1.Meta-analysis of traditional Chinese medicine in the treatment of skin rash caused by epidermal growth factor receptor tyrosine kinase inhibitor
Chuang CHEN ; Xiugai WANG ; Zhenchang LIU ; Yu ZHANG
Cancer Research and Clinic 2015;27(12):835-837
Objective To evaluate the efficacy and safety of traditional Chinese medicine in the treatment of skin rash caused by epidermal growth factor receptor tyrosine kinase inhibitor (EGFR-TKI).Methods The clinical randomized controlled trials of traditional Chinese medicine in the treatment of EGFR-TKI-induced skin rash which published in domestic journals were selected.The quality assessment of included literature was made by Jadad score,RevMan 5.2 software was used to make Meta-analysis.Results A total of 6 studies met the inclusion criteria,the 6 studies included 248 patients,133 cases in the treatment group,115 cases in the control group.All patients were 30 to 75 years old.Compared with the control group,the combined OR value of the clinical efficacy of traditional Chinese medicine in the treatment of EGFR-TKIinduced rash was 7.51,with 95 % confidence interval 4.46-12.65.Conclusions Meta-analysis shows that the clinical efficacy of traditional Chinese medicine in the treatment of EGFR-TKI-induced skin rash is better than Western medicine,and no adverse reactions.It can be widely used in clinical practice.
2.Effects of P and K fertilizer on content of coumarin and yield of Glehnia littoralis.
Chuang-shu SUN ; Kan ZHENG ; Wei LI ; Gui-lin CHEN ; Rong YU ; Jian-guo YU
China Journal of Chinese Materia Medica 2015;40(18):3543-3548
By a orthogonal experiment, the influence of different ratio of phosphorus and potassium fertilizers on imperatorin, isoimperatorin and psoralen contents and yield of Glehnia littoralis were studied. The results showed that root dry weight and the yield of G. littoralis increased when reasonably applied phosphorus fertilizer combined with potassium fertilizer within a certain range. And the influence of phosphorus fertilizer was greater than that of potassium fertilizer. The optimal value of root dry weight and yield achieved at both P2O5 360 kg x hm(-2), K2O 270 kg x hm(-2) and P2O5 360 kg x hm(-2), K2O 180 kg x hm(-2). The effects of different phosphorus and potassium treatments on the content of imperatorin, isoimperatorin and psoralen in G. littoralis were determined, which shows that the content increased with the moderate increase of phosphorus and potassium. And the effects of phosphorus fertilizer were more significantly. The isoimperatorin content achieved the largest value at P2O5 360 kg x hm(-2), K2O 270 kg x hm(-2), also a larger content of imperatorin and psoralen. The imperatorin content is the largest when applied P2O5 360 kg x hm(-2), K2O 180 kg x hm(-2), and the isoimperatorin content was higher as well. So that the treatment of P2O5 360 kg x hm(-2), K2O 180 kg x hm(-2) are suitable for promote to the agricultural production, which could improve the quality and yield of G. littoralis.
Agriculture
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Apiaceae
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chemistry
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growth & development
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metabolism
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Coumarins
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analysis
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metabolism
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Drugs, Chinese Herbal
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analysis
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metabolism
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Fertilizers
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analysis
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Phosphorus
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analysis
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metabolism
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Potassium
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analysis
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metabolism
3.Alda-1 alleviates brain injury after cardiopulmonary resuscitation by regulating acyl-CoA synthetase long-chain family member 4/glutathione peroxidase 4 pathway-mediated ferroptosis in swine.
Chuang CHEN ; Shuangshuang MA ; Lyuzhao LIAO ; Yu XIAO ; Haiwen DAI
Chinese Critical Care Medicine 2023;35(4):376-380
OBJECTIVE:
To investigate whether the acetaldehyde dehydrogenase 2 specific activator, Alda-1, can alleviate brain injury after cardiopulmonary resuscitation (CPR) by inhibiting cell ferroptosis mediated by acyl-CoA synthetase long-chain family member 4/glutathione peroxidase 4 (ACSL4/GPx4) pathway in swine.
