Objective:To investigate the inhibitory effect of Xiaojianzhong Granule(XJZG)on food allergy(FA)and related mecha-nisms in terms of gut microbiota,zonula occluden-1(ZO-1),and Occludin.Methods:A total of 24 specific pathogen-free female BALB/c mice were randomly divided into normal group,model group,prevention group,and treatment group,with 6 mice in each group.The mice in the prevention group were given XJZG by gavage at a standard dose of 5.85 g/kg/day from 3 days before the first challenge till 4 hours before the last challenge;the mice in the treatment group were given XJZG at the double dose for 3 days based on the allergy score;the mice in the other groups were given an equal volume of distilled water by gavage.At the end of the experiment,al-lergy score and anal temperature were measured;flow cytometry was used to measure eosinophils and mast cells in mesenteric lymph nodes(MLNs);toluidine blue staining was performed for mast cells in jejunal tissue;immunohistochemistry was used to measure the expression of ZO-1 and Occludin;16S rRNA sequencing was per-formed to analyze the microbiota in the intestinal content;high-performance liquid chromatography-mass spectrometry was used to measure the content of short-chain fatty acids(SCFAs)in jejunal lavage fluid.Results:Compared with the model group,the prevention group and the treatment group had significant reductions in al-lergy score(P=0.000,P=0.000),anal temperature(P=0.002,P=0.000),the proportion of eosinophils and mast cells in MLNs(P<0.05),and mast cell infiltration in jejunal tissue(P=0.000,P=0.000).Compared with the normal group,the model group had signifi-cant increases in the relative abundances of Erysipelaceae and Turicibacter,while the prevention group and the treatment group had disappearance of Erysipelaceae and Turicibacter and an increase in the relative abundance of Porphyromonadaceae.Compared with the normal group,the model group had a significant reduction in the content of propionate in jejunal lavage fluid(P=0.014),and compared with the model group,the prevention group had a significant increase in the content of propionate in jejunal lavage fluid(P=0.024),as well as a significant increase in the treatment group(P=0.008).In the model group,the expression of ZO-1 was downregulated(P=0.010),and the expression of Occludin was significantly downregulated(P=0.002),while the expression of ZO-1 and Occludin re-turned to normal levels in the prevention group and the treatment group(P=0.001,P=0.013;P=0.025,P=0.015).Conclusion:XJZG can change the composition and abundance of gut microbiota,increase the concentration of SCFAs,upregulate the expression of ZO-1 and Occludin,promote the repair of intestinal barrier,and inhibit food allergy.

Transdermal preparations can effectively avoid the first-pass effect and have good clinical medication compliance.Transfersomes(TF),as a novel deformable lipid vesicle with good skin penetration efficiency and encapsulation rate,exert their efficacy by maintaining stable plasma concentration in vivo.They are novel transdermal absorption preparations with great development prospects.This article summarized the current research on TF,including the preparation technology,evaluation indexes,and clinical application,and prospected its research prospects.

Background::While type 2 diabetes mellitus (T2DM) is considered a putative causal risk factor for coronary artery disease (CAD), the intrinsic link underlying T2DM and CAD is not fully understood. We aimed to highlight the importance of integrated care targeting both diseases by investigating the phenotypic and genetic relationships between T2DM and CAD.Methods::We evaluated phenotypic associations using data from the United Kingdom Biobank ( N = 472,050). We investigated genetic relationships by leveraging genomic data conducted in European ancestry for T2DM, with and without adjustment for body mass index (BMI) (T2DM: Ncase/ Ncontrol = 74,124/824,006; T2DM adjusted for BMI [T2DM adjBMI]: Ncase/ Ncontrol = 50,409/523,897) and for CAD ( Ncase/ Ncontrol = 181,522/984,168). We performed additional analyses using genomic data conducted in multiancestry individuals for T2DM ( Ncase/ Ncontrol = 180,834/1,159,055). Results::Observational analysis suggested a bidirectional relationship between T2DM and CAD (T2DM→CAD: hazard ratio [HR] = 2.12, 95% confidence interval [CI]: 2.01–2.24; CAD→T2DM: HR = 1.72, 95% CI: 1.63–1.81). A positive overall genetic correlation between T2DM and CAD was observed ( rg = 0.39, P = 1.43 × 10 -75), which was largely independent of BMI (T2DM adjBMI–CAD: rg = 0.31, P = 1.20 × 10 –36). This was corroborated by six local signals, among which 9p21.3 showed the strongest genetic correlation. Cross-trait meta-analysis replicated 101 previously reported loci and discovered six novel pleiotropic loci. Mendelian randomization analysis supported a bidirectional causal relationship (T2DM→CAD: odds ratio [OR] = 1.13, 95% CI: 1.11-1.16; CAD→T2DM: OR = 1.12, 95% CI: 1.07-1.18), which was confirmed in multiancestry individuals (T2DM→CAD: OR = 1.13, 95% CI: 1.10-1.16; CAD→T2DM: OR = 1.08, 95% CI: 1.04-1.13). This bidirectional relationship was significantly mediated by systolic blood pressure and intake of 3-hydroxy-3-methylglutaryl coenzyme A reductase inhibitors, with mediation proportions of 54.1% (95% CI: 24.9-83.4%) and 90.4% (95% CI: 29.3-151.5%), respectively. Conclusion::Our observational and genetic analyses demonstrated an intrinsic bidirectional relationship between T2DM and CAD and clarified the biological mechanisms underlying this relationship.

