Frontiers in Cellular and Infection Microbiology最新文献

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In silico testing to identify compounds that inhibit ClfA and ClfB binding to the host for the formulation of future drugs against Staphylococcus aureus colonization and infection. 进行硅学测试,以确定可抑制 ClfA 和 ClfB 与宿主结合的化合物,用于配制未来抗金黄色葡萄球菌定植和感染的药物。
IF 4.6 2区 医学
Frontiers in Cellular and Infection Microbiology Pub Date : 2024-10-01 eCollection Date: 2024-01-01 DOI: 10.3389/fcimb.2024.1422500
Shila Kumari Singh, Minakshi Bhattacharjee, Balagopalan Unni, Rajpal Singh Kashyap, Abdul Malik, Suhail Akhtar, Sabiha Fatima
{"title":"<i>In silico</i> testing to identify compounds that inhibit ClfA and ClfB binding to the host for the formulation of future drugs against <i>Staphylococcus aureus</i> colonization and infection.","authors":"Shila Kumari Singh, Minakshi Bhattacharjee, Balagopalan Unni, Rajpal Singh Kashyap, Abdul Malik, Suhail Akhtar, Sabiha Fatima","doi":"10.3389/fcimb.2024.1422500","DOIUrl":"https://doi.org/10.3389/fcimb.2024.1422500","url":null,"abstract":"<p><strong>Introduction: </strong><i>Staphylococcus aureus</i> is a highly resistant pathogen. It has multiple virulence factors, which makes it one of the most pathogenic bacteria for humankind. The vast increase in antibiotic resistance in these bacteria is a warning of existing healthcare policies. Most of the available antibiotics are ineffective due to resistance; this situation requires the development of drugs that target specific proteins and are not susceptible to resistance.</p><p><strong>Methods: </strong>In this study, we identified a compound that acts as an antagonist of ClfA and ClfB by inhibiting their binding to host cells.</p><p><strong>Results: </strong>The shortlisted compound's binding activity was tested by docking and molecular dynamics during its interaction with proteins. The identified compound has excellent binding energy with both ClfA (-10.11 kcal/mol) and ClfB (-11.11 kcal/mol).</p><p><strong>Discussion: </strong>The molecular dynamics of the protein and compound were stable and promising for further <i>in vitro</i> and <i>in vivo</i> tests. The performance of our compound was tested and compared with that of the control molecule allantodapsone, which was reported in a previous study as a pan inhibitor of the clumping factor. An ADMET study of our selected compound revealed its reliable drug likeliness. This compound is an ideal candidate for <i>in vitro</i> studies.</p>","PeriodicalId":12458,"journal":{"name":"Frontiers in Cellular and Infection Microbiology","volume":null,"pages":null},"PeriodicalIF":4.6,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11475578/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142462056","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Distribution characteristics of integrons and correlation analysis of antibiotic resistance in urine isolated Enterobacter cloacae. 尿液分离出的泄殖腔肠杆菌中整合子的分布特征及抗生素耐药性的相关性分析
IF 4.6 2区 医学
Frontiers in Cellular and Infection Microbiology Pub Date : 2024-10-01 eCollection Date: 2024-01-01 DOI: 10.3389/fcimb.2024.1462742
Xuedan Qiu, Hui Zhang, Min Jiang, Qiaoping Wu, Qingcao Li, Guangliang Wu
{"title":"Distribution characteristics of integrons and correlation analysis of antibiotic resistance in urine isolated <i>Enterobacter cloacae</i>.","authors":"Xuedan Qiu, Hui Zhang, Min Jiang, Qiaoping Wu, Qingcao Li, Guangliang Wu","doi":"10.3389/fcimb.2024.1462742","DOIUrl":"https://doi.org/10.3389/fcimb.2024.1462742","url":null,"abstract":"<p><strong>Objective: </strong>This study aims to understand the distribution of integrons among <i>Enterobacter cloacae</i> isolated from clinical urine specimens in our hospital, as well as the molecular characteristics of the variable region resistance gene cassette of integron-positive strains and its relationship with drug resistance.