462 research outputs found

    On the reliability of a simple method for scoring phenotypes to estimate heritability: A case study with pupal color in Heliconius erato phyllis, Fabricius 1775 (Lepidoptera, Nymphalidae)

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    In this paper, two methods for assessing the degree of melanization of pupal exuviae from the butterfly Heliconius erato phyllis, Fabricius 1775 (Lepidoptera, Nymphalidae, Heliconiini) are compared. In the first method, which was qualitative, the exuviae were classified by scoring the degree of melanization, whereas in the second method, which was quantitative, the exuviae were classified by optical density followed by analysis with appropriate software. The heritability (h2) of the degree of melanization was estimated by regression and analysis of variance. The estimates of h 2 were similar with both methods, indicating that the qualitative method could be particularly suitable for field work. The low estimates obtained for heritability may have resulted from the small sample size (n = 7-18 broods, including the parents) or from the allocation-priority hypothesis in which pupal color would be a lower priority trait compared to morphological traits and adequate larval development

    Bartonella Clarridgeiae Bacteremia Detected In An Asymptomatic Blood Donor

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    Human exposure to Bartonella clarridgeiae has been reported only on the basis of antibody detection. We report for the first time an asymptomatic human blood donor infected with B. clarridgeiae, as documented by enrichment blood culture, PCR, and DNA sequencing.531352356Maggi, R.G., Duncan, A.W., Breitschwerdt, E.B., Novel chemically modified liquid medium that will support the growth of seven Bartonella species (2005) J Clin Microbiol, 43, pp. 2651-2655. , http://dx.doi.org/10.1128/JCM.43.6.2651-2655.2005Drummond, M.R., Pitassi, L.H., Lania, B.G., Dos Santos, S.R., Gilioli, R., Velho, P.E., Detection of Bartonella henselae in defibrinated sheep blood used for culture media supplementation (2011) Braz J Microbiol, 42, pp. 430-432. , http://dx.doi.org/10.1590/S1517-83822011000200003Altschul, S.F., Gish, W., Miller, W., Myers, E.W., Lipman, D.J., Basic local alignment search tool (1990) J Mol Biol, 215, pp. 403-410Dalton, M.J., Robinson, L.E., Cooper, J., Regnery, R.L., Olson, J.G., Childs, J.E., Use of Bartonella antigens for serologic diagnosis of cat-scratch disease at a national referral center (1995) Arch Intern Med, 155, pp. 1670-1676Breitschwerdt, E.B., Maggi, R.G., Chomel, B.B., Lappin, M.R., Bartonellosis: An emerging infectious disease of zoonotic importance to animals and human beings (2010) J Vet Emerg Crit Care (San Antonio), 20, pp. 8-30. , http://dx.doi.org/10.1111/j.1476-4431.2009.00496.xChamberlin, J., Laughlin, L.W., Romero, S., Solorzano, N., Gordon, S., Andre, R.G., Pachas, P., Watts, D., Epidemiology of endemic Bartonella bacilliformis: A prospective cohort study in a Peruvian mountain valley community (2002) J Infect Dis, 186, pp. 983-990. , http://dx.doi.org/10.1086/344054Maggi, R.G., Ericson, M., Mascarelli, P.E., Bradley, J.M., Breitschwerdt, E.B., Bartonella henselae bacteremia in a mother and son potentially associated with tick exposure (2013) Parasit Vectors, 6, p. 101. , http://dx.doi.org/10.1186/1756-3305-6-101Scott, M.A., McCurley, T.L., Vnencak-Jones, C.L., Hager, C., McCoy, J.A., Anderson, B., Collins, R.D., Edwards, K.M., Cat scratch disease: Detection of Bartonella henselae DNA in archival biopsies from patients with clinically, serologically, and histologically defined disease (1996) Am J Pathol, 149, pp. 2161-2167Slater, L.N., Welch, D.F., Min, K.W., Rochalimaea henselae causes bacillary angiomatosis and peliosis hepatis (1992) Arch Intern Med, 152, pp. 602-606Sander, A., Zagrosek, A., Bredt, W., Schiltz, E., Piemont, Y., Lanz, C., Dehio, C., Characterization of Bartonella clarridgeiae flagellin (FlaA) and detection of antiflagellin antibodies in patients with lymphadenopathy (2000) J Clin Microbiol, 38, pp. 2943-2948Kordick, D.L., Hilyard, E.J., Hadfield, T.L., Wilson, K.H., Steigerwalt, A.G., Brenner, D.J., Breitschwerdt, E.B., Bartonella clarridgeiae, a newly recognized