Objective To analyse and summarize the MRI characteristics of tumor‐like inflammatory demyelinating diseases (TIDD) .Methods MRI findings of 10 cases with pathologically proved TIDD were analyzed retrospectively ,all patients received plain and enhanced MRI scan .Results 3 cases showed multiple lesions in bilateral frontal and parietal lobes ,and 7 cases showed soli‐tary mass ,in which 2 lesions located in the occipital lobe ,2 in the basal ganglia ,2 in the second to fifth segment of cervical cord ,and 1 lesion located in the left frontal parietal lobe .The shape of 7 lesions were irregular ,2 were stripped ,while 1 lesion was oval .6 cases had clear boundary ,while 4 showed ambiguous .Solitary lesions were 1 .7 cm -5 .6 cm in diameter(mean 4 .0 cm ± 1 .48 cm) .8 cases manifested mild edema while 2 had no edema .On MRI plain scan ,lesions were hypointensity on T1WI and hyperintensity on T2WI in 8 cases ,isointensity on T1 WI and hyperintensity on T2 WI in 2 cases ,and all lesions were hyperintensity on FLAIR sequence .DWI were performed in 3 cases ,all lesions showed hyperintensity ,2 of them had patchy hypointensity signal .Hemorrhage was detected in 3 lesions ,cystic lesions or calcification were not found in all cases .On post‐contrast scan ,3 lesions showed ring like enhancement ,2 showed obviously heterogeneous enhancement ,2 had mild enhancement and 2 cases had no enhancement ,1 presented with open ring like enhancement .Conclusion TIDD shows some specific MRI features ,and MRI is helpful to the diagnosis of TIDD .

Objective To study the change characteristics of erythrocyte parameters in carriers of deletional alpha-thalassemia gene.Methods 389 patients with deletional alpha-thalassemia gene determined by the gap-PCR technique were classified into three groups based on different genotypes of alpha-thalassemia including silent thalassemia group,alpha-thalassemia trait group (265 ca-ses)and intermediate thalassemia group,and contemporaneous 188 healthy adults were randomly selected as the normal control-group(NC).The erythrocyte parameters including RBC,Hb,MCV,MCH,RDW were retrospectively analyzed and their differences were compared among aboved-mentioned groups by the analysis of variance and the multiple comparison.Results Alpha-thalasse-mia manifested by different degrees of microcyte hypochromia.There were statistically significant differences in the erythrocyte pa-rameters among various genotypes and phenotypes about erythrocyte indices(P <0.05).Moreover,the Hb,MCV and MCH values were lower than those in the control group,and had the decreasing tendency with the increase of deletedα-globin gene numbers;but the RDW value was higher than that in the control group,showing the increasing tendency,the differences had statistical siginifi-cance(P <0.05).Conclusion With the increase of deleted α-globin gene number,the characteristic of small-cell low-hemoglobin is more and more remarkable.RBC has a overall increase,while Hb,MCV and MCH have a decreasing tendency,and the heterogeneity of erythrocyte volume is increased.When MCV and MCH decreasing in high risk region,thalassemia should be highly suspected, but normal MCV and MCH can not exclude silent thalassemia and alpha-thalassemia trait.