</p><p><strong>Methods: </strong>We collected a total of 80 strains of <i>Enterobacter cloacae</i> isolated from urine specimens of hospitalized patients in our hospital between August 2019 and July 2023, and conducted drug sensitivity testing on them. Polymerase Chain Reaction (PCR) technology was employed to screen these strains for Class 1, 2, and 3 integrons. Following this, the promoter and variable regions of integron-positive strains were amplified and sequenced. Additionally, Enterobacterial Repetitive Intergenic Consensus PCR (ERIC-PCR) was utilized for homology analysis of integron-positive strains.</p><p><strong>Results: </strong>Among the 80 clinical strains, Class 1 integrons were detected in 31 (38.8%) strains, and the following resistance gene cassettes were identified: <i>aadA2</i>, <i>aadA1</i>, <i>aadB</i>, <i>aac(6')</i>, and <i>catB8</i>. Three types of variable region promoters were observed: PcS (4 strains), PcW (7 strains), and PcH1 (17 strains), with consistently inactive downstream P2 promoters. Additionally, Class 2 integrons were detected in 5 (6.3%) strains, carrying the variable region resistance gene cassette <i>dfrA1-sat2-aadA1</i>. The promoters for Class 2 integrons were uniformly of the Pc2D-Pc2A-Pc2B-Pc2C type. No Class 3 integrons were detected. The strains containing integrons showed significantly higher resistance rates to ciprofloxacin, compound sulfamethoxazole, levofloxacin, gentamicin, amikacin, and tobramycin compared to those without integrons (P<0.05). 35 strains of <i>Enterobacter cloacae</i> carrying integrons are primarily classified into three genotypes: A, B, and C. These genotypes are mainly distributed in the urology department and Intensive Care Unit (ICU). The distribution of variable region gene boxes and promoter types is relatively concentrated in the same genotype.</p><p><strong>Conclusion: </strong>Our study confirmed that <i>Enterobacter cloacae</i> isolated from urine samples predominantly carries Class 1 integrons with an extended array of antibiotic-resistant genes. For future research, it is recommended to explore additional resistance mechanisms and evaluate the effectiveness of new therapeutic strategies. Clinicians should be vigilant about the possibility of clonal dissemination and implement enhanced infection control measures in hospital settings.</p>","PeriodicalId":12458,"journal":{"name":"Frontiers in Cellular and Infection Microbiology","volume":null,"pages":null},"PeriodicalIF":4.6,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11473509/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142462077","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Lipoprotein transport system Lol may be a selective target for Gram-negative bacteria. 脂蛋白转运系统 Lol 可能是革兰氏阴性细菌的选择性靶标。
IF 4.6 2区 医学
Frontiers in Cellular and Infection Microbiology Pub Date : 2024-10-01 eCollection Date: 2024-01-01 DOI: 10.3389/fcimb.2024.1463316
Qiang Yang, Ying Cai, Zhibo Wang, Sifan Guo, Shi Qiu, Aihua Zhang
{"title":"Lipoprotein transport system Lol may be a selective target for Gram-negative bacteria.","authors":"Qiang Yang, Ying Cai, Zhibo Wang, Sifan Guo, Shi Qiu, Aihua Zhang","doi":"10.3389/fcimb.2024.1463316","DOIUrl":"https://doi.org/10.3389/fcimb.2024.1463316","url":null,"abstract":"","PeriodicalId":12458,"journal":{"name":"Frontiers in Cellular and Infection Microbiology","volume":null,"pages":null},"PeriodicalIF":4.6,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11484418/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142462102","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Recombinant adenoviruses expressing HPV16/18 E7 upregulate the HDAC6 and DNMT3B genes in C33A cells. 表达 HPV16/18 E7 的重组腺病毒能上调 C33A 细胞中的 HDAC6 和 DNMT3B 基因。
IF 4.6 2区 医学
Frontiers in Cellular and Infection Microbiology Pub Date : 2024-10-01 eCollection Date: 2024-01-01 DOI: 10.3389/fcimb.2024.1459572
Yunting Shao, Pir Tariq Shah, Qisheng Su, Shanhu Li, Fang Huang, Jun Wang, Peng Wang, Chengjun Wu
