Effect of Early Intervention of Yishen Huazhuo Prescription on Learning and Memory of Accelerated Aging SAMP8 Mice and Its Mechanism / 中国实验方剂学杂志

ObjectiveTo investigate the impact of early intervention with Yishen Huazhuo prescription （YHP） on the learning and memory of accelerated aging model mice， as well as its underlying mechanism. MethodForty-eight 3-month-old male SAMP8 mice were randomly assigned into four groups， including the model group， low-dose YHP group， high-dose YHP group， and donepezil group. Additionally， 24 SAMR1 mice of the same age were divided into a control group and a YHP treatment control group， each consisting of 12 mice. The YHP groups received YHP at doses of 6.24 g·kg-1 and 12.48 g·kg-1， while the donepezil group was treated with donepezil at a dose of 0.65 mg·kg-1. The model group and control groups were given physiological saline. The mice were gavaged once daily for a duration of four weeks. Spatial learning and memory abilities of mice were assessed using the Morris water maze test. Immunofluorescence staining was employed to evaluate neuronal density as well as expression levels of M1 microglial （MG） polarization marker inducible nitric oxide synthase （iNOS） and M2 MG polarization marker arginase-1 （Arg-1） in the hippocampus region. Enzyme-linked immunosorbent assay （ELISA） was used to measure serum levels of pro-inflammatory factor interleukin 1β （IL-1β） and anti-inflammatory factor transforming growth factor-β1 （TGF-β1）. Furthermore， Western blot analysis was conducted to determine expressions of amyloid β peptide1-42 （Aβ1-42） along with triggering receptor expressed on myeloid cells 2 （TREM2）/nuclear factor kappa B （NF-κB） signaling pathway-related proteins TREM2， phospho （p）-NF-κB p65， and phospho-inhibitory kappa B kinase β （IKKβ） in the hippocampus. ResultCompared with the control group， the model group exhibited a significantly prolonged escape latency （P<0.01）， a significant reduction in neuron-specific nuclear protein （NeuN） expression in the hippocampus， a significant increase in iNOS expression in MG， and a significant decrease in Arg-1 expression. The serum IL-1β content was significantly increased， while the TGF-β1 content was significantly decreased. Additionally， there was a significant decrease in TREM2 expression in the hippocampus and significant increases in p-NF-κB p65， p-IKKβ， and Aβ1-42 expressions （P<0.05， P<0.01）. However， no significant changes were observed in escape latency， times of crossing the platform， and hippocampal NeuN expression in the YHP treatment control group. Conversely， iNOS expression in MG as well as the hippocampal p-NF-κB p65， p-IKKβ， and Aβ1-42 expressions were significantly decreased. Furthermore， TREM2 expression was significantly increased （P<0.05， P<0.01）. In comparison to the model group， the low-dose YHP group showed a significantly shortened escape latency and an increased number of crossing the platform （P<0.05， P<0.01）. In the high-dose YHP group， the escape latency was significantly shortened （P<0.05）. In the low-dose YHP group， high-dose YHP group， the expression of NeuN in the hippocampus was significantly increased， the expression of iNOS in MG was significantly decreased， and the expression of Arg-l was significantly increased. The serum IL-1β content was significantly decreased， while the TGF-β1 content was significantly increased. Furthermore， the expression of TREM2 in the hippocampus was significantly increased， and the expressions of p-NF-κB p65， p-IKKβ， and Aβ1-42 were significantly decreased （P<0.01）. ConclusionEarly YHP intervention may promote the transformation of hippocampal MG from M1 to M2 by regulating the TREM2/NF-κB signaling pathway， reduce the release of neuroinflammatory factors， protect hippocampal neurons， and reduce the deposition of Aβ1-42， and finally delay the occurrence of learning and memory decline in SAMP8 mice.

Analysis of the Treatment Strategy of Heart Failure with Preserved Ejection Fraction Based on ZHANG Boli's Theory of “Damp-turbidity and Phlegm-rheum Type of Diseases” / 中医杂志

Professor ZHANG Boli believed that the core pathogenesis of heart failure with preserved ejection fraction （HFpEF） is weak pulse at yang and wiry pulse at yin. By referring to the theory of “damp-turbidity and phlegm-rheum type of diseases”， he proposed that yin pathogens of damp-turbidity and phlegm-rheum may damage yang qi in each stage of HFpEF， thus aggravating the trend of weak pulse at yang and wiry pulse at yin， which played an important role in the deterioration of HFpEF. Therefore， Professor ZHANG Boli advocated that importance should be attached to the elimination of yin pathogen and the protection of yang qi during the various stages of HFpEF in order to delay the aggravation of weak pulse at yang and wiry pulse at yin； he put forward the idea of staged treatment that “yin pathogen should be dispelled and yang qi should be demonstrated”； and he formulated the treatment strategy of treating the disease as early as possible， eliminating pathogens and protecting yang， interrupting the disease trend， using warm-like medicinals， and activating blood circulation， to enrich the theoretical system of traditional Chinese medicine in the treatment of HFpEF.