BACKGROUND:Mesenchymal stem cells possess characteristics such as rapid renewal,targeted homing,tissue repair,and immune regulation,which provide potential for the treatment of inflammatory diseases.In most inflammatory diseases,interleukin-1β is highly expressed.Both exogenous and endogenous mesenchymal stem cells unavoidably exist in an environment with high interleukin-1β concentration. OBJECTIVE:To study the interaction of interleukin-1β with mesenchymal stem cells in inflammatory environment and the mechanism of its influence on the migration and adhesion of mesenchymal stem cells to provide a theoretical basis for adjusting stem cell therapy strategies. METHODS:The first author searched for studies involving interleukin-1β enhancing migration and adhesion of mesenchymal stem cells by computer on CNKI,WanFang,VIP,PubMed,and Web of Science using search terms"interleukin-1β,mesenchymal stem cell,nuclear factor-κB,MAPK,ERK,p38,migration,adhesion"in Chinese and English.The literature tracing method was also used to search for some of the literature.Finally,65 articles were included in the review analysis. RESULTS AND CONCLUSION:(1)In the inflammatory environment,interleukin-1β can regulate the migration and adhesion ability of mesenchymal stem cells.This effect may be achieved by recruiting IRAK1 through interleukin-1RI and then activating TAK1 and IKK in turn.After IKK phosphorylation,nuclear factor-κB and ERK signaling pathways are activated or CXCR expression is upregulated through the p38 pathway to promote mesenchymal stem cell migration and adhesion.However,further standardized research needs to be carried out based on the genetic background of mesenchymal stem cells,the dose and processing time of interleukin-1β.(2)In vitro experiments using pre-stimulated mesenchymal stem cells with interleukin-1β can change the survival environment of mesenchymal stem cells and alter their secretion factors to make them develop towards a more anti-inflammatory direction.On the other hand,under the premise of producing higher levels of anti-inflammatory and pro-nutrient factors,extracted mesenchymal stem cell exosomes can exert anti-inflammatory effects.(3)It has been observed in various animal disease models that pre-stimulating mesenchymal stem cells with interleukin-1β regulates their immune regulation ability,thereby affecting the development and outcome of inflammation.However,this is limited to preclinical basic research only;further verification on efficacy and safety of stem cell therapy with interleukin-1β pre-treated mesenchymal stem cells is required in clinical settings.

Objective To explore the diagnostic value ofcerebrospinal fluid (CSF) lactic acid (LA) level in bacterial meningitis after craniotomy for cerebral hemorrhage in adults.Methods The clinical data of 162 patients with cerebral hemorrhage,admitted to and accepted craniotomy in our hospital from April 2013 to April 2018,were retrospectively collected;patients were divided into infected group (n=75) and non-infected group (n=87) according to whether postoperative bacterial meningitis occurred;univariate analysis was used to compare the differences of CSF-LA concentration and other indicators of CSF between patients of the two groups;multivariate Logistic regression analysis was used to screen the independent factors affecting the occurrence of postoperative bacterial meningitis;receiver operating characteristic (ROC) curve was used to analyze the predictive values of CSF-LA and other indicators in postoperative bacterial meningitis.Furthermore,17 patients with positive bacterial CSF were divided into Gram-positive (G+) bacteria group (n=9) and Gram-negative (G-) bacteria group (n=8);the predictive values of CSF-LA and other indicators for postoperative meningitis of G-bacteria patients were analyzed in the same way.Results (1) The CSF-LA concentration in infected group ([6.3±2.8] mmol/L) was significantly increased as compared with that in non-infected group ([3.3±1.6] mmol/L,P＜0.05);the results of multivariate Logistic regression analysis showed that CSF-LA was an independent influencing factor for postoperative bacterial meningitis (odd ratio=l.547,95％ confidence interval:1.029-2.326,P=0.036);ROC curve results revealed that the area under the curve of CSF-LA concentration in the diagnosis of bacterial meningitis after craniotomy was 0.854 (95％ confidence interval:0.790-0.904),and the optimal cut-off value was 4.61 mmol/L,with sensitivity of 69.3％,specificity of 92.0％,positive predictive value of 88.1％ and negative predictive value of 77.7％.(2) The CSF-LA concentration in G-bacteria group ([9.9±2.9] mmol/L) was significantly increased as compared with that in G+ bacteria group ([5.2±3.1] mmoi/L,P＜ 0.05);ROC curve results revealed that,in patients with positive bacterial CSF,the area under the curve of CSF-LA concentration in diagnosis of meningitis with G-bacteria after craniotomy was 0.861 (95％ confidence interval:0.610-0.978),and the optimal cut-off value was 7.20 mmol/L with sensitivity of 87.5％,specificity of 88.9％,positive predictive value of 87.5％,and negative predictive value of 88.9％.Conclusion Detection for concentration of CSF-LA can help predicting bacterial meningitis afier craniotomy for cerebral hemorrhage and identify G+ and G-bacteria meningitis.

