Skip to main content
Erschienen in: Archives of Virology 12/2011

01.12.2011 | Original Article

High genetic variability and recombination in a begomovirus population infecting the ubiquitous weed Cleome affinis in northeastern Brazil

verfasst von: Sarah J. C. da Silva, Gloria P. Castillo-Urquiza, Braz T. Hora Júnior, Iraildes P. Assunção, Gaus S. A. Lima, Gilvan Pio-Ribeiro, Eduardo S. G. Mizubuti, F. Murilo Zerbini

Erschienen in: Archives of Virology | Ausgabe 12/2011

Einloggen, um Zugang zu erhalten

Abstract

Diseases caused by begomoviruses are a serious constraint to crop production in many tropical and subtropical areas of the world, including Brazil. Begomoviruses are whitefly-transmitted, single-stranded DNA viruses that are often associated with weed plants, which may act as natural reservoirs of viruses that cause epidemics in crop plants. Cleome affinis (family Capparaceae) is an annual weed that is frequently associated with leguminous crops in Brazil. Samples of C. affinis were collected in four states in the northeast of Brazil. Analysis of 14 full-length DNA-A components revealed that only one begomovirus was present, with 91-96% identity to cleome leaf crumple virus (ClLCrV). In a phylogenetic tree, ClLCrV forms a basal group relative to all other Brazilian begomoviruses. Evidence of multiple recombination events was detected among the ClLCrV isolates, which also display a high degree of genetic variability. Despite ClLCrV being the only begomovirus found, its phylogenetic placement, high genetic variability and recombinant nature suggest that C. affinis may act as a source of novel viruses for crop plants. Alternatively, ClLCrV could be a genetically isolated begomovirus. Further studies on the biological properties of ClLCrV should help to clarify the role of C. affinis in the epidemiological scenario of Brazilian begomoviruses.
Anhänge
Nur mit Berechtigung zugänglich
Literatur
1.
Zurück zum Zitat Andrade EC, Manhani GG, Alfenas PF, Calegario RF, Fontes EPB, Zerbini FM (2006) Tomato yellow spot virus a tomato-infecting begomovirus from Brazil with a closer relationship to viruses from Sida sp., forms pseudorecombinants with begomoviruses from tomato but not from Sida. J Gen Virol 87:3687–3696PubMedCrossRef Andrade EC, Manhani GG, Alfenas PF, Calegario RF, Fontes EPB, Zerbini FM (2006) Tomato yellow spot virus a tomato-infecting begomovirus from Brazil with a closer relationship to viruses from Sida sp., forms pseudorecombinants with begomoviruses from tomato but not from Sida. J Gen Virol 87:3687–3696PubMedCrossRef
2.
Zurück zum Zitat Castillo-Urquiza GP, Beserra JEA Jr, Bruckner FP, Lima ATM, Varsani A, Alfenas-Zerbini P, Zerbini FM (2008) Six novel begomoviruses infecting tomato and associated weeds in Southeastern Brazil. Arch Virol 153:1985–1989PubMedCrossRef Castillo-Urquiza GP, Beserra JEA Jr, Bruckner FP, Lima ATM, Varsani A, Alfenas-Zerbini P, Zerbini FM (2008) Six novel begomoviruses infecting tomato and associated weeds in Southeastern Brazil. Arch Virol 153:1985–1989PubMedCrossRef
3.
Zurück zum Zitat Castillo-Urquiza GP, Alfenas-Zerbini P, Beserra-Junior JEA, Mizubuti ESG, Varsani A, Martin DP, Zerbini FM (2010) Genetic structure of tomato-infecting begomovirus populations in two tomato-growing regions of Southeastern Brazil. In: Program and Abstracts, 6th International Geminivirus Symposium and 4th International ssDNA Comparative Virology Workshop, Guanajuato, Mexico Castillo-Urquiza GP, Alfenas-Zerbini P, Beserra-Junior JEA, Mizubuti ESG, Varsani A, Martin DP, Zerbini FM (2010) Genetic structure of tomato-infecting begomovirus populations in two tomato-growing regions of Southeastern Brazil. In: Program and Abstracts, 6th International Geminivirus Symposium and 4th International ssDNA Comparative Virology Workshop, Guanajuato, Mexico
