Atopic dermatitis is a complex chronic, relapsing inflammatory skin disease.Atopic dermatitis in children is usually less severe than in adults, but it is with a high incidence and is susceptible to relapse.Therefore, the physical and mental health of children and their family maybe seriously affected.In the past, the treatments of atopic dermatitis have been limited to glucocorticoids and immunosuppressants.It is unsafe for children because of their toxicities.With the in-depth understanding of pathogenesis, more and more new therapies that focus on intervening in the inflammatory pathway by targeting specific cytokines or their receptors have been found and applied.This article reviews the progress of treatment of the disease to provide new insights for the optimal treatment of atopic dermatitis.

OBJECTIVE To investigate the distribution and drug resistance of pathogenic bacteria in septicemia in order to provide the reference for clinical antimicrobial agents usage.METHODS The blood samples of inpatients were cultured with blood culture apparatus,VITEK-AMS was used to identify the bacteria and conduct drug resistance test and ESBLs produced by Escherichia coli,and Klebsiella were detected by disc diffusion confirmatory test.RESULTS The 221 strains of pathogens that caused septicemia were mainly distributed in ICU,blood department and infection department.The 61 strains of E.coli were isolated,among which ESBLs were detected and accounted for 39.3%(24),26 strains of Klebsiella were isolated,among which ESBLs were detected and accounted for 26.9%(7),ESBLs strains were more resistant than ESBLs negative strains.Thirty two strains of Staphylococcus were isolated,among which MRS were detected and accounted for 62.5%(20).The pathogens showed highly multiple drug-resistance.Vancomycin and imipenem were the highest susceptible for Gram-positive and Gram-negative bacteria,respectively.CONCLUSIONS The pathogens that caused septicemia are mainly distributed in ICU,blood department and infection department.The situation of antibiotic resistance of pathogens is very serious now.Therefore,it is important to prevent the septicemia and to detect enzyme producing strains regularly for reference of reasonable antibiotic use.

OBJECTIVE To investigate the resistance of Acinetobacter baumannii(ABA),and the mechanism of imipenem resistance in A.baumannii.METHODS All specimens were identified by VITEK-60 and the drug resistance was detected by Kirby-Bauer test.Three dimensional test was used to detect ESBLs and AmpC.PCR and DNA sequencing were performed to determine VIM,IMP,OXA-23 and OXA-24 ?-lactamases.Outer membrane protein was analyzed by SDS-PAGE,Reserpine synergistic inhibition test was used to study the active efflux mechanism.RESULTS Totally 120 strains were isolated from sputum(76.9%),and 16 strains from secretion(10.3%).ICU was the main infected department(51 strains,32.7%).The resistance to sulperazone was the lowest(20.5%),and to imipenem accounted for 38.5%,Of the 20 imipenem resistant strains,10 strains were ESBLs positive(50%),and 20 strains were AmpC positive(100%).VIM,IMP and OXA-24 ?-lactamases were not detected out,19 strains(95%) produced OXA-23.Compared to the imipenem-sensitive strains,the resistant strains lacked the outer membrane protein of 22?103,29?103 and 33?103.The MICs of A.baumannii to imipenem were not decreased by reserpine which demonstrated that excretive mechanism was negative.CONCLUSIONS ICU is the main infected department for ABA.The resistance rate is increasing for longer-term usage of carbopenem;OXA-23 production is the important resistance mechanism in ABA,AmpC production and outer membrane protein lacking show close relation to the drug-resistance in A.baumannii.

OBJECTIVE To study the change and significance of TNF-? and IL-18 in the Acinetobacter baumannii sepsis. METHODS Sixty male SD rats were divided into 6 groups. The first group was normal control group. The second to sixth groups were sepsis groups which were killed at 4h,16h,24h,48h,72h after injecting A. baumannii through intraperitoneal injection to make sepsis model. The level of TNF-? and IL-18 in the serum of rats was measured by enzyme linked immunosorbent assay (ELISA). RESULTS The level of TNF-? in the serum increased markedly in the sepsis groups (P

By using a combination of various chromatographic techniques including column chromatography over silica gel and Pharmadex LH-20 and reversed-phase HPLC, two minor new compounds, labda-12, 14-dien-6beta, 7alpha, 8beta, 17-tetraol (1), 2, 3-cis-6-acetyl-5-hydroxy-2-(hydroxymethylvinyl)-2, 3-dihydrobenzofuran-3-ol angelate (2), and a minor new natural product 6-methoxy-4-methyl-3, 4-dihydro-2H-naphthalen-1-one (3) have been isolated from an ethanolic extract of Heteroplexis micocephala. Their structures were elucidated with spectroscopic data analysis including 2D NMR experiments.

