Objective To investigate the impact of intraoperative red blood cell (RBC) transfusion volume on the postoperative oxygenation index in lung transplant recipients. Methods This retrospective study analyzed the clinical data of patients who underwent lung transplantation at Wuxi People's Hospital Affiliated to Nanjing Medical University from 2021 to 2023. Patients were divided into a non-severe primary graft dysfunction (PGD) group and a severe PGD group based on whether their postoperative oxygenation index was>200 mm Hg at 0, 24, and 48 h. General patient data and intraoperative RBC transfusion volumes were compared between the two groups. A binary logistic regression model was constructed to explore the effect size (OR and its 95%CI) of RBC transfusion volume on postoperative oxygenation status at different time points (0, 24, and 48 h). The area under the receiver operating characteristic curve was calculated to evaluate the model's diagnostic performance. Results A total of 351 patients were included (260 males, 91 females), with ages ranging from 20 to 77 years. The OR for the effect of intraoperative RBC transfusion on poor oxygenation was 1.486 (95%CI 0.982 to 2.248, P=0.061) at 0 h postoperatively, 3.111 (95%CI 1.793 to 5.399, P<0.001) at 24 h, and 1.583 (95%CI 1.026 to 2.442, P=0.038) at 48 h. This indicated that as time progressed, the postoperative oxygenation status of lung transplant recipients was affected by the intraoperative transfusion volume. Furthermore, an RBC transfusion volume>975 mLhad a significant impact on patient oxygenation at 24 and 48 h postoperatively. Conclusion The volume of intraoperative RBC transfusion has a significant impact on the oxygenation status at 24 and 48 h postoperatively. Intraoperative RBC transfusion volume is associated with the occurrence of severe PGD after lung transplantation. Controlling the volume of RBC transfusion during lung transplantation may help reduce the incidence of severe PGD.

Background Di(2-ethylhexyl) phthalate (DEHP) is the most prevalent environmental endocrine disruptor among phthalate acid esters (PAEs) worldwide. Previous studies have indicated that exposure to DEHP may disrupt glucose metabolism. Objective To investigate the impact of DEHP on glucose homeostasis in rats, focusing on oxidative stress-induced impairment of autophagy in islet β cells. Methods Forty male SD rats were randomly assigned to four groups, receiving DEHP doses of 0, 187, 375, and 750 mg·kg⁻¹ for 12 weeks. Oral glucose tolerance (OGTT) and insulin tolerance tests (ITT) were conducted 24 h after the final exposure. Pancreatic microstructural alterations were assessed using hematoxylin and eosin (HE) staining and transmission electron microscopy (TEM). Commercial ELISA kits were employed to quantify the levels of insulin, adenosine triphosphate (ATP), and adenosine monophosphate (AMP) in rat serum, as well as the protein expression level of activated caspase-3 in pancreatic tissue. Additionally, commercial microplate kits were utilized to measure the concentration of reduced glutathione (GSH) in serum, the activity of superoxide dismutase (SOD) using water-soluble tetrazolium salt-1, the content of malondialdehyde (MDA) by thiobarbituric acid method, and the level of reactive oxygen species (ROS) in pancreatic tissue by chemical fluorescence method. Reverse transcription polymerase chain reaction (RT-PCR) was used to measure sequestosome1 (SQSTM1/p62), Beclin1, microtubule-associated protein 1 light chain 3 (LC3), and cysteinyl aspartate specific proteinase-8 (Caspase-8) mRNA levels. Western blot analysis was applied to detect the protein relative expression levels of p62, Beclin-1, LC3-I, LC3 II, AMPK, p-AMPK, mTOR, p-mTOR, ULK1, and Caspase-8. Results Compared to the 0 mg·kg⁻¹ DEHP group, the 750 mg·kg⁻¹ DEHP group exhibited a significant increase in fasting blood glucose levels at 2, 4, 6, and 12 weeks (P<0.05). The OGTT showed that, following high-glucose gavage, the 187 mg·kg⁻¹ DEHP group had elevated blood glucose at 30 min (P<0.05), the 375 mg·kg⁻¹ DEHP group showed increased glucose levels at 15, 30, and 180 min (P<0.05), and the 750 mg·kg⁻¹ DEHP group exhibited elevated levels at 15, 30, 60, and 180 min (P<0.05). The 375 and 750 mg·kg⁻¹ DEHP groups demonstrated significantly increased OGTT area under the curve (AUC) values (P<0.05). In contrast, ITT results indicated no significant differences in blood glucose levels or AUC among the DEHP exposure groups at all time points (P>0.05). Compared to the 0 mg·kg⁻¹ DEHP group, the 750 mg·kg⁻¹ DEHP group exhibited significantly higher HOMA-IR levels and markedly lower HOMA-ISI values (P<0.05). HE and TEM showed that in each DEHP exposure group, the number of islet cells decreased, the islet area reduced, and chromatin condensation occurred. The endocrine granules in the cytoplasm of islet β cells decreased, and there were varying degrees of widening of the nuclear membrane gap, flattening and expansion of the Golgi complex, and expansion of the endoplasmic reticulum. Ribosome separation was observed, and autophagosomes were visible. In the 375 and 750 mg·kg⁻¹ DEHP groups, the mitochondria were deformed to varying degrees, and some cristae structures disappeared, presenting vacuolization. Moreover, the