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        Bacillus daqingensis sp. nov., a Halophilic, Alkaliphilic Bacterium Isolated from Saline-Sodic Soil in Daqing, China

        ShuangWang,Lei Sun,DanWei,Baoku Zhou,Junzheng Zhang,XuejiaGu,Lei Zhang,Ying Liu,Yidan Li,Wei Guo,Shuang Jiang,Yaqing Pan,Yufeng Wang 한국미생물학회 2014 The journal of microbiology Vol.52 No.7

        An alkaliphilic, moderately halophilic, bacterium, designated strain X10-1T, was isolated from saline-alkaline soil in Daqing, Heilongjiang Province, China. Strain X10-1T was determined to be a Gram-positive aerobe with rod-shaped cells. The isolate was catalase-positive, oxidase-negative, non-motile, and capable of growth at salinities of 0–16% (w/v) NaCl (optimum, 3%). The pH range for growth was 7.5–11.0 (optimum, pH 10.0). The genomic DNA G+C content was 47.7 mol%. Its major isoprenoid quinone was MK-7 and its cellular fatty acid profile mainly consisted of anteiso-C15:0, anteiso-C17:0, iso-C15:0, C16:0, and iso-C16:0. The peptidoglycan contained meso-diaminopimelic acid as the diagnostic diamino acid. The predominant polar lipids were diphosphatidylglycerol, phosphatidylethanolamine, and phosphatidylglycerol. Phylogenetic analysis based on 16S rRNA gene sequences showed that X10-1T is a member of the genus Bacillus, being most closely related to B. saliphilus DSM15402T (97.8% similarity) and B. agaradhaerens DSM 8721T (96.2%). DNA-DNA relatedness to the type strains of these species was less than 40%. On the basis of the phylogenetic, physiological, and biochemical data, strain X10-1T represents a novel species of the genus Bacillus, for which the name Bacillus daqingensis sp. nov. is proposed. The type strain is X10-1T (=NBRC 109404T =CGMCC 1.12295T).

      • KCI등재

        Identification of Medium-Length Antineurofilament Autoantibodies in Patients with Anti-N-Methyl-D-Aspartate Receptor Encephalitis

        Shisi Wang,Cancan Xu,Xiaobo Sun,Yifan Zhou,Yaqing Shu,Shangzhou Xia,Zhengqi Lu,Wei Qiu,Xiaofen Zhong,Lisheng Peng 대한신경과학회 2020 Journal of Clinical Neurology Vol.16 No.3

        Background and Purpose Anti-N-methyl-D-aspartate receptor (NMDAR) encephalitis is a severe central nervous system disorder mediated by NMDAR antibodies that damages neurons. We investigated the correlation between cytoskeletal autoantibodies and the clinical severity in patients with anti-NMDAR encephalitis. Methods Non-NMDAR autoantibodies were identified by screening matched cerebrospinal fluid (CSF) and the serum samples of 45 consecutive patients with anti-NMDAR encephalitis and 60 healthy individuals against N-methyl-D-aspartate receptor 1-transfected and nontransfected human embryonic kidney 293T cells. Immunocytochemistry was performed to assess antibody binding in rat brain sections and primary cortical neurons. Cell-based assays and Western blotting were applied to identify autoantibodies targeting medium neurofilaments (NFMs). We compared clinical characteristics between patients with NMDAR encephalitis who were positive and negative for anti-NFM-autoantibodies. Results Anti-NFM autoantibodies were detected in both the serum and CSF in one patient (2%) and in the serum only in six patients (13%). No antibodies were detected in the serum of healthy controls (7/45 vs. 0/60, p=0.0016). Four of the seven patients with anti-NFM autoantibodies in serum were children (57%), and three (43%) had abnormalities in brain magnetic resonance imaging. These patients responded well to immunotherapy, and either no significant or only mild disability was observed at the last follow-up. Anti-NMDAR encephalitis did not differ with the presence of anti-NFM autoantibodies. Conclusions Anti-NFM autoantibodies may be present in patients with anti-NMDAR encephalitis, indicating underlying neuronal damage. A large cohort study is warranted to investigate the clinical differences between patients with NMDAR encephalitis according to their anti- NFM antibody status.

      • KCI등재

        Clinical Application Value of Lactobacillus Plantarum PS128 in Patients with Anxiety Disorders

        Xiaojuan Meng,Yajie Gao,Hang Qi,Yongyan Ding,Yaqing Sun 대한정신약물학회 2022 CLINICAL PSYCHOPHARMACOLOGY AND NEUROSCIENCE Vol.20 No.3

        Objective: PS128 is a novel psycho biotic strain, it has been reported to play an important role in neuropsychiatric disorders. This study investigated the clinical effect of PS128 supplementation on patients with anxiety. Methods: A total of 200 patients with anxiety were recruited, and divided into two groups (n = 100/group). The control group received oral treatment with citalopram, and the PS128 group received PS128 capsules based on citalopram treatment. Hamilton Anxiety Scale (HAMA) and Self-Rating Anxiety Scale (SAS) were used to evaluate the anxiety levels. After 2 months of continuous administration, clinical efficacy was evaluated according to HAMA score. Results: There was no significant difference in HAMA and SAS scores between the two groups before treatment. With the treatment prolonged, the HAMA and SAS score decreased gradually in both control and PS128 groups, and the decrease rate of PS128 group was significantly greater than that of the control group. The clinical effective rates of PS128 group were higher than those in the control group, high levels of clinical cure rate were also detected in the PS128 group. Compared with the control group (22%), the incidence of adverse reactions was significantly reduced for patients in the PS128 group (4%). Conclusion: The treatment effect of citalopram combined with PS128 against anxiety is satisfactory clinically. It can greatly improve the anxiety symptoms of patients, increase the cure rate, reduce adverse reactions.

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