4.
Zurück zum Zitat Costa AS (1975) Increase in the populational density of Bemisia tabaci, a threat to widespread virus infection of legume crops in Brazil. In: Bird J, Maramorosch K (eds) Tropical diseases of legumes. Academic Press, New York, p 171 Costa AS (1975) Increase in the populational density of Bemisia tabaci, a threat to widespread virus infection of legume crops in Brazil. In: Bird J, Maramorosch K (eds) Tropical diseases of legumes. Academic Press, New York, p 171
5.
Zurück zum Zitat Costa AS (1976) Whitefly-transmitted plant diseases. Annu Rev Phytopathol 14:429–440CrossRef Costa AS (1976) Whitefly-transmitted plant diseases. Annu Rev Phytopathol 14:429–440CrossRef
6.
Zurück zum Zitat Doyle JJ, Doyle JL (1987) A rapid DNA isolation procedure for small amounts of fresh leaf tissue. Phytochem Bull 19:11–15 Doyle JJ, Doyle JL (1987) A rapid DNA isolation procedure for small amounts of fresh leaf tissue. Phytochem Bull 19:11–15
7.
Zurück zum Zitat Excoffier L, Laval G, Schneider S (2005) Arlequin ver. 3.0: an integrated software package for population genetics data analysis. Evol Bioinf Online 1:47–50 Excoffier L, Laval G, Schneider S (2005) Arlequin ver. 3.0: an integrated software package for population genetics data analysis. Evol Bioinf Online 1:47–50
8.
Zurück zum Zitat Faria JC, Bezerra IC, Zerbini FM, Ribeiro SG, Lima MF (2000) Current status of geminivirus diseases in Brazil (in Portuguese). Fitopatol Bras 25:125–137 Faria JC, Bezerra IC, Zerbini FM, Ribeiro SG, Lima MF (2000) Current status of geminivirus diseases in Brazil (in Portuguese). Fitopatol Bras 25:125–137
9.
Zurück zum Zitat Fauquet CM, Briddon RW, Brown JK, Moriones E, Stanley J, Zerbini FM, Zhou X (2008) Geminivirus strain demarcation and nomenclature. Arch Virol 153:783–821PubMedCrossRef Fauquet CM, Briddon RW, Brown JK, Moriones E, Stanley J, Zerbini FM, Zhou X (2008) Geminivirus strain demarcation and nomenclature. Arch Virol 153:783–821PubMedCrossRef
10.
Zurück zum Zitat Fiallo-Olive E, Martinez-Zubiaur Y, Moriones E, Navas-Castillo J (2010) Complete nucleotide sequence of Sida golden mosaic Florida virus and phylogenetic relationships with other begomoviruses infecting malvaceous weeds in the Caribbean. Arch Virol 155:1535–1537PubMedCrossRef Fiallo-Olive E, Martinez-Zubiaur Y, Moriones E, Navas-Castillo J (2010) Complete nucleotide sequence of Sida golden mosaic Florida virus and phylogenetic relationships with other begomoviruses infecting malvaceous weeds in the Caribbean. Arch Virol 155:1535–1537PubMedCrossRef
11.
Zurück zum Zitat Frischmuth T, Engel M, Lauster S, Jeske H (1997) Nucleotide sequence evidence for the occurrence of three distinct whitefly-transmitted, Sida-infecting bipartite geminiviruses in Central America. J Gen Virol 78:2675–2682PubMed Frischmuth T, Engel M, Lauster S, Jeske H (1997) Nucleotide sequence evidence for the occurrence of three distinct whitefly-transmitted, Sida-infecting bipartite geminiviruses in Central America. J Gen Virol 78:2675–2682PubMed
12.