Objective To study the accuracy and safety of oral mucosal exfoliated cell specimens used in the bedside rapid detection of MTHFR C677T genotype by using the fluorescent probe method.Methods The outpatients and inpatients with hypertension visited and admitted in the department of cardiovascular medicine of this hospital from January 2019 to September 2020 were selected.The plasma homocysteine (Hcy) level in all patients was detected in the laboratory,a total of 482 hypertensive patients with Hcy≥10 μmol/L were se-lected,and the oral mucosal cells and whole blood sample were collected in all patients,and the genotypes of the above specimens were detected by the oral mucosal exfoliative cell fluorescent probe method and whole blood sample contrast reagents.If the two test results were inconsistent,the "gold standard" Sanger sequen-cing method was used to detect the whole blood sample for the final determination of MTHFR C677T geno-type.The coincidence rate was compared between the two detection methods,and the probability of adverse e-vents during the samples collection was observed and recorded.The accuracy and safety of fluorescence probe method for detecting MTHFR C677T genotype in the patients with oral mucosa exfoliation was evaluated.Re-sults The oral mucosal exfoliated cell samples and whole blood samples from 482 hypertensive patients were successfully collected,and no obvious adverse reactions occurred during the sampling process.The incidence rate of total mutation of MTHFR C677T gene detected by the fluorescence probe method and contrast reagent all were 73.23％ (353/482),the coincidence rate of homozygous wild type (CC type) in MTHFR C677T gene detected by the two methods was 100.00％ (95％CI:97.11-100.00),which of heterozygous mutant type (CT type) was 99.14％ (95％CI:96.91-99.76),which of homozygous mutant type (TT type) was 99.17％(95％CI:95.47-99.85),the total coincident rate of MTHFR C677T genotype was 99.38％ (95％CI:98.19-99.79)and the detection results consistency Kappa value was 0.9902.Conclusion The detection of MTHFR C677T gene mutation in oral mucosal exfoliated cells by fluorescent probe method is simple with less invasion,moreover which is rapid,safe and accurate.

Polyethylene terephthalate (PET) is one of the most widely used synthetic polyester. It poses serious threat to terrestrial, aquatic ecosystems and human health since it is difficult to be broken down and deposited in the environment. The biodegradation based on enzymatic catalysis offers a sustainable method for recycling PET. A number of PET hydrolases have been discovered in the last 20 years, and protein engineering has increased their degradation capabilities. However, no PET hydrolases that are practical for widespread industrial use have been identified. Screening of PET hydrolase using conventional detection techniques is laborious and inefficient process. Effective detection techniques are required to promote the commercialization of PET hydrolases. Using efficient detection techniques to screen potent industrial enzymes is essential for supporting the widespread industrial implementation of PET hydrolases. To define PET hydrolase, scientists have created a number of analytical techniques recently. The detection techniques that can be used to screen PET hydrolase, including high performance liquid chromatography, ultraviolet absorption spectrometric, and fluorescence activated droplet sorting method, are summarized in this study along with their potential applications.
Humans ; Polyethylene Terephthalates ; Ecosystem ; Biodegradation, Environmental ; Catalysis ; Hydrolases

