the ratio was 3.24:1. ②The distribution of cardiac arrest place: ICU,emergency room and operating room were the major places of in-hospital cardiac arrest, adding up to 41 cases and accounting for 74.55% (41/55); the major places of outhospital cardiac arrest were on the way to hospital and in the ambulance, and accounting for 64.71% (11/ 17). ③According to the rhythm first monitored after cardiac arrest, there were 38 cases using shock and 32 cases using non-shock, the ratio was 1.12: 1. Cardiac arrest causes of cardiogenic and on-cardiogenic factors are 37 cases and 35 cases, a ratio of 1.06:1 .④All of the 72 cases, 16 cases died within 24 h, and 56 cases were successfully resuscitated, but 51 cases occurred SIRS after ROSC, 42 cases had combined MODS (42/56,75%), 27 cases(27/42,64.29%)died.The most involving organs in sequence were brain (38 cases, 90.48%), heart (35 cases,83.33%) and lung (28 cases, 66.67%). ⑤Among the 56 successfully resuscitated patients, MODS ( - ) group (14 cases) all survived, 15 cases in MODS ( + ) group (42 cases) survived, a total rate of survived to hospital discharge was 40.28%(29/72). All the MODS ( - ) group ( 14 cases) got CPC 1 point. In MODS ( + ) group, there were 7 cases getting CPC 1-2 point, 35 cases getting CPC 3-5 point. There were no significant difference between sex and age in the two groups (P > 0.05), while the comparison of CPC and survived to hospital discharge rate had statistically significance (P < 0.001). Conclusions The occurrence of SIRS in cardiac arrest patients with ROSC was common and there was high incidence of MODS subsequently. The heart and brain were the mostly involved dysfunctional organs. PR-MODS was an important factor influencing the prognosis of patients with cardiac arrest.
8.Re-endothelialization after placement of drug-eluting stents in patients with CHD
Minghua LUO ; Huaimin GUAN ; Jinhong XIE ; Yushan CHEN ; He WANG ; Chengjie QIU ; Wenjie DONG ; Yonghua ZONG
The Journal of Practical Medicine 2016;32(5):724-727
Objective To investigate the characteristics of coronary vessel re-endothelialization after placement of drug-eluting stents (DES), and to provide clinical evidence for the double anti-platelet treatment. Methods Optical coherence tomography (OCT) was performed in 43 patients in 1 year after DES implantation. Characteristics of re-endothelialization and percentage of neointimal coverage of stent struts were evaluated by OCT. Results The rate of stent struts intimal coverage was 90.70%, and the remain was lack of endothelial coverage; The ratio of neointimal thickness (NIT) between 0-99, 100-199 and above 200 microns was 19.92%, 37.55% and 42.53%, respectively. The rate of neointimal coverage was higher and the degree of neointimal hy-perplasia was more extensive in patients with DM and in patients with ACS than those of patients without DM and of patients with stable angina pectoris. Conclusion One year after stent placement, most of the stent struts were covered with neointima and few struts obtained poor coverage of endothelial. DM and ACS may be impact factors for the progress of re-endothelialization after DES placement.
9.An application of arterial pressure-based cardiac output measurements in fluid management strategies of critically ill patients
Dong ZHANG ; Yanfei SONG ; Yimin YANG ; Aosong DUAN ; Zhibo ZHANG ; Yushan WANG
Chinese Critical Care Medicine 2014;26(9):620-623
Objective To discuss the clinical significance of fluid management of severe patients according to arterial pressure-based cardiac output (APCO) monitoring volume responsiveness index.Methods A retrospective cohort study was conducted.The severe patients were selected from the intensive care unit (ICU) of the First Hospital of Jilin University from June 1st,2012 to December 31st,2013.The hemodynamic parameters were monitored by APCO,and the fluid resuscitation was managed by stroke volume variation (SVV) and passive leg-raising test (PLR) when the acute physiology and chronic health evaluation Ⅱ (APACHE Ⅱ) score ≥ 15,heart rate > 100 bpm with the result that the preload and heart function could not be evaluated.The heart rate,SVV,lactic acid (Lac) and central venous pressure (CVP) and curative effect were recorded before and after carrying out fluid management strategy.The criteria of clinical effective was defined as heart rate decreased and (or) stroke volume (SV) increased ≥ 10%,accompanied by blood Lac and SVV decreased,other than,the cases did not meet above criteria were considered ineffective.Results Sixty-eight patients were enrolled in the study.