1.Molecular and clinical characteristics of community-acquired methicillin-resistant Staphylococcus aureus isolated from Chinese children with pneumonia
Shipeng LI ; Juan LI ; Lijuan WANG ; Jing SUN ; Mingjiao SUN ; Yanhong QIAO ; Xue NING ; Tin ZENG ; Yonghong YANG ; Xuzhuang SHEN
Journal of Clinical Pediatrics 2013;(6):514-518
10.3969/j.issn.1000-3606.2013.06.005
2. Evaluation of the effectiveness of nasal feeding registration form based on energy intake optimization design for patients with oral cancer
Dongye YANG ; Mingjiao HOU ; Xingfang HE ; Lihua CAO ; Qiuyu HUANG
Chinese Journal of Practical Nursing 2019;35(31):2429-2433
Objective:
To evaluate the effect of a new kind of nasogastric feeding registration form based on energy intake in perioperative nutrition support for patients with oral cancer.
Methods:
According to the specification of nasal feeding and summarizing the ingredients in common foods, the form was optimized and applied. By the cluster sampling method, the knowledge about energy intake of 12 nurses were investigated before and after the use of the form. The accuracy of energy intake assessment of 5 patients by 12 nurses respectively and the time required for single registration was compared before and after the use. Meanwhile, the knowledge about nasal feeding of 18 patients before the use and 17 patients after the use was compared.
Results:
The mean score of knowledge about energy intake of nurses was 57.50±17.77 before the use, which was lower than that after the use (89.00 ±6.18)
3.Identification of the target site of antimicrobial peptide AMP-17 against Candida albicans.
Longbing YANG ; Zhuqing TIAN ; Luoxiong ZHOU ; Chaoqin SUN ; Mingjiao HUANG ; Chunren TIAN ; Jian PENG ; Guo GUO
Chinese Journal of Biotechnology 2023;39(1):304-317
Candida albicans is one of the major causes of invasive fungal infections and a serious opportunistic pathogen in immunocompromised individuals. The antimicrobial peptide AMP-17 has prominent anti-Candida activity, and proteomic analysis revealed significant differences in the expression of cell wall (XOG1) and oxidative stress (SRR1) genes upon the action of AMP-17 on C. albicans, suggesting that AMP-17 may exert anti-C. albicans effects by affecting the expression of XOG1 and SRR1 genes. To further investigate whether XOG1 and SRR1 genes were the targets of AMP-17, C. albicans xog1Δ/Δ and srr1Δ/Δ mutants were constructed using the clustered regulatory interspaced short palindromic repeats-associated protein 9 (CRISPR/Cas9) system. Phenotypic observations revealed that deletion of two genes had no significant effect on C. albicans growth and biofilm formation, whereas XOG1 gene deletion affected in vitro stress response and mycelium formation of C. albicans. Drug sensitivity assay showed that the MIC80 values of AMP-17 against xog1Δ/Δ and srr1Δ/Δ mutants increased from 8 μg/mL (for the wild type C. albicans SC5314) to 16 μg/mL, while the MIC80 values against srr1Δ/Δ: : srr1 revertants decreased to the level of the wild type SC5314. In addition, the ability of AMP-17 to inhibit biofilm formation of both deletion strains was significantly reduced compared to that of wild type SC5314, indicating that the susceptibility of the deletion mutants to AMP-17 was reduced in both the yeast state and during biofilm formation. These results suggest that XOG1 and SRR1 genes are likely two of the potential targets for AMP-17 to exert anti-C. albicans effects, which may facilitate further exploration of the antibacterial mechanism of novel peptide antifungal drugs.
Humans
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Candida albicans
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Antimicrobial Peptides
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Proteomics
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Peptides/pharmacology*
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Transcription Factors/metabolism*
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Antifungal Agents/pharmacology*