The Experts below are selected from a list of 165 Experts worldwide ranked by ideXlab platform
Raphael Guatteo - One of the best experts on this subject based on the ideXlab platform.
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Atypical actinobacillosis affecting hind limbs and lungs in a single beef cattle herd
Journal of Veterinary Internal Medicine, 2019Co-Authors: Anne Relun, Henrik Christensen, Nora Cesbron, Patrick Bourdeau, Laetitia Dorso, Thomas Brement, Sebastien Assie, Raphael GuatteoAbstract:Actinobacillosis usually is a sporadic infection that affects the tongue in cattle (“wooden tongue”) with possible spread to the digestive tract. Two 4‐year‐old Rouge‐des‐Prés cows from a single French beef herd were referred for chronic (2‐6 months) swelling and cutaneous nodules in the distal hind limbs. In addition to cutaneous signs, physical examination disclosed cachexia, lameness, lymphadenitis of the hind limbs, and pneumonia in both cows. Cytologic examination of direct skin smears was inconclusive, and no parasites were observed in examination of multiple skin scrapings. Histopathological examination of skin and lung biopsy specimens identified chronic, diffuse, severe pyogranulomatous dermatitis, associated with Splendore‐Hoeppli phenomenon and intralesional Gram‐negative bacteria. Cultures from skin, lymph nodes, and lungs (both cows were euthanized for welfare reasons) identified a Pasteurellaceae organism, confirmed as Actinobacillus lignieresii by partial sequencing of the rpoB gene. This report emphasizes that actinobacillosis can appear as a small outbreak in cattle with cutaneous and respiratory signs.
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atypical actinobacillosis affecting hind limbs and lungs in a single beef cattle herd
Journal of Veterinary Internal Medicine, 2018Co-Authors: Anne Relun, Henrik Christensen, Nora Cesbron, Patrick Bourdeau, Laetitia Dorso, Thomas Brement, Sebastien Assie, Raphael GuatteoAbstract:Actinobacillosis usually is a sporadic infection that affects the tongue in cattle ("wooden tongue") with possible spread to the digestive tract. Two 4-year-old Rouge-des-Pres cows from a single French beef herd were referred for chronic (2-6 months) swelling and cutaneous nodules in the distal hind limbs. In addition to cutaneous signs, physical examination disclosed cachexia, lameness, lymphadenitis of the hind limbs, and pneumonia in both cows. Cytologic examination of direct skin smears was inconclusive, and no parasites were observed in examination of multiple skin scrapings. Histopathological examination of skin and lung biopsy specimens identified chronic, diffuse, severe pyogranulomatous dermatitis, associated with Splendore-Hoeppli phenomenon and intralesional Gram-negative bacteria. Cultures from skin, lymph nodes, and lungs (both cows were euthanized for welfare reasons) identified a Pasteurellaceae organism, confirmed as Actinobacillus lignieresii by partial sequencing of the rpoB gene. This report emphasizes that actinobacillosis can appear as a small outbreak in cattle with cutaneous and respiratory signs.
Henrik Christensen - One of the best experts on this subject based on the ideXlab platform.
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Atypical actinobacillosis affecting hind limbs and lungs in a single beef cattle herd
Journal of Veterinary Internal Medicine, 2019Co-Authors: Anne Relun, Henrik Christensen, Nora Cesbron, Patrick Bourdeau, Laetitia Dorso, Thomas Brement, Sebastien Assie, Raphael GuatteoAbstract:Actinobacillosis usually is a sporadic infection that affects the tongue in cattle (“wooden tongue”) with possible spread to the digestive tract. Two 4‐year‐old Rouge‐des‐Prés cows from a single French beef herd were referred for chronic (2‐6 months) swelling and cutaneous nodules in the distal hind limbs. In addition to cutaneous signs, physical examination disclosed cachexia, lameness, lymphadenitis of the hind limbs, and pneumonia in both cows. Cytologic examination of direct skin smears was inconclusive, and no parasites were observed in examination of multiple skin scrapings. Histopathological examination of skin and lung biopsy specimens identified chronic, diffuse, severe pyogranulomatous dermatitis, associated with Splendore‐Hoeppli phenomenon and intralesional Gram‐negative bacteria. Cultures from skin, lymph nodes, and lungs (both cows were euthanized for welfare reasons) identified a Pasteurellaceae organism, confirmed as Actinobacillus lignieresii by partial sequencing of the rpoB gene. This report emphasizes that actinobacillosis can appear as a small outbreak in cattle with cutaneous and respiratory signs.