zoonotic pathogen causing inoculation papules, fever, and lymphadenopathy (cat scratch disease) (1997) J Clin Microbiol, 35, pp. 1813-1818Margileth, A.M., Baehren, D.F., Chest-wall abscess due to cat-scratch disease (CSD) in an adult with antibodies to Bartonella clarridgeiae: Case report and review of the thoracopulmonary manifestations of CSD (1998) Clin Infect Dis, 27, pp. 353-357. , http://dx.doi.org/10.1086/514671Chomel, B.B., Mac Donald, K.A., Kasten, R.W., Chang, C.C., Wey, A.C., Foley, J.E., Thomas, W.P., Kittleson, M.D., Aortic valve endocarditis in a dog due to Bartonella clarridgeiae (2001) J Clin Microbiol, 39, pp. 3548-3554. , http://dx.doi.org/10.1128/JCM.39.10.3548-3554.2001Gillespie, T.N., Washabau, R.J., Goldschmidt, M.H., Cullen, J.M., Rogala, A.R., Breitschwerdt, E.B., Detection of Bartonella henselae and Bartonella clarridgeiae DNA in hepatic specimens from two dogs with hepatic disease (2003) J Am Vet Med Assoc, 222, pp. 47-51. , http://dx.doi.org/10.2460/javma.2003.222.47, 35Robinson, M.T., Hillman, T., Langton, D.A., Shaw, S.E., Bartonella clarridgeiae in a cat in the UK (2009) Vet Rec, 164, pp. 58-59. , http://dx.doi.org/10.1136/vr.164.2.58Sykes, J.E., Westropp, J.L., Kasten, R.W., Chomel, B.B., Association between Bartonella species infection and disease in pet cats as determined using serology and culture (2010) J Feline Med Surg, 12, pp. 631-636. , http://dx.doi.org/10.1016/j.jfms.2010.04.003Fouch, B., Coventry, S., A case of fatal disseminated Bartonella henselae infection (cat-scratch disease) with encephalitis (2007) Arch Pathol Lab Med, 131, pp. 1591-1594Boudebouch, N., Sarih, M., Beaucournu, J.C., Amarouch, H., Hassar, M., Raoult, D., Parola, P., Bartonella clarridgeiae, B. Henselae, and Rickettsia felis in fleas from Morocco (2011) Ann Trop Med Parasitol, 105, pp. 493-498. , http://dx.doi.org/10.1179/1364859411Y.0000000038Kordick, D.L., Brown, T.T., Shin, K., Breitschwerdt, E.B., Clinical and pathologic evaluation of chronic Bartonella henselae or Bartonella clarridgeiae infection in cats (1999) J Clin Microbiol, 37, pp. 1536-1547Chomel, B.B., Carlos, E.T., Kasten, R.W., Yamamoto, K., Chang, C.C., Carlos, R.S., Abenes, M.V., Pajares, C.M., Bartonella henselae and Bartonella clarridgeiae infection in domestic cats from the Philippines (1999) Am J Trop Med Hyg, 60, pp. 593-597Dehio, C., Bartonella interactions with endothelial cells and erythrocytes (2001) Trends Microbiol, 9, pp. 279-285. , http://dx.doi.org/10.1016/S0966-842X(01)02047-9Dehio, C., Meyer, M., Berger, J., Schwarz, H., Lanz, C., Interaction of Bartonella henselae with endothelial cells results in bacterial aggregation on the cell surface and the subsequent engulfment and internalisation of the bacterial aggregate by a unique structure, the invasome (1997) J Cell Sci, 110 (18), pp. 2141-2154Braga Mdo, S., Diniz, P.P., André, M.R., Bortoli, C.P., Machado, R.Z., Molecular characterisation of Bartonella species in cats from São Luís, state of Maranhão, North-Eastern Brazil (2012) Mem Inst Oswaldo Cruz, 107, pp. 772-777. , http://dx.doi.org/10.1590/S0074-02762012000600011Eremeeva, M.E., Gerns, H.L., Lydy, S.L., Goo, J.S., Ryan, E.T., Mathew, S.S., Ferraro, M.J., Koehler, J.E., Bacteremia, fever, and splenomegaly caused by a newly recognized Bartonella species (2007) N Engl J Med, 356, pp. 2381-2387. , http://dx.doi.org/10.1056/NEJMoa065987Chomel, B.B., Boulouis, H.J., Breitschwerdt, E.B., Kasten, R.W., Vayssier-Taussat, M., Birtles, R.J., Koehler, J.E., Dehio, C., Ecological fitness and strategies of adaptation of Bartonella species to their hosts and vectors (2009) Vet Res, 40, p. 29. , http://dx.doi.org/10.1051/vetres/2009011Breitschwerdt, E.B., Maggi, R.G., Duncan, A.W., Nicholson, W.L., Hegarty, B.C., Woods, C.W., Bartonella species in blood of immunocompetent persons with animal and arthropod contact (2007) Emerg Infect Dis, 13, pp. 938-941. , http://dx.doi.org/10.3201/eid1306.061337Carson, J.L., Grossman, B.J., Kleinman, S., Tinmouth, A.T., Marques, M.B., Fung, M.K., Holcomb, J.B., Djulbegovic, B., Red blood cell transfusion: A clinical practice guideline from the AABB (2012) Ann Intern Med, 157, pp. 49-58. , http://dx.doi.org/10.7326/0003-4819-157-1-201206190-00429Ramirez-Arcos, S., Goldman, M., Blajchman, M., Bacterial