{"title":"Recombinant adenoviruses expressing HPV16/18 E7 upregulate the HDAC6 and DNMT3B genes in C33A cells.","authors":"Yunting Shao, Pir Tariq Shah, Qisheng Su, Shanhu Li, Fang Huang, Jun Wang, Peng Wang, Chengjun Wu","doi":"10.3389/fcimb.2024.1459572","DOIUrl":"https://doi.org/10.3389/fcimb.2024.1459572","url":null,"abstract":"<p><strong>Objective: </strong>High-risk human papillomavirus (HPV) is a carcinogenic virus associated with nearly all cases of cervical cancer, as well as an increasing number of anal and oral cancers. The two carcinogenic proteins of HPV, E6 and E7, can immortalize keratinocytes and are essential for HPV-related cellular transformation. Currently, the global regulatory effects of these oncogenic proteins on the host proteome are not fully understood, and further exploration of the functions and carcinogenic mechanisms of E6 and E7 proteins is needed.</p><p><strong>Methods: </strong>We used a previously established platform in our laboratory for constructing recombinant adenoviral plasmids expressing the HPV16 E7 gene to further construct recombinant virus particles expressing HPV16/18 E6, E7, and both E6 and E7 genes. These recombinant viruses were used to infect C33A cells to achieve sustained expression of the HPV16/18 E6/E7 genes. Subsequently, total RNA was extracted and RNA-Seq technology was employed for transcriptome sequencing to identify differentially expressed genes associated with HPV infection in cervical cancer.</p><p><strong>Results: </strong>RNA-Seq analysis revealed that overexpression of the HPV16/18 E6/E7 genes upregulated GP6, CD36, HDAC6, ESPL1, and DNMT3B among the differentially expressed genes (DEGs) associated with cervical cancer. Spearman correlation analysis revealed a statistically significant correlation between the HDAC6 and DNMT3B genes and key pathways, including DNA replication, tumor proliferation signature, G2M checkpoint, p53 pathways, and PI3K/AKT/mTOR signaling pathways. Further, qRT-PCR and Western blot analyses indicated that both HPV16/18 E7 can upregulate the expression of HDAC6 and DNMT3B, genes associated with HPV infection-related cervical cancer.</p><p><strong>Conclusion: </strong>The successful expression of HPV16/18 E6/E7 in cells indicates that the recombinant viruses retain the replication and infection capabilities of Ad4. Furthermore, the recombinant viruses expressing HPV16/18 E7 can upregulate the HDAC6 and DNMT3B genes involved in cervical cancer pathways, thereby influencing the cell cycle. Additionally, HDAC6 and DNMT3B are emerging as important therapeutic targets for cancer. This study lays the foundation for further exploration of the oncogenic mechanisms of HPV E6/E7 and may provide new directions for the treatment of HPV-related cancers.</p>","PeriodicalId":12458,"journal":{"name":"Frontiers in Cellular and Infection Microbiology","volume":null,"pages":null},"PeriodicalIF":4.6,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11473514/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142462105","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Characterization of pathological features and immune microenvironment in hepatic tuberculosis and pulmonary tuberculosis. 肝结核病和肺结核的病理特征和免疫微环境特征。
IF 4.6 2区 医学
Frontiers in Cellular and Infection Microbiology Pub Date : 2024-09-30 eCollection Date: 2024-01-01 DOI: 10.3389/fcimb.2024.1418225
Qiang Niu, Runrui Wu, Ke Pan, Xinlan Ge, Wen Chen, Rong Liu
{"title":"Characterization of pathological features and immune microenvironment in hepatic tuberculosis and pulmonary tuberculosis.","authors":"Qiang Niu, Runrui Wu, Ke Pan, Xinlan Ge, Wen Chen, Rong Liu","doi":"10.3389/fcimb.2024.1418225","DOIUrl":"https://doi.org/10.3389/fcimb.2024.1418225","url":null,"abstract":"<p><p>Hepatic tuberculosis (HTB) is rare extrapulmonary tuberculosis that is clinically similar to liver malignancy, making it difficult for correct diagnoses. Pathology is the gold standard for tuberculosis diagnosis. However, there are few reports on the pathological features of HTB. A total of 32 HTB cases