chromatin condensation in the nuclei was more severe in the 750 mg·kg⁻¹ DEHP group. The serum SOD activity was significantly elevated in the 750 mg·kg⁻¹ DEHP group (P<0.05). Both the 375 mg·kg⁻¹ and 750 mg·kg⁻¹ DEHP groups exhibited a significant increase in the relative ROS content in pancreatic tissue (P<0.05). In DEHP-treated groups, the MDA content increased (P<0.05), while the GSH content decreased (P<0.05). Additionally, in the 750 mg·kg⁻¹ DEHP group, the AMP/ATP ratio in serum was significantly raised (P<0.05), and the expression of cleaved Caspase-3 protein in pancreatic tissue was also significantly increased (P<0.05). The relative mRNA levels of p62, Beclin-1, LC3, and Caspase-8 in the pancreatic tissue of rats exposed to DEHP were significantly elevated (P<0.05). The relative expression levels of p-AMPK/AMPK, p-ULK1/ULK1, and Beclin-1 proteins in the DEHP-treated groups were significantly increased (P<0.05). In the 375 mg·kg⁻¹ and 750 mg·kg⁻¹ DEHP treatment groups, the relative expression levels of p62, LC3 II/LC1, and Caspase-8 proteins were significantly increased (P<0.05), while the relative expression level of p-mTOR/mTOR was significantly decreased (P<0.05). Conclusion DEHP can disrupt glucose homeostasis by inducing oxidative stress, which subsequently activates autophagy via the ROS/AMPK/ULK1 pathway, impairing autophagic flux and promoting apoptosis of islet β cells, ultimately decreasing their function and number.

Objective To explore the application effect of prone position ventilation combined with veno-venous extracorporeal membrane oxygenation (VV-ECMO) in the treatment of severe primary graft dysfunction (PGD) after lung transplantation. Methods The clinical data of 75 lung transplant recipients who developed severe PGD after lung transplantation and were treated with VV-ECMO from January 2021 to June 2024 at Wuxi People's Hospital Affiliated to Nanjing Medical University were collected. The patients with severe graft dysfunction after lung transplantation were divided into VV-ECMO group (control group, 45 cases) and prone position ventilation combined with VV-ECMO group (treatment group, 30 cases). The general data of the two groups of patients were compared, including the donors' clinical data (age, gender and oxygenation index, etc) and the recipients' clinical data [gender, age and body mass index (BMI), etc]. Cox regression analysis was used to analyze the influencing factors of the recipients' 30-day, 90-day and 180-day survival after surgery. The survival curves of the two groups of recipients were drawn using Kaplan-Meier method and compared using the log-rank test. Results The intensive care unit (ICU) stay time, ECMO application time and ventilator use time of control group were longer than those of treatment group. The proportion of male recipients and the BMI of control group were lower than those of treatment group. The 30-day, 90-day and 180-day survival of control group was worse than that of treatment group, and the differences were statistically significant (all P<0.05). The univariate Cox regression analysis of the recipients' 30-day survival after surgery showed that the recipients' BMI, history of diabetes, enlargement of the right atrium and right ventricle, intraoperative blood transfusion volume and intraoperative red blood cell transfusion volume were statistically significant (all P<0.05). The multivariate Cox regression analysis showed that the history of diabetes and enlargement of the right atrium and right ventricle were risk factors affecting the 30-day survival of lung transplant recipients (all P<0.05). The univariate Cox regression analysis of the recipients' 90-day survival after surgery showed that the recipients' BMI, history of diabetes, enlargement of the right atrium and right ventricle, intraoperative blood transfusion volume, intraoperative red blood cell transfusion volume and group variable were statistically significant (all P<0.05). The multivariate Cox regression analysis showed that the history of diabetes, enlargement of the right atrium and right ventricle and group variable were risk factors affecting the 90-day survival of lung transplant recipients (all P<0.05). The univariate Cox regression analysis of the recipients' 180-day survival after surgery showed that the recipients' BMI, history of diabetes, right atrium and right ventricle enlargement, intraoperative blood transfusion volume, intraoperative red blood cell transfusion volume and group variable were statistically significant (all P<0.05). The multivariate Cox regression analysis showed that the history of diabetes, enlargement of the right atrium and right ventricle and group variable were risk factors affecting the 180-day survival of lung transplant recipients (all P<0.05). The 30-day, 90-day and 180-day survival rates of control group were lower, and the differences between the two groups were statistically significant (all P<0.05), with a median survival time of 100 days in control group. Conclusions In the clinical treatment of severe PGD after lung transplantation, prone position ventilation combined with VV-ECMO may shorten ECMO application time, invasive ventilation time and ICU stay time, and improve the short-term prognosis of lung transplantation.

