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Bartonella henselae

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https://www.readbyqxmd.com/read/28906180/amplification-of-mycoplasma-haemofelis-dna-by-a-pcr-for-point-of-care-use
#1
Jennifer Hawley, Tal Yaaran, Sarah Maurice, Michael R Lappin
We compared a qualitative in-clinic (IC)-PCR for the detection of Mycoplasma haemofelis DNA with the results of a commercial qualitative laboratory-based, conventional (c)PCR. In order to determine the specificity of both tests, Bartonella spp. samples were included. Forty-three previously tested blood samples with known PCR results for hemoplasmas and Bartonella spp. were selected. The samples were split between 2 laboratories. At the first laboratory, DNA was purified and run on 2 cPCR assays for the detection of hemoplasmas and Bartonella spp...
September 1, 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/28902296/an-unusual-case-of-bacillary-angiomatosis-in-the-oral-cavity-of-an-aids-patient-who-had-no-concomitant-tegumentary-lesions-case-report-and-review
#2
Walter de Araujo Eyer-Silva, Pedro Eugênio Mendes Arena Soares, Marcelo Costa Velho Mendes de Azevedo, Guilherme Almeida Rosa da Silva, Dario José Hart Pontes Signorini, Rogerio Neves-Motta, Jorge Francisco da Cunha Pinto, Lívia Machado Moura, Rodrigo Panno Basílio-de-Oliveira, Luciana Ferreira de Araujo, Alexsandra Rodrigues de Mendonça Favacho, Elba Regina Sampaio Lemos
Bacillary angiomatosis (BA) is an angioproliferative disease of immunocompromised patients that usually presents as vascular tumors in the skin and subcutaneous tissues. It is caused by chronic infections with either Bartonella henselae or B. quintana. Oral cavity BA is exceedingly rare and even rarer without simultaneous cutaneous disease. We report herein the case of a 51-year-old HIV-infected man who presented severe odynophagia and an eroded lesion on the hard palate that progressed to an oronasal fistula...
August 24, 2017: Revista do Instituto de Medicina Tropical de São Paulo
https://www.readbyqxmd.com/read/28899872/fever-bone-pain-and-erectile-dysfunction-where-is-the-cat
#3
Quentin Trefois, Jean-Christophe Marot, Halil Yildiz, Gregoire Wieers
Cat-scratch disease is due to Bartonella henselae and commonly presents as a localised papular lesion with regional lymphadenopathy. We report the case of a young man suffering general symptoms and dysautonomy characterised by an erectile dysfunction due to an invasive cat-scratch disease. He was successfully treated by tetracyclines during 3 weeks.
September 12, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28887102/molecular-detection-of-vector-borne-pathogens-in-greek-cats
#4
Mathios E Mylonakis, Megan Schreeg, Manolis K Chatzis, Julian Pearce, Henry S Marr, Manolis N Saridomichelakis, Adam J Birkenheuer
Infectious diseases have been increasingly recognized in cats worldwide. The objective of this study was the molecular investigation of the prevalence of selected pathogens in healthy and sick cats from Greece, a country highly endemic for several canine vector-borne pathogens. Blood and/or bone marrow samples from 50 clinically healthy and 50 sick adult (>1 year-old) cats were retrospectively examined for the amplification of Bartonella spp., haemoplasmas, Ehrlichia spp., Anaplasma spp., Babesia spp., and Cytauxzoon spp...
September 1, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/28884961/bartonellosis-in-chronic-kidney-disease-an-unrecognized-and-unsuspected-diagnosis
#5
REVIEW
Fateme Shamekhi Amiri
Systemic cat scratch disease or bartonellosis is a clinical entity caused by Bartonella henselae, which manifests with necrotizing granulomas in visceral organs. The cat flea, Ctenocephalides felis, is the vector responsible for horizontal transmission of the disease from cat to cat, and its bite can also infect humans. In immunocompromised patients including chronic kidney disease and renal transplant recipients, it can cause persistent and disseminated cat scratch disease. The aim of this paper is to perform a systematic review of the studies that have addressed the diagnostic methods of cat scratch disease in chronic kidney disease and renal transplant recipients...
September 8, 2017: Therapeutic Apheresis and Dialysis
https://www.readbyqxmd.com/read/28878740/dna-delivery-and-genomic-integration-into-mammalian-target-cells-through-type-iv-a-and-b-secretion-systems-of-human-pathogens
#6
Dolores L Guzmán-Herrador, Samuel Steiner, Anabel Alperi, Coral González-Prieto, Craig R Roy, Matxalen Llosa
We explore the potential of bacterial secretion systems as tools for genomic modification of human cells. We previously showed that foreign DNA can be introduced into human cells through the Type IV A secretion system of the human pathogen Bartonella henselae. Moreover, the DNA is delivered covalently attached to the conjugative relaxase TrwC, which promotes its integration into the recipient genome. In this work, we report that this tool can be adapted to other target cells by using different relaxases and secretion systems...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28876415/chronic-lymphadenopathy-caused-by-a-brazilian-strain-of-bartonella-henselae
#7
Paulo Eduardo Neves Ferreira Velho, Marina Rovani Drummond, Marcio Antonio Haro Adad, Maria Letícia Cintra, Stanley Sowy, Pedro Paulo Vissotto de Paiva Diniz
Bartonella henselae is a relevant causative agent of bartonelloses in humans. We described an immunocompetent patient with clinical manifestation of chronic cervical lymphadenopathy after a cat-scratch in her forearm. This case shows B. henselae infection persistence even after prolonged antibiotic treatment.