were considered and the differences in pathological features and drug resistance were analyzed and compared with those for pulmonary tuberculosis (PTB). Enhanced CT scans showed ring-shaped delayed enhancement during the arterial, venous, and delayed phases. Most HTB cases were single lesions, with the highest incidence in the right lobe, and the average lesion volume was smaller than that of PTB. The frequency of granuloma in pathological changes, the overall share of the lesion area in the HTB group, and the number of foxp3<sup>+</sup> cells were significantly higher than in the PTB group. However, no statistically significant differences were observed between the two groups' other pathological features and immune cell numbers. The immune microenvironment of the normal tissues surrounding the lesion was further analyzed. The findings showed that the number of macrophages and foxp3<sup>+</sup> cells in the HTB group was significantly higher than in the PTB group. No significant difference in drug resistance was detected between the HTB and PTB groups. In conclusion, there are substantial differences in the characterization of pathological feature and immune microenvironment between HTB and PTB. The frequency of granuloma and subsequent overall share of the lesion area was significantly higher in HTB compared to PTB.</p>","PeriodicalId":12458,"journal":{"name":"Frontiers in Cellular and Infection Microbiology","volume":null,"pages":null},"PeriodicalIF":4.6,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11472707/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142462074","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Minocycline is a promising candidate as a combination therapy with caspofungin for drug-resistant Candida. 米诺环素与卡泊芬净联合治疗耐药念珠菌的前景看好。
IF 4.6 2区 医学
Frontiers in Cellular and Infection Microbiology Pub Date : 2024-09-30 eCollection Date: 2024-01-01 DOI: 10.3389/fcimb.2024.1452497
Kazuhiro Itoh, Hiroshi Tsutani, Yasuhiko Mitsuke, Hiromichi Iwasaki
{"title":"Minocycline is a promising candidate as a combination therapy with caspofungin for drug-resistant <i>Candida</i>.","authors":"Kazuhiro Itoh, Hiroshi Tsutani, Yasuhiko Mitsuke, Hiromichi Iwasaki","doi":"10.3389/fcimb.2024.1452497","DOIUrl":"https://doi.org/10.3389/fcimb.2024.1452497","url":null,"abstract":"","PeriodicalId":12458,"journal":{"name":"Frontiers in Cellular and Infection Microbiology","volume":null,"pages":null},"PeriodicalIF":4.6,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11471726/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142462103","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Fecal microbiota transplantation in a patient with chronic diarrhea and primary and secondary immunodeficiency (common variable immunodeficiency and splenectomy). 为一名患有慢性腹泻、原发性和继发性免疫缺陷症(常见变异性免疫缺陷症和脾切除术)的患者进行粪便微生物群移植。
IF 4.6 2区 医学
Frontiers in Cellular and Infection Microbiology Pub Date : 2024-09-30 eCollection Date: 2024-01-01 DOI: 10.3389/fcimb.2024.1456672
Katarzyna Napiórkowska-Baran, Jarosław Biliński, Małgorzata Pujanek, Paweł Hałakuc, Antoni Pietryga, Bartłomiej Szymczak, Aleksander Deptuła, Tomasz Rosada, Zbigniew Bartuzi
{"title":"Fecal microbiota transplantation in a patient with chronic diarrhea and primary and secondary immunodeficiency (common variable immunodeficiency and splenectomy).","authors":"Katarzyna Napiórkowska-Baran, Jarosław Biliński, Małgorzata Pujanek, Paweł Hałakuc, Antoni Pietryga, Bartłomiej Szymczak, Aleksander Deptuła, Tomasz Rosada, Zbigniew Bartuzi","doi":"10.3389/fcimb.2024.1456672","DOIUrl":"https://doi.org/10.3389/fcimb.2024.1456672","url":null,"abstract":"<p><p>The gut microbiota serves a crucial role in the development of host immunity. Immunocompromised patients are particularly vulnerable to dysbiosis not only by virtue of a defect in the immune system but also due to increased susceptibility to infection and multiple courses of antibiotic therapy. Fecal microbiota transplantation is by far