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Nagaoka K, Iwanaga N, Murai Y, Kawasuji H, Miura M, Sato Y, Ito H, Terasaki Y, Takazono T, Kosai K, Sugano A, Morinaga Y, Yanagihara K, Mukae H, Yamamoto Y. Clinical phenotype of anaerobic bacteremia unaccompanied by detectable abscess lesion: a 10-year retrospective, multicenter, observational-cohort study. Infection 2024:10.1007/s15010-024-02298-7. [PMID: 38767831 DOI: 10.1007/s15010-024-02298-7] [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: 03/10/2024] [Accepted: 05/13/2024] [Indexed: 05/22/2024]
Abstract
PURPOSE Despite the importance of abscess lesions in clinical decisions regarding anaerobic bacteremia (AB), their impact on clinical characteristics remains unclear. Herein, we aimed to elucidate the clinical factors associated with AB that were unaccompanied by detectable abscess lesions during the initial phase of infection. METHODS This was a multicenter retrospective observational study involving patients with culture-proven AB at six tertiary hospitals in Japan between January 2012 and March 2022. Data on clinical characteristics, laboratory and radiological findings were collected, and their associations with the absence of detectable abscess lesions were analyzed. RESULTS In total, 393 participants were included. Abscess lesions were absent in 42.7% of the entire cohort and detectable in the remaining patients. No differences were identified in the malignancy, severity, or 30-day mortality between patients with and without detectable abscess lesions. Multivariate logistic regression analysis adjusted for age and the modified Charlson comorbidity score revealed that the immunosuppressive status (febrile neutropenia or corticosteroid use), C-reactive protein (CRP) level ≤9.8 mg/dL at onset, and the presence of gram-positive anaerobic rods (GPARs) were independently associated with AB unaccompanied by detectable abscess lesions [odds ratios (ORs) 3.24, 3.00, and 2.81, respectively; p < 0.05]. CONCLUSION This study elucidated distinctive clinical and microbiological characteristics of AB unaccompanied by detectable abscess lesions, with relatively lower CRP elevation, immunosuppressive status, and GPARs as the causative anaerobes.
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Affiliation(s)
- Kentaro Nagaoka
- Department of Clinical Infectious Diseases, Toyama University Graduate School of Medicine and Pharmaceutical Sciences, 2630 Sugitani, Toyama, 930-0194, Japan.
| | - Naoki Iwanaga
- Department of Respiratory Medicine, Nagasaki University Hospital, Nagasaki, Japan
| | - Yushi Murai
- Department of Clinical Infectious Diseases, Toyama University Graduate School of Medicine and Pharmaceutical Sciences, 2630 Sugitani, Toyama, 930-0194, Japan
| | - Hitoshi Kawasuji
- Department of Clinical Infectious Diseases, Toyama University Graduate School of Medicine and Pharmaceutical Sciences, 2630 Sugitani, Toyama, 930-0194, Japan
| | - Masayoshi Miura
- Department of Infection Control, Toyama Nishi General Hospital, Toyama, Japan
| | - Yukihiro Sato
- Department of Infection Control, Kamiichi General Hospital, Toyama, Japan
| | - Hiroyuki Ito
- Department of Infection Control, Takaoka City Hospital, Toyama, Japan
| | - Yasushi Terasaki
- Department of Infection Control, Toyama City Hospital, Toyama, Japan
| | - Takahiro Takazono
- Department of Respiratory Medicine, Nagasaki University Hospital, Nagasaki, Japan
| | - Kosuke Kosai
- Department of Laboratory Medicine, Nagasaki University Hospital, Nagasaki, Japan
| | - Aki Sugano
- Center for Clinical Research, Toyama University Hospital, Toyama, Japan
| | - Yoshitomo Morinaga
- Department of Microbiology, Toyama University Graduate School of Medicine and Pharmaceutical Sciences, Toyama, Japan
| | - Katsunori Yanagihara
- Department of Laboratory Medicine, Nagasaki University Hospital, Nagasaki, Japan
| | - Hiroshi Mukae
- Department of Respiratory Medicine, Nagasaki University Hospital, Nagasaki, Japan
| | - Yoshihiro Yamamoto
- Department of Clinical Infectious Diseases, Toyama University Graduate School of Medicine and Pharmaceutical Sciences, 2630 Sugitani, Toyama, 930-0194, Japan