Objective:To investigate the value of 3D CT reconstruction in diagnosis of chronic lateral ankle instability (CLAI) combined with syndesmotic diastasis (SD).Methods:A retrospective study was conducted to analyze the clinical data of 160 patients with CLAI who had been examined by arthroscopy from January 2018 to September 2022 at Department of Foot and Ankle Surgery, Wuhan Fourth Hospital. There were 64 males and 96 females with an age of (39.8±12.6) years. Eighty-one left and 79 right feet were affected; the time from injury to surgery was (27.3±11.6) months. The patients were divided into a widened interval group and a normal interval group according to the syndesmotic width measured, with 2 mm as a critical value. After preoperative 3D CT reconstruction, the differences in anterior tibiofibular distance, posterior tibiofibular distance, the narrowest tibiofibular distance, fibular translation, fibular rotation, and syndesmotic area (SA) were compared between the 2 groups. Univariate and multivariate analyses were performed successively to identify the risk factors. The receiver operating characteristic (ROC) curve was used to identify the best predictive factor and critical value. According to the findings of previous research, the above analyses were repeated to determine the best predictive factor and critical value respectively in the sex subgroup, fibular morphology subgroup and incisura feature subgroup.Results:The binary logistic regression showed that SA was a risk factor for CLAI combined with SD ( OR=1.196, 95% CI: 1.122 to 1.275, P < 0.001). The ROC curve revealed an area under curve of 0.847 and the difference critical value of 22.06 mm 2 that indicated a sensitivity of 80.4% and a specificity of 78.9%, respectively. Subgroup analyses showed that SA was suitable for male and female patients and patients with different fibular morphologies and incisura features but the difference critical values were different. Conclusion:In 3D CT reconstruction, measurement of SA may help the diagnosis of CLAI combined with SD.

Objective:To analyze the clinical phenotypes and molecular genetic characteristics of hereditary spherocytosis (HS) in children.Methods:The clinical data of children with HS in the Affiliated Children′s Hospital of Zhengzhou University from June 2014 to June 2018 were collected and analyzed retrospectively.The peripheral blood samples of 20 children and their parents were collected and targeted capture or whole exon group sequencing was performed using the second generation sequencing technique, and the suspicious mutation sites were verified by Sanger sequencing.Results:A total of 43 pediatric patients (23 males, 20 female) were included in this study.The median age of onset of 1 year old and 11 months (1 month to 10 years old). Pallor (27/43 cases, 62.79%) was the main symptom.Typical clinical manifestations were anemia (36/43 cases, 83.72%), jaundice (35/43 cases, 81.40%), splenomegaly (33/43 cases, 76.74%), and hepatomegaly (27/43 cases, 62.79%). The proportion of spherical erythrocytes in peripheral blood of 23 cases (23/43 cases, 53.49%)≥ 0.1, and the proportion of spherical erythrocytes in bone marrow smears of 17 cases (39.53%) was ≥ 0.1, and 20 cases were positive in erythrocyte osmotic fragility test (20/43 cases, 46.51%). Comparison of 29 children before and after blood transfusion: post-transfusion hemoglobin (Hb) [(88.69±11.22) g/L vs. (78.24±14.47) g/L], mean corpuscular volume (MCV) [(89.37±7.15) fL vs.(84.08±7.49) fL], mean corpuscular hemoglobin (MCH) [(29.12±2.70) pg vs.(27.36±1.95) pg], mean corpuscular hemoglobin corpuscular (MCHC) [(361.79±32.27) g/L vs.(356.31±31.43 ) g/L] were increased, and the total bilirubin (TB) level was lower after blood transfusion than before blood transfusion [(33.27±16.42) μmol/L vs.(41.58±15.40) μmol/L], the differences were statistically significant ( t=-3.538, -5.187, -5.412, -7.404, 2.527, all P<0.05). Seven children underwent splenectomy: postoperative Hb[(116.00±5.54) g/L vs.(75.71±9.96) g/L], MCH[(29.87±1.62) pg vs.(24.61±1.65) pg], MCHC [(391.14±12.99) g/L vs.(315.14±51.99) g/L] all increased, the difference was statistically significant ( t=-9.234, -4.330, -4.031, all P<0.05). The Hb in the operation group was significantly higher than that in the blood transfusion group, including the treatment effect of operation was more significant ( t=-9.247, P<0.05). Thirteen pathogenic mutations (11 new mutations not reported) were detected in 3 genes ( ANK1, SPTB and SPTA1) in 13 children, 8 of who were mutations in ANK1, 4 cases of which were mutations in SPTB and 1 case of which was mutation in SPTA1.Among the 13 mutations, 12 cases were de novo except one inherited from the mother. Conclusions:Anemia and pallor are the initial symptoms of HS in children.Blood transfusion can temporarily improve the symptoms of anemia and jaundice.Splenectomy is an effective and fundamental treatment.The gene diagnosis of 13 pediatric patients got gene diagnosis, which provided basis for genetic consultation of the next fetus.Eleven new mutations were found in ANK1, SPTB, SPTA1 genes, which exten-ded the gene mutation spectrum of HS.