As the location with special public health environments,funeral parlors are of paramount importance in the prevention and control of infectious diseases as well as disinfection practices.This paper analyzes the unique hy-gienic characteristics of funeral parlors,summarizes relevant laws,regulations,standards,and literatures in funeral parlors at home and abroad,and elaborates the problems relevant to infection prevention and control in funeral par-lors from perspectives of body disposal risks,microbial contamination characteristics in funeral parlors,and the current status of staff's knowledge on infectious diseases.It aims to enhance the professional prevention and control capabilities of funeral service personnel and management personnel,ensure the health and safety of service recipients and staff,optimize service quality,provide theoretical basis and practical guidance for forming a sound infectious disease prevention and control system for funeral service institutions,and clarify research directions for the preven-tion and control of infectious diseases in funeral parlors in the future.

Objective To explore the influencing factors of early neurological deterioration(END)in patients with acute anterior circulation large-vessel occlusive mild stroke who were treated with medications alone within 72 h after onset.Methods Retrospective consecutive data were collected of patients with acute large-vessel occlusive mild stroke who presented to the Advanced Stroke Center of Linyi People's Hospital within 24 h of onset from January 2021 to December 2022.END was defined as an increase of ≥ 4 points in the National Institutes of Health stroke scale(N1HSS)score within 72 h after onset compared to the admission score.Patients were divided into the neurological deterioration group and the stable condition group(NIHSS score did not increase or increased by 1-3 points within 72 h after onset compared to the admission score).Baseline and clinical data of all patients were collected,including sex,age,cerebrovascular disease risk factors(hypertension,diabetes mellitus,hyperlipidemia,coronary heart disease,atrial fibrillation,smoking,alcohol consumption,stroke history),NIHSS score at admission,time from onset to admission,systolic blood pressure at admission,diastolic blood pressure at admission,laboratory test indicators at admission(blood glucose,glycosylated hemoglobin,homocysteine,total cholesterol,triglyceride,low-density lipoprotein cholesterol,high-density lipoprotein cholesterol,neutrophils,lymphocytes and neutrophil-to-lymphocyte ratio),responsible occlusion artery(internal carotid artery,middle cerebral artery,anterior cerebral artery),affected cerebral hemisphere,collateral circulation score,and medications used within 72 h after admission(intravenous thrombolysis+dual antiplatelet therapy,tirofiban+dual antiplatelet therapy,argatroban+dual antiplatelet therapy,argatroban alone,dual antiplatelet therapy alone).Variables with statistically significant differences in univariate analysis were included in multivariate Logistic regression analysis to explore the independent influencing factors for END in patients with acute anterior circulation large-vessel occlusive mild stroke treated with medications alone.Results A total of 208 patients with acute anterior circulation large-vessel occlusive mild stroke were included,with 143 males and 65 females,aged 38-85 years,with an average age of(64±9)years.Among them,86 patients were in the neurological deterioration group and 122 in the stable condition group.(1)There were statistically significant differences between the neurological deterioration group and the stable condition group in terms of history of diabetes mellitus(39.5％[34/86]vs.17.2％[21/122]),smoking history(43.0％[37/86]vs.29.5％[36/122]),left cerebral hemisphere lesion(57.0％[49/86]vs.41.0％[50/122]),collateral circulation score(4[3,5]vs.5[4,5]),time from onset to admission(7.0[3.0,17.0]hvs.4.3[2.0,11.0]h),blood glucose at admission(7.4[5.8,10.0]mmol/L vs.6.7[5.8,7.7]mmol/L),neutrophil-to-lymphocyte ratio(3.8[2.4,5.1]vs.3.0[2.1,4.3]),dual antiplatelet therapy alone(19.8％[17/86]vs.6.6％[8/122]),and argatroban+dual antiplatelet therapy(8.1％[7/86]vs.29.5％[36/122];all P＜0.05).There were no statistically significant differences in the results of the remaining univariate analyses(all P＞0.05).(2)Multivariate Logistic regression analysis showed that diabetes mellitus(OR,2.674,95％CI 1.121-6.377,P=0.027)and left cerebral hemisphere vessel occlusion(OR,2.030,95％CI I.083-3.806,P=0.027)were independent risk factors for END in acute anterior circulation large-vessel occlusive mild stroke.Argatroban+dual antiplatelet therapy(OR,0.267,95％CI 0.116-0.613,P=0.002)and high collateral circulation score(OR,0.551,95％CI 0.368-0.824,P=0.004)were independent protective factors for END in acute anterior circulation large-vessel occlusive mild stroke.Conclusions Acute anterior circulation large-vessel occlusive mild stroke patients with diabetes mellitus or left cerebral hemisphere lesions are prone to END.The combination of argatroban and dual antiplatelet therapy and good collateral circulation can reduce the risk of END.