METHODS:
Twenty-two conventional healthy male white swine were divided into Sham group (n = 6), CPR model group (n = 8), and Alda-1 intervention group (CPR+Alda-1 group, n = 8) using a random number table. The swine model of CPR was reproduced by 8 minutes of cardiac arrest induced by ventricular fibrillation through electrical stimulation in the right ventricle followed by 8 minutes of CPR. The Sham group only experienced general preparation. A dose of 0.88 mg/kg of Alda-1 was intravenously injected at 5 minutes after resuscitation in the CPR+Alda-1 group. The same volume of saline was infused in the Sham and CPR model groups. Blood samples were collected from the femoral vein before modeling and 1, 2, 4, 24 hours after resuscitation, and the serum levels of neuron specific enolase (NSE) and S100 β protein were determined by enzyme-linked immunosorbent assay (ELISA). At 24 hours after resuscitation, the status of neurologic function was evaluated by neurological deficit score (NDS). Thereafter, the animals were sacrificed, and brain cortex was harvested to measure iron deposition by Prussian blue staining, malondialdehyde (MDA) and glutathione (GSH) contents by colorimetry, and ACSL4 and GPx4 protein expressions by Western blotting.
RESULTS:
Compared with the Sham group, the serum levels of NSE and S100β after resuscitation were gradually increased over time, and the NDS score was significantly increased, brain cortical iron deposition and MDA content were significantly increased, GSH content and GPx4 protein expression in brain cortical were significantly decreased, and ACSL4 protein expression was significantly increased at 24 hours after resuscitation in the CPR model and CPR+Alda-1 groups, which indicated that cell ferroptosis occurred in the brain cortex, and the ACSL4/GPx4 pathway participated in this process of cell ferroptosis. Compared with the CPR model group, the serum levels of NSE and S100 β starting 2 hours after resuscitation were significantly decreased in the CPR+Alda-1 group [NSE (μg/L): 24.1±2.4 vs. 28.2±2.1, S100 β (ng/L): 2 279±169 vs. 2 620±241, both P < 0.05]; at 24 hours after resuscitation, the NDS score and brain cortical iron deposition and MDA content were significantly decreased [NDS score: 120±44 vs. 207±68, iron deposition: (2.61±0.36)% vs. (6.31±1.66)%, MDA (μmol/g): 2.93±0.30 vs. 3.68±0.29, all P < 0.05], brain cortical GSH content and GPx4 expression in brain cortical was significantly increased [GSH (mg/g): 4.59±0.63 vs. 3.51±0.56, GPx4 protein (GPx4/GAPDH): 0.54±0.14 vs. 0.21±0.08, both P < 0.05], and ACSL4 protein expression was significantly decreased (ACSL4/GAPDH: 0.46±0.08 vs. 0.85±0.13, P < 0.05), which indicated that Alda-1 might alleviate brain cortical cell ferroptosis through regulating ACSL4/GPx4 pathway.
CONCLUSIONS
Alda-1 can reduce brain injury after CPR in swine, which may be related to the inhibition of ACSL4/GPx4 pathway mediated ferroptosis.
Male
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Animals
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Swine
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Phospholipid Hydroperoxide Glutathione Peroxidase
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Ferroptosis
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Brain Injuries
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Glutathione
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Cardiopulmonary Resuscitation
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Ligases
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Iron
4.Evaluation of sampling by tracheal aspiration and nasopharyngeal swabs in the identification of bacterial etiology of acute lower respiratory tract infection in children.
Rong CHEN ; Gen-Ming ZHAO ; Yu-Zun LIN ; Chuang-Li HAO ; Yun-Fang DING
Chinese Journal of Contemporary Pediatrics 2010;12(5):393-395
Acute Disease
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Bacteria
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isolation & purification
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Child, Preschool
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Haemophilus influenzae
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isolation & purification
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Humans
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Infant
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Infant, Newborn
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Nasopharynx
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microbiology
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Respiratory Tract Infections
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diagnosis
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microbiology
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Streptococcus pneumoniae
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isolation & purification
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Trachea
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microbiology
5.Plate internal fixation versus external fixator for the treatment of unstable distal radius fractures:A Meta-analysis
Keyi CHEN ; Guangzhong YANG ; Chuang MA ; Diqing ZHAO ; Guoqi WANG ; Kai YU ; Chunxiao YUAN ; Jing LI ; Xinming YANG
Chinese Journal of Tissue Engineering Research 2013;(39):6962-6969
BACKGROUND:The surgical method for the treatment of unstable distal radius fracture mainly includes plate internal fixation and external fixator, but both of these two methods have the advantages and disadvantages. Which treatment is more conducive to the rehabilitation of patients, there is stil controversy.
OBJECTIVE:To evaluate the clinical effectiveness of internal fixation and external fixator for the treatment of unstable distal radius fractures.