the most effective option for restoring gastrointestinal homeostasis. However, it is contraindicated in patients with significant primary and secondary immunodeficiencies. This article presents the case of a 59-year-old patient with common variable immunodeficiency, after splenectomy at age 39 for primary immune thrombocytopenia, who manifested diarrhea of up to 10 stools per day accompanied by secondary malnutrition and cachexia. The patient was admitted to the hospital on multiple occasions due to this condition, with stool PCR tests confirming a HHV-5 (<i>Cytomegalovirus</i>, CMV) infection. Following the administration of valganciclovir, the patient's complaints diminished, although, upon cessation of the drug, the symptoms recurred. In addition, the patient had an intestinal infection with <i>C. difficile</i> etiology. Given that the patient's therapeutic options had been exhausted, after obtaining informed consent from the patient and approval from the bioethics committee to conduct a medical experiment, treatment of diarrhea was undertaken by fecal microbiota transplantation with the certified preparation Mbiotix HBI from the Human Biome Institute. The patient underwent two transplants, with a one-week interval between them. The initial procedure was performed using the endoscopic method, while the subsequent was conducted using the capsule method. Following the administration of the applied treatment, the patient's symptoms were successfully alleviated, and no adverse effects were observed. A microbiological analysis of the intestinal microbiota was conducted prior to and following transplantation via next-generation sequencing (NGS). No recurrence of symptoms was observed during the two-year follow-up period. To the best of our knowledge, this is the first fecal microbiota transplantation in an adult patient with primary and secondary immunodeficiency.</p>","PeriodicalId":12458,"journal":{"name":"Frontiers in Cellular and Infection Microbiology","volume":null,"pages":null},"PeriodicalIF":4.6,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11472351/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142462096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Risk factors and predictive model for nosocomial infections by extensively drug-resistant Acinetobacter baumannii. 广泛耐药鲍曼不动杆菌引起院内感染的风险因素和预测模型。
IF 4.6 2区 医学
Frontiers in Cellular and Infection Microbiology Pub Date : 2024-09-30 eCollection Date: 2024-01-01 DOI: 10.3389/fcimb.2024.1475428
Jingchao Shi, Xiaoting Mao, Jianghao Cheng, Lijia Shao, Xiaoyun Shan, Yijun Zhu
{"title":"Risk factors and predictive model for nosocomial infections by extensively drug-resistant <i>Acinetobacter baumannii</i>.","authors":"Jingchao Shi, Xiaoting Mao, Jianghao Cheng, Lijia Shao, Xiaoyun Shan, Yijun Zhu","doi":"10.3389/fcimb.2024.1475428","DOIUrl":"https://doi.org/10.3389/fcimb.2024.1475428","url":null,"abstract":"<p><strong>Background: </strong>Extensively drug-resistant Acinetobacter baumannii (XDRAB) has become a significant pathogen in hospital environments, particularly in intensive care units (ICUs). XDRAB's resistance to conventional antimicrobial treatments and ability to survive on various surfaces pose a substantial threat to patient health, often resulting in severe infections such as ventilator-associated pneumonia (VAP) and bloodstream infections (BSI).</p><p><strong>Methods: </strong>We retrospectively analyzed clinical data from 559 patients with XDRAB infections admitted to Jinhua Central Hospital between January 2021 and December 2023. Patients were randomly divided into a training set (391 cases) and a testing set (168 cases). Variables were selected using Lasso regression and logistic regression analysis, and a predictive model was constructed and validated internally and externally. Model performance and clinical utility were evaluated using the Hosmer-Lemeshow test, C-index, ROC curve, decision curve analysis (DCA), and clinical impact curve (CIC).