Many efforts have been made to understand excitotoxicity and develop neuroprotectants for the therapy of ischemic stroke. The narrow treatment time window is still to be solved. Given that the ischemic core expanded over days, treatment with an extended time window is anticipated. Bestrophin 1 (BEST1) belongs to a bestrophin family of calcium-activated chloride channels. We revealed an increase in neuronal BEST1 expression and function within the peri-infarct from 8 to 48 h after ischemic stroke in mice. Interfering the protein expression or inhibiting the channel function of BEST1 by genetic manipulation displayed neuroprotective effects and improved motor functional deficits. Using electrophysiological recordings, we demonstrated that extrasynaptic glutamate release through BEST1 channel resulted in delayed excitotoxicity. Finally, we confirmed the therapeutic efficacy of pharmacological inhibition of BEST1 during 6-72 h post-ischemia in rodents. This delayed treatment prevented the expansion of infarct volume and the exacerbation of neurological functions. Our study identifies the glutamate-releasing BEST1 channel as a potential therapeutic target against ischemic stroke with a wide time window.

Preoperative neoadjuvant therapy has become a hot topic in the treatment of locally advanced esophageal cancer (EC) in recent years. Accumulated evidences have demonstrated that neoadjuvant therapy combined with surgery could significantly improve the survival of patients with locally advanced EC compared with the surgery alone. The importance of neoadjuvant chemotherapy (nCT) and neoadjuvant chemoradiotherapy (nCRT) has been widely recognized and included in the guidelines. For locally advanced EC, especially for esophageal adenocarcinoma, both nCT and nCRT can significantly prolong the survival of patients than the surgery alone. Currently, whether the supplement of radiotherapy can bring more benefits to patients compared with nCT alone remains a hot topic. Besides, it is generally believed that the operation should be performed at 2-8 weeks after neoadjuvant therapy, whereas the optimal time interval remains debated. In this article, the research progress and existing problems in the preoperative neoadjuvant treatment of locally advanced EC were summarized.

Objective To evaluate the efficacy and safety of fosfomycin-trometamol (FMT)in the treatment of acute uncomplicated lower urinary tract infection (LUTI). Methods The medical records of acute uncomplicated LUTI patients,who had acute uncomplicated LUTI and received FMT or levofloxacin (LEV)in Qingdao Municipal Hospital from January 2015 to October 2017,were collected and analyzed retrospectively. Comparisons were made between the FMT group and the LEV group to investigate the patients＇clinical efficacy,bacteriological efficacy,bacteria isolated from urine cultures,the susceptibility of isolated strains to drugs and the occurrence of adverse reactions. Results Seventy patients entered the FMT group,including 31 males and 39 females,aged from 29 to 68 years with an average age of (51 ± 10) years.56 patients entered the LEV group,including 26 males and 30 females,aged from 31 to 66 years with an average age of (52 ± 10)years.The treatment periods of patients in the two groups were 3 to 7 days. Routine blood tests and liver and renal function tests were normal before the treatment. After the treatments, 59 patients were cured,5 patients improved,and the clinical efficacy was 91.4% (64/70)in the FMT group;while 28 patients were cured,4 patients improved,and the clinical efficacy was 57.1% (32/56)in the LEV group. And the difference was statistically significant (χ2＝20.16,P＜0.001). Positive bacteria were found in urine culture of 46 patients in the FMT group,including 35 strains of Escherichia coli[17 of which were extended-spectrum β-lactamases (ESBL)-producing Escherichia coli ],3 strains of Bacillus proteus [1 of which was ESBL-producing Bacillus proteus],3 strains of Enterococous faecalis,3 strains of Staphylococcus aureus,and 2 strains of Staphylococcus epidermidis. Positive bacteria were found in urine culture of 37 patients in the LEV group,including 29 strains of Escherichia coli (14 of which were ESBL-producing Escherichia coli),3 strains of Bacillus proteus (1 of which was ESBL-producing Bacillus proteus), 2 strains of Enterococous faecalis,1 strain of Staphylococcus aureus,and 2 strains of Staphylococcus epidermidis. Bacteriological efficacy were 91.3% and 56.8% ,for the FMT group and the LEV group, respectively and the difference was statistically significant (χ2＝13.38,P ＜0.001). Thirteen of the 17 ESBL-producing Escherichia coli strains isolated from patients in the FMT group were susceptible to FMT (susceptibility rate:76.5% ). Five of the 14 ESBL-producing Escherichia coli strains isolated from patients in the LEV group were susceptible to LEV (susceptibility rate:35.7% ). And the difference was statistically significant (P＝0.033). The difference of the incidence of adverse reactions was not statistically significant between the FMT group and the LEV group [11.4% (8/70)vs 16.1% (9/56),χ2＝0.575,P＝0.448]. Conclusion FMT was more effective and safer than LEV in the treatment of patients with acute uncomplicated LUTI.

