Nachweis von <i>Chlamydia psittaci</i> in Vaginalausfluß von Rindern: Eine notwendige Erweiterung der bakteriologischen Diagnostik zur ätiologischen Klärung von Fruchtbarkeitsstörungen beim weiblichen Rind

Wittenbrink, Max M.; Kirpal, G; Thiele, D.; Fischer, Dominik; Krauss, H; Bisping, W

doi:10.1111/j.1439-0450.1994.tb00255.x

Cited by 4 publications

(2 citation statements)

References 17 publications

(8 reference statements)

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“…Alternatively, this animal may have had a subclinical chlamydial infection with the agent in the blood, which is also contained in brain tissue. Chlamydia are occasionally isolated from cattle suffering other infections (Kaltenboeck and others 1992, Wittenbrink and others 1994). Finally, the sequence was 100 per cent identical with the omp1 sequence of C psittaci serovar 1, and not with the C pecorum species which would be expected in cattle (Perez‐Martinez and Storz 1985, Kaltenböck and Storz 1993).…”

Section: Discussionmentioning

confidence: 99%

Neuropathological and aetiological studies of sporadic non‐suppurative meningoencephalomyelitis of cattle

et al. 1998

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Sporadically occurring non-suppurative encephalitis appears to be a frequent condition of Swiss cattle. Fifty-one such cases diagnosed over a period of 10 years were examined retrospectively to investigate whether they constituted one or more distinct diseases, and to search for aetiological agents. Three cases were characterised by periventricular granulomatous encephalitis, and most probably represented a different disease, but the remaining 48 cases had disseminated non-suppurative encephalitis with widespread neuronal changes. Neuronal degeneration was very marked in the hippocampus of 10 cases and in the cerebellar Purkinje cells of 11. It was thought that the latter cases represented morphological variations of the same disease rather than a different disease because of their overlapping morphological features. The 48 cases had the following features in common: the disease had primarily neurological signs affecting mostly adult cattle, it was a sporadic condition, and there was a clear tendency for it to have a subacute to chronic course. Polymerase chain reaction (PCR) amplification for chlamydial DNA was negative except in one of 32 specimens, and immunohistochemistry did not demonstrate the presence of chlamydial antigens either in the one PCR-positive case or in the other cases examined. Immunohistochemistry for rabies virus, Borna disease virus, and central European tickborne encephalitis virus was negative. In four cases, immunolabelled cells were found in the lesions with antibodies against paramyxovirus antigens.

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Section: Discussionmentioning

confidence: 99%

Neuropathological and aetiological studies of sporadic non‐suppurative meningoencephalomyelitis of cattle

et al. 1998

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“…In a further study, a total of 49 aborted foals (fetal lung, liver and spleen) from Lower Saxony, Germany, was examined for the presence of chlamydiae by inoculation of buffalo‐green‐monkey cells, antigen‐capture‐ elisa , and polymerase chain reaction according to methods described by Wittenbrink and others (1994). Paired serum samples from 51 aborting mares, including the 49 from which the aborted foals had been examined, were taken immediately after abortion and 19 days later.…”

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Absence of chlamydia as an aetiological factor in aborting mares

et al. 1997

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PCR-based detection of chlamydial infection in swine and subsequent PCR-coupled genotyping of chlamydial omp1-gene amplicons by DNA-hybridization, RFLP-analysis, and nucleotide sequence analysis

2000

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Lung and intestine of 49 pigs with respiratory diseases and endocervical swabs from 205 sows with reproductive disorders were investigated for chlamydial infection by polymerase chain reaction. PCR primers targeted DNA sequences on the chlamydial omp1 or omp2 genes. PCR amplicons were generated from 49.0% of pigs with respiratory disease, from 60.0% of sows with reproductive disorders, from 24.5% of respiratory healthy controls, but from no endocervical swabs from fertile sows. By DNA hybridization, a high prevalence of mixed infections with Chlamydophila abortus and Chlamydia suis in the porcine lung and intestine was found and confirmed by RFLP and nucleotide analysis. Of the omp1-PCR amplicons from endocervical swabs 81.3% were identified as Chlamydophila abortus, indicating an association of this chlamydial species with reproductive disorders in sows. Nucleotide sequence analysis of omp1-amplicons identified as deriving from Chlamydia suis shared a maximum of 82.7% homology with the reference strain S45.

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Nachweis von Chlamydia psittaci in Vaginalausfluß von Rindern: Eine notwendige Erweiterung der bakteriologischen Diagnostik zur ätiologischen Klärung von Fruchtbarkeitsstörungen beim weiblichen Rind

Cited by 4 publications

References 17 publications

Neuropathological and aetiological studies of sporadic non‐suppurative meningoencephalomyelitis of cattle

Neuropathological and aetiological studies of sporadic non‐suppurative meningoencephalomyelitis of cattle

Absence of chlamydia as an aetiological factor in aborting mares

PCR-based detection of chlamydial infection in swine and subsequent PCR-coupled genotyping of chlamydial omp1-gene amplicons by DNA-hybridization, RFLP-analysis, and nucleotide sequence analysis

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