A study on the application of cross-frequency coupling characteristics of neural oscillation in the diagnosis of mild cognitive impairment / 生物医学工程学杂志

In order to fully explore the neural oscillatory coupling characteristics of patients with mild cognitive impairment (MCI), this paper analyzed and compared the strength of the coupling characteristics for 28 MCI patients and 21 normal subjects under six different-frequency combinations. The results showed that the difference in the global phase synchronization index of cross-frequency coupling under δ-θ rhythm combination was statistically significant in the MCI group compared with the normal control group ( P = 0.025, d = 0.398). To further validate this coupling feature, this paper proposed an optimized convolutional neural network model that incorporated a time-frequency data enhancement module and batch normalization layers to prevent overfitting while enhancing the robustness of the model. Based on this optimized model, with the phase locking value matrix of δ-θ rhythm combination as the single input feature, the diagnostic accuracy of MCI patients was (95.49 ± 4.15)%, sensitivity and specificity were (93.71 ± 7.21)% and (97.50 ± 5.34)%, respectively. The results showed that the characteristics of the phase locking value matrix under the combination of δ-θ rhythms can adequately reflect the cognitive status of MCI patients, which is helpful to assist the diagnosis of MCI.

Mechanism of Traditional Chinese Medicine in Prevention and Treatment of Ulcerative Colitis： Based on Intestinal Microenvironment / 中国实验方剂学杂志

Ulcerative colitis （UC）， a chronic inflammatory bowel disease affecting the colorectum with high morbidity and prevalence， has become a global burden. However， the causes and pathogenesis are still unclear. Available studies have verified that the imbalance of intestinal microenvironment is crucial in the occurrence and development of UC. Intestinal microenvironment is mainly composed of intestinal microbiota and intestinal mucosal cells， which are involved in the physiological and pathological activities of the body through the intestinal microbial barrier， chemical barrier， mechanical barrier， and immune barrier. Thus， probiotic agents， 5-aminosalicylic acid preparations， corticosteroids， immunosuppressants， biological preparations and other drugs are commonly used in western medicine for the treatment of UC， which， however， have limitations. Therefore， it is the key task for the prevention and treatment of UC to find new therapies. In recent years， it has been found that traditional Chinese medicine （TCM） has unique advantages in the prevention and treatment of UC. Chinese medicine compounds and Chinese medicine monomers can regulate the intestinal microenvironment through multiple pathways and targets， thereby intervening the occurrence and development of UC. It has gradually become a hot spot in the prevention and treatment of UC and attracted extensive attention. Therefore， this study first discussed the correlation between intestinal microenvironment imbalance and UC and then summarized the mechanisms of TCM against UC from the aspects of regulating intestinal flora， improving chemical barrier， protecting mechanical barrier， and inhibiting immune inflammatory response， in order to provide new ideas for the research on TCM in the treatment of UC.

Multiple portions enteral nutrition and chyme reinfusion of a blunt bowel injury patient with hyperbilirubinemia undergoing open abdomen: A case report / 中华创伤杂志(英文版)

Blunt bowel injury (BBI) is relatively rare but life-threatening when delayed in surgical repair or anastomosis. Providing enteral nutrition (EN) in BBI patients with open abdomen after damage control surgery is challenging, especially for those with discontinuity of the bowel. Here, we report a 47-year-old male driver who was involved in a motor vehicle collision and developed ascites on post-trauma day 3. Emergency exploratory laparotomy at a local hospital revealed a complete rupture of the jejunum and then primary anastomosis was performed. Postoperatively, the patient was transferred to our trauma center for septic shock and hyperbilirubinemia. Following salvage resuscitation, damage control laparotomy with open abdomen was performed for abdominal sepsis, and a temporary double enterostomy (TDE) was created where the anastomosis was ruptured. Given the TDE and high risk of malnutrition, multiple portions EN were performed, including a proximal portion EN support through a nasogastric tube and a distal portion EN via a jejunal feeding tube. Besides, chyme delivered from the proximal portion of TDE was injected into the distal portion of TDE via a jejunal feeding tube. Hyperbilirubinemia was alleviated with the increase in chyme reinfusion. After 6 months of home EN and chyme reinfusion, the patient finally underwent TDE reversal and abdominal wall reconstruction and was discharged with a regular diet. For BBI patients with postoperative hyperbilirubinemia who underwent open abdomen, the combination of multiple portions EN and chyme reinfusion may be a feasible and safe option.