Objective To evaluate the efficacy and safety of fosfomycin-trometamol (FMT)in the treatment of acute uncomplicated lower urinary tract infection (LUTI). Methods The medical records of acute uncomplicated LUTI patients,who had acute uncomplicated LUTI and received FMT or levofloxacin (LEV)in Qingdao Municipal Hospital from January 2015 to October 2017,were collected and analyzed retrospectively. Comparisons were made between the FMT group and the LEV group to investigate the patients＇clinical efficacy,bacteriological efficacy,bacteria isolated from urine cultures,the susceptibility of isolated strains to drugs and the occurrence of adverse reactions. Results Seventy patients entered the FMT group,including 31 males and 39 females,aged from 29 to 68 years with an average age of (51 ± 10) years.56 patients entered the LEV group,including 26 males and 30 females,aged from 31 to 66 years with an average age of (52 ± 10)years.The treatment periods of patients in the two groups were 3 to 7 days. Routine blood tests and liver and renal function tests were normal before the treatment. After the treatments, 59 patients were cured,5 patients improved,and the clinical efficacy was 91.4% (64/70)in the FMT group;while 28 patients were cured,4 patients improved,and the clinical efficacy was 57.1% (32/56)in the LEV group. And the difference was statistically significant (χ2＝20.16,P＜0.001). Positive bacteria were found in urine culture of 46 patients in the FMT group,including 35 strains of Escherichia coli[17 of which were extended-spectrum β-lactamases (ESBL)-producing Escherichia coli ],3 strains of Bacillus proteus [1 of which was ESBL-producing Bacillus proteus],3 strains of Enterococous faecalis,3 strains of Staphylococcus aureus,and 2 strains of Staphylococcus epidermidis. Positive bacteria were found in urine culture of 37 patients in the LEV group,including 29 strains of Escherichia coli (14 of which were ESBL-producing Escherichia coli),3 strains of Bacillus proteus (1 of which was ESBL-producing Bacillus proteus), 2 strains of Enterococous faecalis,1 strain of Staphylococcus aureus,and 2 strains of Staphylococcus epidermidis. Bacteriological efficacy were 91.3% and 56.8% ,for the FMT group and the LEV group, respectively and the difference was statistically significant (χ2＝13.38,P ＜0.001). Thirteen of the 17 ESBL-producing Escherichia coli strains isolated from patients in the FMT group were susceptible to FMT (susceptibility rate:76.5% ). Five of the 14 ESBL-producing Escherichia coli strains isolated from patients in the LEV group were susceptible to LEV (susceptibility rate:35.7% ). And the difference was statistically significant (P＝0.033). The difference of the incidence of adverse reactions was not statistically significant between the FMT group and the LEV group [11.4% (8/70)vs 16.1% (9/56),χ2＝0.575,P＝0.448]. Conclusion FMT was more effective and safer than LEV in the treatment of patients with acute uncomplicated LUTI.

Objective To compare the operative results of removing large olfactory groove meningiomas(diameter≥3 cm)using either a unilat?eral or bilateral subfrontal approach ,and to determine whether there is an advantage in the unilateral approach. Methods Sixty?nine cases of large olfactory groove meningioma,treated in our department,by either a unilateral or bilateral subfrontal approach microsurgery were retrospec?tively reviewed. Removal grading,post?operative complications,and other clinical indices were evaluated. Results Total resection(Simpson Ⅰ or Ⅱ)was achieved in all the cases. There were lesser complications with use of the unilateral subfrontal approach. Conclusion Patients with ol?factory groove meningioma have a good prognosis when a unilateral subfrontal approach is used for surgery.