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McDaniel ZS, Hales KE, Nagaraja TG, Lawrence TE, Amachawadi RG, Carroll JA, Burdick Sanchez NC, Galyean ML, Smock TM, Ballou MA, Machado VS, Broadway PR. Short communication: evaluation of an endotoxin challenge and intraruminal bacterial inoculation model to induce liver abscesses in Holstein steers. J Anim Sci 2023; 101:skad242. [PMID: 37480360 PMCID: PMC10404062 DOI: 10.1093/jas/skad242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 07/21/2023] [Indexed: 07/24/2023] Open
Abstract
Holstein steers (n = 40; initial body weight [BW] = 96.0 ± 10.5 kg) were individually housed in a climate-controlled barn to evaluate potential models for the genesis of liver abscesses (LA). In this 2 × 2 factorial, steers were balanced by BW and randomly assigned to one of two treatments: 1) intravenous saline injection followed by intraruminal bacterial inoculation with Fusobacterium necrophorum subsp. necrophorum (1 × 109 colony forming unit [CFU]/mL) and Salmonella enterica serovar Lubbock (1 × 106 CFU/mL; CON; n = 20 steers); or 2) intravenous injection with 0.25 µg/kg BW of lipopolysaccharide (LPS; Escherichia coli O111:B4) followed by intraruminal bacterial inoculation of F. necrophorum subsp. necrophorum (1 × 109 CFU/mL) and S. enterica serovar Lubbock (1 × 106 CFU/mL; LBI; n = 20 steers) and 1 of 2 harvest dates (3 or 10 d post LPS infusion). Body weights were recorded on days -4, -1, 3, and 10, and blood was collected for hematology on days -4, 3, and 10, relative to LPS infusion on day 0. Intraruminal bacterial inoculation occurred on day 1. Steers from each treatment group were harvested at two different time points on day 3 or 10 to perform gross pathological examination of the lung, rumen, liver, LA (if present), and colon. Feed disappearance was less for LBI than CON (P < 0.01); however, BW did not differ (P = 0.33) between treatments. Neither treatment nor time differed for hematology (P ≥ 0.13), and no gross pathological differences were noted in the lung, liver, LA, or colon (P ≥ 0.25). A treatment × harvest date interaction was noted for ruminal pathology in which LBI had an increased percentage of abnormal rumen scores on day 3 (P < 0.01). These results suggest that an LPS challenge in combination with intraruminal bacterial inoculation of pathogens commonly isolated from LA was not sufficient to induce LA in steers within 3 or 10 d (P = 0.95) when compared to CON. Further evaluation is needed to produce a viable model to investigate the genesis and prevention of LA in cattle.
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Affiliation(s)
- Zach S McDaniel
- Department of Animal and Food Sciences, Texas Tech University, Lubbock, TX 79409, USA
| | - Kristin E Hales
- Department of Animal and Food Sciences, Texas Tech University, Lubbock, TX 79409, USA
| | - T G Nagaraja
- Department of Diagnostic Medicine/Pathology, College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506, USA
| | - Ty E Lawrence
- Department of Agricultural Sciences, West Texas A&M University, Canyon, TX 79016, USA
| | - Raghavendra G Amachawadi
- Department of Diagnostic Medicine/Pathology, College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506, USA
| | - Jeff A Carroll
- Department of Agricultural Sciences, United States Department of Agriculture, Agricultural Research Service, Livestock Issues Research Unit, Lubbock, TX 79401, USA
| | - Nicole C Burdick Sanchez
- Department of Agricultural Sciences, United States Department of Agriculture, Agricultural Research Service, Livestock Issues Research Unit, Lubbock, TX 79401, USA
| | - Michael L Galyean
- Department of Veterinary Sciences, Texas Tech University, Lubbock, TX 79409, USA
| | - Taylor M Smock
- Department of Animal and Food Sciences, Texas Tech University, Lubbock, TX 79409, USA
| | - Michael A Ballou
- Department of Veterinary Sciences, Texas Tech University, Lubbock, TX 79409, USA
| | - Vinicius S Machado
- Department of Veterinary Sciences, Texas Tech University, Lubbock, TX 79409, USA
| | - Paul R Broadway
- Department of Agricultural Sciences, United States Department of Agriculture, Agricultural Research Service, Livestock Issues Research Unit, Lubbock, TX 79401, USA
