Aborted Lesions of a Pig Associated with Arcanobacterium abortisuis and the Immunohistochemical Features

Murakami, Satoshi; Ogawa, Akihiro; Azuma, Ryozo; Ohba, Takemi; Murata, Ryo

doi:10.1292/jvms.10-0469

Cited by 7 publications

(7 citation statements)

References 16 publications

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“…Actinomyces denticolens DSM 20671 T was used as the positive control. The preparations of those tissue samples using these immunohistochemical examinations had already been described [ 17 , 18 , 21 ]. The immunohistochemical analysis was performed as described by Murakami et al .…”

Section: Methodsmentioning

confidence: 99%

<i>Actinomyces denticolens</i> as a causative agent of actinomycosis in animals

Murakami

Kobayashi

Sekigawa

et al. 2018

The Journal of Veterinary Medical Science

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The name “Actinomyces suis” was applied to each actinomycete isolate from swine actinomycosis by Grässer in 1962 and Franke in 1973. Nevertheless, this specific species was not included in the “Approved List of Bacterial Name” due to absence of the type cultures. Therefore, “Actinomyces suis” based on the description of Franke 1973 has been considered as “species incertae sedis”. We isolated a number of Actinomyces strains from swine. The representative strains of them was designated as Chiba 101 that was closely similar to the description in “Actinomyces suis” reported by Franke in 1973. Interestingly, it was found that the biological characteristics of these strains were also very similar to those of Actinomyces denticolens. Furthermore, the average nucleotide identity (ANI) value between strain Chiba 101 and the type-strain of Actinomyces denticolens (=DSM 20671T) was found to be 99.95%. Sequences of the housekeeping genes and 16S rRNA gene showed 100% homology. These results strongly suggested that “Actinomyces suis” Franke 1973 is the same species as Actinomyces denticolens. Since actinomycosis caused by Actinomyces denticolens have been demonstrated in horses recently, it is necessary to recognize that Actinomyces denticolens is the pathogenic actinomycetes in broader range of animals.

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Section: Methodsmentioning

confidence: 99%

<i>Actinomyces denticolens</i> as a causative agent of actinomycosis in animals

Murakami

Kobayashi

Sekigawa

et al. 2018

The Journal of Veterinary Medical Science

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“…As a consequence, the malnourished piglets become weak, runted and usually die within the first few days of life (these are "minus variants"). Damage to the mammary gland caused by infection with T. pyogenes also contributes to increased aggressiveness of sows induced by the pain felt during the act of sucking (Waage et al 1999, Christensen et al 2007, Murakami et al 2011. …”

Section: T Pyogenes Infections Of Reproductive Tract In Sowsmentioning

confidence: 99%

Trueperella pyogenes infections in swine: clinical course and pathology

Jarosz¹,

Grądzki²,

Kalinowski³

2014

Polish Journal of Veterinary Sciences

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Trueperella pyogenes is an opportunistic pathogen causing purulent infections in pigs and other animal species. T. pyogenes infections in pigs are local and/or generalized depending on the immune status of the animals, their individual susceptibility and environmental factors. The occurrence of these infections on pig farms causes substantial economic losses in breeding and rearing. In sows from the breeding herd, the disease leads to infertility, embryonic death, abortion, and disorders of the menstrual cycle and lactation. Mastitis is the major cause of losses in piglets. Disorders of the musculoskeletal system, including inflammatory polyarthritis, fractures and degenerative joint disease results in the culling of animals with high breeding value. In other technological groups, multi-organ inflammations and movement disorders dominate, leading to a reduction of the slaughter value and elimination of pigs from breeding. Understanding of the clinical and pathological aspects of T. pyogenes infections in pigs will enable the development of effective methods of combating this disease on pig farms.

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“…Compared with methods based on the SRY or ZF (also known as CREBZF ) gene,, this assay is more simple and reliable for canine sex identification, because it needs neither additional positive control nor restriction endonuclease steps and can be used in many research fields such as embryo implantation, sex‐linked genetic disorders and genotyping.…”

Section: Commentsmentioning

confidence: 99%