METHODS:The relative databases and literatures were searched with the computer and hand to col ect the randomized control ed trials of internal fixation versus external fixator for the treatment of unstable distal radius fractures. After extraction literature data and quality evaluation, RevMan 5.2 software was used for system evaluation. The grip strength, disabilities of arm, shoulder&hand score, complications rates, infection rates, deformity rates and ulnar variance rates were compared between two groups.
RESULTS AND CONCLUSION:A total of 9 literatures, involving total y 524 patients were included, 286 patients in the internal fixation group and 238 patients in the external fixator group. There was no significant difference in grip strength between internal fixation group and the external fixator group. The results of Meta-analysis showed that the internal fixation group was better than the external fixator group in the aspects of disabilities of arm, shoulder&hand score, complications rate, infection rate, deformity rate and ulnar variance rate at 3 months and 1 year after treatment. The results indicate that the plate internal fixation is better than external fixator in the treatment of unstable distal radius fractures, but the large sample, double-blind, and high quality randomized control ed trials are stil needed to identify the results.
6.Correlation between blood biochemical indexes and milk composition in early lactation cows in dairy cow
Runqi LIU ; Wei YANG ; Cheng XIA ; Hongyou ZHANG ; Yuanyuan CHEN ; Hongjiang YU ; Taiyu SHEN ; Sansi GAO ; Baoyin HUANG ; Chuang XU
Chinese Journal of Veterinary Science 2017;37(8):1566-1570
Biochemical indexes and blood composition in early lactation health,ketosis and hypocalcemia dairy cows were analyzed to make sure the milk composition characteristics with related diseases,the correlation analysis between early lactating dairy milk composition and blood biochemical were also make in order to provide support for the cattle health assessment.According to theblood index,72 Holstein cows 7-21 d postpartum,were divided into group subclinical hypocalcemia,ketosis test group and control group,24 heads each group.The blood and milk of cows were collected and used to analyze the correlation between blood biochemical indexes and milk composition.The results showed that ketosis and hypocalcemia induced the level of milk protein and non fat milk solids decreased,while the content of citric acid in milk increased.The correlation equation between citric acid in milk and serum NEFA,BHBA and GLU was y=3.192x-0.802,(R2 =0.363),y=4.594x-0.793,(R2 =0.320),y=1.228x+0.775,(R2 =0.261),in which x was the content of citric acid in milk.The results showed that the content of citric acid in milk had positively related to blood NEFA,which could be used as an early marker for the diagnosis of negative energy balance.The levels of BUN and ALB in blood can be used to evaluate the levels of milk protein and urea.
7.Effects of electroacupuncture with different frequencies on hippocampal neuronal apoptosis and JNK signaling pathway in rats with vascular dementia
Shiyu CHEN ; Chuang ZHANG ; Fei GAO ; Xiaoqi ZHANG ; Wentao YU ; Zehui WU ; Fei GUO ; Qianbo DONG ; Huizhen ZHANG
Journal of Acupuncture and Tuina Science 2022;20(1):12-21
Objective: To observe the effects of electroacupuncture (EA) with three frequencies (100 Hz, 2 Hz, and 2 Hz/100 Hz) on the apoptosis of neurons and c-Jun N-terminal kinase (JNK) signaling pathway in the hippocampus of rats with vascular dementia (VD), and explore the mechanism of EA intervention for VD. Methods: Fifty male Sprague-Dawley rats were randomly divided into a model group, a sham operation group, a 100 Hz EA group, a 2 Hz EA group, and a 2 Hz/100 Hz EA group, with ten rats in each group. The VD model rats were established by repeated ischemia-reperfusion of bilateral common carotid arteries. The rats in the EA groups received EA intervention at Baihui (GV20), Dazhui (GV14), Geshu (BL17) and Zusanli (ST36), once a day for 14 d. Afterward, Morris water maze was used to examine the learning and memory performances of the rats in each group, hematoxylin-eosin staining to observe the histomorphological changes in the hippocampal CA1 region, terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling to test the apoptosis of neurons in the hippocampal CA1 region, and Western blot to detect the protein expression levels of JNK, phosphorylated JNK (p-JNK), Caspase-8, and Caspase-3 in the hippocampus tissue. Results: Compared with the sham operation group, the escape latency of the model group in water maze test was prolonged; the number of crossing the original platform was decreased (P<0.01); the hippocampal neurons were severely damaged and the number of surviving neurons was decreased (P<0.01), whereas the number of apoptotic neurons was increased (P<0.01); the protein expression levels of JNK, p-JNK, Caspase-8, and Caspase-3 in the hippocampus were significantly increased (P<0.01). Compared with the model group, the escape latency of each EA group was significantly shortened; the number of crossing the original platform was significantly increased (P<0.01); the damage of hippocampal neurons was alleviated, the number of surviving neurons was increased (P<0.01), and the number of apoptotic neurons was decreased (P<0.01); the protein expression levels of JNK, p-JNK, Caspase-8, and Caspase-3 in the hippocampus were decreased (P<0.01). The results in the 2 Hz EA group and the 2 Hz/100 Hz EA group were superior to those in the 100 Hz EA group. Conclusion: EA with the three frequencies (100 Hz, 2 Hz, and 2 Hz/100 Hz) can improve the learning and memory performances in VD rats subjected to ischemia-reperfusion, its mechanism may be related to the inhibition of neuronal apoptosis and the regulation of the related protein expression of JNK signaling pathway, and the intervention effects of EA with 2 Hz and 2 Hz/100 Hz are more significant.