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atypical actinobacillosis affecting hind limbs and lungs in a single beef cattle herd
Journal of Veterinary Internal Medicine, 2018Co-Authors: Anne Relun, Henrik Christensen, Nora Cesbron, Patrick Bourdeau, Laetitia Dorso, Thomas Brement, Sebastien Assie, Raphael GuatteoAbstract:Actinobacillosis usually is a sporadic infection that affects the tongue in cattle ("wooden tongue") with possible spread to the digestive tract. Two 4-year-old Rouge-des-Pres cows from a single French beef herd were referred for chronic (2-6 months) swelling and cutaneous nodules in the distal hind limbs. In addition to cutaneous signs, physical examination disclosed cachexia, lameness, lymphadenitis of the hind limbs, and pneumonia in both cows. Cytologic examination of direct skin smears was inconclusive, and no parasites were observed in examination of multiple skin scrapings. Histopathological examination of skin and lung biopsy specimens identified chronic, diffuse, severe pyogranulomatous dermatitis, associated with Splendore-Hoeppli phenomenon and intralesional Gram-negative bacteria. Cultures from skin, lymph nodes, and lungs (both cows were euthanized for welfare reasons) identified a Pasteurellaceae organism, confirmed as Actinobacillus lignieresii by partial sequencing of the rpoB gene. This report emphasizes that actinobacillosis can appear as a small outbreak in cattle with cutaneous and respiratory signs.
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Final classification of Bisgaard taxon 9 as Actinobacillus arthritidis sp. nov. and recognition of a novel genomospecies for equine strains of Actinobacillus lignieresii
International Journal of Systematic and Evolutionary Microbiology, 2002Co-Authors: Henrik Christensen, Øystein Angen, Magne Bisgaard, John Elmerdahl OlsenAbstract:Phenotypic characterization of bacteria from diseased and healthy horses identified 18 isolates as Bisgaard taxon 9 and 11 isolates as Actinobacillus lignieresii. All strains of taxon 9 were alpha-galactosidase- and raffinose-positive and showed variable fermentation of (+)L-arabinose and (-)D-sorbitol. Strains of A. lignieresii were negative for these characteristics, with the exception of raffinose. Two strains from the (-)D-sorbitol-negative group of taxon 9 showed a 16S rRNA similarity of 99-6%, while 99.5% similarity was found between two strains of the (-)D-sorbitol-positive group. DNA-DNA hybridization between the two strains representing the (-)D-sorbitol-negative group showed 98% binding, and their closest relationship was to a strain of A. lignieresii (64%). The two strains of the (-)D-sorbitol-positive group showed 83% binding and were related to the (-)D-sorbitol-negative group at a 76% DNA binding level. Actinobacillus arthritidis sp. nov. is proposed for 12 strains of the (-)D-sorbitol-positive group. Actinobacillus genomospecies 2 is suggested for the six strains of the (-)D-sorbitol-negative group. Phenotypically, strains of A. arthritidis and Actinobacillus genomospecies 2 differ in (-)D-sorbitol fermentation and can be separated from Actinobacillus equuli by being trehalose-negative, while a positive reaction for alpha-galactosidase separates the taxa from A. lignieresii. The type strain of A. arthritidis, CCUG 24862T, was isolated from a joint of a horse. Three equine isolates of A. lignieresii that could not be separated from the type strain by means of phenotypic characteristics showed 98.6-100% 16S rRNA similarity, but only 96.4-96.7% similarity to the type strain. DNA-DNA hybridization between two strains of this group showed 92% binding but only 70% binding to the type strain of A. lignieresii. Consequently, these equine isolates of A. lignieresii represent a new genomospecies of Actinobacillus, suggested as genomospecies 1 because phenotypic characteristics are not presently available to separate it from the type strain of A. lignieresii.
Anne Relun - One of the best experts on this subject based on the ideXlab platform.
