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Fingerhood S, Neupane P, Breitschwerdt EB, Choi EA. Diagnostic challenge in veterinary pathology: Tri-cavitary effusion in a cat with systemic pyogranulomatous inflammation. Vet Pathol 2024:3009858241226648. [PMID: 38247129 DOI: 10.1177/03009858241226648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2024]
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Liedig C, Neupane P, Lashnits E, Breitschwerdt EB, Maggi RG. Blood Supplementation Enhances Bartonella henselae Growth and Molecular Detection of Bacterial DNA in Liquid Culture. Microbiol Spectr 2023; 11:e0512622. [PMID: 37227273 PMCID: PMC10269525 DOI: 10.1128/spectrum.05126-22] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Accepted: 05/07/2023] [Indexed: 05/26/2023] Open
Abstract
Bacteria of the genus Bartonella, a member of the Alphaproteobacteria, are fastidious, Gram-negative, aerobic bacilli that comprise numerous species, subspecies, and genotypes. Bartonella henselae, with a worldwide distribution, infects cats, dogs, horses, humans, and other mammals. Diagnostically, direct detection of Bartonella henselae in patient blood specimens by culture or molecular methods is required to confirm infection with this bacterium. Enrichment blood culture combined with quantitative PCR (qPCR) or ddPCR enhances the sensitivity of direct detection. The addition of sheep blood to liquid culture media increased the Bartonella henselae DNA concentration compared to controls, additionally improving PCR direct detection sensitivity. IMPORTANCE This study aims to improve diagnostic detection of Bartonella henselae. Patient samples are combined with enriched bacterial cultures aimed at growing Bartonella henselae for the best possible chance at detection. However, current Bartonella growth methods could be improved. The DNA extraction method used by most laboratories should also be optimized. Sheep blood was added to increase the growth of Bartonella henselae and multiple DNA extraction methods were to be compared to each other.
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Affiliation(s)
- Chance Liedig
- Intracellular Pathogens Research Laboratory, Department of Clinical Sciences, and the Comparative Medicine Institute, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina, USA
| | - Pradeep Neupane
- Department of Microbiology and Immunology, School of Medicine, University of North Carolina, Chapel Hill, North Carolina, USA
| | - Erin Lashnits
- Department of Medical Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Edward B. Breitschwerdt
- Intracellular Pathogens Research Laboratory, Department of Clinical Sciences, and the Comparative Medicine Institute, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina, USA
| | - Ricardo G. Maggi
- Intracellular Pathogens Research Laboratory, Department of Clinical Sciences, and the Comparative Medicine Institute, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina, USA
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Adebali O, Yang Y, Neupane P, Dike NI, Boltz JL, Kose C, Braunstein M, Selby CP, Sancar A, Lindsey-Boltz LA. The Mfd protein is the transcription-repair coupling factor (TRCF) in Mycobacterium smegmatis. J Biol Chem 2023; 299:103009. [PMID: 36775124 PMCID: PMC10023983 DOI: 10.1016/j.jbc.2023.103009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 02/06/2023] [Accepted: 02/07/2023] [Indexed: 02/12/2023] Open
Abstract
In vitro and in vivo experiments with Escherichia coli have shown that the Mfd translocase is responsible for transcription-coupled repair, a subpathway of nucleotide excision repair involving the faster rate of repair of the transcribed strand than the nontranscribed strand. Even though the mfd gene is conserved in all bacterial lineages, there is only limited information on whether it performs the same function in other bacterial species. Here, by genome scale analysis of repair of UV-induced cyclobutane pyrimidine dimers, we find that the Mfd protein is the transcription-repair coupling factor in Mycobacterium smegmatis. This finding, combined with the inverted strandedness of UV-induced mutations in WT and mfd-E. coli and Bacillus subtilis indicate that the Mfd protein is the universal transcription-repair coupling factor in bacteria.
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Affiliation(s)
- Ogun Adebali
- Faculty of Engineering and Natural Sciences, Sabanci University, Istanbul, Türkiye; Department of Computational Science - Biological Sciences, TÜBİTAK Research Institute for Fundamental Sciences, Gebze, Türkiye
| | - Yanyan Yang
- Department of Biochemistry and Biophysics, University of North Carolina-Chapel Hill, Chapel Hill, North Carolina, USA
| | - Pradeep Neupane
- Department of Microbiology and Immunology, University of North Carolina-Chapel Hill, Chapel Hill, North Carolina, USA
| | - Nneka I Dike
- Department of Biochemistry and Biophysics, University of North Carolina-Chapel Hill, Chapel Hill, North Carolina, USA
| | - Julia L Boltz
- Department of Biochemistry and Biophysics, University of North Carolina-Chapel Hill, Chapel Hill, North Carolina, USA
| | - Cansu Kose
- Department of Biochemistry and Biophysics, University of North Carolina-Chapel Hill, Chapel Hill, North Carolina, USA
| | - Miriam Braunstein
- Department of Microbiology and Immunology, University of North Carolina-Chapel Hill, Chapel Hill, North Carolina, USA
| | - Christopher P Selby
- Department of Biochemistry and Biophysics, University of North Carolina-Chapel Hill, Chapel Hill, North Carolina, USA
| | - Aziz Sancar
- Department of Biochemistry and Biophysics, University of North Carolina-Chapel Hill, Chapel Hill, North Carolina, USA.