8.Effect of Alda-1 on ferroptosis in cardiomyocytes after cardiac arrest and cardiopulmonary resuscitation in swine
Chuang CHEN ; Shuangshuang MA ; Lyuzhao LIAO ; Yu XIAO ; Haiwen DAI
Chinese Journal of Anesthesiology 2022;42(3):354-357
Objective:To evaluate the effect of Alda-1 on ferroptosis in cardiomyocytes after cardiac arrest and cardiopulmonary resuscitation in swine.Methods:Twenty-two healthy male white swine, weighing 35-43 kg, were divided into 3 groups using a random number table method: sham operation group (group S, n=6), cardiac arrest-cardiopulmonary resuscitation group (group CA-CPR, n=8) and Alda-1 group ( n=8). The animals only underwent the general preparation in group S, and the swine model of cardiac arrest and cardiopulmonary resuscitation was developed by 8 min of electrically induced cardiac arrest through the pacing catheter in the right ventricle followed by 8 min of cardiopulmonary resuscitation in CA-CPR and Alda-1 groups.Alda-1 0.88 mg/kg was intravenously injected at 5 min after resuscitation in group Alda-1, and the equal volume of vehicle was administered instead in the other two groups.Stroke volume (SV) and global ejection fraction (GEF) were measured using PiCCO before developing the model and at 1, 2 and 4 h after resuscitation (T 0-3). Venous blood samples were collected from the femoral vein to measure the concentrations of serum cardiac troponin (cTnI) by enzyme-linked immunosorbent assay at T 0-3, and at 24 h after resuscitation (T 4). The animals were then sacrificed, and myocardial tissues in the left ventricle were harvested to measure the expression of acyl-CoA synthetase long-chain family member 4 (ACSL4) and glutathione peroxidase 4 (GPX4) (by Western blot), iron deposition (by Prussian blue staining), 4-hydroxy-2-nonenal (4-HNE) content (by enzyme-linked immunosorbent assay), and malondialdehyde (MDA) and glutathione (GSH) contents (by colorimetry). Results:Compared with group S, SV and GEF were significantly decreased at T 1-3, the serum concentrations of cTnI were increased at T 1-4, myocardial ACSL4 expression was up-regulated, GPX4 expression was down-regulated, iron deposition and contents of 4-HNE and MDA were increased, and the content of GSH was decreased in CA-CPR and Alda-1 groups ( P<0.05). Compared with group CA-CPR, SV and GEF were significantly increased at T 2-3, the serum concentrations of cTnI were decreased at T 3-4, myocardial ACSL4 expression was down-regulated, GPX4 expression was up-regulated, iron deposition and contents of 4-HNE and MDA were decreased, and the content of GSH was increased in group Alda-1 ( P<0.05). Conclusions:Alda-1 can alleviate myocardial injury after cardiac arrest and cardiopulmonary resuscitation in swine and further improve cardiac dysfunction, and the mechanism may be related to inhibition of cell ferroptosis.