Zurück zum Zitat Garcia-Andres S, Monci F, Navas-Castillo J, Moriones E (2006) Begomovirus genetic diversity in the native plant reservoir Solanum nigrum: Evidence for the presence of a new virus species of recombinant nature. Virology 350:433–442PubMedCrossRef Garcia-Andres S, Monci F, Navas-Castillo J, Moriones E (2006) Begomovirus genetic diversity in the native plant reservoir Solanum nigrum: Evidence for the presence of a new virus species of recombinant nature. Virology 350:433–442PubMedCrossRef
13.
Zurück zum Zitat Graham AP, Martin DP, Roye ME (2010) Molecular characterization and phylogeny of two begomoviruses infecting Malvastrum americanum in Jamaica: Evidence of the contribution of inter-species recombination to the evolution of malvaceous weed-associated begomoviruses from the Northern Caribbean. Virus Genes 40:256–266PubMedCrossRef Graham AP, Martin DP, Roye ME (2010) Molecular characterization and phylogeny of two begomoviruses infecting Malvastrum americanum in Jamaica: Evidence of the contribution of inter-species recombination to the evolution of malvaceous weed-associated begomoviruses from the Northern Caribbean. Virus Genes 40:256–266PubMedCrossRef
14.
Zurück zum Zitat Guo XJ, Zhou XP (2006) Molecular characterization of a new begomovirus infecting Sida cordifolia and its associated satellite DNA molecules. Virus Genes 33:279–285PubMed Guo XJ, Zhou XP (2006) Molecular characterization of a new begomovirus infecting Sida cordifolia and its associated satellite DNA molecules. Virus Genes 33:279–285PubMed
15.
Zurück zum Zitat Hagen C, Rojas MR, Sudarshana MR, Xoconostle-Cazares B, Natwick ET, Turini TA, Gilbertson RL (2008) Biology and molecular characterization of Cucurbit leaf crumple virus, an emergent cucurbit-infecting begomovirus in the Imperial Valley of California. Plant Dis 92:781–793CrossRef Hagen C, Rojas MR, Sudarshana MR, Xoconostle-Cazares B, Natwick ET, Turini TA, Gilbertson RL (2008) Biology and molecular characterization of Cucurbit leaf crumple virus, an emergent cucurbit-infecting begomovirus in the Imperial Valley of California. Plant Dis 92:781–793CrossRef
16.
Zurück zum Zitat Hanssen IM, Lapidot M, Thomma B (2010) Emerging viral diseases of tomato crops. Mol Plant-Microbe Int 23:539–548CrossRef Hanssen IM, Lapidot M, Thomma B (2010) Emerging viral diseases of tomato crops. Mol Plant-Microbe Int 23:539–548CrossRef
17.
Zurück zum Zitat Hofer P, Engel M, Jeske H, Frischmuth T (1997) Nucleotide sequence of a new bipartite geminivirus isolated from the common weed Sida rhombifolia in Costa Rica. Virology 78:1785–1790 Hofer P, Engel M, Jeske H, Frischmuth T (1997) Nucleotide sequence of a new bipartite geminivirus isolated from the common weed Sida rhombifolia in Costa Rica. Virology 78:1785–1790
18.
Zurück zum Zitat Huson DH, Bryant D (2006) Application of phylogenetic networks in evolutionary studies. Mol Biol Evol 23:254–267PubMedCrossRef Huson DH, Bryant D (2006) Application of phylogenetic networks in evolutionary studies. Mol Biol Evol 23:254–267PubMedCrossRef
19.
Zurück zum Zitat Ilyas M, Qazi J, Mansoor S, Briddon RW (2010) Genetic diversity and phylogeography of begomoviruses infecting legumes in Pakistan. J Gen Virol 91:2091–2101PubMedCrossRef Ilyas M, Qazi J, Mansoor S, Briddon RW (2010) Genetic diversity and phylogeography of begomoviruses infecting legumes in Pakistan. J Gen Virol 91:2091–2101PubMedCrossRef
20.
Zurück zum Zitat Inoue-Nagata AK, Albuquerque LC, Rocha WB, Nagata T (2004) A simple method for cloning the complete begomovirus genome using the bacteriophage phi 29 DNA polymerase. J Virol Met 116:209–211CrossRef Inoue-Nagata AK, Albuquerque LC, Rocha WB, Nagata T (2004) A simple method for cloning the complete begomovirus genome using the bacteriophage phi 29 DNA polymerase. J Virol Met 116:209–211CrossRef