As the location with special public health environments,funeral parlors are of paramount importance in the prevention and control of infectious diseases as well as disinfection practices.This paper analyzes the unique hy-gienic characteristics of funeral parlors,summarizes relevant laws,regulations,standards,and literatures in funeral parlors at home and abroad,and elaborates the problems relevant to infection prevention and control in funeral par-lors from perspectives of body disposal risks,microbial contamination characteristics in funeral parlors,and the current status of staff's knowledge on infectious diseases.It aims to enhance the professional prevention and control capabilities of funeral service personnel and management personnel,ensure the health and safety of service recipients and staff,optimize service quality,provide theoretical basis and practical guidance for forming a sound infectious disease prevention and control system for funeral service institutions,and clarify research directions for the preven-tion and control of infectious diseases in funeral parlors in the future.

Objective To explore the influencing factors of early neurological deterioration(END)in patients with acute anterior circulation large-vessel occlusive mild stroke who were treated with medications alone within 72 h after onset.Methods Retrospective consecutive data were collected of patients with acute large-vessel occlusive mild stroke who presented to the Advanced Stroke Center of Linyi People's Hospital within 24 h of onset from January 2021 to December 2022.END was defined as an increase of ≥ 4 points in the National Institutes of Health stroke scale(N1HSS)score within 72 h after onset compared to the admission score.Patients were divided into the neurological deterioration group and the stable condition group(NIHSS score did not increase or increased by 1-3 points within 72 h after onset compared to the admission score).Baseline and clinical data of all patients were collected,including sex,age,cerebrovascular disease risk factors(hypertension,diabetes mellitus,hyperlipidemia,coronary heart disease,atrial fibrillation,smoking,alcohol consumption,stroke history),NIHSS score at admission,time from onset to admission,systolic blood pressure at admission,diastolic blood pressure at admission,laboratory test indicators at admission(blood glucose,glycosylated hemoglobin,homocysteine,total cholesterol,triglyceride,low-density lipoprotein cholesterol,high-density lipoprotein cholesterol,neutrophils,lymphocytes and neutrophil-to-lymphocyte ratio),responsible occlusion artery(internal carotid artery,middle cerebral artery,anterior cerebral artery),affected cerebral hemisphere,collateral circulation score,and medications used within 72 h after admission(intravenous thrombolysis+dual antiplatelet therapy,tirofiban+dual antiplatelet therapy,argatroban+dual antiplatelet therapy,argatroban alone,dual antiplatelet therapy alone).Variables with statistically significant differences in univariate analysis were included in multivariate Logistic regression analysis to explore the independent influencing factors for END in patients with acute anterior circulation large-vessel occlusive mild stroke treated with medications alone.Results A total of 208 patients with acute anterior circulation large-vessel occlusive mild stroke were included,with 143 males and 65 females,aged 38-85 years,with an average age of(64±9)years.Among them,86 patients were in the neurological deterioration group and 122 in the stable condition group.