Non-alcoholic fatty liver disease （NAFLD） is a chronic liver disease closely related to metabolism， which is mainly characterized by abnormal lipid deposition in hepatocytes. In recent years， with the increasing prevalence of obesity and metabolic syndrome， NAFLD has become one of the most common chronic diseases in the world. The pathogenesis of NAFLD is complex and varied， involving the cross-regulation of multiple signaling pathways such as glucose-lipid metabolism， oxidative stress， and inflammation. The TLR4 signaling pathway plays a key role in the development and progression of NAFLD， and abnormal activation of this pathway accelerates the deterioration of NAFLD by promoting the release of pro-inflammatory cytokines， inducing oxidative stress， and exacerbating insulin resistance. Studies have shown that traditional Chinese medicine （TCM） can regulate the TLR4 signaling pathway to alleviate the symptoms and pathological features of NAFLD. The present review summarizes the experimental research progress in the TCM regulation of the TLR4 signaling pathway in treating NAFLD in the past 5 years， covering a wide range of TCM active ingredients （such as polysaccharides， terpenoids， alkaloids， flavonoids） and compound prescriptions. The active ingredients and compound prescriptions of TCM can effectively ameliorate lipid metabolism disorders， reduce insulin resistance， regulate intestinal flora， and inhibit inflammation and oxidative stress by regulating the TLR4 signaling pathway via multiple targets and pathways， thus slowing down the progression of NAFLD. Through in-depth analysis of the pathological mechanisms of NAFLD and exploration of the potential of TLR4 signaling pathway as a therapeutic target， we can provide theoretical support for the application of TCM in the treatment of NAFLD， as well as new perspectives and directions for future clinical research and new drug development， thereby promoting the innovation and development of therapeutic strategies for NAFLD.

ObjectiveTo unveil the mechanism of Jianpi Huogu prescription （JPHGP） in ameliorating the dyslipidemia of steroid-induced osteonecrosis of the femur head （SONFH） by oxylipidomics combined with transcriptomics. MethodsSixty SD rats were assigned into normal， model， low-， medium-， and high-dose （2.5， 5， 10 g·kg^-1， respectively） JPHGP， and Jiangushengwan （1.53 g·kg^-1） groups. Lipopolysaccharide was injected into the tail vein at a dose of 20 μg·kg^-1 on days 1 and 2， and methylprednisolone sodium succinate was injected at a dose of 40 mg·kg^-1 into the buttock muscle on days 3 to 5. The normal group received an equal volume of normal saline. Drug administration by gavage began 4 weeks after the last injection， and samples were taken after administration for 8 weeks. Hematoxylin-eosin staining was conducted to reveal the histopathological changes of the femoral head， and the number of adipocytes， the rate of empty bone lacunae， and the trabecular area were calculated. Micro-computed tomography was used for revealing the histological and histomorphometrical changes of the femoral head. Enzyme-linked immunosorbent assay was employed to measure the serum levels of triglyceride （TG）， total cholesterol （TC）， low-density lipoprotein （LDL）， high-density lipoprotein （HDL）， apolipoprotein A1 （ApoA1）， and apolipoprotein B （ApoB）. At the same time， the femoral head was collected for oxylipidomic and transcriptomic detection. The differential metabolites and differential genes were enriched and analyzed， and the target genes regulating lipid metabolism were predicted. The predicted target proteins were further verified by molecular docking， immunohistochemistry， and Western blot. ResultsCompared with the normal group， the model group showcased thinning of the femoral head， trabecular fracture， karyopyknosis， subchondral cystic degeneration， increases in the number of adipocytes and the rate of empty bone lacunae （P<0.01）， a reduction in the trabecular area （P<0.01）， decreases in BMD， Tb.Th， Tb.N， and BV/TV， and increases in Tb.Sp and BS/BV （P<0.01）. Compared with the model group， the JPHGP groups showed no obvious thinning of the femoral head or subchondroidal cystic degeneration. The high- and medium-dose JPHGP groups presented declines in the number of adipocytes and the rate of empty bone lacunae， an increase in the trabecular area （P<0.05， P<0.01）， rises in BMD， Tb.Th， Tb.N， and BV/TV， and decreases in Tb.Sp and BS/BV （P<0.05， P<0.01）. Compared with the normal group， the model group showcased raised serum levels of TG， TC， LDL， and ApoB and lowered serum levels of HDL and ApoA1 （P<0.01）. Compared with the model group， the JPHGP groups had lowered serum levels of TG， TC， LDL， and ApoB （P<0.05， P<0.01） and a risen serum level of ApoA1 （P<0.05， P<0.01）. Moreover， the serum level of HDL in the high-dose JPHGP group increased （P<0.01）. A total of 19 different metabolites of disease set and drug set were screened out by oxylipidomics of the femoral head， and 119 core genes with restored expression were detected by transcriptomics. The enriched pathways were mainly concentrated in inflammation， lipids， apoptosis， and osteoclast differentiation. Molecular docking， immunohistochemistry， and Western blot results showed that compared with the normal group， the model group displayed increased content of 5-lipoxygenase （5-LO） and peroxisome proliferator-activated receptor γ （PPARγ） in the femoral head （P<0.01）. Compared with the model group， medium- and high-dose JPHGP reduced the content of 5-LO and PPARγ （P<0.05， P<0.01）. ConclusionJPHGP can restore the levels of oxidized lipid metabolites by regulating the 5-LO-PPARγ axis to treat SONFH in rats. Relevant studies provide experimental evidence for the efficacy mechanism of JPHGP in the treatment of SONFH.