21.
Zurück zum Zitat Jones RAC (2009) Plant virus emergence and evolution: Origins, new encounter scenarios, factors driving emergence, effects of changing world conditions, and prospects for control. Virus Res 141:113–130PubMedCrossRef Jones RAC (2009) Plant virus emergence and evolution: Origins, new encounter scenarios, factors driving emergence, effects of changing world conditions, and prospects for control. Virus Res 141:113–130PubMedCrossRef
22.
Zurück zum Zitat Jovel J, Reski G, Rothenstein D, Ringel M, Frischmuth T, Jeske H (2004) Sida micrantha mosaic is associated with a complex infection of begomoviruses different from Abutilon mosaic virus. Arch Virol 149:829–841PubMedCrossRef Jovel J, Reski G, Rothenstein D, Ringel M, Frischmuth T, Jeske H (2004) Sida micrantha mosaic is associated with a complex infection of begomoviruses different from Abutilon mosaic virus. Arch Virol 149:829–841PubMedCrossRef
23.
Zurück zum Zitat Kaye AC, Moyer JW, Parks EJ, Carbone I, Cubeta MA (2011) Population genetic analysis of Tomato spotted wilt virus on peanut in North Carolina and Virginia. Phytopathology 101:147–153PubMedCrossRef Kaye AC, Moyer JW, Parks EJ, Carbone I, Cubeta MA (2011) Population genetic analysis of Tomato spotted wilt virus on peanut in North Carolina and Virginia. Phytopathology 101:147–153PubMedCrossRef
24.
Zurück zum Zitat Lefeuvre P, Martin DP, Hoareau M, Naze F, Delatte H, Thierry M, Varsani A, Becker N, Reynaud B, Lett JM (2007) Begomovirus ‘melting pot’ in the south-west Indian Ocean islands: Molecular diversity and evolution through recombination. J Gen Virol 88:3458–3468PubMedCrossRef Lefeuvre P, Martin DP, Hoareau M, Naze F, Delatte H, Thierry M, Varsani A, Becker N, Reynaud B, Lett JM (2007) Begomovirus ‘melting pot’ in the south-west Indian Ocean islands: Molecular diversity and evolution through recombination. J Gen Virol 88:3458–3468PubMedCrossRef
25.
Zurück zum Zitat Lefeuvre P, Lett JM, Varsani A, Martin DP (2009) Widely conserved recombination patterns among single-stranded DNA viruses. J Virol 83:2697–2707PubMedCrossRef Lefeuvre P, Lett JM, Varsani A, Martin DP (2009) Widely conserved recombination patterns among single-stranded DNA viruses. J Virol 83:2697–2707PubMedCrossRef
26.
Zurück zum Zitat Martin DP, Lemey P, Lott M, Moulton V, Posada D, Lefeuvre P (2010) RDP3: a flexible and fast computer program for analyzing recombination. Bioinformatics 26:2462–2463PubMedCrossRef Martin DP, Lemey P, Lott M, Moulton V, Posada D, Lefeuvre P (2010) RDP3: a flexible and fast computer program for analyzing recombination. Bioinformatics 26:2462–2463PubMedCrossRef
27.
Zurück zum Zitat Morales FJ, Anderson PK (2001) The emergence and dissemination of whitefly-transmitted geminiviruses in Latin America. Arch Virol 146:415–441PubMedCrossRef Morales FJ, Anderson PK (2001) The emergence and dissemination of whitefly-transmitted geminiviruses in Latin America. Arch Virol 146:415–441PubMedCrossRef
28.
Zurück zum Zitat Paprotka T, Metzler V, Jeske H (2010) The first DNA 1-like alpha satellites in association with New World begomoviruses in natural infections. Virology 404:148–157PubMedCrossRef Paprotka T, Metzler V, Jeske H (2010) The first DNA 1-like alpha satellites in association with New World begomoviruses in natural infections. Virology 404:148–157PubMedCrossRef
29.