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Atypical actinobacillosis affecting hind limbs and lungs in a single beef cattle herd
Journal of Veterinary Internal Medicine, 2019Co-Authors: Anne Relun, Henrik Christensen, Nora Cesbron, Patrick Bourdeau, Laetitia Dorso, Thomas Brement, Sebastien Assie, Raphael GuatteoAbstract:Actinobacillosis usually is a sporadic infection that affects the tongue in cattle (“wooden tongue”) with possible spread to the digestive tract. Two 4‐year‐old Rouge‐des‐Prés cows from a single French beef herd were referred for chronic (2‐6 months) swelling and cutaneous nodules in the distal hind limbs. In addition to cutaneous signs, physical examination disclosed cachexia, lameness, lymphadenitis of the hind limbs, and pneumonia in both cows. Cytologic examination of direct skin smears was inconclusive, and no parasites were observed in examination of multiple skin scrapings. Histopathological examination of skin and lung biopsy specimens identified chronic, diffuse, severe pyogranulomatous dermatitis, associated with Splendore‐Hoeppli phenomenon and intralesional Gram‐negative bacteria. Cultures from skin, lymph nodes, and lungs (both cows were euthanized for welfare reasons) identified a Pasteurellaceae organism, confirmed as Actinobacillus lignieresii by partial sequencing of the rpoB gene. This report emphasizes that actinobacillosis can appear as a small outbreak in cattle with cutaneous and respiratory signs.
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atypical actinobacillosis affecting hind limbs and lungs in a single beef cattle herd
Journal of Veterinary Internal Medicine, 2018Co-Authors: Anne Relun, Henrik Christensen, Nora Cesbron, Patrick Bourdeau, Laetitia Dorso, Thomas Brement, Sebastien Assie, Raphael GuatteoAbstract:Actinobacillosis usually is a sporadic infection that affects the tongue in cattle ("wooden tongue") with possible spread to the digestive tract. Two 4-year-old Rouge-des-Pres cows from a single French beef herd were referred for chronic (2-6 months) swelling and cutaneous nodules in the distal hind limbs. In addition to cutaneous signs, physical examination disclosed cachexia, lameness, lymphadenitis of the hind limbs, and pneumonia in both cows. Cytologic examination of direct skin smears was inconclusive, and no parasites were observed in examination of multiple skin scrapings. Histopathological examination of skin and lung biopsy specimens identified chronic, diffuse, severe pyogranulomatous dermatitis, associated with Splendore-Hoeppli phenomenon and intralesional Gram-negative bacteria. Cultures from skin, lymph nodes, and lungs (both cows were euthanized for welfare reasons) identified a Pasteurellaceae organism, confirmed as Actinobacillus lignieresii by partial sequencing of the rpoB gene. This report emphasizes that actinobacillosis can appear as a small outbreak in cattle with cutaneous and respiratory signs.
Thomas Brement - One of the best experts on this subject based on the ideXlab platform.
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Atypical actinobacillosis affecting hind limbs and lungs in a single beef cattle herd
Journal of Veterinary Internal Medicine, 2019Co-Authors: Anne Relun, Henrik Christensen, Nora Cesbron, Patrick Bourdeau, Laetitia Dorso, Thomas Brement, Sebastien Assie, Raphael GuatteoAbstract:Actinobacillosis usually is a sporadic infection that affects the tongue in cattle (“wooden tongue”) with possible spread to the digestive tract. Two 4‐year‐old Rouge‐des‐Prés cows from a single French beef herd were referred for chronic (2‐6 months) swelling and cutaneous nodules in the distal hind limbs. In addition to cutaneous signs, physical examination disclosed cachexia, lameness, lymphadenitis of the hind limbs, and pneumonia in both cows. Cytologic examination of direct skin smears was inconclusive, and no parasites were observed in examination of multiple skin scrapings. Histopathological examination of skin and lung biopsy specimens identified chronic, diffuse, severe pyogranulomatous dermatitis, associated with Splendore‐Hoeppli phenomenon and intralesional Gram‐negative bacteria. Cultures from skin, lymph nodes, and lungs (both cows were euthanized for welfare reasons) identified a Pasteurellaceae organism, confirmed as Actinobacillus lignieresii by partial sequencing of the rpoB gene. This report emphasizes that actinobacillosis can appear as a small outbreak in cattle with cutaneous and respiratory signs.