ObjectiveTo unveil the mechanism of Jianpi Huogu prescription （JPHGP） in ameliorating the dyslipidemia of steroid-induced osteonecrosis of the femur head （SONFH） by oxylipidomics combined with transcriptomics. MethodsSixty SD rats were assigned into normal， model， low-， medium-， and high-dose （2.5， 5， 10 g·kg^-1， respectively） JPHGP， and Jiangushengwan （1.53 g·kg^-1） groups. Lipopolysaccharide was injected into the tail vein at a dose of 20 μg·kg^-1 on days 1 and 2， and methylprednisolone sodium succinate was injected at a dose of 40 mg·kg^-1 into the buttock muscle on days 3 to 5. The normal group received an equal volume of normal saline. Drug administration by gavage began 4 weeks after the last injection， and samples were taken after administration for 8 weeks. Hematoxylin-eosin staining was conducted to reveal the histopathological changes of the femoral head， and the number of adipocytes， the rate of empty bone lacunae， and the trabecular area were calculated. Micro-computed tomography was used for revealing the histological and histomorphometrical changes of the femoral head. Enzyme-linked immunosorbent assay was employed to measure the serum levels of triglyceride （TG）， total cholesterol （TC）， low-density lipoprotein （LDL）， high-density lipoprotein （HDL）， apolipoprotein A1 （ApoA1）， and apolipoprotein B （ApoB）. At the same time， the femoral head was collected for oxylipidomic and transcriptomic detection. The differential metabolites and differential genes were enriched and analyzed， and the target genes regulating lipid metabolism were predicted. The predicted target proteins were further verified by molecular docking， immunohistochemistry， and Western blot. ResultsCompared with the normal group， the model group showcased thinning of the femoral head， trabecular fracture， karyopyknosis， subchondral cystic degeneration， increases in the number of adipocytes and the rate of empty bone lacunae （P<0.01）， a reduction in the trabecular area （P<0.01）， decreases in BMD， Tb.Th， Tb.N， and BV/TV， and increases in Tb.Sp and BS/BV （P<0.01）. Compared with the model group， the JPHGP groups showed no obvious thinning of the femoral head or subchondroidal cystic degeneration. The high- and medium-dose JPHGP groups presented declines in the number of adipocytes and the rate of empty bone lacunae， an increase in the trabecular area （P<0.05， P<0.01）， rises in BMD， Tb.Th， Tb.N， and BV/TV， and decreases in Tb.Sp and BS/BV （P<0.05， P<0.01）. Compared with the normal group， the model group showcased raised serum levels of TG， TC， LDL， and ApoB and lowered serum levels of HDL and ApoA1 （P<0.01）. Compared with the model group， the JPHGP groups had lowered serum levels of TG， TC， LDL， and ApoB （P<0.05， P<0.01） and a risen serum level of ApoA1 （P<0.05， P<0.01）. Moreover， the serum level of HDL in the high-dose JPHGP group increased （P<0.01）. A total of 19 different metabolites of disease set and drug set were screened out by oxylipidomics of the femoral head， and 119 core genes with restored expression were detected by transcriptomics. The enriched pathways were mainly concentrated in inflammation， lipids， apoptosis， and osteoclast differentiation. Molecular docking， immunohistochemistry， and Western blot results showed that compared with the normal group， the model group displayed increased content of 5-lipoxygenase （5-LO） and peroxisome proliferator-activated receptor γ （PPARγ） in the femoral head （P<0.01）. Compared with the model group， medium- and high-dose JPHGP reduced the content of 5-LO and PPARγ （P<0.05， P<0.01）. ConclusionJPHGP can restore the levels of oxidized lipid metabolites by regulating the 5-LO-PPARγ axis to treat SONFH in rats. Relevant studies provide experimental evidence for the efficacy mechanism of JPHGP in the treatment of SONFH.