Zurück zum Zitat Qazi J, Ilyas M, Mansoor S, Briddon RW (2007) Legume yellow mosaic viruses: genetically isolated begomoviruses. Mol Plant Pathol 8:343–348PubMedCrossRef Qazi J, Ilyas M, Mansoor S, Briddon RW (2007) Legume yellow mosaic viruses: genetically isolated begomoviruses. Mol Plant Pathol 8:343–348PubMedCrossRef
30.
Zurück zum Zitat Ribeiro SG, Ávila AC, Bezerra IC, Fernandes JJ, Faria JC, Lima MF, Gilbertson RL, Zambolim EM, Zerbini FM (1998) Widespread occurrence of tomato geminiviruses in Brazil, associated with the new biotype of the whitefly vector. Plant Dis 82:830CrossRef Ribeiro SG, Ávila AC, Bezerra IC, Fernandes JJ, Faria JC, Lima MF, Gilbertson RL, Zambolim EM, Zerbini FM (1998) Widespread occurrence of tomato geminiviruses in Brazil, associated with the new biotype of the whitefly vector. Plant Dis 82:830CrossRef
31.
Zurück zum Zitat Rojas MR, Gilbertson RL, Russell DR, Maxwell DP (1993) Use of degenerate primers in the polymerase chain reaction to detect whitefly-transmitted geminiviruses. Plant Dis 77:340–347CrossRef Rojas MR, Gilbertson RL, Russell DR, Maxwell DP (1993) Use of degenerate primers in the polymerase chain reaction to detect whitefly-transmitted geminiviruses. Plant Dis 77:340–347CrossRef
32.
Zurück zum Zitat Rojas MR, Hagen C, Lucas WJ, Gilbertson RL (2005) Exploiting chinks in the plant’s armor: evolution and emergence of geminiviruses. Annu Rev Phytopathol 43:361–394PubMedCrossRef Rojas MR, Hagen C, Lucas WJ, Gilbertson RL (2005) Exploiting chinks in the plant’s armor: evolution and emergence of geminiviruses. Annu Rev Phytopathol 43:361–394PubMedCrossRef
33.
Zurück zum Zitat Romay G, Chirinos D, Geraud-Pouey F, Desbiez C (2010) Association of an atypical alphasatellite with a bipartite New World begomovirus. Arch Virol 155:1843–1847PubMedCrossRef Romay G, Chirinos D, Geraud-Pouey F, Desbiez C (2010) Association of an atypical alphasatellite with a bipartite New World begomovirus. Arch Virol 155:1843–1847PubMedCrossRef
34.
Zurück zum Zitat Roye ME, McLaughlin WA, Nakhla MK, Maxwell DP (1997) Genetic diversity among geminiviruses associated with the weed species Sida spp., Macroptilium lathyroides, and Wissadula amplissima from Jamaica. Plant Dis 81:1251–1258CrossRef Roye ME, McLaughlin WA, Nakhla MK, Maxwell DP (1997) Genetic diversity among geminiviruses associated with the weed species Sida spp., Macroptilium lathyroides, and Wissadula amplissima from Jamaica. Plant Dis 81:1251–1258CrossRef
35.
Zurück zum Zitat Roye ME, Spence J, McLaughlin WA, Maxwell DP (1999) The common weed Macroptilium lathyroides is not a source of crop-infecting geminiviruses from Jamaica. Trop Agric 76:256–262 Roye ME, Spence J, McLaughlin WA, Maxwell DP (1999) The common weed Macroptilium lathyroides is not a source of crop-infecting geminiviruses from Jamaica. Trop Agric 76:256–262
36.
Zurück zum Zitat Rozas J (2009) DNA sequence polymorphism analysis using DnaSP. Methods Mol Biol 537:337–350PubMedCrossRef Rozas J (2009) DNA sequence polymorphism analysis using DnaSP. Methods Mol Biol 537:337–350PubMedCrossRef
37.
Zurück zum Zitat Sanz AI, Fraile A, García-Arenal F, Zhou X, Robinson DJ, Khalid S, Butt T, Harrison BD (2000) Multiple infection, recombination and genome relationships among begomovirus isolates found in cotton and other plants in Pakistan. J Gen Virol 81:1839–1849PubMed Sanz AI, Fraile A, García-Arenal F, Zhou X, Robinson DJ, Khalid S, Butt T, Harrison BD (2000) Multiple infection, recombination and genome relationships among begomovirus isolates found in cotton and other plants in Pakistan. J Gen Virol 81:1839–1849PubMed