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atypical actinobacillosis affecting hind limbs and lungs in a single beef cattle herd
Journal of Veterinary Internal Medicine, 2018Co-Authors: Anne Relun, Henrik Christensen, Nora Cesbron, Patrick Bourdeau, Laetitia Dorso, Thomas Brement, Sebastien Assie, Raphael GuatteoAbstract:Actinobacillosis usually is a sporadic infection that affects the tongue in cattle ("wooden tongue") with possible spread to the digestive tract. Two 4-year-old Rouge-des-Pres cows from a single French beef herd were referred for chronic (2-6 months) swelling and cutaneous nodules in the distal hind limbs. In addition to cutaneous signs, physical examination disclosed cachexia, lameness, lymphadenitis of the hind limbs, and pneumonia in both cows. Cytologic examination of direct skin smears was inconclusive, and no parasites were observed in examination of multiple skin scrapings. Histopathological examination of skin and lung biopsy specimens identified chronic, diffuse, severe pyogranulomatous dermatitis, associated with Splendore-Hoeppli phenomenon and intralesional Gram-negative bacteria. Cultures from skin, lymph nodes, and lungs (both cows were euthanized for welfare reasons) identified a Pasteurellaceae organism, confirmed as Actinobacillus lignieresii by partial sequencing of the rpoB gene. This report emphasizes that actinobacillosis can appear as a small outbreak in cattle with cutaneous and respiratory signs.
Laetitia Dorso - One of the best experts on this subject based on the ideXlab platform.
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Atypical actinobacillosis affecting hind limbs and lungs in a single beef cattle herd
Journal of Veterinary Internal Medicine, 2019Co-Authors: Anne Relun, Henrik Christensen, Nora Cesbron, Patrick Bourdeau, Laetitia Dorso, Thomas Brement, Sebastien Assie, Raphael GuatteoAbstract:Actinobacillosis usually is a sporadic infection that affects the tongue in cattle (“wooden tongue”) with possible spread to the digestive tract. Two 4‐year‐old Rouge‐des‐Prés cows from a single French beef herd were referred for chronic (2‐6 months) swelling and cutaneous nodules in the distal hind limbs. In addition to cutaneous signs, physical examination disclosed cachexia, lameness, lymphadenitis of the hind limbs, and pneumonia in both cows. Cytologic examination of direct skin smears was inconclusive, and no parasites were observed in examination of multiple skin scrapings. Histopathological examination of skin and lung biopsy specimens identified chronic, diffuse, severe pyogranulomatous dermatitis, associated with Splendore‐Hoeppli phenomenon and intralesional Gram‐negative bacteria. Cultures from skin, lymph nodes, and lungs (both cows were euthanized for welfare reasons) identified a Pasteurellaceae organism, confirmed as Actinobacillus lignieresii by partial sequencing of the rpoB gene. This report emphasizes that actinobacillosis can appear as a small outbreak in cattle with cutaneous and respiratory signs.
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atypical actinobacillosis affecting hind limbs and lungs in a single beef cattle herd
Journal of Veterinary Internal Medicine, 2018Co-Authors: Anne Relun, Henrik Christensen, Nora Cesbron, Patrick Bourdeau, Laetitia Dorso, Thomas Brement, Sebastien Assie, Raphael GuatteoAbstract:Actinobacillosis usually is a sporadic infection that affects the tongue in cattle ("wooden tongue") with possible spread to the digestive tract. Two 4-year-old Rouge-des-Pres cows from a single French beef herd were referred for chronic (2-6 months) swelling and cutaneous nodules in the distal hind limbs. In addition to cutaneous signs, physical examination disclosed cachexia, lameness, lymphadenitis of the hind limbs, and pneumonia in both cows. Cytologic examination of direct skin smears was inconclusive, and no parasites were observed in examination of multiple skin scrapings. Histopathological examination of skin and lung biopsy specimens identified chronic, diffuse, severe pyogranulomatous dermatitis, associated with Splendore-Hoeppli phenomenon and intralesional Gram-negative bacteria. Cultures from skin, lymph nodes, and lungs (both cows were euthanized for welfare reasons) identified a Pasteurellaceae organism, confirmed as Actinobacillus lignieresii by partial sequencing of the rpoB gene. This report emphasizes that actinobacillosis can appear as a small outbreak in cattle with cutaneous and respiratory signs.