Chemical constituents of diterpenoids from Boswellia carterii / 中国中药杂志

This paper explored the chemical constituents of Boswellia carterii by column chromatography on silica gel, Sephadex LH-20, ODS column chromatography, and semi-preparative HPLC. The structures of the compounds were identified by physicochemical properties and spectroscopic data such as infrared radiation(IR), ultra violet(UV), mass spectrometry(MS), and nuclear magnetic resonance(NMR). Seven diterpenoids were isolated and purified from n-hexane of B. carterii. The isolates were identified as(1S,3E,7E,11R,12R)-11-hydroxy-1-isopropyl-4,8,12-trimethyl-15-oxabicyclo[10.2.1]pentadeca-3,7-dien-5-one(1),(1R,3S,4R,7E,11E)-4,8,12,15,15-pentamethyl-14-oxabicyclo[11.2.1]hexadeca-7,11-dien-4-ol(2), incensole(3),(-)-(R)-nephthenol(4), euphraticanoid F(5), dilospirane B(6), and dictyotin C(7). Among them, compounds 1 and 2 were new and their absolute configurations were determined by comparison of the calculated and experimental electronic circular dichroisms(ECDs). Compounds 6 and 7 were obtained from B. carterii for the first time.

Influencing Factors and Prediction Model of Performance of Needle Visualization in Fine Needle Aspiration of Thyroid Nodules / 中国医学科学院学报

Objective To investigate the influencing factors and establish a model predicting the performance of needle visualization in fine-needle aspiration (FNA) of thyroid nodules. Methods This study prospectively included 175 patients who underwent FNA of thyroid nodules in the Department of Ultrasound in China-Japan Friendship Hospital and compared the display of the needle tips in the examination of 199 thyroid nodules before and after the application of needle visualization.We recorded the location,the positional relationship with thyroid capsule,ultrasonic characteristics,and the distribution of the soft tissue strip structure at the puncture site of the nodules with unclear needle tips display before using needle visualization.Furthermore,according to the thyroid imaging reporting and data system proposed by the American College of Radiology,we graded the risk of the nodules.Lasso-Logistic regression was employed to screen out the factors influencing the performance of needle visualization and establish a nomogram for prediction. Results The needle tips were not clearly displayed in the examination of 135 (67.8%) and 53 (26.6%) nodules before and after the application of needle visualization,respectively,which showed a significant difference (P<0.001).Based on the positional relationship between the nodule and capsule,anteroposterior/transverse diameter (A/T) ratio,blood supply,and the distribution of subcutaneous strip structure at the puncture site,a nomogram was established to predict the probability of unclear display of the needle tips after application of needle visualization.The C-index of the prediction model was 0.75 (95%CI=0.67-0.84) and the area under the receiver operating characteristic curve was 0.72.The calibration curve confirmed the appreciable reliability of the prediction model,with the C-index of 0.70 in internal validation. Conclusions Needle visualization can improve the display of the needle tip in ultrasound-guided FNA of thyroid nodules.The nomogram established based on ultrasound features such as the positional relationship between the nodule and capsule,A/T ratio,blood supply,and the distribution of subcutaneous strip structure at the puncture site can predict whether needle visualization is suitable for the examination of nodules.

Global Burden of Cardiovascular Disease Attributable to High Temperature in 204 Countries and Territories from 1990 to 2019 / 生物医学与环境科学（英文）

OBJECTIVE@#This study aimed to estimate spatiotemporal variations of global heat-related cardiovascular disease (CVD) burden from 1990 to 2019.@*METHODS@#Data on the burden of heat-related CVD were derived from the Global Burden of Disease Study 2019. Deaths and disability-adjusted life years (DALYs) were used to quantify heat-induced CVD burden. We calculated the age-standardized mortality rate (ASMR) and DALY rate (ASDR) per 100,000 population to compare this burden across regions. Generalized linear models were applied to evaluate estimated annual percentage changes (EAPC) for temporal trends from 1990 to 2019. The correlation between the socio-demographic index (SDI) and age-standardized rate was measured using the Spearman rank test.@*RESULTS@#Heat-induced CVD caused approximately 90 thousand deaths worldwide in 2019. Global ASMR and ASDR of heat-related CVD in 2019 were 1.17 [95% confidence interval ( CI): 0.13-1.98] and 25.59 (95% CI: 2.07-44.17) per 100,000 population, respectively. The burden was significantly increased in middle and low-SDI regions and slightly decreased in high-SDI regions from 1990 to 2019. ASMR showed an upward trend, with the most considerable increase in low-latitude countries. We observed a negative correlation between SDI and EAPC in ASMR ( r s = -0.57, P < 0.01) and ASDR ( r s = -0.59, P < 0.01) among 204 countries.@*CONCLUSION@#Heat-attributable CVD burden substantially increased in most developing countries and tropical regions.