| | - Laura A Lindsey-Boltz
- Department of Biochemistry and Biophysics, University of North Carolina-Chapel Hill, Chapel Hill, North Carolina, USA
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Haque Y, Cao Y, Lominska C, Chung C, Pickard A, Bur A, Thomas S, Woodroof J, Yilmaz E, Neupane P, McCance D, Rosenthal D, Nair S, Thorstad W, Garden A, Caudell J, Wong S, Bonner J, Harris J, Gan G. A Retrospective Analysis of NRG/RTOG 0522: Low Myofibroblast Content in the Tumor-Associated Stroma may Predict Response to Epidermal Growth Factor Receptor (EGFR) Inhibitors. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Tahara M, Greil R, Rischin D, Harrington K, Burtness B, De Castro G, Psyrri A, Brana I, Neupane P, Bratland Å, Fuereder T, Hughes B, Mesia Nin R, Ngamphaiboon N, Rordorf T, Wan Ishak W, Lin J, Gumuscu B, Lerman N, Soulieres D. 659MO Pembrolizumab with or without chemotherapy for first-line treatment of recurrent/metastatic (R/M) head and neck squamous cell carcinoma (HNSCC): 5-year results from KEYNOTE-048. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Hui J, Ryan KA, Rademacher N, Neupane P, Breitschwerdt EB. Osteomyelitis associated with Bartonella henselae infection in a young cat. JFMS Open Rep 2022; 8:20551169221124910. [PMID: 36132422 PMCID: PMC9484048 DOI: 10.1177/20551169221124910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Case summary A 1-year-old male intact domestic shorthair cat was evaluated for acute onset
non-weightbearing left forelimb lameness and generalized peripheral lymphadenopathy. CT
identified a monostotic aggressive bone lesion with an incomplete fracture of the left
radial metaphysis. Bone aspirates yielded osteoblasts with minimal nuclear atypia.
Abdominal ultrasound revealed a nodular spleen and lymphadenopathy; cytologically, both
contained lymphoid hyperplasia. A urine histoplasma antigen test was negative.
Bartonella henselae and Mycoplasma haemominutum DNA
was amplified by PCR from peripheral blood. Indirect immunofluorescence documented
strong B henselae immunoreactivity, with lower Bartonella
vinsonii subspecies berkhoffii and Bartonella
koehlerae antibody titers. After the administration of doxycycline and
pradofloxacin for suspected Bartonella-induced osteomyelitis, lameness
resolved rapidly. Six-week post-treatment radiographs identified healing of the affected
bone, and Bartonella species enrichment blood culture was negative.
B henselae antibody titers decreased four-fold over a year,
supporting seroreversion. Relevance and novel information B henselae is a flea-transmitted, host-adapted species, not previously
implicated as a cause of osteomyelitis in cats. B henselae subclinical
bacteremia is highly prevalent among cats; however, bacteremia has been associated with
lymphadenopathy and febrile illness in cats. This report describes a unique clinical
presentation in association with B henselae infection in a cat.
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Affiliation(s)
- Jamie Hui
- Department of Veterinary Clinical Sciences, Louisiana State University, Baton Rouge, LA, USA
| | - Kirk A Ryan
- Department of Veterinary Clinical Sciences, Louisiana State University, Baton Rouge, LA, USA
| | - Nathalie Rademacher
- Department of Veterinary Clinical Sciences, Louisiana State University, Baton Rouge, LA, USA
| | - Pradeep Neupane
- Department of Microbiology and Immunology, School of Medicine, University of North Carolina, Chapel Hill, NC, USA
| | - Edward B Breitschwerdt
- Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, USA
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André MR, Neupane P, Lappin M, Herrin B, Smith V, Williams TI, Collins L, Bai H, Jorge GL, Balbuena TS, Bradley J, Maggi RG, Breitschwerdt EB. Using Proteomic Approaches to Unravel the Response of Ctenocephalides felis felis to Blood Feeding and Infection With Bartonella henselae. Front Cell Infect Microbiol 2022; 12:828082. [PMID: 35155282 PMCID: PMC8831700 DOI: 10.3389/fcimb.2022.828082] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Accepted: 01/07/2022] [Indexed: 01/19/2023] Open
Abstract
Among the Ctenocephalides felis felis-borne pathogens, Bartonella henselae, the main aetiological agent of cat scratch disease (CSD), is of increasing comparative biomedical importance. Despite the importance of B. henselae as an emergent pathogen, prevention of the diseases caused by this agent in cats, dogs and humans mostly relies on the use of ectoparasiticides. A vaccine targeting both flea fitness and pathogen competence is an attractive choice requiring the identification of flea proteins/metabolites with a dual effect. Even though recent developments in vector and pathogen -omics have advanced the understanding of the genetic factors and molecular pathways involved at the tick-pathogen interface, leading to discovery of candidate protective antigens, only a few studies have focused on the interaction between fleas and flea-borne pathogens. Taking into account the period of time needed for B. henselae replication in flea digestive tract, the present study investigated flea-differentially abundant proteins (FDAP) in unfed fleas, fleas fed on uninfected cats, and fleas fed on B. henselae-infected cats at 24 hours and 9 days after the beginning of blood feeding. Proteomics approaches were designed and implemented to interrogate differentially expressed proteins, so as to gain a better understanding of proteomic changes associated with the initial B. henselae transmission period (24 hour timepoint) and a subsequent time point 9 days after blood ingestion and flea infection. As a result, serine proteases, ribosomal proteins, proteasome subunit α-type, juvenile hormone epoxide hydrolase 1, vitellogenin C, allantoinase, phosphoenolpyruvate carboxykinase, succinic semialdehyde dehydrogenase, glycinamide ribotide transformylase, secreted salivary acid phosphatase had high abundance in response of C. felis blood feeding and/or infection by B. henselae. In contrast, high abundance of serpin-1, arginine kinase, ribosomal proteins, peritrophin-like protein, and FS-H/FSI antigen family member 3 was strongly associated with unfed cat fleas. Findings from this study provide insights into proteomic response of cat fleas to B. henselae infected and uninfected blood meal, as well as C. felis response to invading B. henselae over an infection time course, thus helping understand the complex interactions between cat fleas and B. henselae at protein levels.
