ObjectiveThis study observes the intervention effect of Longmu Piyan prescription on oxidative stress in BALB/c mice with atopic dermatitis （AD） induced by 2，4-dinitrochlorobenzene （DNCB） and explores its mechanism. MethodThe AD model was established using the method of DNCB sensitization on the back skin of BALB/c mice. Forty male BALB/c mice were randomly divided into a blank group， a model group， a vitamin C control group （0.5×10^-3 mg·kg^-1）， and a Longmu Piyan prescription group （26 g·kg^-1）. Except for the blank group， other groups were sensitized with different concentrations of DNCB on the back to induce AD， and the blank group was treated with matrix coating. The gastric administration was started on the seventh day after sensitization with 2% DNCB and on the 24th day after sensitization with 0.2% DNCB continuously for 21 days. The changes in skin lesions of each group were directly observed after the experiment. Enzyme-linked immunosorbent assay （ELISA） was used to detect the levels of interleukin （IL）-4， tumor necrosis factor （TNF）-α， immunoglobulin E （IgE）， and reactive oxygen species （ROS） in the serum of each group. The total antioxidant capacity determination kit-trace method (ABTS method) was used to measure the level of total antioxidant capacity （TAOC） in serum. The Hematoxylin eosin （HE） staining method was used to observe the pathological and morphological changes of the skin lesion site. The immunohistochemical method was used to detect the expression of thymic stromal lymphopoietin （TSLP） in the skin lesion site. Western blot was used to detect the expression of filaggrin （FLG） in the dorsal skin lesions. ResultThe results showed that compared with the blank group， the skin lesion score of the model group mice was significantly increased （P<0.01）， and HE staining showed characteristic pathological changes of AD in the skin lesion site. At the same time， the expression of TSLP in the skin lesion was significantly increased， and that of FLG was reduced （P<0.05）. The levels of TNF-α， IL-4， IgE， and ROS in serum increased， while the activity of TAOC decreased （P<0.01）. Compared with the model group， the Longmu Piyan prescription group showed a significant decrease in skin lesion scores and a significant improvement in skin lesion pathology. At the same time， the expression of TSLP decreased， and the expression of FLG increased in the skin lesions （P<0.05）. In addition， compared with the model group， the serum levels of TNF-α， IL-4， IgE， and ROS also decreased to varying degrees （P<0.05，P<0.01）， and TAOC activity increased in the Longmu Piyan prescription group （P<0.01）. ConclusionThere is a significant correlation among the degree of oxidative stress， the severity of skin lesions in AD， and the levels of inflammatory cytokines. Longmu Piyandu prescription can improve AD-like skin lesions in BALB/c mice by promoting ROS clearance， enhancing TAOC， and inhibiting oxidative stress， thus protecting the skin barrier and reducing inflammation.

Objective To explore the mediating effect of sleep duration on the relationship between qi stagnation constitution and anxiety/depression in junior high school students.Methods From March 20 to March 31,2020,a total of 10,325 students from 6 junior high schools in Henan,Liaoning,Shaanxi,Shandong,and Fujian provinces were sampled by cluster sampling.Firstly,the general conditions(age,gender,grade,hometown,whether they are an only child)and sleep duration were collected,and their qi stagnation constitution,depression and anxiety status were evaluated by using the Qi Stagnation Subscale in the"TCM Constitution Classification and Judgment Scale",the Patient Health Questionnaire(PHQ-9)and the Generalized Anxiety Disorder(GAD-7).Secondly,Spearman correlation analysis was used to explore the correlation between qi stagnation constitution,sleep duration,and anxiety/depression.Then,linear regression analysis and mediating effect test were used to explore the relationship between qi stagnation constitution and anxiety/depression in junior high school students,and the mediating effect of sleep duration was analyzed,and the results were verified.Results(ⅰ)The detection rate of anxiety in non-only children was higher than that of only children(x2=11.198,P=0.001);The detection rate of anxiety(x2=106.967,P＜0.001)or depression(x2=84.692,P＜0.001)was higher among senior students than those in lower grades,while those of girls with anxiety(x2=100.441,P＜0.001)or depression(x2=71.418,P＜0.001)were higher than those of boys.The detection rates of anxiety(x2=1 092.298,P＜0.001)and depression(x2=866.740,P＜0.001)in qi stagnation constitution students were higher than those of non-qi stagnation constitution students,and the detection rates of anxiety(x2=1 076.716,P＜0.001)and depression(x2=1 099.725,P＜0.001)in students whose sleep duration less than 8 h were higher than those of whose sleep duration more than 8 h,and the shorter the sleep duration,the higher the detection rate.(ⅱ)Qi stagnation constitution positively predicted anxiety/depression(β=0.679,P＜0.001;β=0.718,P＜0.001),and sleep duration had a negative predictive effect on anxiety/depression(β=-0.403,P＜0.001;β=-0.439,P＜0.001).(ⅲ)Sleep duration played a partial mediating role in the relationship between qi stagnation constitution and anxiety/depression in junior high school students,and the mediating effect accounted for 13.40％and 13.79％of the total effect,respectively.Conclusion Although qi stagnation constitution mainly affects anxiety/depression through direct effect,it can still be partially indirectly realized through the mediating variable of sleep duration,that is,the shorter the sleep duration,the higher the risk of anxiety/depression in junior high school students.Therefore,the mental health problems of junior high school students can be prevented and improved by regulating qi stagnation constitution and ensuring adequate sleep duration.