Efficacy of high-dose dual therapy for Helicobacter pylori infection eradication in servicemen: a randomized controlled trial / 中华内科杂志

Objective: To assess the efficacy and cost-effectiveness of high-dose dual therapy compared with bismuth-containing quadruple therapy for treating Helicobacter pylori(H.pylori) infection in servicemen patients. Methods: A total of 160 H. pylori-infected, treatment-naive servicemen, including 74 men and 86 women, aged from 20 years to 74 years, with a mean (SD) age of 43 (13) years, tested in the First Center of Chinese PLA General Hospital from March 2022 to May 2022 were enrolled in this open-label, randomized controlled clinical trial. Patients were randomly allocated into 2 groups: the 14-day high-dose dual therapy group and the bismuth-containing quadruple therapy group. Eradication rates, adverse events, patient compliance, and drug costs were compared between the two groups. The t-test was used for continuous variables, and the Chi-square test for categorical variables. Results: No significant difference in H. pylori eradication rates were found between high-dose dual therapy and bismuth-containing quadruple therapy by ITT, mITT and PP analysis[ITT:90.0% (95%CI 81.2%-95.6%) vs. 87.5% (95%CI 78.2%-93.8%), χ2=0.25, P=0.617;mITT:93.5% (95%CI 85.5%-97.9%) vs. 93.3% (95%CI 85.1%-97.8%), χ2<0.01, P=1.000; PP: 93.5% (95%CI 85.5%-97.9%) vs. 94.5% (95%CI 86.6%-98.5%), χ2<0.01, P=1.000 ]. The dual therapy group exhibited significantly less overall side effects compared with the quadruple therapy group [21.8% (17/78) vs. 38.5% (30/78), χ2=5.15,P=0.023]. There were no significant differences in the compliance rates between the two groups [98.7%(77/78) vs. 94.9%(74/78), χ2=0.83,P=0.363]. The cost of medications in the dual therapy was 32.0% lower compared with that in the quadruple therapy (472.10 RMB vs. 693.94 RMB). Conclusions: The dual regimen has a favorable effect on the eradication of H. pylori infection in servicemen patients. Based on the ITT analysis, the eradication rate of the dual regimen is grade B (90%, good). Additionally, it exhibited a lower incidence of adverse events, better compliance and significantly reduced cost. The dual regimen is expected to be a new choice for the first-line treatment of H. pylori infection in servicemen but needs further evaluation.

Role of blood markers in predicting the failure of prosthesis removal and antibiotic-loaded bone cement spacer implantation for treatment of periprosthetic joint infection / 中华外科杂志

Objective: To investigate the value of inflammation,coagulation and nutrition markers in predicting the failure of prosthesis removal and antibiotic-loaded bone cement spacer implantation for treatment of periprosthetic joint infection(PJI). Methods: A retrospective study was conducted on 70 patients who undertook prosthesis removal and antibiotic-loaded bone cement spacer implantation due to PJI from June 2016 to October 2020 in the Department of Orthopedics,Henan Provincial People's Hospital. There were 28 males and 42 females,aged (65.5±11.9) years (range: 37 to 88 years). Patients were divided into two groups as the successful group and the failed group depended on whether reinfection occurred after prosthesis removal and antibiotic-loaded bone cement spacer implantation at the last follow up. Patient demographics,laboratory values (C-reactive protein (CRP),erythrocyte sedimentation rate (ESR),ESR and CRP ratio (ESR/CRP),white blood cell count(WBC),platelet count(PLT),hemoglobin(HB),total lymphocyte count(TLC),albumin、fibrinogen(FIB),CRP and albumin ratio (CAR),prognostic nutritional index(PNI)),and reinfection rates were assessed. Comparison between groups was conducted by the independent sample t test or χ2 test. Receiver operating characteristic (ROC) curve was plotted,and the area under the curve (AUC),optimal diagnostic threshold,sensitivity,and specificity were analyzed to predict the failure of prosthesis removal and antibiotic-loaded bone cement spacer implantation. Results: All patients were followed up for at least two years,and the follow-up time was (38.4±15.2) months (range: 24 to 66 months). Fifteen patients suffered failure after prosthesis removal and antibiotic-loaded bone cement spacer implantation,while the other 55 patients succeeded. The overall failure rate of prosthesis removal and antibiotic-loaded bone cement spacer implantation in PJI treatment was 21.4%. Level of preoperative CRP(35.9±16.2)mg/L,PLT(280.0±104.0)×109/L and CAR 1.3±0.8 in successful group were lower than CRP (71.7±47.3)mg/L,PLT (364.7±119.3)×109/L and CAR 2.5±2.0 in failed group (all P<0.05).Whereas,level of preoperative ESR/CRP (3.3±3.1), Albumin (35.3±5.2)g/L and PNI 43.6±6.2 in successful group were higher than ESR/CRP (1.6±1.4),Albumin(31.3±4.8)g/L and PNI (39.2±15.1) in failed group (all P<0.05). AUC of ROC curve,optimal threshold value,sensitivity and specificity of CRP,ESR/CRP, PLT, Albumin,CAR and PNI for the predicting failure of prosthesis removal and antibiotic-loaded bone cement spacer implantation were 0.776(95%CI:0.660 to 0.867),35.4 mg/L,86.7%,67.3%;0.725(95%CI:0.605 to 0.825),1.0,60.0%,78.2%;0.713(95%CI:0.593 to 0.815),253,93.3%,47.3%;0.721(95%CI:0.601 to 0.822),35.7,93.3%,49.1%;0.772(95%CI:0.656 to 0.863),1.1,86.7%,67.3%;0.706(95%CI:0.585 to 0.809),45.7,100%,41.8% respectively. Conclusion: In patients with PJI,CRP>35.4,ESR/CRP≤1.0 and CAR>1.1 could predict the failure of prosthesis removal and antibiotic-loaded bone cement spacer implantation.