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Affiliation(s)
- Marcos Rogério André
- Laboratory of Immunoparasitology, Department of Pathology, Reproduction and One Health, Faculdade de Ciências Agrárias e Veterinárias, Universidade Estadual Paulista (FCAV/UNESP), Jaboticabal, Brazil
- Intracellular Pathogens Research Laboratory, Department of Clinical Sciences, The Comparative Medicine Institute, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, United States
| | - Pradeep Neupane
- Intracellular Pathogens Research Laboratory, Department of Clinical Sciences, The Comparative Medicine Institute, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, United States
| | - Michael Lappin
- Department of Clinical Sciences, Center for Companion Animal Studies, Colorado State University, Fort Collins, CO, United States
| | - Brian Herrin
- Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS, United States
| | - Vicki Smith
- Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kansas State University, Manhattan, KS, United States
| | - Taufika Islam Williams
- Department of Chemistry, North Carolina State University, Raleigh, NC, United States
- Molecular Education, Technology and Research Innovation Center (METRIC), North Carolina State University, Raleigh, NC, United States
| | - Leonard Collins
- Molecular Education, Technology and Research Innovation Center (METRIC), North Carolina State University, Raleigh, NC, United States
| | - Hongxia Bai
- Department of Chemistry, North Carolina State University, Raleigh, NC, United States
- Molecular Education, Technology and Research Innovation Center (METRIC), North Carolina State University, Raleigh, NC, United States
| | - Gabriel Lemes Jorge
- Departmento de Biotecnologia Agropecuária e Ambiental, Faculdade de Ciências Agrárias e Veterinárias, Universidade Estadual Paulista (FCAV/UNESP), Jaboticabal, Brazil
| | - Tiago Santana Balbuena
- Departmento de Biotecnologia Agropecuária e Ambiental, Faculdade de Ciências Agrárias e Veterinárias, Universidade Estadual Paulista (FCAV/UNESP), Jaboticabal, Brazil
| | - Julie Bradley
- Intracellular Pathogens Research Laboratory, Department of Clinical Sciences, The Comparative Medicine Institute, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, United States
| | - Ricardo G. Maggi
- Intracellular Pathogens Research Laboratory, Department of Clinical Sciences, The Comparative Medicine Institute, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, United States
| | - Edward B. Breitschwerdt
- Intracellular Pathogens Research Laboratory, Department of Clinical Sciences, The Comparative Medicine Institute, College of Veterinary Medicine, North Carolina State University, Raleigh, NC, United States
- *Correspondence: Edward B. Breitschwerdt,
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Lashnits E, Thatcher B, Carruth A, Mestek A, Buch J, Beall M, Neupane P, Chandrashekar R, Breitschwerdt EB. Bartonella spp. seroepidemiology and associations with clinicopathologic findings in dogs in the United States. J Vet Intern Med 2021; 36:116-125. [PMID: 34788481 PMCID: PMC8783365 DOI: 10.1111/jvim.16311] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 10/28/2021] [Accepted: 11/03/2021] [Indexed: 01/14/2023] Open
Abstract
Background Improved understanding of Bartonella spp. serology in dogs may aid clinical decision making. Objective Describe demographic and geographic patterns of Bartonella spp. seroreactivity in dogs, and describe hematologic and serum biochemical abnormalities in Bartonella spp. seroreactive and nonseroreactive dogs. Animals Serum samples from 5957 dogs in the United States, previously submitted to IDEXX Reference Laboratories. Methods Serum was tested using 3 indirect ELISAs for B. henselae, B. vinsonii subsp. berkhoffii, and B. koehlerae. Complete blood count and serum biochemistry panel results were reviewed retrospectively. Results Overall, 6.1% of dogs were Bartonella spp. seroreactive. Toy breeds were less likely to be seroreactive (3.9%) than mixed breeds (7.5%; adjusted odds ratio [aOR], 0.48; 95% confidence interval [CI], 0.32‐0.72), and dogs <1 year old were less likely to be seroreactive (3.4%) than dogs 1 to 5.5 years of age (7.3%; aOR, 0.42; 95% CI, 0.23‐0.72). Dogs in the West South Central (9.8%) and South Atlantic (8.8%) regions were more likely than dogs elsewhere in the United States to be seroreactive (aOR, 2.22; 95% CI, 1.31‐3.87; aOR, 2.44; 95% CI, 1.38‐4.36). Conclusions and Clinical Importance Demographic and geographic findings for Bartonella spp. exposure were broadly comparable to previously reported patterns.