Objective To explore the feasibility of ultrasonic measurement of the skin to hyoid bone distance,skin to epiglottis distance and skin to anterior commissure of vocal cords distance for predicting difficult laryngoscopy exposure in obstructive sleep apnea hypopnea syndrome(OSAHS)patients.Methods One hundred and fifty OSAHS patients with ASAⅠ-Ⅲ level,who underwent elective uvulopalatopharyngoplasty(UPPP)surgery under general anesthesia,were analyzed.Rountine airway assessment(Mallampati classification)and ultrasound measurement of the skin to hyoid bone distance,skin to epiglottis distance and skin to anterior commissure of vocal cords distance were performed before anesthesia.Intubation under direct laryngoscopy and the classification of laryngoscopy exposure was recorded.Cormack-Lehane classification Ⅲ-Ⅳ grade was defined as difficult laryngoscopy exposure.According to the classification results,patients were divided into two groups:non-difficult laryngoscopy exposure group and difficult laryngoscopy exposure group.We analyzed and compared the Malampati grading and ultrasound measurements between two groups.The receiver operating characteristic(ROC)curve and the optimal cut-off point of ultrasonic measurements were calculated.The effects of different methods for predicting difficult laryngoscopy exposure were analyzed.Results The proportion of cases whose Mallampati airway classification grade>Ⅱ in difficult laryngoscopy exposure group was significantly more than that in non-difficult laryngoscopy exposure group(P＜0.05).The skin to hyoid bone distance and skin to epiglottis distance in difficult laryngoscopy exposure group were significantly longer than those in non-difficult laryngoscopy exposure group(P＜0.05).The optimal cut-off point of the skin to hyoid bone distance and skin to epiglottis distance were 1.12 cm and 2.23 cm respectively.There was no significant difference in the skin to anterior commissure of vocal cords distance between two groups.Conclusions Ultrasound measurement of the skin to hyoid bone distance and skin to epiglottis distance had a good predictive value in difficult laryngoscopy exposure of the OSAHS patients.

