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Rea Hernández PA, Ramírez-Paz-Y-Puente GA, Montes-García F, Vázquez-Cruz C, Sanchez-Alonso P, Cobos-Justo ME, Zenteno E, Negrete-Abascal E. Epinephrine and norepinephrine regulate the expression of virulence factors in Gallibacterium anatis. Microb Pathog 2024; 196:106987. [PMID: 39374885 DOI: 10.1016/j.micpath.2024.106987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2024] [Revised: 09/09/2024] [Accepted: 09/28/2024] [Indexed: 10/09/2024]
Abstract
Gallibacterium anatis is a member of the Pasteurellaceae family and is an opportunistic pathogen that causes gallibacteriosis in chickens. Stress plays a relevant role in promoting the development of pathogenicity in G. anatis. Epinephrine (E) and norepinephrine (NE) are relevant to stress; however, their effects on G. anatis have not been elucidated. In this work, we evaluated the effects of E and NE on the growth, biofilm formation, expression of adhesins, and proteases of two G. anatis strains, namely, the hemolytic 12656-12 and the nonhemolytic F149T biovars. E (10 μM/mL) and NE (30 and 50 μM/mL) increased the growth of G. anatis 12656-12 by 20 % and 25 %, respectively. E did not affect the growth of F149T, whereas 40 μM/mL NE decreased bacterial growth by 25 %. E and NE at a dose of 30-50 μM/mL upregulated five fibrinogen adhesins in the 12565-12 strain, whereas no effect was observed in the F149T strain. NE increased proteolytic activity in both strains, whereas E diminished proteolytic activity in the 12656-12 strain. E and NE reduced biofilm formation (30 %) and increased Congo red binding (15 %) in both strains. QseBC is the E and NE two-component detection system most common in bacteria. The qseC gene, which is the E and NE receptor in bacteria, was identified in the genomic DNA of the 12565-12 and F149TG. anatis strains via PCR amplification. Our results suggest that QseC can detect host changes in E and NE concentrations and that catecholamines can modulate the expression of several virulence factors in G. anatis.
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Affiliation(s)
- Pablo A Rea Hernández
- Facultad de Estudios Superiores Iztacala, UNAM, Av. De Los Barrios 1, Los Reyes Iztacala, 54090, Tlalnepantla, Edo de México, Mexico
| | - Gerardo A Ramírez-Paz-Y-Puente
- Facultad de Estudios Superiores Iztacala, UNAM, Av. De Los Barrios 1, Los Reyes Iztacala, 54090, Tlalnepantla, Edo de México, Mexico
| | - Fernando Montes-García
- Facultad de Estudios Superiores Iztacala, UNAM, Av. De Los Barrios 1, Los Reyes Iztacala, 54090, Tlalnepantla, Edo de México, Mexico
| | | | | | | | - Edgar Zenteno
- Departamento de Bioquímica, Facultad de Medicina, UNAM, Mexico
| | - Erasmo Negrete-Abascal
- Facultad de Estudios Superiores Iztacala, UNAM, Av. De Los Barrios 1, Los Reyes Iztacala, 54090, Tlalnepantla, Edo de México, Mexico.
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Digital Holographic Microscopy for Label-Free Detection of Leukocyte Alternations Associated with Perioperative Inflammation after Cardiac Surgery. Cells 2022; 11:cells11040755. [PMID: 35203403 PMCID: PMC8869820 DOI: 10.3390/cells11040755] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Revised: 02/16/2022] [Accepted: 02/19/2022] [Indexed: 02/05/2023] Open
Abstract
In a prospective observational pilot study on patients undergoing elective cardiac surgery with cardiopulmonary bypass, we evaluated label-free quantitative phase imaging (QPI) with digital holographic microscopy (DHM) to describe perioperative inflammation by changes in biophysical cell properties of lymphocytes and monocytes. Blood samples from 25 patients were investigated prior to cardiac surgery and postoperatively at day 1, 3 and 6. Biophysical and morphological cell parameters accessible with DHM, such as cell volume, refractive index, dry mass, and cell shape related form factor, were acquired and compared to common flow cytometric blood cell markers of inflammation and selected routine laboratory parameters. In all examined patients, cardiac surgery induced an acute inflammatory response as indicated by changes in routine laboratory parameters and flow cytometric cell markers. DHM results were associated with routine laboratory and flow cytometric data and correlated with complications in the postoperative course. In a subgroup analysis, patients were classified according to the inflammation related C-reactive protein (CRP) level, treatment with epinephrine and the occurrence of postoperative complications. Patients with regular courses, without epinephrine treatment and with low CRP values showed a postoperative lymphocyte volume increase. In contrast, the group of patients with increased CRP levels indicated an even further enlarged lymphocyte volume, while for the groups of epinephrine treated patients and patients with complicative courses, no postoperative lymphocyte volume changes were detected. In summary, the study demonstrates the capability of DHM to describe biophysical cell parameters of perioperative lymphocytes and monocytes changes in cardiac surgery patients. The pattern of correlations between biophysical DHM data and laboratory parameters, flow cytometric cell markers, and the postoperative course exemplify DHM as a promising diagnostic tool for a characterization of inflammatory processes and course of disease.