Aim To examine the influence of tetramethylpyrazine on learning and memory function of hypoxic hypoxia rats, and the expression of gamma aminobutyric acid(GABA) receptor and forkhead box P2(FOXP2) in hippocampus of rats.Methods A total of 120 Sprague Dawley rats were randomly divided into low hypoxic hypoxia and high hypoxic hypoxia groups, then according to different time points every group was divided into 1 d, 3 d, 7 d 15 d, 30 d group, with 12 rats per each group.Experiment group and the control group were treated with tetramethylpyrazine and 0.9% normal saline, respectively.The hypoxic hypoxia environment was achieved by putting the rats in a hypobaric chamber at a simulated altitude of 5 500 meters for different days.The capabilities of learning and memory of rats were detected by Morris water maze test.The expression of GABA receptor and FOXP2 protein in hippocampus of rat was determined by Western blot.Results ① Morris water maze test showed that the total distance of rats in the simulated hypobaric hypoxia control group was longer than that in the tetramethylpyrazine group(P<0.01) and the number of crossing the bestride platform increased compared with that in the hypobaric hypoxia control group(P<0.01) from the third day;② Western blot results showed that the expression of GABAAα1 receptor have no statistical significance(P>0.05);however,GABAB1 receptor and FOXP2 protein rose from the third day(P<0.05).The expression of GABAAα1 receptor and FOXP2 protein expression were correlated to total distance of Morris water maze in the control group(r=-0.738, P<0.05;r=-0.693, P<0.05), and the expression of GABAB1 receptor was correlated with FOXP2 protein level(r=0.834, P<0.05).Conclusion The simulated high-altitude hypobaric hypoxia can decrease the learning and memory abilities of rats, which may be ameliorated by tetramethylpyrazine intervention, and this effect might be related to the increase of GABAB1R receptor and FOXP2 expression in hippocampus of rats.

Objective: To study the application of copy number variation (CNV) analysis based on the raw data of next-generation sequencing (NGS) in diagnosing primary immunodeficiency disease (PID). Methods: One hundred sixty-five patients with suspicious PID were tested by NGS in the Department of Rheumatology and Immunology, Shenzhen Children′s Hospital during September 2014 and Mary 2017. The raw data of the patients who got negative result were further analyzed for the CNV with CNVkit software. The pathogenic CNV were identified in the databases including Resource of Asian Primary Immunodeficiency Diseases (RAPID), Human Gene Mutation Database (HGMD) and ClinVar with the known 344 pathogenic genes of PID. The associated literature from January 2010 to May 2019 were searched in Pubmed, Weip, Wanfang and CNKI database with key words as "primary immunodeficiency disease" "copy number variation" and "next generation sequencing" . Results: Ninety-five out of 165 patients (57.6%) had negative result of the NGS test, among whom the patients with immune dysregulation had the highest negative rate (68.6%, 24/35). CNV analysis found large fragment deletion in 12 patients, within which 7 was X-linked inheritance, 3 was autosomal recessive inheritance, 2 was autosomal dominant inheritance. Partial exon deletion was found in 4 patients while whole gene deletion in 8 patients. According to the review of literature, CNV was reported in 51 pathogenic genes of PID (14.8%, 51/344) , mainly intern deletion (70.6%, 36/51), while autosomal recessive inheritance (56.9%, 29/51) was the most common pattern. Conclusions CNV is not rare in PID. When the phenotype is clear in the patients who have negative NGS test, CNV should be considered.

The study mainly describes the research progress of domestic identification of similar Chinese medicinal plants and the research progress of foreign identification of similar plants, placing emphasis on the principle, merits and defects of new technology and methods including plant biotechnology, spectral identification technology and computer vision technology. With the continuous update of science and technology, the accuracy of identification of similar Chinese herbal medicine plants has been improved, and the rapid progress of identification of Chinese herbal medicine plants has been promoted. The paper mainly elaborated the latest development of plant identification technology of similar Chinese herbal medicines in depth, so as to summarize the principle and characteristics of the new technology and forecast the future prospect.