Depression and Anxiety During the COVID-19 Pandemic: Epidemiology, Mechanism, and Treatment / 神经科学通报·英文版

The Coronavirus Disease 2019 (COVID-19) pandemic has had an adverse impact on the physical and mental health of the public worldwide. In addition to illness in patients with COVID-19, isolated people and the general population have experienced mental health problems due to social distancing policies, mandatory lockdown, and other psychosocial factors, and the prevalence of depression and anxiety significantly increased during the pandemic. The purpose of this review is to elucidate the epidemiology, contributing factors, and pathogenesis of depression and anxiety. during the pandemic. These findings indicate that physicians and psychiatrists should pay more attention to and identify those with a high risk for mental problems, such as females, younger people, unmarried people, and those with a low educational level. In addition, researchers should focus on identifying the neural and neuroimmune mechanisms involved in depression and anxiety, and assess the intestinal microbiome to identify effective biomarkers. We also provide an overview of various intervention methods, including pharmacological treatment, psychological therapy, and physiotherapy, to provide a reference for different populations to guide the development of optimized intervention methods.

Time-Dependent Changes in the Bladder Muscle Metabolome After Traumatic Spinal Cord Injury in Rats Using Metabolomics / 대한배뇨장애요실금학회지

Purpose@#The main treatment options of neurogenic bladder remains catheterization and long-term oral medications. Metabolic interventions have shown good therapeutic results in many diseases. To date, no studies have characterized the metabolites of the detrusor muscle during neurogenic bladder. Using metabolomics, new muscle metabolomic signatures were identified to reveal the temporal metabolic profile of muscle during disease progression. @*Methods@#We used 42 Sprague-Dawley rats (200±20 g, males) for T10 segmental spinal cord injury modeling and collected detrusor tissue and performed nontargeted metabolomics after sham surgery, 30-minute, 6-hour, 12-hour, 24-hour, 5-day, and 2-week postmodelling, to identify the dysregulated metabolic pathways and key metabolites. @*Results@#By comparing mzCloud, mzVault, MassList, we identified a total of 1,271 metabolites and enriched a total of 12 metabolism-related pathways with significant differences (P<0.05) based on Kyoto Encyclopedia of Genes and Genomes analysis. Metabolites in several differential metabolic pathways such as ascorbate and aldarate metabolism, Steroid hormone biosynthesis, and carbon metabolism are altered in a regular manner before and after ridge shock. @*Conclusions@#Our study is the first time-based metabolomic study of rat forced urinary muscle after traumatic spinal cord injury, and we identified multiple differential metabolic pathways during injury that may improve long-term management strategies for neurogenic bladder and reduce costs in long-term treatment.

Sorting and Elaborating on the Combination Theory of Herb Pairs / 中医杂志

@#As the smallest combination unit of Chinese medicinals， herbal pairs serve as the bridge between medicinals and formulas， whose combination theory reflects the basic characteristics of Chinese medicinals combination and the core essence of prescription composition. Simultaneously， as a key combination of medicinals in clinical treatment of diseases， syndromes， and symptoms， herbal pairs are the main form of clinical medication in traditional Chinese medicine （TCM） as well as the characteristic advantage of treating diseases. This article summarized that “mutual complement of medicinals of same or antagonism flavor and nature” theory is the theoretical origin， and efficacy-enhancement and toxicity-attenuation is the core purpose of the combination of herbal pairs. The property theory of Chinese medicinals and the thought of differentiation and treatment are the main basis of the combination of herbal pairs， and pertinence and flexibility are the key points in clinical application. All mentioned above are expected to provide theoretical guidance for the clinical use and modern research of herbal pairs.