[Objective]To explore the pathogenesis and treatment of allergic dermatitis based on the theory of"Fuqi".[Methods]Consulting ancient Chinese medicine books and literature to discuss the theoretical connotation of"Fuqi".Combining the characteristics of allergic dermatitis with the theory of"Fuqi"to analyze the pathogenesis and treatment of allergic dermatitis,and prove it with one medical record.[Results]Allergic contact dermatitis belongs to the category of"lacquer sore"and"peach blossom ringworm"in traditional Chinese medicine.It often aggravates or develops in spring and autumn,and is easy to relapse."Fuqi"refers to a way to maintain the balance of Yin and Yang among the five elements in nature,and is also a mechanism for the human body to regulate the balance of the five elements.Inspired by the theory of"Fuqi",combined with the clinical characteristics of allergic contact dermatitis,the treatment method is discussed.It is considered that the core pathogenesis of the disease is"earth is not enough,wood is partial,and the metal is coming back".And it puts forward the treatment principle of"reinforcing earth and soothing liver,clearing themetal and moistening dryness".Based on this and a large number of clinical practices,the Zhifu Runzao Xiaohong Decoction has achieved good results.In this paper,the medical record was identified as spleen deficiency and liver hyperactivity syndrome.The treatment was to reinforce earth and soothe liver,clear themetal and moister dryness,and the prescription was Zhifu Runzao Xiaohong Decoction.With the addition and subtraction of the syndrome,the effect was remarkable.[Conclusion]The essence of treating allergic dermatitis based on the theory of"Fuqi"is to regulate the balance among the five elements.The clinical application of Zhifu Runzao Xiaohong Decoction is effective and can prevent its recurrence.Treating allergic dermatitis based on the theory of"Fuqi"provides a new idea for the differentiation and treatment of allergic dermatitis.

Objective: To identify the functional connectivity characteristics of insula, sensory and social related brain regions in boys with autism spectrum disorder(ASD), to explore the central nervous basis of sensory abnormality affecting core symptoms in boys with ASD. Methods: Resting state functional magnetic resonance imaging (rs fMRI) data were collected from 34 boys with ASD and 29 typical development boys (TD group). Based on functional connectivity analysis, the sensory related brain regions, insula, and social related brain regions were taken as regions of interest to calculate the functional connectivity (FC) level between the regions of interest, the differences between the two groups were compared and the results were corrected by FDR. The Autism Diagnostic Observation Schedule (ADOS), Childhood Autism Rating Scale (CARS) and Autism Spectrum Quotient-Children s Version (AQ-Child) were used to assess the core phenotypes of boys with ASD. Results: Compared with the TD group, the levels of FC between tactile brain regions and insula, olfactory brain regions and insula, auditory brain regions and insula in boys with ASD group were significantly increased. The level of FC between the insula and bilateral amygdala，insula and the medial prefrontal cortex(mPFC) were significantly increased( P <0.05).Pearson correlation analysis showed that the level of FC between auditory brain region(BA42)and left insula in ASD group was negatively correlated with the scores of communication subscale of ADOS( r =-0.44)，social interaction subscale of ADOS( r =-0.43), communication & social interaction subscale of ADOS( r =-0.49),attention to details subscale of AQ-Child( r =-0.41). The level of FC between the right insula and right amygdala was positively correlated with the attention switch subscale of AQ-Child( r =0.38), the level of FC between right insula and mPFC was positively correlated with the scores of repetitive behavior subscale of ADOS( r =0.48), the attention switch subscale of AQ-Child( r =0.49), total scale subscale of AQ-Child( r =0.41), total scale of CARS( r =0.41)( P < 0.05 ). Conclusion The levels of FC between insula and sensory related, social related brain regions are abnormal in children with ASD, which have significant correlations with clinical symptoms. In depth studies can be conducted to explore underlying neutral mechanisms.