OBJECTIVE To analyze the current situation of drug use in domestic aeromedical rescue， and provide references for the development of aeromedical rescue services and the rational use of drugs on board. METHODS All literature on aeromedical rescue in China were retrieved from the databases of SinoMed， CNKI， VIP， and Wanfang data up to September 1st， 2024. Extracting descriptive analysis were conducted on the literature screened by the inclusion and exclusion criteria. RESULTS A total of 36 literature were included. Aeromedical rescue cases had been reported in China since 1985， with a cumulative total of 5 370 cases reported. Prehospital rescue performed 861 cases， with 96.40% of them involving the use of at least 9 categories， totaling at least 10 different drugs， primarily emergency drugs. Interhospital rescue performed 4 509 cases， and 85.23% of them used over 48 kinds of drugs across 19 categories， mainly emergency drugs supplemented by specialty drugs. From the view of transportation， 5 166 air transfers were made by helicopters， of which 88.00% involved the use of drugs， and 204 cases by fixed-wing aircraft， of which 91.18% involved the use of drugs. CONCLUSIONS Drugs are frequently used in aeromedical rescue involving a wide variety of types in China. It is imperative to strengthen the focus on the equipment and rational use of drugs in aeromedical rescue， thereby facilitating the establishment of a standardized theoretical framework.

OBJECTIVE To explore the practicality of the pharmaceutical pathway for prophylactic use of antibiotics during the perioperative period of class Ⅰ neurosurgery incisions. METHODS The previously established pharmaceutical pathway for the prophylactic use of antibiotics in the perioperative period of class Ⅰ neurosurgery incisions was used to retrospectively evaluate the prophylactic use of antibiotics in 127 cases. The “antibiotics prophylactic use scoring system” in the pharmaceutical pathway was used to conduct preoperative scoring， and the patient’s actual antibiotics use was compared and analyzed in combination with existing Guiding Principles for Clinical Application of Antibiotics （2015 Edition） （hereinafter referred to as the Guiding Principles）. The pharmaceutical pathway also innovatively proposes key points for improvement in terms of the frequency of adding antibiotics during surgery and the duration of prophylactic use of antibiotics after surgery. By comparing with the actual medication situation of patients， the direction for updating the Guiding Principles was explored. RESULTS According to the retrospective analysis results， for neurosurgery class Ⅰ incision surgery， in addition to the preoperative prophylactic use of antibacterial drugs for skull mass resection and carotid endarterectomy recommended in the guidelines， endoscopic trigeminal microvascular decompression， arthroscopy and other specific joint examinations， spinal nerve Radical decompression， endoscopic lumbar nucleectomy， dural repair， and spinal canal decompression can also be further explored about the situation of not using antibacterial prophylaxis before surgery； at the same time， for the patients undergoing class Ⅰ neurosurgery incisions， the use of antibiotics during and after surgery may be considered for a second addition of antibiotics， taking into account the surgical time. If cerebrospinal fluid leakage occurred after surgery， it is recommended to extend the duration of prophylactic use of antibiotics appropriately. CONCLUSIONS The application of pharmaceutical pathways can provide more targeted analysis of key points in the prevention of antibiotic use， which promotes the transformation of perioperative antibiotics management for class Ⅰ incisions from “qualitative， empirical” management to “quantitative， scientific” management.