Evaluation method of assistance effect of extravehicular activity glove exoskeleton under weightlessness / 中国康复理论与实践

ObjectiveTo establish a multi index fusion hand grip fatigue prediction model to evaluate the power-assisted effect of the glove exoskeleton prototype for extravehicular clothing. MethodsBP neural network algorithm was used to establish a hand fatigue prediction model. The related factors of hand fatigue were determined with isometric grasping fatigue experiment, and the input variables of BP neural network were determined as cylinder diameter, grasping force, grasping duration and root mean square of electromyography. The fatigue data corresponding to variables of each group were obtained through experiments and subjective fatigue measurement scales, and a fatigue evaluation model based on multi-source fusion of BP neural network algorithm was established. The relationship model between fatigue and assistance effect was established, and the assistance effect of the exoskeleton prototype was evaluated through the degree of fatigue relief. ResultsThe correlation coefficient was 0.974 between the predicted results of the model and the target value. Moreover, it effectively predicted the assistance effect of different prototypes. ConclusionThe BP neural network model established by combining the grasping strength, grasping object parameters and human electromyography can predict hand fatigue, which can be used to evaluate the assistance effect of glove exoskeleton and other hand aids.

Association between suicidal ideation and exposure to socialecological risk factors among middle school students in Taiyuan City / 中国学校卫生

Objective@#To understand the current situation of suicidal ideation among middle school students in Taiyuan City and its correlation with exposure to social ecological risk factors, so as to provide a reference basis for exploring the causes of suicidal ideation among middle and high school students and formulating effective preventive measures.@*Methods@#A questionnaire survey was conducted among 2 639 middle school students in urban and rural areas of Taiyuan City by multistage stratified random cluster sampling, including general demography characteristics, social ecological risk factors and suicidal ideation. SPSS 26.0 software was used for Chi squared test and binary Logistic regression analysis.@*Results@#The overall detection rate of suicidal ideation was 24.7 %. There were statistically significant differences in the detection rate of suicidal ideation among middle school students in different gender, grade, family residence, maternal education level, perceived family economic conditions, number of close friends, self-perceived academic burden ( χ 2=38.17, 13.44, 10.77, 8.15, 19.76, 18.95, 59.75, P <0.05). After adjusting the general demography characteristics, the binary Logistic regression showed that moderate and high risk in the individual, family and cultural dimension, and high risk in the school dimension of the social ecology were all positively correlated with suicidal ideation among middle school students ( OR=1.38, 2.28, 1.97, 3.28, 1.48, 2.15, 1.71, P <0.05).@*Conclusion@#The suicidal ideation among middle school students is related to individuals, families, and schools in the social ecological microsystem, as well as the cultural environment in the macro system. It is necessary to conduct intervention in suicidal ideation at the individual, family, and school levels, meanwhile, strengthening social and cultural construction to reduce the impact of adverse factors on the mental health among adolescents.

Association between dietary quality and perceived stress based on the CHNS database / 公共卫生与预防医学

Objective To explore the association between dietary quality and perceived stress among adult Chinese. Methods The China Health and Nutrition Survey (CHNS) was used to investigate the association between dietary quality and perceived stress in Chinese adults. The Chinese Perceived Stress Scale (CPSS) was used to assess the perceived stress in Chinese adults. Binary logistic regression models were utilized to explore the relationship between diet quality and perceived stress. Restricted cubic splines (RCS) were utilized to clarify the dose response relationship between diet quality and perceived stress. Results Binary logistic regression models revealed that adults with CHEI score ranged from P25 to P50 and higher than P75 had 15.1% (OR=0.849，95%CI：0.738-0.977) and 23.0% (OR=0.770，95%CI：0.666-0.891) reduced risk of high perceived stress after multivariable adjustment when compared with adults with CHEI score less than P25. RCS results showed that the OR value of high perceived stress risk decreased gradually with increasing CHEI score in the overall population, but this association was not statistically significant in adults with lower CHEI score. Conclusion High dietary quality is associated with a reduced risk of high perceived stress. This study provides a theoretical reference for the health effects of high dietary quality on high perceived stress risk reduction.