contamination (2012) Transfusion Reaction, 4, pp. 153-189. , Popovsky MA (ed), American Association Of Blood Banks, Bethesda, MDVamvakas, E.C., Blajchman, M.A., Transfusion-related mortality: The ongoing risks of allogeneic blood transfusion and the available strategies for their prevention (2009) Blood, 113, pp. 3406-3417. , http://dx.doi.org/10.1182/blood-2008-10-167643Magalhães, R.F., Cintra, M.L., Barjas-Castro, M.L., Del Negro, G.M., Okay, T.S., Velho, P.E., Blood donor infected with Bartonella henselae (2010) Transfus Med, 20, pp. 280-282. , http://dx.doi.org/10.1111/j.1365-3148.2010.01001.xMagalhães, R.F., Pitassi, L.H., Salvadego, M., De Moraes, A.M., Barjas-Castro, M.L., Velho, P.E., Bartonella henselae survives after the storage period of red blood cell units: Is it transmissible by transfusion? (2008) Transfus Med, 18, pp. 287-291. , http://dx.doi.org/10.1111/j.1365-3148.2008.00871.xLin, J.W., Chen, C.M., Chang, C.C., Unknown fever and back pain caused by Bartonella henselae in a veterinarian after a needle puncture: A case report and literature review (2011) Vector Borne Zoonotic Dis, 11, pp. 589-591. , http://dx.doi.org/10.1089/vbz.2009.0217Oliveira, A.M., Maggi, R.G., Woods, C.W., Breitschwerdt, E.B., Suspected needle stick transmission of Bartonella vinsonii subspecies berkhoffii to a veterinarian (2010) J Vet Intern Med, 24, pp. 1229-1232. , http://dx.doi.org/10.1111/j.1939-1676.2010.0563.xOhl, M.E., Spach, D.H., Bartonella quintana and urban trench fever (2000) Clin Infect Dis, 31, pp. 131-135. , http://dx.doi.org/10.1086/313890Daly, J.S., Worthington, M.G., Brenner, D.J., Moss, C.W., Hollis, D.G., Weyant, R.S., Steigerwalt, A.G., O'Connor, S.P., Rochalimaea elizabethae sp. Nov. Isolated from a patient with endocarditis (1993) J Clin Microbiol, 31, pp. 872-881Oksi, J., Rantala, S., Kilpinen, S., Silvennoinen, R., Vornanen, M., Veikkolainen, V., Eerola, E., Pulliainen, A.T., Cat scratch disease caused by Bartonella grahamii in an immunocompromised patient (2013) J Clin Microbiol, 51, pp. 2781-2784. , http://dx.doi.org/10.1128/JCM.00910-13Breitschwerdt, E.B., Mascarelli, P.E., Schweickert, L.A., Maggi, R.G., Hegarty, B.C., Bradley, J.M., Woods, C.W., Hallucinations, sensory neuropathy, and peripheral visual deficits in a young woman infected with Bartonella koehlerae (2011) J Clin Microbiol, 49, pp. 3415-3417. , http://dx.doi.org/10.1128/JCM.00833-11Raoult, D., Roblot, F., Rolain, J.M., Besnier, J.M., Loulergue, J., Bastides, F., Choutet, P., First isolation of Bartonella alsatica from a valve of a patient with endocarditis (2006) J Clin Microbiol, 44, pp. 278-279. , http://dx.doi.org/10.1128/JCM.44.1.278-279.2006Welch, D.F., Carroll, K.C., Hofmeister, E.K., Persing, D.H., Robison, D.A., Steigerwalt, A.G., Brenner, D.J., Isolation of a new subspecies, Bartonella vinsonii subsp. Arupensis, from a cattle rancher: Identity with isolates found in conjunction with Borrelia burgdorferi and Babesia microti among naturally infected mice (1999) J Clin Microbiol, 37, pp. 2598-2601Probert, W., Louie, J.K., Tucker, J.R., Longoria, R., Hogue, R., Moler, S., Graves, M., Fritz, C.L., Meningitis due to a "Bartonella washoensis"-like human pathogen (2009) J Clin Microbiol, 47, pp. 2332-2335. , http://dx.doi.org/10.1128/JCM.00511-09Kosoy, M., Morway, C., Sheff, K.W., Bai, Y., Colborn, J., Chalcraft, L., Dowell, S.F., Petersen, L.R., Bartonella tamiae sp. Nov., a newly recognized pathogen isolated from three human patients from Thailand (2008) J Clin Microbiol, 46, pp. 772-775. , http://dx.doi.org/10.1128/JCM.02120-07Maggi, R.G., Kosoy, M., Mintzer, M., Breitschwerdt, E.B., Isolation of Candidatus Bartonella melophagi from human blood (2009) Emerg Infect Dis, 15, pp. 66-68. , http://dx.doi.org/10.3201/eid1501.081080Lin, E.Y., Tsigrelis, C., Baddour, L.M., Lepidi, H., Rolain, J.M., Patel, R., Raoult, D., Candidatus Bartonella mayotimonensis and endocarditis (2010) Emerg Infect Dis, 16, pp. 500-503. , http://dx.doi.org/10.3201/eid1603.081673Breitschwerdt, E.B., Maggi, R.G., Cadenas, M.B., De Paiva Diniz, P.P., A groundhog, a novel Bartonella sequence, and my father's death (2009) Emerg Infect Dis, 15, pp. 2080-2086. , http://dx.doi.org/10.3201/eid1512.AD151