</p><p><strong>Results: </strong>Lasso regression analysis was used to screen 35 variables, selecting features through 10-fold cross-validation. We chose lambda.1se=0.03450 (log(lambda.1se)=-3.367), including 10 non-zero coefficient features. These features were then included in a multivariate logistic regression analysis, identifying 8 independent risk factors for XDRAB infection: ICU stay of 1-7 days (OR=3.970, 95%CI=1.586-9.937), ICU stay >7 days (OR=12.316, 95%CI=5.661-26.793), hypoproteinemia (OR=3.249, 95%CI=1.679-6.291), glucocorticoid use (OR=2.371, 95%CI=1.231-4.564), urinary catheterization (OR=2.148, 95%CI=1.120-4.120), mechanical ventilation (OR=2.737, 95%CI=1.367-5.482), diabetes mellitus (OR=2.435, 95%CI=1.050-5.646), carbapenem use (OR=6.649, 95%CI=2.321-19.048), and β-lactamase inhibitor use (OR=4.146, 95%CI=2.145-8.014). These 8 factors were used to construct a predictive model visualized through a nomogram. The model validation showed a C-index of 0.932 for the training set and 0.929 for the testing set, with a Hosmer-Lemeshow test p-value of 0.47, indicating good calibration. Furthermore, the DCA curve demonstrated good clinical decision-making performance, and the CIC curve confirmed the model's reliable clinical impact.</p><p><strong>Conclusion: </strong>Regression analysis identified ICU stay duration, hypoproteinemia, glucocorticoid use, urinary catheterization, mechanical ventilation, diabetes mellitus, carbapenem use, and β-lactamase inhibitor use as independent risk factors for XDRAB infection. The corresponding predictive model demonstrated high accuracy and stability.</p>","PeriodicalId":12458,"journal":{"name":"Frontiers in Cellular and Infection Microbiology","volume":null,"pages":null},"PeriodicalIF":4.6,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11471650/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142462108","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Circadian regulation of dengue virus transmission and replication: insights into vector activity and viral dynamics. 登革热病毒传播和复制的昼夜节律调控:对病媒活动和病毒动态的认识。
IF 4.6 2区 医学
Frontiers in Cellular and Infection Microbiology Pub Date : 2024-09-30 eCollection Date: 2024-01-01 DOI: 10.3389/fcimb.2024.1482042
Milad Zandi, Fatemeh Sadat Mousavi
{"title":"Circadian regulation of dengue virus transmission and replication: insights into vector activity and viral dynamics.","authors":"Milad Zandi, Fatemeh Sadat Mousavi","doi":"10.3389/fcimb.2024.1482042","DOIUrl":"https://doi.org/10.3389/fcimb.2024.1482042","url":null,"abstract":"<p><p>Dengue fever, caused by dengue virus, poses a significant global health challenge, particularly in tropical regions where <i>Aedes aegypti</i> serves as the primary vector. The circadian clock <i>in Aedes aegypti</i> governs key behavioral and physiological processes, including activity patterns, feeding behaviors, and susceptibility to dengue virus infection. This article explores the influence of circadian rhythms on the mosquito's ability to transmit dengue virus, emphasizing how the circadian regulation of gene expression, immune responses, and lipid metabolism in the mosquito vector creates temporal windows that affect viral replication efficiency.</p>","PeriodicalId":12458,"journal":{"name":"Frontiers in Cellular and Infection Microbiology","volume":null,"pages":null},"PeriodicalIF":4.6,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11471723/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142485613","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Trends and hotspots on the relationship between gut microbiota and Parkinson's Disease: a bibliometric analysis. 肠道微生物群与帕金森病之间关系的趋势和热点:文献计量分析。
IF 4.6 2区 医学
Frontiers in Cellular and Infection Microbiology Pub Date : 2024-09-30 eCollection Date: 2024-01-01 DOI: 10.3389/fcimb.2024.1421270
Xuefeng Li, Xiaogang Hao, Chunhai Chen, Chao Zhai, Ting Pan, Xue Zhou, Yang Liu, Dalong Wu, Xinhua Chen
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