Relationship between serum lactate and early prognosis after liver transplantation in children / 中华器官移植杂志

Objective:To explore the relationship between serum lactate level and early prognosis after liver transplantation (LT) in children.Methods:Between January 1, 2018 and December 31, 2020, 675 pediatric LT recipients were recruited. Clinical data were retrospectively reviewed, early postoperative serum lactate level and clearance rate recorded and receiver operating characteristic (ROC) curve plotted for determining optimal cut-off values. The inter-group differences in early postoperative complications and patient/graft survival rates were compared.Results:According to ROC, blood lactate levels >1.99 mmol/L at 12 h postoperatively were associated with early postoperative graft loss (AUC 0.73, 95% CI: 0.62-0.84, P=0.01). Age and weight of recipients in high-level group were 7.17(5.70-10.40) month and 7.00(6.00-8.60) kg and both were significantly lower than those in low-level group [7.80(6.21-13.58) month and 7.20(6.45-9.00) kg]. The inter-group differences were statistically significant ( P=0.017, P=0.034). Blood plasma transfusion volume, red blood cell transfusion volume, portal vein pressure pre-closure, postoperative intensive care unit (ICU) stay, ventilator use time, early allograft dysfunction rate, early postoperative pulmonary infection rate and recipient mortality rate in high-level group were 400 (200-400) ml, 2.00 (2.00-4.00) U, (15.71±4.44) mmHg, 2.50(2.00-3.00) day, 3.81(2.47-8.50) hour, 22.95%(42/185), 16.76%(31/185) and 6.49%(12/185) respectively. The above values were significantly higher than those in low-level group 200(100-400) ml, 2.00 (2.00-3.00) U, (14.69±4.68) mmHg, 2.00(2.00-3.00) day, 3.53(2.34-6.12) hour, 14.69%(72/490), 11.02%(54/490) and 1.43%(7/490) respectively. The inter-group differences were statistically significant ( P<0.001, P=0.014, P=0.015, P=0.037, P=0.043, P=0.011, P=0.045 & P<0.001). The incidence of early postoperative acute cellular rejection was significantly lower in high-level group than that in low-level group [11.89%(22/185) vs 22.86%(112/490)]. The inter-group difference was statistically significant ( P=0.01). The 1/3-month cumulative survival rates of patient/graft were 94.6%, 94.1% and 92.4%, 91.4% in high-level group versus 99.2%, 98.6% and 99.0%, 98.4% in low-level group. There were significant inter-group differences ( P=0, P<0.000 1). With a rising level of lactate at 12 h postoperatively, risk of early graft loss and early recipient mortality spiked markedly ( P<0.05). Conclusions:Serum lactate level post-operation is a valid predictor of early prognosis after LT in children.

Effect of parental donor liver on early acute cellular rejection after live donor liver transplantation in infants / 中华器官移植杂志

Objective:To evaluate the effect of parental liver donation on early acute cellular rejection(ACR)after liver transplantation(LT)in children aged under one year.Methods:From January 2018 to January 2021, retrospective review is conducted for clinical data of living donor LT recipients and donors aged under 1 year at Tianjin First Central Hospital.Donor livers are assigned into two groups of paternal donor liver(156 cases)and maternal donor liver(206 cases)according to the source of donor liver, Clinical characteristics and postoperative ACR occurrence of two groups are analyzed.Results:The rates of ACR during early postoperative period is 14.9%(54/362), 20.5%(32/156)in paternal liver donor group and 10.7%(22/206)in maternal liver donor group.There is statistically significant difference(λ 2=6.763, P=0.009).In analysis of gender matching of donor recipients, the rates of ACR is 22.6% in paternal donor group and 10.3% in maternal donor group.There is statistically significant difference(λ 2=5.411, P=0.020).Median time of initial postoperative ACR is 13.00(8.25~20.25)day in paternal liver donor group and 17.00(9.00~28.25)day in maternal donor group.The difference is not statistically significant( P>0.05). ACR is mostly mild-to-moderate in two groups . Conclusions:In living donor LT for children aged under 1 year, the rates of early ACR is lower for maternal donor than that for paternal donor, especially in female recipients.

Prognostic analysis of steatosis donor liver transplantation: a multicenter clinical trial / 中华器官移植杂志