(1)There were statistically significant differences between the neurological deterioration group and the stable condition group in terms of history of diabetes mellitus(39.5％[34/86]vs.17.2％[21/122]),smoking history(43.0％[37/86]vs.29.5％[36/122]),left cerebral hemisphere lesion(57.0％[49/86]vs.41.0％[50/122]),collateral circulation score(4[3,5]vs.5[4,5]),time from onset to admission(7.0[3.0,17.0]hvs.4.3[2.0,11.0]h),blood glucose at admission(7.4[5.8,10.0]mmol/L vs.6.7[5.8,7.7]mmol/L),neutrophil-to-lymphocyte ratio(3.8[2.4,5.1]vs.3.0[2.1,4.3]),dual antiplatelet therapy alone(19.8％[17/86]vs.6.6％[8/122]),and argatroban+dual antiplatelet therapy(8.1％[7/86]vs.29.5％[36/122];all P＜0.05).There were no statistically significant differences in the results of the remaining univariate analyses(all P＞0.05).(2)Multivariate Logistic regression analysis showed that diabetes mellitus(OR,2.674,95％CI 1.121-6.377,P=0.027)and left cerebral hemisphere vessel occlusion(OR,2.030,95％CI I.083-3.806,P=0.027)were independent risk factors for END in acute anterior circulation large-vessel occlusive mild stroke.Argatroban+dual antiplatelet therapy(OR,0.267,95％CI 0.116-0.613,P=0.002)and high collateral circulation score(OR,0.551,95％CI 0.368-0.824,P=0.004)were independent protective factors for END in acute anterior circulation large-vessel occlusive mild stroke.Conclusions Acute anterior circulation large-vessel occlusive mild stroke patients with diabetes mellitus or left cerebral hemisphere lesions are prone to END.The combination of argatroban and dual antiplatelet therapy and good collateral circulation can reduce the risk of END.

Objective:To evaluate the extracorporeal membrane oxygenation (ECMO) related outcomes during hospitalization during the intensive care unit (ICU) in idiopathic pulmonary fibrosis (IPF) patients with high body mass index (BMI, >25 kg/m 2) undergoing lung transplantation with ECMO support. Methods:A retrospective observational study was conducted. IPF patients who received ECMO during lung transplantation admitted to the Affiliated Wuxi People's Hospital of Nanjing Medical University from 2019 to 2020 were enrolled. Preoperative indicators including, demographics, comorbidities, arterial blood gas, and laboratory indicators; intraoperative indicators, such as lung lobe volume reduction, surgical type, surgical time, cold ischemia time, blood loss and transfusion volume; immediate indicators upon admission to the ICU, such as blood gas analysis and laboratory indicators; ECMO related outcomes, such as ECMO mode, ECMO support time, ECMO related complications (bleeding at the catheterization site, intraductal thrombosis, lower limb ischemia), and the length of ICU stay, duration of mechanical ventilation, and 30-day survival rate were collected. According to BMI, patients were divided into three groups: light weight group (BMI < 18.5 kg/m 2), normal weight group (BMI 18.5-24.9 kg/m 2), and overweight group (BMI ≥ 25.0 kg/m 2). Mainly to compare the relevant outcomes of ECMO among patients during ICU. Results:A total of 114 IPF patients who received ECMO support during lung transplantation were collected, including 23 cases in the light weight group, 63 cases in the normal weight group, and 28 cases in the overweight group. Compared with patients with underweight and normal weight, overweight patients were more likely to have hypertension (46.4% vs. 8.7%, 23.8%, P < 0.01) and coronary heart disease (32.1% vs. 4.3%, 20.6%, P < 0.05) before surgery, which was consistent with international guidelines for obesity. Other clinical data (preoperative, intraoperative, ICU characteristics) showed no statistically significant differences and were comparable. There was no statistically significant difference in terms of ECMO related outcomes, such as ECMO related complications [veno-venous (V-V) mode: 78.3%, 77.8%, 78.6%, veno-arterial (V-A) mode: 21.7%, 22.2%, 21.4%], ECMO support time (hours: 61.70±20.03, 44.57±5.76, 41.77±7.26), ECMO related complications (bleeding at the catheterization site: 4.3%, 7.9%, 14.3%; intraductal thrombosis: 8.7%, 12.7%, 17.9%; lower limb ischemia: 8.7%, 12.7%, 14.3%), and the length of ICU stay (days: 11±3, 7±1, 9±1), duration of mechanical ventilation [days: 2 (2, 11), 2 (2, 6), 3 (2, 8)] among the light weight group, normal weight group, and overweight group (all P > 0.05). Kaplan-Meier survival curve analysis showed that there was no statistically significant difference in the 30-day cumulative survival rate among the three groups (Log-Rank test: χ2 = 0.919, P = 0.632). Conclusions:High BMI does not worsen ECMO-related outcomes or adversely affect early prognosis in IPF patients undergoing lung transplantation. BMI as a single parameter should not be a contraindication for the use of ECMO in lung transplantation surgery for IPF patients.