Objective To analyze the composition of the aqueous extract of Polygonatum Cyrtonema Hua(PCHE)and evaluate its antitumor activity in vitro and in vivo.Our aim is to provide a theoretical basis for the further development and utilization of Polygonatum Cyrtonema Hua.Methods(1)PCHE was prepared by aqueous extraction,and the chemical composition of PCHE was analyzed by UPLC-Q-TOF/MS and phenol-sulfuric acid method.The inhibitory activity on tumor cells proliferation of PCHE was detected by CCK-8 assay.Cell cycle and apoptosis were detected by flow cytometry,and the expression of apoptosis-related proteins Bcl-2 and Bax was detected by Western Blot.The inhibitory activity of PCHE-containing serum on cell proliferation was detected.(2)A B16 tumor-bearing mice model was constructed and model mice were randomly divided into the model group(saline),the positive drug group(CTX:50 mg·kg-1),and PCHE low-,medium-,and high-dose groups(55.9,111.8,223.6 mg·kg-1),and treated by gavage for 7 days.Changes in body weight and tumor volume of mice were observed during the treatment period.The mice were executed after the treatment,and the histopathological changes of heart,liver,spleen,lung,kidney and tumor were observed by hematoxylin-eosin(HE)staining.The protein expression of Bcl-2 and Bax in tumor tissues was detected by immunohistochemistry(IHC).Results The polysaccharide content of PCHE reached(10.07±1.3)%,and the flavonoid content was(0.044±0.004)%,and thirty-nine components were detected by UPLC-Q-TOF/MS,which contained antitumor components such as flavonoids(baicalein,quercetin,luteolin and rutin),organic acids(ferulic acid)and polyphenols(gallic acid),etc.PCHE exhibited the inhibitory effects on Hela,A549,4T1,B16,MFC and HepG2 cells,among which the inhibitory effect on B16 cells was the most significant(P＜0.001),and PCHE induced cell cycle arrest at G0/G1 phase in B16 cells(P＜0.001).The results of double-staining flow cytometry and Western Blot showed that PCHE significantly promoted apoptosis of B16 cells,decreased the expression of Bcl-2,and promoted the expression of Bax(P＜0.01,P＜0.001).and PCHE constituents absorbed into blood also had an inhibitory effect on B16 cells(P＜0.001).In addition,the results of in vivo activity assay showed that different doses of PCHE could inhibit tumor growth,induce tumor cell necrosis,reduce Bcl-2 expression,and increase Bax expression compared with the model group.Conclusion The ingredients in PCHE are abundant.It contains a variety of antitumor active ingredients,which can inhibit tumor growth,induce tumor cell apoptosis,show strong anti-tumor effects and be worthy of in-depth study.

OBJECTIVE: To construct a multiple linear regression model of forced expiratory volume in 1 second (FEV1) for estimating FEV1 in special populations unable to receive or uncooperative in pulmonary ventilation function tests. METHODS: The multiple linear regression model of FEV1 was constructed based on the data of 813 individuals undergoing pulmonary function tests in First Affiliated Hospital of Zhejiang Chinese Medical University between September, 2017 and September, 2019, and was validated using the data of another 94 individuals from the same hospital between January and July, 2020. FEV1 of the individuals was measured by pulmonary ventilation function test, and respiratory resistance (Rrs) was measured using forced oscillation technique (FOT). Pearson correlation analysis was used to assess the correlation between the factors, and the model equation was established by multiple stepwise regression analysis. The calculated FEV1 based on the model was compared with the measured FEV1 among both the individuals included for modeling and validation. RESULTS: FEV1 was not significantly correlated with BMI ( CONCLUSIONS The multiple linear regression model for calculating FEV1 constructed in this study is suitable for clinical application.
Adult ; Forced Expiratory Volume ; Humans ; Linear Models ; Lung ; Respiratory Function Tests ; Sex Factors

Objective:To understand the epidemiological characteristics and spatiotemporal distribution of viral encephalitis in children and adolescents in Henan Province from 2012 to 2023.Methods:The information about viral encephalitis cases from October 1, 2012 to July 26, 2023 were collected from Zhengzhou Children's Hospital (National Children's Regional Medical Center),Henan Provincial Children's Hospital for the analyses on temporal distribution the cases, the severe illness rate, age distribution, pathogen type and imaging findings of the cases.Results:A total of 6 276 cases of viral encephalitis were included in this study after excluding cases with incomplete information. The cases mainly originated from Zhengzhou (38.96%), followed by Zhoukou (9.93%), Xuchang (8.68%), Zhumadian (7.90%) and Pingdingshan (7.39%). The cases in boys accounted for 62.13% and the cases in girls accounted for 37.87%. Most cases (72.45%) occurred in age group 7-13 years. The overall rate of severe illness cases was 4.51% from 2012 to 2023. There were significant differences in severe illness cases among different areas and years ( χ2=5.33, P=0.021; χ2=48.14, P<0.001). Enteroviruses were mainly detected (31.57%), in which Coxsackie virus was predominant (58.37%). Imaging findings showed that cerebral hemisphere damage was most common in children and adolescents with viral encephalitis (54.93%). Conclusions:From 2012 to 2023, more cases of viral encephalitis occurred in boys in Henan. Children and adolescents aged 7-13 years were the main affected group. The prevention of enteroviruses infection, especially Coxsackie virus, needs to be strengthened. Special attention should be paid to the prevention of cerebral hemisphere damage after viral encephalitis diagnosis.