Objective:To explore the early and medium-long term outcomes of steatosis donor liver transplantation(LT)for an optimal clinical application.Methods:From January 2015 to December 2020, this retrospective cohort study was conducted jointly at Shulan (Hangzhou) Hospital, First Affiliated Hospital of Zhejiang University and First Hospital of Jilin University. The relevant clinicopathological and follow-up data were collected from 1535 LT recipients. For comparison, propensity score was utilized for case-control matching of steatosis and non-steatosis donor livers. According to presence or absence of liver steatosis, the recipients were divided into two groups of steatosis donor liver (n=243) and non-steatosis donor liver (n=1292). And 1∶1 propensity score matching was made for two groups. Then early and medium-long term outcomes of two groups were examined. Counts were described as absolute numbers. Kaplan-Meier method was employed for calculating survival time and plotting survival curve and Log-rank test for survival analysis. COX regression model was utilized for univariate and multivariate analyses. Based on basic metabolic disease pre-LT, steatosis donor liver recipients were divided into three subgroups: BMI ≥25 kg/m 2 with hypertension or diabetes (n=21), BMI<25 kg/m 2 and no hypertension or diabetes (n=130) and other recipients (n=92). A comparative study was performed for determining the prognosis of subgroups according to the different characteristics of recipient and donor liver. Results:No significant inter-group difference existed in 2-year survival post-LT ( P=0.174). However, significant inter-group difference in survival existed after 2 years post-LT ( P=0.004). And 3/5-year survival rate of steatosis donor liver was 66.4% and 44.2% respectively. Both were significantly lower than those of non-steatosis donor liver. Multivariate Cox regression analysis indicated that steatosis donor liver and male recipients were independent risk factors for prognosis >2 years survival post-LT( P=0.008, P=0.004). Subgroup analysis of steatosis liver donors showed that the prognosis of patients with BMI ≥25 kg/m 2 with hypertension or diabetes was significantly worse than other subgroups (BMI <25 kg/m 2 with no hypertension or diabetes and other recipients) <2 years survival post-LT ( P=0.029, P=0.043). Conclusions:Steatosis donor liver does not affect early survival of recipients, yet reduces medium-long term survival rate of recipients notably. In steatosis donor liver recipients, early survival rate declines markedly in recipients with preoperative BMI ≥25 kg/m 2 with hypertension or diabetes as compared with BMI <25 kg/m 2 with no hypertension or diabetes group.

Risk factors associated with intraoperative massive haemorrhage in patients with renal cell carcinoma combined with tumor thrombus / 中华泌尿外科杂志

Objective:To investigate the risk factors of massive intraoperative bleeding in patients with renal cell carcinoma and tumor thrombus.Methods:Data of 177 patients with renal cell carcinoma and tumor thrombus in Peking University Third Hospital from January 2017 to July 2020 were retrospectively analyzed, including 129 males and 48 females. The average age was (59.3±10.6) years. The tumors were located on the left in 66 cases and on the right in 111 cases. The tumor size was less than 7 cm in 52 cases, 7-10 cm in 63 cases and >10 cm in 62 cases. There were 45 cases with tumor thrombus of Mayo grade 0, 101 cases of grade Ⅰ-Ⅱ and 31 cases of grade Ⅲ-Ⅳ. There were 93 cases undergoing laparoscopic surgery and 84 cases undergoing open surgery. Segmental resection of vena cava was performed in 30 cases. Massive intraoperative bleeding was defined as the total of bleeding ≥ 1 500 ml. The difference of clinical data between massive bleeding group and non-massive bleeding group was compared. Logistic multivariate regression was used to analyze the independent risk factors of massive intraoperative bleeding.Result:The median intraoperative bleeding of 177 cases was 600 (200, 1 500) ml. There were 50 cases (28.2%) in massive bleeding group and 127 cases(71.8%) in non-massive bleeding group. Comparing massive bleeding group and non-massive bleeding group, the preoperative ASA scores of 1-2 scores were 38 cases (76.0%) and 114 cases (89.8%) respectively, and the 3 scores were 12 cases (24.0%) and 13 cases (10.2%) respectively ( P=0.029); Hemoglobin was (116.8±23.1) g/L and (127.6±23.6) g/L respectively ( P=0.006); The tumor size less than 7 cm in 10 cases (20.0%) and 42 cases (33.1%), 7-10 cm in 15 cases (30.0%) and 48 cases (37.8%), and >10 cm in 25 cases (50.0%) and 37 cases (29.1%)( P=0.024); Tumor thrombus of Mayo grade 0 were 3 cases (6.0%) and 42 cases (33.1%), grade Ⅰ-Ⅱ were 27 cases (54.0%) and 74 cases (58.3%), grade Ⅲ-Ⅳ were 20 cases (40.0%) and 11 cases (8.6%) respectively ( P<0.01); Open surgery were performed in 42 (84.0%) and 42 (33.1%) cases ( P<0.01); Segmental resection of vena cava was performed in 19 cases (38.0%) and 11 cases (8.7%) respectively ( P<0.01). Multivariate analysis showed that Mayo grade Ⅲ-Ⅳ tumor thrombus ( OR=10.261, P=0.006), tumor size > 10 cm ( OR=3.223, P=0.030), open surgery ( OR=5.454, P<0.01) and segmental resection of vena cava ( OR=4.441, P<0.01) were independent risk factors for massive intraoperative bleeding. The median bleeding of Mayo grade Ⅲ-Ⅳ tumor thrombus, tumor size >10cm, open surgery and segmental resection of vena cava were 2000, 750, 1 450 and 1 650 ml respectively. Conclusions:Renal cell carcinoma with tumor thrombus has a high risk of bleeding. Mayo grade Ⅲ-Ⅳ tumor thrombus, tumor size >10 cm, open surgery and segmental resection of vena cava are independent risk factors for massive intraoperative bleeding.