September 4, 2017: Revista do Instituto de Medicina Tropical de São Paulo
https://www.readbyqxmd.com/read/28819488/-elbow-abscess-revealing-cat-scratch-disease-about-a-case
#8
Mustafa Nkaoui, Ahmed El Bardouni, Omar Lazrek, Nasser Ibo, Fouad Zouaidia, Mohamed Kharmaz, Mohamed Elouadghiri, Omar Lamrani, Mustapha Mahfoud, Mohamed Saleh Berrada
Cat-scratch disease (CSD) is a common cause of chronic benign lymphadenopathy in the child and the young adult. Bartonella henselae is the agent responsible for this disease. Common symptoms include regional lymphadenopathy associated with fever. We report a clinically atypical and potentially misleading case of a 18-year old girl with CSD revealed by elbow abscess.
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/28780918/molecular-survey-of-bartonella-henselae-and-bartonella-clarridgeiae-in-pet-cats-across-japan-by-species-specific-nested-pcr
#9
S Sato, H Kabeya, A Negishi, H Tsujimoto, K Nishigaki, Y Endo, S Maruyama
Cats are known to be the main reservoir for Bartonella henselae and Bartonella clarridgeiae, which are the agents of 'cat-scratch disease' in humans. In the present study, we investigated the prevalence of the two Bartonella species on 1754 cat bloods collected from all prefectures in Japan during 2007-2008 by a nested-polymerase chain reaction (PCR) targeting the 16S-23S rRNA internal transcribed spacer region. Overall, Bartonella DNA was detected in 4·6% (80/1754) of the cats examined. The nested-PCR showed that 48·8% (39/80) of the positive cats were infected with B...
August 7, 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28707827/cat-scratch-disease-u-s-clinicians-experience-and-knowledge
#10
C A Nelson, A R Moore, A E Perea, P S Mead
Cat scratch disease (CSD) is a zoonotic infection caused primarily by the bacterium Bartonella henselae. An estimated 12,000 outpatients and 500 inpatients are diagnosed with CSD annually, yet little is known regarding clinician experience with and treatment of CSD in the United States. Questions assessing clinical burden, treatment and prevention of CSD were posed to 3,011 primary care providers (family practitioners, internists, paediatricians and nurse practitioners) during 2014-2015 as part of the annual nationwide DocStyles survey...
July 14, 2017: Zoonoses and Public Health
https://www.readbyqxmd.com/read/28700390/bartonella-henselae-neuroretinitis-associated-with-central-retinal-vein-occlusion-choroidal-ischemia-and-ischemic-optic-neuropathy
#11
Quraish Ghadiali, Larissa K Ghadiali, Lawrence A Yannuzzi
PURPOSE: We describe a healthy 37-year-old man with Bartonella henselae (B. henselae) neuroretinitis with concurrent central retinal vein occlusion and ischemic optic neuropathy resulting in optic atrophy and choroidal ischemia. METHODS: Case report. RESULTS: A 37-year-old man presented with unilateral decreased vision and a fundus examination consistent with neuroretinitis. Further imaging review supported a concurrent diagnosis of central retinal vein occlusion...
July 11, 2017: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/28693313/comparative-proteomic-analysis-of-the-outer-membrane-protein-43-omp43-deficient-bartonella-henselae
#12
Jun-Gu Kang, Hee-Woo Lee, Sungjin Ko, Joon-Seok Chae
Outer membrane proteins (OMPs) of gram-negative bacteria constitute the first line of defense that protects the cells against environmental stresses including chemical, biophysical, and biological attacks. Although 43-kDa outer membrane protein (OMP43) is major porin protein among the Bartonella henselae-derived OMPs, its function remains unknown. In this study, OMP43-deficient mutant B. henselae (Δomp43) was generated to investigate function of OMP43. Interestingly, Δomp43 showed a weaker proliferative ability compared to wild type (WT) of B...
July 10, 2017: Journal of Veterinary Science
https://www.readbyqxmd.com/read/28691834/-cat-scratch-disease-a-neglected-zoonosis
#13
L Hozáková, L Rožnovský, V Janout
Cat scratch disease is a relatively rare infection that is caused by the bacterium Bartonella henselae. This disease occurs after cat scratch or bite. The course of the disease depends on the patients immunity status. In immunocompetent patients, the disease typically runs as a lymph node syndrome. Sometimes, mild general symptoms may appear, or the course can be atypical with a more serious clinical manifestation involving various organs. In immunocompromised patients, Bartonella henselae can cause bacillary angiomatosis or peliosis with a severe course...