① Before carrying out fluid management strategy:40 cases with CVP> 12 cmH2O (1 cmH2O=0.098 kPa),and 16 cases with 5-12 cmH2O,12 with <5 cmH2O.SVV>13% in 35 cases,SVV < 13% in 9 cases.PLR positive in 18 cases,and PLR negative in 6 cases.It was implicated that the patients with poor preload (SVV > 13% and PLR positive) accounted by 77.9% (53/68).② There were 49 effective cases and 19 ineffective cases 4 hours after carrying out fluid management strategy,and the effective rate was 72.06% (49/68).While there were 56 effective cases and 12 ineffective cases after 12 hours,and the total effective rate was 82.35% (56/68).③ In effective group,heart rate,SVV,Lac after fluid management strategy were significantly lower than those before fluid management strategy [4 hours after fluid management strategy:heart rate (bpm) 112.45 ± 13.53 vs.129.55 ± 15.49,SVV (15.47 ± 6.32)% vs.(21.20 ± 7.40)%,Lac (mmol/L) 4.16 ± 3.12 vs.6.21 ± 4.11 ; 12 hours after fluid management strategy:heart rate (bpm) 110.02 ± 13.92 vs.129.61 ± 14.93,SVV (14.61 ± 15.52)% vs.(20.66 ± 7.40)%,Lac (mmol/L) 3.35 ± 2.26 vs.6.11 ± 4.02,P<0.05 or P<0.01],while there was no significant difference in those markers between before and after fluid management strategy in ineffective group [4 hours after fluid management strategy:heart rate (bpm) 119.53 ± 11.68 vs.125.79 ± 11.58,SVV (16.95 ±6.48)% vs.(18.47 ±4.96)%,Lac (mmol/L) 5.55 ± 3.80 比 6.54 ± 3.72 ; 12 hours after fluid management strategy:heart rate (bpm) 115.92 ± 11.71 vs.123.40 ± 11.59,SVV (17.17 ± 6.09)% vs.(19.42 ± 8.25)%,Lac (mmol/L) 6.33 ± 3.40 vs.7.21 ± 3.81,all P> 0.05].CVP only at 12 hours after fluid management strategy in effective group was significantly higher than that before fluid management strategy (cmH2O:12.88 ± 3.38 vs.11.27 ± 4.97,P<0.05).Conclusion SVV monitored by APCO is a good indicator of volume responsiveness index,which can be used as an important reference combined with PLR for fluid management of severe patients.
10.Effects of Optimized Formulas of Radix Astragali and Radix Angelicae Sinensis Extracts on Survival Status of Idiopathic Pulmonary Fibrosis Mice and on Expression of Cytogenesis-related Factors in Lung Tissues
Qingxia GENG ; Hongzhao ZHAO ; Chenzhong ZONG ; Lina LI ; Shuyan WANG ; Yushan GAO ; Ruijuan DONG
Journal of Guangzhou University of Traditional Chinese Medicine 2017;34(3):408-412
Objective To observe the effect of the optimized formulas of extracts of Radix Astragali and Radix Angelicae Sinensis on the survival status of the idiopathic pulmonary fibrosis (IPF) mice,and on the expression levels of transforming growth factor-β (TGF-β) and vascular endothelial growth factor(VEGF),so as to optimize the therapeutic regimen and to explore the therapeutic mechanism.Methods One hundred and five SPF ICR male mice were randomly divided into normal group,model group and 5 Chinese medicine treatment groups (group 1,2,3,4,5 of the optimized formula of Radix Astragali and Radix Angelicae Sinensis extracts).The mice in the model group and the 5 treatment groups were intratracheally injected with bleomycin (5 mg/kg) to induce the pulmonary fibrosis model.On day 21,the lung tissues were taken out for the test.Hydroxyproline content was detected by alkaline hydrolysis method,and morphological changes of lung tissues were observed by hematoxylineosin (HE) staining and Mallory's staining methods.The expression levels of TGF-β and VEGF were detected by polymerase chain reaction (PCR).Results The HE staining and Mallory's staining results showed that the pulmonary fibrosis in the 5 treatment groups was relieved as compared with that in the model group,especially in the group 1,and the alveolar structure recovered better.The 21-day overall death rate in the treatment groups were lower than those in the model group,and group 1 and group 5 had the lowest rates,the difference being statistically significant (P< 0.05).Compared with the model group,the content of hydroxyproline in the lung tissues of the treatment groups were decreased to some degrees,and there was significant difference (P < 0.05 or P < 0.01).The expression levels of TGF-β and VEGF in model group were higher than those in normal group,but were deceased in the treatment groups to some degrees,except TGF-β expression in group 5,and the difference was significant(P < 0.05 or P < 0.01).Conclusion When the contents of Radix Astragali water-extract and Radix Angelicae Sinensis alcohol-extract were predominated,the extract formula exerts certain effects on decreasing hydroxyproline content in the lung tissues,inhibiting the expression levels of TGF-β and VEGF,and relieving the degree of pulmonary fibrosis in IPF mice.