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Vasina DV, Antonova NP, Vorobev AM, Laishevtsev AI, Kapustin AV, Zulkarneev ER, Bochkareva SS, Kiseleva IA, Anurova MN, Aleshkin AV, Tkachuk AP, Gushchin VA. Efficacy of the Endolysin-Based Antibacterial Gel for Treatment of Anaerobic Infection Caused by Fusobacterium necrophorum. Antibiotics (Basel) 2021; 10:1260. [PMID: 34680839 PMCID: PMC8532708 DOI: 10.3390/antibiotics10101260] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 09/30/2021] [Accepted: 10/14/2021] [Indexed: 11/25/2022] Open
Abstract
Abscess formation is a common complication of severe life-threatening infections caused by obligate anaerobes. Fusobacterium necrophorum is among the frequently detected anaerobic pathogens from clinical specimens associated with liver abscesses, skin and soft tissue infections, or oral abscesses. The antimicrobial therapy for this kind of infection needs to be optimized. Here, we examined the possibility of treating F. necrophorum-induced abscess wound infections with candidate therapeutics based on three endolysins with activity against a broad spectrum of aerobe Gram-negative pathogens. Antibacterial gel containing three Gram-negative bacteria-targeting endolysins, LysAm24, LysAp22, and LysECD7, was formulated for topical use. Abscess formation was induced in rabbits with F. necrophorum and caused systemic infection. The survival and lifespan of the animals, general parameters, and biochemical and hematological blood tests were analyzed to assess the effectiveness of the gel treatment for the wound infection. The administration of the investigated gel twice per day for 5 days resulted in less acute inflammation, with decreased leukocytes and segmented neutrophils in the blood, retardation of infection progression, and an almost two-fold increase in the lifespan of the animals compared to the placebo group. The results indicate that endolysin-based therapy is an effective approach to treat anaerobic bacterial infections. The use of endolysins as independent pharmaceuticals, or their combination with antibiotics, could significantly reduce the development of complications in infectious diseases caused by sensitive bacterial species.
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Affiliation(s)
- Daria V. Vasina
- N.F. Gamaleya National Research Centre for Epidemiology and Microbiology, Ministry of Health of the Russian Federation, 123098 Moscow, Russia; (N.P.A.); (A.P.T.)
| | - Nataliia P. Antonova
- N.F. Gamaleya National Research Centre for Epidemiology and Microbiology, Ministry of Health of the Russian Federation, 123098 Moscow, Russia; (N.P.A.); (A.P.T.)
| | - Aleksei M. Vorobev
- G.N. Gabrichevsky Moscow Research Institute for Epidemiology and Microbiology, 125212 Moscow, Russia; (A.M.V.); (E.R.Z.); (S.S.B.); (I.A.K.); (A.V.A.)
| | - Aleksei I. Laishevtsev
- Federal State Budget Scientific Institution “Federal Scientific Centre VIEV” (FSC VIEV), 117218 Moscow, Russia; (A.I.L.); (A.V.K.)
| | - Andrei V. Kapustin
- Federal State Budget Scientific Institution “Federal Scientific Centre VIEV” (FSC VIEV), 117218 Moscow, Russia; (A.I.L.); (A.V.K.)
| | - Eldar R. Zulkarneev
- G.N. Gabrichevsky Moscow Research Institute for Epidemiology and Microbiology, 125212 Moscow, Russia; (A.M.V.); (E.R.Z.); (S.S.B.); (I.A.K.); (A.V.A.)
| | - Svetlana S. Bochkareva
- G.N. Gabrichevsky Moscow Research Institute for Epidemiology and Microbiology, 125212 Moscow, Russia; (A.M.V.); (E.R.Z.); (S.S.B.); (I.A.K.); (A.V.A.)
| | - Irina A. Kiseleva
- G.N. Gabrichevsky Moscow Research Institute for Epidemiology and Microbiology, 125212 Moscow, Russia; (A.M.V.); (E.R.Z.); (S.S.B.); (I.A.K.); (A.V.A.)
| | - Mariia N. Anurova
- Department of Pharmaceutical Technology, I.M. Sechenov First Moscow State Medical University (Sechenov University), 119435 Moscow, Russia;
| | - Andrei V. Aleshkin
- G.N. Gabrichevsky Moscow Research Institute for Epidemiology and Microbiology, 125212 Moscow, Russia; (A.M.V.); (E.R.Z.); (S.S.B.); (I.A.K.); (A.V.A.)
| | - Artem P. Tkachuk
- N.F. Gamaleya National Research Centre for Epidemiology and Microbiology, Ministry of Health of the Russian Federation, 123098 Moscow, Russia; (N.P.A.); (A.P.T.)
| | - Vladimir A. Gushchin
- N.F. Gamaleya National Research Centre for Epidemiology and Microbiology, Ministry of Health of the Russian Federation, 123098 Moscow, Russia; (N.P.A.); (A.P.T.)