2017: Epidemiologie, Mikrobiologie, Imunologie
https://www.readbyqxmd.com/read/28669017/bartonella-henselae-is-usually-not-viable-in-lymph-nodes-of-patients-with-cat-scratch-disease
#14
E Prudent, H Lepidi, G Audoly, B La Scola, P-E Fournier, S Edouard, E Angelakis, D Raoult
Bartonella henselae, the agent of cat scratch disease (CSD), appears to be a common organism responsible for lymphadenitis in both adults and children. There is a very low isolation rate for B. henselae from lymph nodes of patients with CSD. Our objective was to evaluate B. henselae viability in a large series of lymph nodes from patients with CSD. From January to November 2016, we analyzed lymph node biopsy samples from patients diagnosed with CSD. We used reverse transcription-quantitative polymerase chain reaction (RT-qPCR) to detect B...
July 2, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/28588842/neurological-and-immunological-dysfunction-in-two-patients-with-bartonella-henselae-bacteremia
#15
David L Kaufman, Andreas M Kogelnik, Robert B Mozayeni, Natalie A Cherry, Edward B Breitschwerdt
Recently, BAPGM enrichment culture has documented Bartonella bacteremia in previously healthy, "nonimmunocompromised" patients following arthropod exposures. Neurobartonellosis should be among the differential diagnoses for patients with persistent or recurrent neurological symptoms of undetermined etiology. Microbiological and immunological testing should be concurrently pursued to determine whether defective immune function accompanies Bartonella bacteremia.
June 2017: Clinical Case Reports
https://www.readbyqxmd.com/read/28490714/the-seroprevalence-of-bartonella-henselae-in-healthy-adults-in-korea
#16
Hea Yoon Kwon, Jae Hyoung Im, Sun Myoung Lee, Ji Hyeon Baek, Areum Durey, Shin-Goo Park, Jae-Seung Kang, Jin-Soo Lee
BACKGROUND/AIMS: Cat-scratch disease (CSD), caused by Bartonella henselae is one of the most common zoonosis. However, only several cases of B. henselae infection have been reported in Korea. This study investigated the seroprevalence of B. henselae in healthy adults and related risk factors. METHODS: Serum samples from 300 healthy participants were analyzed using an immunoglobulin G immunof luorescence assay (IFA) for B. henselae isolated in Korea. Surveys on the risk factors for B...
May 2017: Korean Journal of Internal Medicine
https://www.readbyqxmd.com/read/28490579/bartonella-species-an-emerging-cause-of-blood-culture-negative-endocarditis
#17
REVIEW
Udoka Okaro, Anteneh Addisu, Beata Casanas, Burt Anderson
Since the reclassification of the genus Bartonella in 1993, the number of species has grown from 1 to 45 currently designated members. Likewise, the association of different Bartonella species with human disease continues to grow, as does the range of clinical presentations associated with these bacteria. Among these, blood-culture-negative endocarditis stands out as a common, often undiagnosed, clinical presentation of infection with several different Bartonella species. The limitations of laboratory tests resulting in this underdiagnosis of Bartonella endocarditis are discussed...
July 2017: Clinical Microbiology Reviews
https://www.readbyqxmd.com/read/28446372/prosthetic-valve-endocarditis-caused-by-bartonella-henselae-presenting-as-recurrent-fever-and-imitating-granulomatosis-with-polyangiitis
#18
Ryuichi Sada, Shunsuke Uno, Naoto Hosokawa, Tomoyoshi Komiya
No abstract text is available yet for this article.
April 23, 2017: Journal of the Formosan Medical Association, Taiwan Yi Zhi
https://www.readbyqxmd.com/read/28411218/the-conjugative-relaxase-trwc-promotes-integration-of-foreign-dna-in-the-human-genome
#19
Coral González-Prieto, Richard Gabriel, Christoph Dehio, Manfred Schmidt, Matxalen Llosa
Bacterial conjugation is a mechanism of horizontal DNA transfer. The relaxase TrwC of the conjugative plasmid R388 cleaves one strand of the transferred DNA at the oriT gene, covalently attaches to it, and leads the single-stranded DNA (ssDNA) into the recipient cell. In addition, TrwC catalyzes site-specific integration of the transferred DNA into its target sequence present in the genome of the recipient bacterium. Here, we report the analysis of the efficiency and specificity of the integrase activity of TrwC in human cells, using the type IV secretion system of the human pathogen Bartonella henselae to introduce relaxase-DNA complexes...
June 15, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28403058/multiorgan-involvement-confounding-the-diagnosis-of-bartonella-henselae-infective-endocarditis-in-children-with-congenital-heart-disease
#20
Christopher P Ouellette, Sarita Joshi, Karen Texter, Preeti Jaggi
Two children with congenital heart disease status post surgical correction presented with prolonged constitutional symptoms, hepatosplenomegaly and pancytopenia. Concern for malignancy prompted bone marrow biopsies that were without evidence thereof. In case 1, echocardiography identified a multilobulated vegetation on the conduit valve. In case 2, transthoracic, transesophageal and intracardiac echocardiography were performed and were without evidence of cardiac vegetations; however, pulmonic emboli raised concern for infective endocarditis...
May 2017: Pediatric Infectious Disease Journal
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