ObjectiveTo clarify the pharmacodynamic characteristics and neuroinflammatory mechanisms of Ruyi Zhenbaowan （RYZBW） in treating nociceptive hypersensitivity and central sensitisation of spinal cord in the mouse model of central post-stroke pain （CPSP）. MethodSPF-grade male ICR mice of 8 weeks old were assigned into the sham operation （Sham）， model （CPSP）， low-， medium-， and high-dose （0.303， 0.607 1.214 g·kg^-1） RYZBW （RYZBW-L， RYZBW-M， and RYZBW-H， respectively）， and pregabalin （PGB， 0.046 g·kg^-1， positive control） groups. The rat model of CPSP was established by injection of type Ⅳ collagenase into the ventral posterior lateral nucleus of the thalamus on day 1. Rats were administrated with corresponding drugs or normal saline （Sham and CPSP groups） by gavage from day 14 to day 17. The mechanical pain sensitivity test was performed on days 0， 3， 4， 7， 10， 14， 17. On day 18， the L₅ segment of spinal cord was collected for the detection of inflammatory cytokines by immunoinflammatory microarray， CXC chemokine ligand 16 （CXCL16） by enzyme-linked immunosorbent assay， and calcitonin gene-related peptide （cGRP） by immunohistochemistry. In addition， fluorescence dual-labeling was employed to determine the expression levels of CXCL16， the dendritic cell marker CD11c， the macrophage marker CD68， the microglia marker TMEM119， the endothelial cell markers CD31 and CXCR6， and the T cell marker CD3. ResultCompared with the Sham group， the mechanical pain threshold of the CPSP group was significantly lower than that of the Sham group from day 3 to day 17， with stable hyperalgesia symptoms. On the 7^th day， the mechanical pain threshold of the PGB group was significantly higher than that of the CPSP group， with significant analgesic effect （P<0.01）. On days 10-17, the mechanical pain threshold of the RYZBW-H group was significantly higher than that of the CPSP group， showing a stable analgesic effect （P<0.05）. On the 17^th day， the analgesic effect of RYZBW was dose-effect correlated （R²=0.303 7）. From day 4 to day 17， the mechanical pain threshold of RYZBW-H group was positively correlated with time （R²=0.111 5）. The above results suggested that the analgesia of RYZBW was time-dependent. On the 17 th day， the expression of central sensitization marker cGRP in the spinal dorsal horn of CPSP mice was significantly increased compared with the Sham group （P<0.05）， and RYZBW down-regulated it in a dose-dependent manner （R²=0.500 8）， suggesting that RYZBW significantly inhibited the central sensitization of the spinal cord caused by CPSP. The results of spinal cord inflammation chip on the 17^th day showed that compared with CPSP group， RYZBW-H group inhibited CXCL16 expression （P<0.01）.The results of ELISA based on independent repeated samples showed that RYZBW inhibited the expression of CXCL16 protein in spinal cord in a dose-dependent manner （R²=0.250 4）. The results of immunofluorescence double labeling showed that compared with Sham group, the expression of CXCL16 in CD11c positive dendritic cells in CPSP group increased， and the number of CD68 positive cells increased （P<0.05）. Compared with CPSP group， RYZBW down-regulated it: the expression of CXCL16 in CD31 positive endothelial cells， CD68 positive macrophages and TMEM119 positive microglia increased， and the number and cell body area of TMEM119 positive microglia increased significantly （P<0.05）. The number of CD3 positive T cells （P<0.05） and the expression of CXCR6 in CD3 positive T cells were increased. RYZBW inhibited the activation of endothelial cells and macrophages in a dose-dependent manner， and reduced the infiltration of microglia and T cells （R²=0.691 4， R²=0.551 5， R²=0.653 2， R²=0.180 6， R²=0.287 5， R²=0.298 6，R²=0.511 6）. ConclusionRYZBW can effectively alleviate nociceptive hypersensitivity and central sensitisation of the spinal cord in CPSP mice by regulating CXCL16-CXCR-6， inhibiting the infiltration and activation of microglia and macrophages， and the activation of dendritic cells， endothelial cells， and T cells.