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Affiliation(s)
- Erin Lashnits
- Intracellular Pathogens Research Laboratory, Comparative Medicine Institute, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina, USA.,Department of Medical Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | | | | | | | - Jesse Buch
- IDEXX Laboratories Inc., Westbrook, Maine, USA
| | | | - Pradeep Neupane
- Intracellular Pathogens Research Laboratory, Comparative Medicine Institute, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina, USA
| | | | - Edward B Breitschwerdt
- Intracellular Pathogens Research Laboratory, Comparative Medicine Institute, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina, USA
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Lashnits E, Neupane P, Bradley JM, Richardson T, Maggi RG, Breitschwerdt EB. Comparison of Serological and Molecular Assays for Bartonella Species in Dogs with Hemangiosarcoma. Pathogens 2021; 10:pathogens10070794. [PMID: 34201572 PMCID: PMC8308881 DOI: 10.3390/pathogens10070794] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 06/18/2021] [Accepted: 06/18/2021] [Indexed: 11/23/2022] Open
Abstract
Currently, a gold standard diagnostic test for Bartonella infection in dogs is lacking. This represents a critical limitation for the development and evaluation of new diagnostic tests, as well as for the diagnosis of, and research on, bartonellosis in dogs. This retrospective observational study aims to compare the results of commonly performed and newly-reported Bartonella spp. diagnostic tests in banked clinical specimens from 90 dogs with hemangiosarcoma (HSA) using composite reference standard (CRS) and random effects latent class analysis (RE-LCA) techniques. Samples from each dog were tested using six serological or molecular diagnostic assays, including indirect fluorescent antibody (IFA) and Western blot (WB) for the detection of antibodies in serum, and qPCR and droplet digital PCR (ddPCR) in blood and fresh frozen tissue biopsy samples (mainly splenic HSA tumors and histopathologically normal spleen or skin/adipose tissue). Bartonella infection prevalence was estimated to be 78% based on the CRS (parallel testing with all six assays), and 64% based on the RE-LCA model. The assay with the highest diagnostic accuracy was qPCR performed on fresh frozen tissue biopsy samples (sensitivity: 94% by RE-LCA and 80% by CRS; specificity: 100%). When comparing newly-reported to traditional Bartonella diagnostic assays, ddPCR was more sensitive for the detection of Bartonella DNA than qPCR when testing blood samples (36% vs. 0%, p < 0.0001). Dogs that were positive on serological assays alone with negative molecular assays were highly unlikely (<3%) to be classified as infected by the RE-LCA model. These data indicate that Bartonella spp. DNA can be PCR amplified from fresh frozen tissues from a majority of dogs with HSA using both qPCR and ddPCR, supporting the use of these methods for future controlled studies comparing the prevalence of Bartonella spp. DNA in the tissue of dogs with HSA to that of unaffected controls.
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Affiliation(s)
- Erin Lashnits
- Department of Medical Sciences, School of Veterinary Medicine, University of Wisconsin, Madison, WI 53713, USA;
- Intracellular Pathogens Research Laboratory, Comparative Medicine Institute, College of Veterinary Medicine, North Carolina State University, Raleigh, NC 27606, USA; (P.N.); (J.M.B.); (T.R.); (R.G.M.)
| | - Pradeep Neupane
- Intracellular Pathogens Research Laboratory, Comparative Medicine Institute, College of Veterinary Medicine, North Carolina State University, Raleigh, NC 27606, USA; (P.N.); (J.M.B.); (T.R.); (R.G.M.)
| | - Julie M. Bradley
- Intracellular Pathogens Research Laboratory, Comparative Medicine Institute, College of Veterinary Medicine, North Carolina State University, Raleigh, NC 27606, USA; (P.N.); (J.M.B.); (T.R.); (R.G.M.)
| | - Toni Richardson
- Intracellular Pathogens Research Laboratory, Comparative Medicine Institute, College of Veterinary Medicine, North Carolina State University, Raleigh, NC 27606, USA; (P.N.); (J.M.B.); (T.R.); (R.G.M.)
| | - Ricardo G. Maggi
- Intracellular Pathogens Research Laboratory, Comparative Medicine Institute, College of Veterinary Medicine, North Carolina State University, Raleigh, NC 27606, USA; (P.N.); (J.M.B.); (T.R.); (R.G.M.)
- Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC 27606, USA
| | - Edward B. Breitschwerdt
- Intracellular Pathogens Research Laboratory, Comparative Medicine Institute, College of Veterinary Medicine, North Carolina State University, Raleigh, NC 27606, USA; (P.N.); (J.M.B.); (T.R.); (R.G.M.)
- Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC 27606, USA
- Correspondence:
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Cohen E, Dunn L, Neupane P, Gibson M, Leidner R, Savvides P, Hyland N, Trivedi T, Dudley M, Biswas S, Williams D, Norry E. 976TiP SPEARHEAD-2 trial design: A phase II pilot trial of ADP-A2M4 in combination with pembrolizumab in patients with recurrent or metastatic head and neck cancer. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.1091] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Greil R, Rischin D, Harrington K, Soulières D, Tahara M, de Castro G, Psyrri A, Baste N, Neupane P, Bratland Å, Fuereder T, Hughes B, Mesia R, Ngamphaiboon N, Rordorf T, Ishak WW, Lin J, Swaby R, Gumuscu B, Burtness B. 915MO Long-term outcomes from KEYNOTE-048: Pembrolizumab (pembro) alone or with chemotherapy (pembro+C) vs EXTREME (E) as first-line (1L) therapy for recurrent/metastatic (R/M) head and neck squamous cell carcinoma (HNSCC). Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.1030] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Morse R, Ganju R, Tennapel M, Neupane P, Kakarala K, Shnayder L, Bur A, Lominska C. Cetuximab Versus Other Non-Cisplatin Agents in the Treatment of Patients with Head and Neck Cancer Receiving Concurrent Chemoradiotherapy. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2019.11.237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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13
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Oppelt P, Ley J, Gay H, Daly M, Jackson R, Rich J, Pipkorn P, Paniello R, Palka K, Neupane P, Powell S, Spanos W, Gitau M, Liu J, Zevallos J, Thorstad W, Adkins D. nab-paclitaxel Monotherapy followed by Cetuximab and Radiation in Cisplatin-Unsuitable Patients with Locally Advanced Head and Neck Cancer: A Single-Arm, Multicenter Phase 2 Trial. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2019.11.348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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14
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Lashnits E, Neupane P, Maggi RG, Linder KE, Bradley JM, Balakrishnan N, Southern BL, McKeon GP, Chandrashekar R, Breitschwerdt EB. Detection of Bartonella spp. in dogs after infection with Rickettsia rickettsii. J Vet Intern Med 2019; 34:145-159. [PMID: 31891215 PMCID: PMC6979086 DOI: 10.1111/jvim.15675] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Accepted: 11/19/2019] [Indexed: 02/01/2023] Open
Abstract
Background Dynamics of infection by Bartonella and Rickettsia species, which are epidemiologically associated in dogs, have not been explored in a controlled setting. Objectives Describe an outbreak investigation of occult Bartonella spp. infection among a group of dogs, discovered after experimentally induced Rickettsia rickettsii (Rr) infection. Animals Six apparently healthy purpose‐bred Beagles obtained from a commercial vendor. Methods Retrospective and prospective study. Dogs were serially tested for Bartonella spp. and Rr using serology, culture, and PCR, over 3 study phases: 3 months before inoculation with Rr (retrospective), 6 weeks after inoculation with Rr (retrospective), and 8 months of follow‐up (prospective). Results Before Rr infection, 1 dog was Bartonella henselae (Bh) immunofluorescent antibody assay (IFA) seroreactive and 1 was Rickettsia spp. IFA seroreactive. After inoculation with Rr, all dogs developed mild Rocky Mountain spotted fever compatible with low‐dose Rr infection, seroconverted to Rickettsia spp. within 4‐11 days, and recovered within 1 week. When 1 dog developed ear tip vasculitis with intra‐lesional Bh, an investigation of Bartonella spp. infection was undertaken. All dogs had seroconverted to 1‐3 Bartonella spp. between 7 and 18 days after Rr inoculation. Between 4 and 8 months after Rr inoculation, Bh DNA was amplified from multiple tissues from 2 dogs, and Bartonella vinsonii subsp. berkhoffii (Bvb) DNA was amplified from 4 of 5 dogs' oral swabs. Conclusions and Clinical Importance Vector‐borne disease exposure was demonstrated in research dogs from a commercial vendor. Despite limitations, our results support the possibilities of recrudescence of chronic subclinical Bartonella spp. infection after Rr infection and horizontal direct‐contact transmission between dogs.
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Affiliation(s)
- Erin Lashnits
- Comparative Biomedical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina
| | - Pradeep Neupane
- Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina
| | - Ricardo G Maggi
- Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina.,Intracellular Pathogens Research Laboratory, Comparative Medicine Institute, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina
| | - Keith E Linder
- Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina
| | - Julie M Bradley
- Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina
| | - Nandhakumar Balakrishnan
- Intracellular Pathogens Research Laboratory, Comparative Medicine Institute, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina
| | - Brittany L Southern
- Laboratory Animal Resources, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina
| | - Gabriel P McKeon
- Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina.,Laboratory Animal Resources, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina
| | | | - Edward B Breitschwerdt
- Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina.,Intracellular Pathogens Research Laboratory, Comparative Medicine Institute, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina
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15
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Dulal S, Paudel B, Shah A, Neupane P, Acharya B, Chapagain S, Karn A, Shilpakar R, Thapa R, Gautam B, Brustugun O, Leighl N. EP1.01-40 Outcome of EGFR-Mutated and Non-Mutated Lung Adenocarcinoma Receiving Standard Therapy - A Nepalese Cohort. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.2013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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16
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Shilpakar R, Paudel B, Glode M, Shah A, Dulal S, Acharya B, Neupane P. P1.16-19 Understanding Physician Barriers in the Management of Lung Cancer in Nepal. Can Educational Intervention Make a Difference? J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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17
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Dulal S, Paudel B, Shah A, Neupane P, Acharya B, Chapagain S, Rayamajhi A, Thapa R, Brustugun O, Leighl N. EP1.01-30 Clinico-Pathological Profile of Adenocarcinoma of the Lung – A Prospective Study in a Nepalese Population. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.2007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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18
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Morse R, Ganju R, Tennapel M, Neupane P, Kakarala K, Shnayder L, Bur A, Lominska C. Nutritional and Inflammatory Markers as Predictors for Chemoradiation Tolerance and Outcomes in Head and Neck Cancer. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.1638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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19