38.
Zurück zum Zitat Seal SE, Jeger MJ, Van den Bosch F (2006) Begomovirus evolution and disease management. Adv Virus Res 67:297–316PubMedCrossRef Seal SE, Jeger MJ, Van den Bosch F (2006) Begomovirus evolution and disease management. Adv Virus Res 67:297–316PubMedCrossRef
39.
Zurück zum Zitat Silva SJC, Castillo-Urquiza GP, Hora-Júnior BT, Assunção IP, Lima GSA, Pio-Ribeiro G, Mizubuti ESG, Zerbini FM (2011) Species diversity, phylogeny and genetic variability of begomovirus populations infecting leguminous weeds in Northeastern Brazil. Plant Pathol. doi:10.1111/j.1365-3059.2011.02543.x Silva SJC, Castillo-Urquiza GP, Hora-Júnior BT, Assunção IP, Lima GSA, Pio-Ribeiro G, Mizubuti ESG, Zerbini FM (2011) Species diversity, phylogeny and genetic variability of begomovirus populations infecting leguminous weeds in Northeastern Brazil. Plant Pathol. doi:10.​1111/​j.​1365-3059.​2011.​02543.​x
40.
Zurück zum Zitat Tamura K, Peterson D, Peterson N, Stecher G, Nei M, Kumar S (2011) MEGA5: Molecular evolutionary genetics analysis using maximum likelihood, evolutionary distance, and maximum parsimony methods. Mol Biol Evol 28:2731–2739 Tamura K, Peterson D, Peterson N, Stecher G, Nei M, Kumar S (2011) MEGA5: Molecular evolutionary genetics analysis using maximum likelihood, evolutionary distance, and maximum parsimony methods. Mol Biol Evol 28:2731–2739
41.
Zurück zum Zitat Weir BS (1996) Genetic data analysis II: methods for discrete population genetic data. Sinauer Associated Inc, Sunderland, Massachusetts Weir BS (1996) Genetic data analysis II: methods for discrete population genetic data. Sinauer Associated Inc, Sunderland, Massachusetts
42.
Zurück zum Zitat Wyant PS, Gotthardt D, Schafer B, Krenz B, Jeske H (2011) The genomes of four novel begomoviruses and a new Sida micrantha mosaic virus strain from Bolivian weeds. Arch Virol 156:347–352PubMedCrossRef Wyant PS, Gotthardt D, Schafer B, Krenz B, Jeske H (2011) The genomes of four novel begomoviruses and a new Sida micrantha mosaic virus strain from Bolivian weeds. Arch Virol 156:347–352PubMedCrossRef
43.
Zurück zum Zitat Yahara T, Ooi K, Oshita S, Ishii I, Ikegami M (1998) Molecular evolution of a host-range gene in geminiviruses infecting asexual populations of Eupatorium makinoi. Genes Genet Syst 73:137–141PubMedCrossRef Yahara T, Ooi K, Oshita S, Ishii I, Ikegami M (1998) Molecular evolution of a host-range gene in geminiviruses infecting asexual populations of Eupatorium makinoi. Genes Genet Syst 73:137–141PubMedCrossRef
44.
Zurück zum Zitat Zerbini FM, Andrade EC, Barros DR, Ferreira SS, Lima ATM, Alfenas PF, Mello RN (2005) Traditional and novel strategies for geminivirus management in Brazil. Australas Plant Path 34:475–480CrossRef Zerbini FM, Andrade EC, Barros DR, Ferreira SS, Lima ATM, Alfenas PF, Mello RN (2005) Traditional and novel strategies for geminivirus management in Brazil. Australas Plant Path 34:475–480CrossRef
Metadaten
Titel
High genetic variability and recombination in a begomovirus population infecting the ubiquitous weed Cleome affinis in northeastern Brazil
verfasst von
Sarah J. C. da Silva
Gloria P. Castillo-Urquiza
Braz T. Hora Júnior
Iraildes P. Assunção
Gaus S. A. Lima
Gilvan Pio-Ribeiro
Eduardo S. G. Mizubuti
F. Murilo Zerbini
Publikationsdatum
01.12.2011
Verlag
Springer Vienna
Erschienen in
Archives of Virology / Ausgabe 12/2011
Print ISSN: 0304-8608
Elektronische ISSN: 1432-8798
DOI
https://doi.org/10.1007/s00705-011-1119-4