ObjectiveTo evaluate the intervention effect of Ruyi Zhenbaowan （RYZBW） on secondary brain injury and central pain in mice with hemorrhagic stroke and to explore its pharmacological mechanism of repairing the neurovascular unit from the perspective of neuroinflammation. MethodA mouse model of central post-stroke pain （CPSP） was established by microinjecting type Ⅳ collagenase into the ventroposterior thalamic nucleus. The day of model establishment was recorded as D1， and the mice were divided into Sham operation group （Sham）， model group （CPSP）， low （RYZBW-L）， medium （RYZBW-M）， and high （RYZBW-H） dose groups of RYZBW， and positive drug pregabalin （PGB） group. On the 4th day （D4） after model establishment， gavage administration was performed twice daily. The Sham and CPSP groups received an equal volume of normal saline， while the RYZBW-L， RYZBW-M， and RYZBW-H groups received RYZBW at 1.214， 1.821， 2.428 g·kg^-1， respectively， and the PGB group received PGB at 0.046 g·kg^-1. Mechanical hyperalgesia was assessed before model establishment （D0）， on the 3rd day （D3）， and after the first gavage on D4. Nerve damage was evaluated after the second gavage on D1 and D4. On D4， peripheral blood was collected for routine blood tests， and the thalamus was collected for immune-inflammation microarray analysis. In independent samples， quantitative analysis was performed on the localization of immune-inflammatory factors， receptors， and cells via immunofluorescence staining， enzyme-linked immunosorbent assay （ELISA）， and Western blot analysis. ResultCompared with the Sham group， CPSP mice showed significant secondary nerve injury， central pain after stroke （P<0.05，P<0.01）， increased red blood cell distribution width （RDW） in peripheral blood （P<0.05）， and decreased hemoglobin （HGB） concentration （P<0.05）. Immune-inflammation microarray analysis showed that CC chemokine ligand 2 （CCL2） in the CPSP thalamus was significantly increased compared to the Sham group （P<0.01）， while CX3C chemokine ligand 1 （CX3CL1） was significantly decreased （P<0.05）. These results were confirmed by ELISA and immunofluorescence staining. Western blot analysis indicated that the protein expression of CX3CR1， the receptor for CX3CL1， was significantly decreased in the CPSP group compared to the Sham group （P<0.01）. Immunofluorescence staining revealed that the number of Ly6C⁺CX3CR1⁺ non-classical monocytes in the CPSP group did not change significantly， while the number of classical monocytes （CX3CR1^-Ly6C⁺） significantly increased （P<0.01）. The expression of CX3CR1 in microglia was significantly increased in the CPSP group （P<0.01）. Compared with the CPSP group， RYZBW improved neurological deficits （R²=0.367 9） and central pain symptoms （R²=0.501 9） in a dose-dependent manner. RYZBW-H significantly improved peripheral blood RDW and HGB （P<0.05）. Immune-inflammation microarray analysis and ELISA results showed that RYZBW-H significantly inhibited CCL2 expression （P<0.01） and increased CX3CL1 expression （P<0.05）. Western blot results indicated that the protein expression of CX3CR1 in the RYZBW-L and RYZBW-H groups was significantly increased （P<0.05）. Immunofluorescence staining demonstrated that RYZBW increased the overall expression of CX3CR1 in a dose-dependent manner （R²=0.619 6）， inhibited the expression of CX3CR1 on microglia， and decreased both the number （R²=0.494 5） and soma area （R²=0.571 7） of microglia compared with the CPSP group. Additionally， RYZBW increased the infiltration of CX3CR1⁺Ly6C⁺ non-classical monocytes in a dose-dependent manner （R²=0.635 3） and effectively inhibited the infiltration of Ly6C⁺CX3CR1^- classical monocytes （R²=0.483 6）. ConclusionRYZBW can effectively alleviate secondary injury and central pain in CPSP mice， and its mechanism involves regulating the CX3CL1-CX3CR1 ligand-receptor interaction， inhibiting microglial infiltration and activation， promoting non-classical monocyte infiltration for vascular repair， and suppressing the infiltration of classical monocytes for inflammatory phagocytosis.

Objective To explore the effect of cannabinoid receptor 2(CB2)on orthodontic tooth movement(OTM)rate and periodontal tissue reconstruction of pressure area in mice.Methods Thirty CB2-/-male mice and thirty littermate control WT male mice were individually accepted the orthodontic appliance at their age of 6 weeks.The mice were respectively scarified at 3 days,7 days,14 days and 21 days after the operation.Then the tooth movement distance was examined through the stereomicroscope.Hematoxylin-eosin staining was performed to explore the biological responses of periodontium at the distal mesial root pressure area.Anti-tartrate acid phospha-tase staining was performed to calculate the number and distribution of osteoclasts at the distal mesial root pressure area,and MMP-9 was evaluated by immunohistochemistry to examine the number of MMP-9(+)monocytes and multinucleated cells in the same district as the TRAP staining.Results Compared with those WT mice at 3,7,14 and 21 days,OTM distance showed a gradual increased tendency according with experimental time over 21 days.The widths of periodontal ligament on the pressure side were markedly greater in CB2-/-mice than WT mice at 7,14 and 21 days(P＜0.000 1).The numbers of TRAP positive osteoclasts were significantly greater in CB2-/-mice than those in WT mice at 14 days of OTM(P＜0.001).MMP-9 immunohistochemical staining showed that the number of MMP-9(+)monocytes and multinucleated cells was more in CB2-/-mice than that in WT mice at 14 days of OTM(P＜0.05).Conclusion The absence of CB2 accelerates orthodontic tooth movement under or-thodontic force.The absence of CB2 reinforces bone resorption in orthodontic tooth movement compressive area dur-ing orthodontic tooth movement.