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Liu X, Ye H, Zheng X, Zheng Z, Chen W, Yu X. Increased risk of catheter-related infection in critically ill patients given catecholamine inotropes during continuous renal replacement therapy. Hemodial Int 2021; 26:13-22. [PMID: 34318564 DOI: 10.1111/hdi.12968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Revised: 06/21/2021] [Accepted: 06/25/2021] [Indexed: 11/27/2022]
Abstract
INTRODUCTION Previous in vitro studies have shown that catecholamine inotropes are potent stimulators of bacterial growth and biofilm formation on catheter surfaces. This study aimed to investigate the effects of administering catecholamine inotropes during continuous renal replacement therapy (CRRT) on catheter-related infections in critically ill patients. METHODS This single-center retrospective cohort study included patients requiring CRRT in an intensive care unit from 2016 to 2017, who were divided into those who received and did not receive catecholamine inotropes for ≥24 h (catecholamine and control groups, respectively). The primary endpoint was catheter-related infection, including catheter-related colonization (CRCOL) and catheter-related bloodstream infection (CRBSI). FINDINGS We included 235 patients with 297 dialysis catheters. The catecholamine group had higher proportions of cardiovascular disease (p = 0.002), shock (p < 0.001), mechanical ventilation (p < 0.001), and antibiotic use (p = 0.013). There was no significant between-group difference in the CRBSI incidence (5.742 vs. 3.143 events/1000 catheter-days; p = 0.205). However, the CRCOL incidence was significantly higher in the catecholamine group than in the control group (6.221 vs. 0.898 events/1000 catheter-days; p = 0.006). The prominent pathogenic bacteria were gram-negative bacteria. After adjusting for confounding factors in multivariate logistic models, catecholamine inotropes (OR: 3.575, 95% CI: 1.422-9.912, p = 0.008) and immunosuppression (OR: 2.980, 95% CI: 1.137-7.812, p = 0.026) were independently associated with a higher risk of catheter-related infections. DISCUSSION We observed a similar incidence of catheter-related infection with that in other CRRT patients. Using catecholamine inotropes in those patients increased CRCOL risk, which is consistent with previous in vitro studies. Our findings suggest that catecholamine inotropes is an independent risk factor for catheter-related infections in critically ill patients undergoing CRRT.
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Affiliation(s)
- Xiaotian Liu
- Department of Nephrology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.,Key Laboratory of Nephrology, National Health Commission and Guangdong Province, Guangzhou, China
| | - Hongjian Ye
- Department of Nephrology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.,Key Laboratory of Nephrology, National Health Commission and Guangdong Province, Guangzhou, China
| | - Xunhua Zheng
- Department of Nephrology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.,Key Laboratory of Nephrology, National Health Commission and Guangdong Province, Guangzhou, China
| | - Zhihua Zheng
- Department of Nephrology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.,Key Laboratory of Nephrology, National Health Commission and Guangdong Province, Guangzhou, China
| | - Wei Chen
- Department of Nephrology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.,Key Laboratory of Nephrology, National Health Commission and Guangdong Province, Guangzhou, China
| | - Xueqing Yu
- Department of Nephrology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.,Key Laboratory of Nephrology, National Health Commission and Guangdong Province, Guangzhou, China
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Gotovina J, Bianchini R, Fazekas‐Singer J, Herrmann I, Pellizzari G, Haidl ID, Hufnagl K, Karagiannis SN, Marshall JS, Jensen‐Jarolim E. Epinephrine drives human M2a allergic macrophages to a regulatory phenotype reducing mast cell degranulation in vitro. Allergy 2020; 75:2939-2942. [PMID: 32246841 PMCID: PMC7687235 DOI: 10.1111/all.14299] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 02/24/2020] [Accepted: 03/18/2020] [Indexed: 12/12/2022]
Affiliation(s)
- Jelena Gotovina
- Comparative Medicine The Interuniversity Messerli Research Institute of the University of Veterinary Medicine Vienna Medical University of Vienna and University of Vienna Vienna Austria
- Institute of Pathophysiology and Allergy Research Center of Pathophysiology, Infectiology and Immunology Medical University of Vienna Vienna Austria
| | - Rodolfo Bianchini
- Comparative Medicine The Interuniversity Messerli Research Institute of the University of Veterinary Medicine Vienna Medical University of Vienna and University of Vienna Vienna Austria
- Institute of Pathophysiology and Allergy Research Center of Pathophysiology, Infectiology and Immunology Medical University of Vienna Vienna Austria
| | - Judit Fazekas‐Singer
- Comparative Medicine The Interuniversity Messerli Research Institute of the University of Veterinary Medicine Vienna Medical University of Vienna and University of Vienna Vienna Austria
- Institute of Pathophysiology and Allergy Research Center of Pathophysiology, Infectiology and Immunology Medical University of Vienna Vienna Austria
| | - Ina Herrmann
- Comparative Medicine The Interuniversity Messerli Research Institute of the University of Veterinary Medicine Vienna Medical University of Vienna and University of Vienna Vienna Austria
- Department for Companion Animals and Horses Small Animal Clinic Internal Medicine University of Veterinary Medicine Vienna Austria
| | - Giulia Pellizzari
- St John's Institute of Dermatology School of Basic and Medical Biosciences Guy's Cancer Centre King's College London London UK
| | - Ian D. Haidl
- Department of Microbiology and Immunology Dalhousie University Halifax NS Canada
| | - Karin Hufnagl
- Comparative Medicine The Interuniversity Messerli Research Institute of the University of Veterinary Medicine Vienna Medical University of Vienna and University of Vienna Vienna Austria
| | - Sophia N. Karagiannis
- Breast Cancer Now Unit School of Cancer and Pharmaceutical Sciences Guy's Cancer Centre King's College London London UK
| | - Jean S. Marshall
- Department of Microbiology and Immunology Dalhousie University Halifax NS Canada
| | - Erika Jensen‐Jarolim
- Comparative Medicine The Interuniversity Messerli Research Institute of the University of Veterinary Medicine Vienna Medical University of Vienna and University of Vienna Vienna Austria
- Institute of Pathophysiology and Allergy Research Center of Pathophysiology, Infectiology and Immunology Medical University of Vienna Vienna Austria
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