    Search for direct production of charginos and neutralinos in events with three leptons and missing transverse momentum in √s = 7 TeV pp collisions with the ATLAS detector

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    A search for the direct production of charginos and neutralinos in final states with three electrons or muons and missing transverse momentum is presented. The analysis is based on 4.7 fb−1 of proton–proton collision data delivered by the Large Hadron Collider and recorded with the ATLAS detector. Observations are consistent with Standard Model expectations in three signal regions that are either depleted or enriched in Z-boson decays. Upper limits at 95% confidence level are set in R-parity conserving phenomenological minimal supersymmetric models and in simplified models, significantly extending previous results

    Jet size dependence of single jet suppression in lead-lead collisions at sqrt(s(NN)) = 2.76 TeV with the ATLAS detector at the LHC

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    Measurements of inclusive jet suppression in heavy ion collisions at the LHC provide direct sensitivity to the physics of jet quenching. In a sample of lead-lead collisions at sqrt(s) = 2.76 TeV corresponding to an integrated luminosity of approximately 7 inverse microbarns, ATLAS has measured jets with a calorimeter over the pseudorapidity interval |eta| < 2.1 and over the transverse momentum range 38 < pT < 210 GeV. Jets were reconstructed using the anti-kt algorithm with values for the distance parameter that determines the nominal jet radius of R = 0.2, 0.3, 0.4 and 0.5. The centrality dependence of the jet yield is characterized by the jet "central-to-peripheral ratio," Rcp. Jet production is found to be suppressed by approximately a factor of two in the 10% most central collisions relative to peripheral collisions. Rcp varies smoothly with centrality as characterized by the number of participating nucleons. The observed suppression is only weakly dependent on jet radius and transverse momentum. These results provide the first direct measurement of inclusive jet suppression in heavy ion collisions and complement previous measurements of dijet transverse energy imbalance at the LHC.Comment: 15 pages plus author list (30 pages total), 8 figures, 2 tables, submitted to Physics Letters B. All figures including auxiliary figures are available at http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/HION-2011-02
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