Objective:To analyze the clinical characteristics of hemodialysis patients with corona virus disease 2019(COVID-19)in a single-center from Beijing.Methods:Patients with COVID-19 who re-ceived regular hemodialysis at Peking University Third Hospital from November 30,2022 to January 4,2023 were selected as the study objects.Clinical symptoms,severity and duration of symptoms during the period of virus positive were investigated in the form of questionnaires,and the basic information of the patients,as well as the results of blood tests(routine blood and blood biochemistry,etc.)before and af-ter infection,dialysis treatment and the outcome of the disease were collected by consulting medical re-cords.Results:A total of 203 subjects were included in this study,including 148 mild cases(72.91％),23 medium cases(11.33％),32 severe and critical cases(15.76％),and 16(7.88％)deaths occured during the follow-up.Clinical symptoms mainly included respiratory symptoms(among which 81.77％had cough,68.97％had expectoration),fever(81.28％)and fatigue(65.52％),and fatigue and weakness had the longest duration[9(5,15)days]among all symptoms.Twenty-six patients(12.8％)reduced the dialysis sessions[1(1,2)times],25 patients(12.32％)had the behavior of early finishing dialysis(27 times),reducing the dialysis time by 30.0(20.0,30.5)minutes.Univa-riate analysis showed that the hemoglobin,creatinine,urea nitrogen and ultrafiltration decreased signi-ficantly after infection(P＜0.05).There were significant differences in age,albumin,hemoglobin,creatinine levels and vascular access types among the patients with different clinical subtypes,and the changes of dialysis sessions,fever,expectoration and fatigue degree were also different among the patients with different clinical subtypes(P＜0.05).Multivariate Logistic regression analysis showed that age(OR=1.051,95％CI:1.017-1.086,P=0.003)and albumin levels(OR=0.905,95％CI:0.803-1.019,P=0.098)corrected by fever,expectoration and fatigue levels were still associated with the oc-currence of pneumonia.Conclusion:The morbidity of pneumonia and the proportion of deaths in hemo-dialysis patients with COVID-19 were higher,and some clinical symptoms lasted for a longer time than the general population.During the infection period,the incidence of dialysis-related complications in-creased,hemoglobin and nutritional status decreased.Elderly patients and patients with low albumin level had a higher risk of developing pneumonia after infection.

【Objective】 To explore lifestyle patterns among Chinese preschool school children by latent class analysis, and to analyze its associations with behavior problems from person-centered perspective, in order to provide theoretical reference for improving children′s mental health. 【Methods】 A questionnaire survey was conducted among parents of children aged 3 - 6 years old in five kindergartens in Xuzhou city by cluster sampling from April to May 2021.The survey content included the demographic characteristics, rearing environment, life behaviors and behavior problems, which was measured by Strengths and Difficulties Questionnaire(SDQ). Latent class analysis was used to explore latent lifestyle patterns.Unadjusted and adjusted Logistic regression analysis was used to test the associations between latent lifestyle patterns and behavior problems. 【Results】 The sample size was 1 190, including 618 (51.9%) boys.Latent class analysis for 7 life behaviors showed that three latent class model was the best one: low-risk group (206, 17.3%), medium-risk group (721, 60.6%) and high-risk group (263, 22.1%).After controlling demographic factors, adjusted Logistic regression model showed that compared to low-risk group, children in high-risk group had more risks of developing hyperactivity (OR=2.129, 95%CI: 1.230 - 3.685), peer problems (OR=2.051, 95%CI: 1.316 - 3.197), and total difficulties (OR=2.081, 95%CI: 1.290 - 3.356). 【Conclusions】 Improper dietary balance and irrational structure of daily activities substantially escalate the risk of emotional and behavioral issues in preschool-age children.Helping preschool children form a healthy lifestyle pattern is conducive to preventing behavioral problems.