Objective:To investigate the characteristics of attention bias to aggressive information under self-threat priming in college students with different types of high self-esteem.Methods:A total of 650 college students were selected,and high self-esteem participants were selected through the Self Esteem Scale(SES).Then,43 partic-ipants were selected from different types of high self-esteem(fragile and safe)groups through the Implicit Associa-tion Test(IAT).Each group participated in Raven's Standard Progressive Matrices(SPM)with different difficulty levels to complete self-threat priming,and then completed the spatial cue experiment.When the cue was invalid,the attention bias was obtained according to the variation of the reaction time difference(RTI)between the subjects're-sponses to aggressive words and neutral words.Results:The RTI values of the fragile high self-esteem group were higher under high self-threat priming than that of the secure high self-esteem group(P＜0.01).Under low self-threat priming,there was no significant difference in RTI values among different types of high self-esteem groups(P＞0.05).Conclusion:Fragile high self-esteem group are more likely to develop attention bias towards aggressive words under high self-threat priming than that of secure high self-esteem group.

Background Di(2-ethylhexyl) phthalate (DEHP) is the highest consumed and the most widely used phthalic acid ester, their effects on lipid metabolism have attracted the attention of many scholars. However, the associated mechanism is still unclear. Objective To observe the effect of DEHP on lipid metabolism in rats, probe its possible mechanism, and provide a research basis for the effect of DEHP on human lipid metabolism. Methods Forty healthy male SD rats were randomly divided into 4 groups: solvent control (0 mg·kg⁻¹ DEHP), low DEHP (187 mg·kg⁻¹), medium DEHP (375 mg·kg⁻¹), and high DEHP (750 mg·kg⁻¹) groups. DEHP was administered by oral gavage for 6 d per week, consecutively 8 weeks. The rats were weighed once a week during the exposure period. At 24 h after the last exposure, the rats were anesthetized with 20% urethane and sacrificed by apical puncture. Rat livers were harvested and weighed before hematoxylin-eosin (HE) histopathological observation. Reverse transcription-polymerase chain reaction (RT-PCR) was used to detect the mRNA levels of lipid metabolism-related genes Janus kinase 3 (JAK3), signal transducer and activator of transcription 5b (STAT5b), and peroxisome proliferator-activated receptor γ (PPARγ) in liver, and Western blot was used to detect the expression levels of lipid metabolism-related proteins JAK3, STAT5b, and PPARγ in liver. Results Compared with the control group, there was no significant difference in the body weight gain of the rats in each group (P>0.05). The liver organ coefficients of the DEHP exposure groups were higher than that of the control group (P<0.001), and increased with higher DEHP dosages. The level of high-density lipoprotein cholesterol (HDL-C) in serum decreased in all DEHP exposure groups (P<0.05), and the level of low-density lipoprotein cholesterol (LDL-C) in serum increased in the high DEHP group (P<0.05). The results of liver histopathological morphology showed that the hepatocytes of each DEHP group were enlarged and edematous in varying degrees, with loose stroma and irregular arrangement of cells, which were manifested as inflammatory cell infiltration and fatty degeneration of liver cells. Compared to the control group, the mRNA levels of JAK3, STAT5b, and PPARγ in liver tissues of rats in each DEHP group decreased (P<0.001). Compared to the control group, the relative expression levels of JAK3 in each DEHP group decreased (P<0.05), and the relative expression levels of STAT5b and PPARγ in the medium and high DEHP groups decreased (P<0.05). Conclusion DEHP exposure can induce abnormal lipid metabolism in rats, and the mechanism may be related to DEHP inhibiting the activation of JAK3/STAT5b/PPARγ signaling pathway.