- Department of Virology, Biological Faculty, Lomonosov Moscow State University, 119991 Moscow, Russia
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Nagaoka K, Yanagihara K, Morinaga Y, Kurosaka Y, Hoshino K, Kohno S. In vivo antianaerobe activity of DS-8587, a new fluoroquinolone, against Fusobacterium necrophorum in a mouse model. J Infect Chemother 2017; 23:131-135. [PMID: 28109739 DOI: 10.1016/j.jiac.2016.09.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2016] [Revised: 09/11/2016] [Accepted: 09/20/2016] [Indexed: 10/20/2022]
Abstract
DS-8587 is a novel parenteral fluoroquinolone, which has an activity equivalent to sitafloxacin against various pathogens including anaerobes. We examined the in vivo anti-anaerobic activity of DS-8587, and compared it with that of levofloxacin (LVFX), using a murine model of Fusobacterium necrophorum-induced liver abscess developed via blood borne infection. Mice with liver abscess infection caused by F. necrophorum were treated with saline (control), DS-8587 (0.8, 4, and 20 mg/kg twice daily), or LVFX (20 and 100 mg/kg) for a day. After treatment, the number of viable bacteria in liver was analyzed. We also analyzed the pharmacokinetics of these agents in plasma and the liver after initial treatment. The MICs of DS-8587 and LVFX were 0.015 and 1 mg/mL, respectively. DS-8587 eradicated the viable bacteria in the liver even at doses as low as 4 mg/kg. In contrast, the liver bacteria were not eradicated in any of the LVFX-treated mice even at a dose of 100 mg/kg (P < 0.05 compared with DS-8587, 4 or 20 mg/kg). The pharmacokinetic parameter AUC/MIC ratios for DS-8587 (4 mg/kg) and LVFX (100 mg/kg) were 96.7 and 60.8 in plasma and 600 and 145.6 in the liver, respectively. The AUC/MIC ratio showed the best correlation with efficacy of DS-8587. DS-8587 significantly reduced the number of viable bacteria in a murine model of F. necrophorum-induced liver abscess compared to LVFX. Our study demonstrated that the anti-anaerobic activity of quinolones in vivo was different from the MICs in vitro.
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Affiliation(s)
- Kentaro Nagaoka
- Department of Laboratory Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan; Second Department of Internal Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan; First Department of Internal Medicine, Hokkaido University Hospital, Hokkaido, Japan
| | - Katsunori Yanagihara
- Department of Laboratory Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan; Second Department of Internal Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.
| | - Yoshitomo Morinaga
- Department of Laboratory Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan; Second Department of Internal Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Yuichi Kurosaka
- Biological Research Laboratories, Daiichi Sankyo Co., Ltd., Tokyo, Japan
| | - Kazuki Hoshino
- Biological Research Laboratories, Daiichi Sankyo Co., Ltd., Tokyo, Japan
| | - Shigeru Kohno
- Second Department of Internal Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan; Global COE Program, Nagasaki University, Nagasaki, Japan
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Nagaoka K, Yanagihara K, Morinaga Y, Kohno S. Detection of Fusobacterium nucleatum in two cases of empyema and lung abscess using paromomycin-vancomycin supplemented Brucella HK agar. Anaerobe 2016; 43:99-101. [PMID: 28034636 DOI: 10.1016/j.anaerobe.2016.12.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Revised: 12/21/2016] [Accepted: 12/22/2016] [Indexed: 01/01/2023]
Abstract
Fusobacterium nucleatum was found in patients with empyema or pulmonary abscess, using paromomycin-vancomycin Brucella HK agar. In vitro examination revealed that growth of the strains differed significantly in different media. Clinicians should be aware that suboptimal F. nucleatum cultivation methods may result in an underestimation of its frequency.
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Affiliation(s)
- Kentaro Nagaoka
- Department of Laboratory Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan; Second Department of Internal Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan; First Department of Internal Medicine, Hokkaido University Hospital, Hokkaido, Japan
| | - Katsunori Yanagihara
- Department of Laboratory Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan; Second Department of Internal Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan.
| | - Yoshitomo Morinaga
- Department of Laboratory Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan; Second Department of Internal Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Shigeru Kohno
- Second Department of Internal Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan; Global COE Program, Nagasaki University, Nagasaki, Japan
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