Weitere Artikel der Ausgabe 12/2011

Archives of Virology 12/2011 Zur Ausgabe

Leitlinien kompakt für die Innere Medizin

Mit medbee Pocketcards sicher entscheiden.

Seit 2022 gehört die medbee GmbH zum Springer Medizin Verlag

SGLT2-Inhibitoren und GLP-1-Rezeptoragonisten im Schlagabtausch

16.05.2024 DDG-Jahrestagung 2024 Kongressbericht

Wer hat die Nase vorn – SGLT2-Inhibitoren oder GLP-1-Rezeptoragonisten? Diese Frage diskutierten zwei Experten in einer Session auf dem diesjährigen Diabetes-Kongress.

Betalaktam-Allergie: praxisnahes Vorgehen beim Delabeling

16.05.2024 Pädiatrische Allergologie Nachrichten

Die große Mehrheit der vermeintlichen Penicillinallergien sind keine. Da das „Etikett“ Betalaktam-Allergie oft schon in der Kindheit erworben wird, kann ein frühzeitiges Delabeling lebenslange Vorteile bringen. Ein Team von Pädiaterinnen und Pädiatern aus Kanada stellt vor, wie sie dabei vorgehen.

Alphablocker schützt vor Miktionsproblemen nach der Biopsie

16.05.2024 alpha-1-Rezeptorantagonisten Nachrichten

Nach einer Prostatabiopsie treten häufig Probleme beim Wasserlassen auf. Ob sich das durch den periinterventionellen Einsatz von Alphablockern verhindern lässt, haben australische Mediziner im Zuge einer Metaanalyse untersucht.

Delir bei kritisch Kranken – Antipsychotika versus Placebo

16.05.2024 Delir nicht substanzbedingt Nachrichten

Um die Langzeitfolgen eines Delirs bei kritisch Kranken zu mildern, wird vielerorts auf eine Akuttherapie mit Antipsychotika gesetzt. Eine US-amerikanische Forschungsgruppe äußert jetzt erhebliche Vorbehalte gegen dieses Vorgehen. Denn es gibt neue Daten zum Langzeiteffekt von Haloperidol bzw. Ziprasidon versus Placebo.

Update Innere Medizin

Bestellen Sie unseren Fach-Newsletter und bleiben Sie gut informiert.