Objective: To explore the differences of sensory manifestations between ASD children and typical development children, and to clarify the characteristics of sensory abnormalities in ASD and their relationship with various clinical symptoms, so as to provide scientific basis for early identification and specific intervention. Methods: A total of 265 ASD children who received rehabilitation training in autism rehabilitation institutions in Heilongjiang Province were collected as the case group, and 223 typical development children in ordinary kindergartens and schools in Harbin were taken as the control group. Short Sensory Profile (SSP) was used to evaluate the difference of children s sensory perception level between the two groups, and Social Response Scale (SRS) and Autism Behavior Checklist (ABC) were used to evaluate the severity of symptoms including social disorder of autistic children. The correlation between SSP scores in ASD group and clinical scales was analyzed. Results: The comparison of SSP scores between the two groups found that the median scores of all sensory dimensions in ASD group (tactile=33, taste/smell=18, motion sensitivity=13, Low response/sensation seeking=28, auditory filtering=19, low strength=22, visual/auditory=20) were lower than those of the healthy control group( Z =-2.73,-4.36,-3.17,-5.09,-11.00,-10.45,-3.43, P <0.05). The abnormal rate of multisensory score in children in ASD group was 55.1%, and that in control group was 21.2%, with significant difference( χ 2=57.15, P <0.05). Correlation analysis showed that SSP score in ASD group was negatively correlated with all dimensions of SRS, nonverbal communication, and social function of ADI-R scale, ADOS communication and social interaction, and total scores of ABC and CARS( P < 0.05 ). Conclusion Children with ASD have atypical sensory experiences, especially in auditory filtering dimension, and the level of atypical sensation is related to the severity of clinical symptoms of autism. In the future clinical diagnosis, treatment and research, it is necessary to strengthen the ability to recognize the sensory symptoms of children with ASD, so as to realize the early diagnosis and intervention.

ObjectiveTo evaluate the efficacy and safety of An'erning granules in the treatment of community-acquired pneumonia in children. MethodA randomized， double-blind， single-simulation， placebo-controlled trial was designed in this study. The children were randomly assigned into an observation group （An'erning granules combined with ceftriaxone sodium） and a control group （An'erning granules placebo combined with ceftriaxone sodium） according to the ratio of 2∶1. The disease cure rate was taken as the main indicator of efficacy， and the safety of An'erning granules was observed. ResultA total of 206 children （137 in the observation group and 69 in the control group） were included in this study. Before treatment， the age， sex， body height， body weight， diagnosis time of pneumonia， and symptom and sign scores had no significant differences between the two groups. After 8 days of continuous medication， the observation group［70.80%（97/137）］ had higher cure rate than the control group［56.52%（39/69）］（χ²=4.17，P<0.05） and total effective rate of chest X-ray ［97.98%（97/99）］ than the control group［86.27%（44/51）］ （χ²=12.98，P<0.01）. The observation group was superior to the control group in the alleviation of TCM syndrome under the condition of 0-3 g dose stratification on day 3 of medication （P<0.01）. The recovery time， time to complete fever abatement， time to fever abatement and expectoration alleviation， rate of conversion to severe case， and reduction in the frequency of antibiotic use showed no significant differences between the two groups. In terms of safety， 13 and 7 adverse events occurred in the observation group and control group， respectively， which were relieved or disappeared after drug withdrawal or symptomatic treatment and showed no significant difference between the two groups. ConclusionIntravenous drip of ceftriaxone sodium combined with An'erning granules is effective in the treatment of community-acquired pneumonia in children. It can accelerate the absorption of pulmonary inflammation， alleviate the clinical symptoms in a short time for young children or the children with mild symptoms， and is safe in clinical application.

Objective: To explore the functional connectivity between the visual brain regions and whole brain in children with autism spectrum disorder (ASD) at resting state, and to further analyze the correlation with their clinical manifestations. Methods: The functional magnetic resonance imaging (fMRI) data of 34 boys with ASD enrolled from ASD designated rehabilitation institutions and 29 healthy boys enrolled from several kindergartens in Heilongjiang were collected. Based on the resting-state functional connectivity magnetic resonance imaging (rs-fc MRI) analysis, the BA17 of the primary visual brain region and the BA18/19 of the higher visual brain region were taken as the regions of interest (ROI) to calculate the functional connectivity level between the visual brain regions and whole brain, and the differences between the two groups were compared. Multiple developmental scales were used to evaluate the behavior of ASD children, and Pearson correlation analysis was used to explore the relationship between functional connection strength and autistic behavior. Results: The ASD group had decreased positive connectivity between BA17 and the right fusiform gyrus (FFG), and was negatively correlated with social interaction of ADI-R and the total scores of CARS (r=-0.41, -0.48, P<0.05); ASD group had decreased positive connectivity between BA17 and the left FFG, there was a negative correlation with social motivation of SRS (r=-0.43, P<0.05); ASD group had decreased positive connectivity between BA17 and the left posterior cingulate gyrus (PCG). Children with ASD had decreased positive connectivity between BA18/19 and left calcarine fissure and surrounding cortex (CAL), which was positively correlated with attention conversion of AQ, total scores of CARS (r=0.43, 0.40, P<0.05), and the children with ASD had deceased positive connectivity between BA18/19 and right precuneus (PCUN). Conclusion In resting state, the functional connectivity of primary and higher visual brain regions and whole brain of ASD children is different from that in healthy children, and there is a significant correlation between abnormal level and autistic behaviors.