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Jha AK, Neupane P, Pradhan M, Sharma KS, Shrestha S, Sigdel PR, Smeland S, Bruland ØS. Ewing Sarcoma in Nepal Treated With Combined Chemotherapy and Definitive Radiotherapy. J Glob Oncol 2019; 5:1-10. [PMID: 30917070 PMCID: PMC6449078 DOI: 10.1200/jgo.19.00015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
PURPOSE To our knowledge, we conducted the first prospective oncologic clinical trial in Nepal aimed at providing state-of-the-art chemotherapy to patients with Ewing sarcoma. The efficacy of external-beam radiotherapy (RT) as the sole local treatment modality was explored and deemed justified as a result of the lack of available advanced tumor-orthopedic services in Nepal. PATIENTS AND METHODS Twenty patients, 11 female and 9 male patients between the ages of 6 and 37 years, with newly diagnosed Ewing sarcoma were enrolled. Neoadjuvant combination chemotherapy, comprising well-established drug combinations, was administered in five courses before external-beam RT, during which one course of etoposide and ifosfamide was given. After RT, six additional chemotherapy courses were scheduled. RESULTS RT was tolerated well, providing rapid symptom relief and local tumor control, with no pathologic fractures observed among the 15 patients who received such treatment. Eleven patients completed the entire treatment protocol; seven patients were under continued follow-up, with no evidence of disease in six patients at a median follow-up time of 2.3 years (range, 1.3 to 3.1 years) and one patient alive but with a regional recurrence. Four patients experienced metastatic relapse and died as a result of their disease. Three treatment-related deaths linked to toxicity from chemotherapy occurred. Four of the six patients who refused to complete the treatment protocol and were lost to follow-up experienced progressive disease and were assumed dead. CONCLUSION This study was feasible with RT as the sole local treatment modality in combination with chemotherapy. As a result of the high number of patients lost to follow-up, no firm conclusions can be drawn, but the majority of the patients who completed treatment obtained durable long-term remissions.
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Affiliation(s)
| | | | - Manohar Pradhan
- Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway
| | | | | | | | - Sigbjørn Smeland
- Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway.,Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Øyvind S Bruland
- Norwegian Radium Hospital, Oslo University Hospital, Oslo, Norway.,Institute of Clinical Medicine, University of Oslo, Oslo, Norway
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20
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Kern ZT, Swartley OM, Neupane P, Balakrishnan N, Breitschwerdt EB. Pasteurella canis infective endocarditis in a dog. Vet Microbiol 2019; 229:14-19. [PMID: 30642590 DOI: 10.1016/j.vetmic.2018.12.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 12/02/2018] [Accepted: 12/03/2018] [Indexed: 10/27/2022]
Abstract
Infective endocarditis, an infrequent clinical syndrome in dogs, is typically associated with nondescript clinical signs such as fever, malaise and loss of appetite. Although an uncommonly reported infection in dogs, Pasteurella canis is an emerging pathogen with increasing relevance in the human microbiology literature. The goal of this study is to detail the clinical presentation and microbiological findings associated with a novel causative agent of infective endocarditis in the dog. Diagnostic evaluation as well as conventional, automated and molecular microbiological methods are highlighted. The recent literature regarding P. canis and infective endocarditis in companion animals and humans is reviewed. Although an unusual etiologic agent of infective endocarditis, awareness of P. canis as a diagnostic possibility is crucial to accurate microbial surveillance.
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Affiliation(s)
- Zachary T Kern
- Intracellular Pathogens Research Laboratory, North Carolina State University 1060 William Moore Drive, Raleigh, NC 27607, United States.
| | - Olivia M Swartley
- Intracellular Pathogens Research Laboratory, North Carolina State University 1060 William Moore Drive, Raleigh, NC 27607, United States.
| | - Pradeep Neupane
- Intracellular Pathogens Research Laboratory, North Carolina State University 1060 William Moore Drive, Raleigh, NC 27607, United States.
| | - Nandhakumar Balakrishnan
- Intracellular Pathogens Research Laboratory, North Carolina State University 1060 William Moore Drive, Raleigh, NC 27607, United States.
| | - Edward B Breitschwerdt
- Intracellular Pathogens Research Laboratory, North Carolina State University 1060 William Moore Drive, Raleigh, NC 27607, United States.
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21
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Southern BL, Neupane P, Ericson ME, Dencklau JC, Linder KE, Bradley JM, McKeon GP, Long CT, Breitschwerdt EB. Bartonella henselae in a dog with ear tip vasculitis. Vet Dermatol 2018; 29:537-e180. [PMID: 30318847 DOI: 10.1111/vde.12695] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/14/2018] [Indexed: 02/03/2023]
Abstract
BACKGROUND Bartonella henselae, a Gram-negative, zoonotic, alpha-proteobacteria has been previously implicated in association with cutaneous vasoproliferative lesions (bacillary angiomatosis), nodular panniculitis and multifocal erythema (erythema multiforme) in dogs. OBJECTIVE Describe clinical, microbiological and histological lesions in a dog with ear margin vasculitis and B. henselae infection. ANIMALS A 12-month-old, specific pathogen-free intact female beagle dog maintained in a vector-free laboratory animal resource facility. METHODS AND MATERIALS Bartonella and Rickettsia serological evaluation, Bartonella and Rickettsia PCR, Bartonella alpha-proteobacteria growth medium (BAPGM) enrichment blood culture/PCR, histopathological investigation and confocal immunohistochemical evaluation. RESULTS Serological investigation (seroreversion) and PCR testing of aural tissue biopsies failed to support Rickettsia rickettsii as a cause of the aural vasculitis; however, B. henselae, genotype San Antonio 2 DNA was amplified and sequenced from both ear tip margins and from normal-appearing abdominal skin. Seroconversion to B. henselae was documented retrospectively by IFA testing. Bartonella henselae organisms were visualized by confocal immunostaining within all three biopsies. Histopathology revealed small vessel necrotizing vasculitis and dermal necrosis. Bartonella henselae seroreversion and complete resolution of skin lesions occurred in conjunction with administration of oral doxycycline and enrofloxacin for six weeks. CONCLUSIONS AND CLINICAL IMPORTANCE Bartonella henselae is an emerging zoonotic pathogen that has been associated with leucocytoclastic vasculitis in humans and may have had a contributing or causative role in the development of the cutaneous aural margin vasculitis in this beagle.