Objective To observe the therapeutic effect of hoop circumference drug,Hongzhongxiao tincture,on the treatment of skin abscess in rats under the guidance of defended field theory.Methods Forty SpragueDawley (SD) rats were randomly divided into normal control group,model group,western medicine control group,Hongzhongxiao pretreatment group and Hongzhongxiao treatment group according to the computer generated random number.Subcutaneous abscesses models were reproduced by subcutaneous injection of 1 mL (3-5 × 109 cfu/mL) of staphylococcus aureus,and the normal control group was subcutaneously injected with the same amount of normal saline.After molding,the rats in the model group were treated with normal saline for change of dressing;the western medicine control group was treated with mupirocin ointment for external use;Hongzhongxiao pretreatment group was treated with 2 mL of Hongzhongxiao for dressing 4 hours after the modeling;in Hongzhongxiao treatment group,2 mL dressing was given after the emergence of hard swelling,and the Hongzhongxiao drug range applied was 1 cm over the swelling range.Each group was dressed once daily.The changes of mental state,body weight,skin temperature,range and time of abscess formation,wound ulceration and healing time,transcutaneous oxygen pressure (TcPO2) at the periphery of abscess were observed in each group.Results ① After modeling,the activity of the rats was decreased,the appetite became worse,and the food intake less.Except the normal control group,the rats in other groups had different degrees of mental listlessness.② After 3 days of treatment,the body weight gain of the model group was significantly lower than that of the normal control group (g:8.75 ± 9.85 vs.31.67 ± 7.92,P ＜ 0.01),and continued to 18 days after treatment (g:27.13± 11.70 vs.98.00 ± 8.94);after treatment for 18 days,the body weight gain in the western medicine control group,Hongzhongxiao pretreatment group and Hongzhongxiao treatment group was significantlyhigher than those of model group (g:53.28 ± 19.69,49.12 ± 7.23,44.71 ± 12.42 vs.27.13 ± 11.70,all P ＜ 0.05).③ After 3 days of treatment,the body temperature of the model group was obviously lower than that of the normal control group (℃:33.75 ± 0.68 vs.35.03 ± 0.41,P ＜ 0.01) and continued to 10 days (℃:34.30 ± 0.35 vs.35.03 ± 0.41,P ＜ 0.01).The body temperature of the rats in Hongzhongxiao pretreatment group was significantly lower than that in the normal control group,the model group and the western medicine control group on the 14th day after treatment (℃:33.97 ± 0.83 vs.35.10 ± 0.57,35.01 ± 0.68,35.25 ± 0.23,all P ＜ 0.05).The body temperature of Hongzhongxiao treatment group was significantly higher than that of the Hongzhongxiao pretreatment group (℃:34.87 ± 0.94 vs.33.97 ± 0.83,P ＜0.05).④ After treatment for 13,15,17 days,the contraction rates of swollen area in western medicine control group,hongzhongxiao pretreatment group and hongzhongxiao treatment group were greater than the rate in model group,and the change was most significant on the 17th day after treatment [(96.37 ± 5.09)％,(92.76 ± 13.56)％,(98.41 ± 3.85)％ vs.(77.46 ± 19.07)％,all P ＜ 0.05].⑤ Compared with the model group,the times of abscess localization in the western medicine control group,the Hongzhongxiao pretreatment group and the Hongzhongxiao treatment group was shorter than that in the model group (days:9.28 ± 1.38,7.33 ± 1.97,7.67 ± 1.63 vs.12.63 ± 1.99,all P ＜ 0.05);the time of wound healing in Hongzhongxiao pretreatment group aud Hongzhongxiao treatment group were significantly shorter than those of the model group (days:17.67 ± 1.03,16.83 ± 1.51 vs.19.92 ± 2.33,P ＜ 0.05).⑥ TcPO2 in the Hongzhongxiao pretreatment group was significantly higher than that in the model group on the 7th day after treatment [mmHg (1 mmHg =0.133 kPa):63.33 ± 9.77 vs.39.51 ± 8.42],and the Hongzhongxiao treatment group (44.25 ± 6.41) was significantly lower than that of the Hongzhongxiao pretreatment group,and the Hongzhongxiao treatment group was significantly higher than that of the model group (59.50 ± 7.34 vs.49.52 ± 10.17) on the 14th day after drug application,and the western medicine control group was significantly lower than that of the model group (37.71 ± 5.63 vs.54.33 ± 7.74),the Hongzhongxiao pretreatment group and Hongzhongxiao treatment group were significantly higher than those of the western medicine control group,the difference being statistically significant (all P ＜ 0.05).Conclusions The Hongzhongxiao tincture applied on top and circumferentially around the periphery of the abscess can reduce the local inflammatory response,improve the body weight and mental state,increase the blood supply around wound periphery for anti-infection and anti-inflammation in order to promote the formation of defending field of nursing.Although the early application of Hongzhongxiao tincture cannot reduce the local infectious symptoms and kill the Staphylococcus aureus,it can make skin abscess localization as soon as possible and shorten the wound healing time.

Atopic diseases used to be considered as complex polygenic diseases with the interaction of environmental factors and genetic susceptibility.In recent years, primary atopic diseases caused by single-gene mutations have been well concerned.This study aims to review the pathogenesis and clinical characteristics of atopic diseases, thus strengthening the understanding.