Objective: To explore whether children in autism spectrum disorders (ASD) have more obvious tactile abnormalities than healthy children, and to analyze the correlation between tactile abnormalities and clinical symptoms of autism, so as to provide a scientific basis for intervening and treating tactile abnormalities among the children with autism. Methods: Totally 265 ASD children aged 3.02-10.66 years who received rehabilitation training in designated rehabilitation institutions for autism in Heilongjiang Province were collected as case group, and 223 healthy children aged 3.15-10.99 years were recruited as control group in Harbin kindergartens and primary schools according to the principle of gender and age matching. The Short Sensory Profile (SSP) was used to evaluate children s tactile behavior, and the differences between the two groups, as well as the scores of different genders and ages were analyzed. At the same time, Social Responsiveness Scale (SRS) was used to evaluate the clinical manifestations of ASD children. Spearman correlation analysis was used to explore the correlation between tactile behavior and autism symptoms. Results: The tactile score of SSP in ASD group [33(33,35)] was lower than that in control group[34(31,35)], and the difference was statistically significant(Z=-2.73, P<0.05); And the proportion of tactile abnormality grade (possible abnormality and obvious abnormality) in ASD group (19.6%) was higher than that in control group(11.7%)(χ 2=5.72, P<0.05). At the same time, the tactile sensation between the two groups of boys was significantly different(Z=-2.17, P<0.05). There was a negative correlation between SSP tactile scores in ASD group and clinical scale scores including SRS social cognition, social communication and scale scores, Autism Behavior Checklist(ABC), Childhood Autism Behavior Scale(CARS), non-verbal communication of Autism Diagnostic Interview-Revised(ADI-R)(r=-0.23, -0.28, -0.28, -0.35, -0.17, -0.27, P<0.05). Conclusion Autistic children show more obvious tactile abnormalities than healthy children, which is more significant in boys. And there is a correlation between tactile abnormalities and clinical manifestations such as autism social disorder.

The construction of teaching faculty is not only a core element to carry out medical education in municipal general hospitals, but also a weak link. Constructing a performance evaluation system of teaching faculty has important significance in promoting teaching reform and innovation, and improving teachers' enthusiasm for teaching as well as their teaching quality in municipal general hospitals. Taking the Affiliated Dongguan People's Hospital of Southern Medical University as an example, this paper focused on the construction of teaching faculty and aimed to provide references for municipal general hospitals to build a performance evaluation system through the promotion of a series of measures such as teaching ability assessment, quantitative assessment of teaching work, teaching quality evaluation, and teaching contribution assessment.

Objective: To evaluate whether human NK cells expanded in vitro can be used as carrier cells of reovirus and to investigate its clinical application value. Methods: Expansion of human NK cells in vitro, and flow cytometry was used to analyse the purity of CD3-CD56+ cells. Expanded NK cells were loaded with reovirus and observed by confocal microscopy, to determining the location of reovirus on NK cells. CCK-8 assay was used to detect reovirus-induced oncolysis of expanded NK cells carrying reovirus (Reo-NK) to tumor cells in the presence of neutralizing antibodies; Real-time fluorescence quantitative PCR was used to assess the relative expression of viral RNA in tumor cells. Cytotoxicity assay were performed to detect Reo-NK cells against KRAS mutant (DLD-1) and KRAS wild type (CaCo-2, HT29) colorectal cancer cell lines, ELISA matched paired antibodies assay was performed to measure the perforin level released by NK cells. Results: Confocal microscopy demonstrated that NK cells retained reovirus on the surface. Expanded NK cells could delivery reovirus to tumor cells in the presence of neutralizing antibodies, and the reovirus after delivery still had significant oncolytic activity (P<0.01); Corresponding qPCR result displayed that the expression of viral RNA in tumor cells significantly increased over time (P<0.01). Compared with NK group, Reo-NK group evidently enhanced the cytotoxicity on colorectal cancer cell lines with both KRAS gene mutant and wild (all P<0.05), and significantly increased the release of perforin (all P<0.05). Conclusion: In vitro expanded NK cells provide a convincing cell carrier for reovirus, while reovirus enhances the cytotoxicity of NK cells, and the combination of the two show a stronger killing effect on colorectal cancer cells，that has important clinical application value.