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Affiliation(s)
- Brittany L Southern
- Laboratory Animal Resources, College of Veterinary Medicine, North Carolina State University, 1060 William Moore Drive, Raleigh, NC, 27607, USA
| | - Pradeep Neupane
- Intracellular Pathogens Research Laboratory, Comparative Medicine Institute, College of Veterinary Medicine, North Carolina State University, 1050 William Moore Drive, Raleigh, NC, 27607, USA
| | - Marna E Ericson
- Dermatology Imaging Center, Department of Dermatology, University of Minnesota, 2-145 Jackson Hall, 321 Church St. S.E, Minneapolis, MN, 55455, USA
| | - Jamie C Dencklau
- Dermatology Imaging Center, Department of Dermatology, University of Minnesota, 2-145 Jackson Hall, 321 Church St. S.E, Minneapolis, MN, 55455, USA
| | - Keith E Linder
- Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, 1060 William Moore Drive, Raleigh, NC, 27607, USA
| | - Julie M Bradley
- Intracellular Pathogens Research Laboratory, Comparative Medicine Institute, College of Veterinary Medicine, North Carolina State University, 1050 William Moore Drive, Raleigh, NC, 27607, USA
| | - Gabriel P McKeon
- Laboratory Animal Resources, College of Veterinary Medicine, North Carolina State University, 1060 William Moore Drive, Raleigh, NC, 27607, USA
| | - Charles T Long
- Department of Pathology and Laboratory Medicine, University of North Carolina at Chapel Hill, 1100 Bioinformatics Building, Chapel Hill, NC, 27599, USA
| | - Edward B Breitschwerdt
- Intracellular Pathogens Research Laboratory, Comparative Medicine Institute, College of Veterinary Medicine, North Carolina State University, 1050 William Moore Drive, Raleigh, NC, 27607, USA
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22
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Neupane P, Hegarty BC, Marr HS, Maggi RG, Birkenheuer AJ, Breitschwerdt EB. Evaluation of cell culture-grown Bartonella antigens in immunofluorescent antibody assays for the serological diagnosis of bartonellosis in dogs. J Vet Intern Med 2018; 32:1958-1964. [PMID: 30307643 PMCID: PMC6271329 DOI: 10.1111/jvim.15301] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Revised: 03/30/2018] [Accepted: 07/24/2018] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Because of poor sensitivity and questionable specificity of immunofluorescent antibody assays (IFAs), serological diagnosis of Bartonella species infections in dogs remains challenging. Despite limitations, IFA testing is the historical "gold standard" for Bartonella serodiagnosis in animals and humans. Because most diagnostic laboratories test against only 1 or 2 Bartonella spp., testing against a broader panel of Bartonella antigens may enhance diagnostic sensitivity and specificity. OBJECTIVE To evaluate the sensitivity and specificity of Bartonella IFA using 8 cell culture-grown Bartonella spp. isolates. ANIMALS Archived serum samples from 34 Bartonella spp. naturally exposed, polymerase chain reaction (PCR)-positive dogs and from 26 PCR-negative and IFA-negative dogs. METHODS Bartonella IFA sensitivity and specificity were assessed using cell culture-grown whole cell antigens derived from 3 Bartonella henselae (Bh) strains (Bh Houston 1, Bh San Antonio Type 2, Bh California 1), 3 Bartonella vinsonii subsp. berkhoffii genotypes (Bvb I, II, and III), Bartonella koehlerae (Bk), and Bartonella quintana (Bq). RESULTS Only 62% of 34 Bartonella spp. PCR-positive dogs were seroreactive to any of the 8 Bartonella IFA antigens, indicating low IFA sensitivity. PCR-positive dogs were most often IFA seroreactive to Bq (n = 15), to Bvb II (n = 13), or to both (n = 9) antigens. Of the 26 previously IFA-negative/PCR-negative dogs, 4 (15%) were seroreactive using the expanded antigen panel. CONCLUSION AND CLINICAL IMPORTANCE Despite IFA testing of dogs against 8 different Bartonella isolates, IFA sensitivity remained poor, and specificity was only 85%. Development of a reliable serological assay is needed to facilitate the diagnosis of Bartonella infection in dogs.