9.Analysis of the concentrations of calcium, phosphorus and magnesium in beef cattle which in seven different areas of Heilongjiang province
Baoyin HUANG ; Ping HE ; Hongjiang YU ; Taiyu SHEN ; Sansi GAO ; Runqi LIU ; Zhihao DONG ; Ruirui LI ; Yuanyuan CHEN ; Wei YANG ; Chuang XU
Chinese Journal of Veterinary Science 2017;37(8):1562-1565
The objective of this study was to determine the concentrations of calcium,phosphorus and magnesium in blood and compare the differences in seven areas of Heilongjiang province,and then estimate calcuim-phosphorus metabolism of beef cattle in seven beef cattle farms to provi detheoretical foundation for the prevention of calcium phosphorus metabolism diseases of beef cattle.Seven beef cattle farms of Daqing,Shuangyashan,Jiusan and Mudanjiang in Heilongjiang province were selected as the survey sites,which were recorded as group A (both grazing and stall-feeding in Shuangyashan),group B (stall-feeding mode in Shuangyashan),group C (stall-feeding mode in Daqing),group D (grazing mode in Jiusan),group E (both grazing and stall-feeding in Daqing),group F (both grazing and stall-feeding in Daqing) and group G (stall-feeding mode in Mudanjiang).Then the concentrations of Ca,Mg,P,free fatty acid (NEFA),glucose (Glc) and β-hydroxybutyric acid (BHBA) in the blood were compared to estimate the calcuim-phosphorus metabolic states.Results showed that the concentrations of calcium,magnesium and phosphorus in the plasma of 65 beef cattle in seven survey sites were within the normal range,and there was no significant difference in calcium concentration among seven sites.The P contents in group C and G were significantly higher those that in group A and B(P<0.01),which in group C was significantly higher than those in group D,E and F (P<0.01),which in group G was significantly higher than those in group D,E and F(P<0.01).NEFA content in group B was significantly higher than that in group D (P<0.05),and there was no difference among other groups.The concentration of Glc in group A was significantly higher than that in group E (P<0.05),which in group B was significantly higher than those in group A and D,and was very significantly higher than those in group E,F and G (P<0.01),which in group C was very significantly higher than those in group A,D,E,F and G (P<0.01),which in group C was significantly higher than those in group A,D,E,F and G (P<0.01),which in group D was significantly higher than that in group E (P<0.05),and which in group F was significantly higher than that in group E (P<0.05).The concentration of BHBA in group C,D and E were significantly higher than that in group A (P<0.01),which in group C was significantly higher than that in group B (P<0.05),which in group D and E was significantly higher than that in group B (P<0.01),which in group C was significantly higher than that in group G (P<0.01),which in group D was significantly higher than those in group F and G (P<0.01),and in group E was highly significantly higher than that in group F and G (P<0.01).Overall,there were not calcuim-phosphorus metabolic disorders within the seven beef cattle farms which were selected,but it is also necessary to strengthen feeding management and health care to prevent the occurrence of nutrition and metabolic diseases.
10.Comparison of X-ray film and MRI in the diagnosis of posterior ankle impingement syndrome
Wei ZHANG ; Fengchen LI ; Wen CHEN ; Daiyou YU ; Fuqing GUO ; Chuang LIU
Journal of Practical Radiology 2017;33(10):1572-1576
Objective To compare the diagnostic value of X-ray film and MRI in the posterior ankle impingement syndrome (PAIS).Methods X-ray film and MRI data of 72 cases with posterior ankle pain were analyzed retrospectively.Passive plantar flexion test and diagnostic blocking were used as the diagnostic criteria.72 patients with posterior ankle pain were divided into PAIS group and non PAIS group.X-ray film and MRI findings in the PAIS group and non PAIS group were compared,and features which had differential diagnostic value were selected for calculating and comparing the efficacy of X-ray film and MRI in diagnosing or excluding PAIS.Results There was no significant difference for X-ray film findings such as os trigonum osteosclerosis(χ2 =2.947,P =0.086),os trigonum cystic changes(χ2 = 3.031,P =0.082)and posterior ankle soft tissue swelling(χ2 = 1.610,P =0.205 )between the PAIS group and the non PAIS group.There was significant difference for MRI features such as os trigonum or posterior talus bone marrow edema(χ2 =38.868,P =0.000 ),edema around os trigonum(χ2 =39.919,P =0.000 )and tenosynovitis of the flexor hallucis longus (χ2 =8.854,P =0.003)between the PAIS group and the non PAIS group.There was no significant difference for MRI features such as posterior ankle synovitis(χ2 =2.534,P =0.119)and posterior ankle ligament thickening(χ2 =1.515,P =0.218)between the PAIS group and the non PAIS group.Conclusion Using passive plantar flexion test and diagnostic blocking as the gold standard,the diagnostic efficacy of MRI on PAIS is obviously higher than that of X-ray film.MRI can significantly improve the diagnostic accuracy of PAIS,and avoid unnecessary diagnostic blocking.