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Affiliation(s)
- Pradeep Neupane
- Department of Clinical Sciences and the Intracellular Pathogens Research Laboratory, Center for Comparative Medicine and Translational Research, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina
| | - Barbara C Hegarty
- Department of Clinical Sciences and the Intracellular Pathogens Research Laboratory, Center for Comparative Medicine and Translational Research, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina
| | - Henry S Marr
- Department of Clinical Sciences and the Intracellular Pathogens Research Laboratory, Center for Comparative Medicine and Translational Research, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina
| | - Ricardo G Maggi
- Department of Clinical Sciences and the Intracellular Pathogens Research Laboratory, Center for Comparative Medicine and Translational Research, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina
| | - Adam J Birkenheuer
- Department of Clinical Sciences and the Intracellular Pathogens Research Laboratory, Center for Comparative Medicine and Translational Research, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina
| | - Edward B Breitschwerdt
- Department of Clinical Sciences and the Intracellular Pathogens Research Laboratory, Center for Comparative Medicine and Translational Research, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina
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23
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Adkins D, Ley J, Gay H, Daly M, Jackson R, Rich J, Pipkorn P, Paniello R, Trinkaus K, Neupane P, Zevallos J, Thorstad W, Oppelt P. Multicenter phase II trial of nab-paclitaxel and cisplatin (AP) followed by chemoradiation therapy (CRT) for locally advanced head and neck squamous cell carcinoma (HNSCC). Ann Oncol 2018. [DOI: 10.1093/annonc/mdy287.023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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24
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Komiya T, Huang C, Neupane P, Chalise P. P2.07-019 Role of Anti-Angiogenesis on the Prognosis in Advanced Non-Small Cell Lung Cancer Who Are Treated with Immunotherapy. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.11.078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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25
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Lominska C, Hamilton J, Murray L, Neupane P, Shnayder L, Kakarala K, Chen A. Distress is Common Among Head and Neck Cancer Patients, with Marriage Protective for Older but Not Younger Patients. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.1897] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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26
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Cohen E, Saba N, Gitlitz B, Haddad R, Sukari A, Neupane P, Morris J, Misiukiewicz K, Manjarrez K, Dietsch G, Bryan J, Hershberg R, Ferris R. immunotherapy of cancer Active8: A randomized, double-blind, placebo-controlled study of chemotherapy plus cetuximab in combination with motolimod immunotherapy in patients with recurrent or metastatic squamous cell carcinoma of the head and neck. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw435.33] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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27
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Bhandari RB, Jha AK, Neupane P, Sigdel A, Chaurasia PP. Extracorporeal Irradiation in Malignant Bone Tumors. JNMA J Nepal Med Assoc 2015. [DOI: 10.31729/jnma.2790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
Extracorporeal irradiation is relatively a rare method used in the management of malignant bone tumors . It consists of en block removal of the tumor bearing bone segment, removal of the tumor from the bone, irradiation and re implantation back in the body.Keywords: extracorporeal irradiation; malignant bone tumors; osteosarcoma.
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28
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Bhandari RB, Jha AK, Neupane P, Chaurasia PP, Sigdel A. Extracorporeal Irradiation in Malignant Bone Tumors. JNMA J Nepal Med Assoc 2015; 53:192-194. [PMID: 27549504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023] Open
Abstract
Extracorporeal irradiation (ECI) is relatively a rare method used in the management of malignant bone tumors (MBT). It consists of en block removal of the tumor bearing bone segment, removal of the tumor from the bone, irradiation and re implantation back in the body.
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Affiliation(s)
- R B Bhandari
- Department of Radiation Oncology,Orthopaedics Unit, BP Koirala Memorial Cancer Hospital, Chitwan, Nepal
| | - A K Jha
- Department of Radiation Oncology,Orthopaedics Unit, BP Koirala Memorial Cancer Hospital, Chitwan, Nepal
| | - P Neupane
- Department of Radiation Oncology,Orthopaedics Unit, BP Koirala Memorial Cancer Hospital, Chitwan, Nepal
| | - P P Chaurasia
- Department of Radiation Oncology,Orthopaedics Unit, BP Koirala Memorial Cancer Hospital, Chitwan, Nepal
| | - A Sigdel
- Department of Surgical Oncology,Orthopaedics Unit, BP Koirala Memorial Cancer Hospital, Chitwan, Nepal
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29
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Doke K, Bowman L, Shnayder Y, Neupane P, Yeh H, Brown L, Lominska C. Lymphedema Therapy Improves Neck Circumference, Range of Motion, and Pain Scores in Head and Neck Radiation Therapy Patients. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.1729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Doke K, Bowman L, Shnayder L, Tsue T, Girod D, Neupane P, Lominska C. Quantitative Effects of Lymphedema Therapy in Patients With Head-and-Neck Cancer. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2013.11.205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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31
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Doke K, Bowman L, Shnayder L, Tsue T, Girod D, Neupane P, Lominska C. Quantitative Effects of Head and Neck Lymphedema Therapy. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.1279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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32
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Acharya B, Jha AK, Shretha S, Karn A, Bhandari RB, Poudel S, Sharma S, Neupane P. Rectal malignancies in B. P. Koirala Memorial Cancer Hospital: A 10-year experience. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.e14127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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33
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Feddersen B, Ausserer H, Thanbichler F, Neupane P, Waanders R, Noachtar S. Right Temporal Cerebral Dysfunction Heralds Symptoms of Acute Mountain Sickness. KLIN NEUROPHYSIOL 2006. [DOI: 10.1055/s-2006-939135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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