Retrospective study on equine uterine fungal isolates and antifungal susceptibility patterns (1999–2011)

Beltaire, K. A.; Cheong, Soon Hon; Silva, M. A. Coutinho da

doi:10.1111/j.2042-3306.2012.00608.x

Cited by 26 publications

(20 citation statements)

References 13 publications

(42 reference statements)

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“…Diagnosis is based on the presence of fungal elements and inflammatory cells in endometrial smears. Yeast appears as small, round, single cell, brown to black spores on cytological smears obtained from infected mares, whereas molds have long filamentous hyphae [4,71]. It has suggested that the hyphae are more invasive than yeast and, consequently, more difficult to treat and eliminate.…”

Section: Fungal Endometritismentioning

confidence: 99%

“…Candida albicans can be present in both yeast and hyphal forms and therefore can penetrate deeper into the endometrium and/or growth intracellularly. However, in endometrial cytology and histology used to diagnose fungal endometritis, fungal elements only are visualized in the lumen of the uterus and not penetrate deeper in the endometrium [71].…”

Section: Fungal Endometritismentioning

confidence: 99%

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Infection and Infertility in Mares

Satué¹,

Gardón²

2016

Genital Infections and Infertility

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In cyclic mares, the uterine environment can easily disturbed due to inflammatory processes that occur secondary to microbial invasion. Different aerobic and anaerobic bacteria can enter the uterus during natural mating, artificial insemination, reproductive examination or parturition. The postpartum period is a critical phase since due to relaxation of the uterus and cervix may favor recurrent infections air intake pneumovagina or urine collection in mares with poor perineal conformation. Infections are mainly caused by opportunistic or commensal microorganisms, such as Streptococcus zooepidemicus, hemolytic Escherichia coli and Staphylococcus aureus. Other microorganisms like Taylorella equigenitalis, Klebsiella pneumoniae and Pseudomona aeruginosa are transmitted through venereal route. Regarding to the fungal endometritis, the most common fungi include Candida and Aspergillus. These microorganisms cause infertility as a result of repeated inseminations during the breeding season and proliferate when the natural immune system is weakened in mares with advanced age and multiparous, or after repeated use of antibiotics. Indeed, in susceptible mare to endometritis, uterine defense mechanisms involving phagocytosis and opsonization by neutrophils, local synthesis of antibodies, mucociliary activity, vascular and myoelectric activity permeability are compromised, leading to fluid accumulation in response to inflammation and infertility.

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Section: Fungal Endometritismentioning

confidence: 99%

Section: Fungal Endometritismentioning

confidence: 99%

Infection and Infertility in Mares

Satué¹,

Gardón²

2016

Genital Infections and Infertility

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“…Recent advances in equine reproduction were the focus of several papers in the EVJ supplement. Coutinho da Silva presented on a retrospective study of 102 fungal isolates from 92 uterine samples with antifungal susceptibility patterns over 12 years (1999–2011) . It was observed that yeast isolates (mostly Candida spp.)…”

Section: Reproductionmentioning

confidence: 99%

Science in brief: Clinical highlights from the American Association of Equine Practitioners' 58th Annual Convention and Equine Veterinary Journal Supplement 43

Collatos¹,

Pearson

2013

Equine Veterinary Journal

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“…are rarely isolated in conjunction with placentitis or abortion, in agreement with the low incidence of this organism in mare reproductive swabs (Hong et al, 1993a;Whitwell, 1988;Albihn et al, 2003;Rickets, 2011;Beltaire et al, 2012). A recent case description of Candida (Meyerozyma) guilliermondii described changes in the placenta similar to other mycotic placental lesions with a thick, brown, gritty covering of the chorionic surface centred mainly around the cervical star region (Stefanetti et al, 2014).…”

Section: Fungalmentioning

confidence: 73%

“…is one of the most common fungi isolated in many areas of the world (Albihn et al, 2003;Rickets, 2011;Beltaire et al, 2012). This low incidence is reflected in the relatively uncommon association of fungi ( Aspergillus spp., Mucor spp., and Absidia spp.)…”

Section: Fungalmentioning

confidence: 99%

Pathology of equine amnionitis and foetal lLoss: clinical and experimental studies

Todhunter¹

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Detailed experience in identifying the appearance of setal fragments which is highlighted under toluidine blue staining allowed in depth examination of tissues from equine abortions submitted for examination in 2012. Five cases were found in which a caterpillar setal fragment was found in the allantochorion confirming that setal fragments migrate from field exposure as well as experimental exposure to processionary caterpillars.The experiments in this thesis have shown histologically for the first time, the ability of Processionary caterpillar setae to penetrate the maternal gut wall and migrate directly into the uterus and placental tissues. This is considered to be the most likely means of translocation of bacteria to the foetal membranes. The direct, rapid migration of setae in as little as two days from ingestion from the gut to the placenta facilitates bacterial infection.Bacteria present in the mare's gut likely attach to migrating setal fragments and translocate through the gut wall, the uterus and the foetal membranes in which they subsequently colonize. Incomplete migration of setal fragments may account for the focal mucoid placentitis induced when mares were exposed in early gestation. Bacterial colonization of 5 the foetal membranes and/or foetus may cause foetal compromise or death and eventual abortion.The variety of manifestations of EAFL due to the migration of setal fragments ranging from acute abortion, chronic active placentitis, stillbirth, compromised preterm and full term foals, and focal mucoid placentitis have a significant impact on the breeding of horses and ultimately the racing industry in Australia.6

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Retrospective study on equine uterine fungal isolates and antifungal susceptibility patterns (1999–2011)

Cited by 26 publications

References 13 publications

Infection and Infertility in Mares

Infection and Infertility in Mares

Science in brief: Clinical highlights from the American Association of Equine Practitioners' 58th Annual Convention and Equine Veterinary Journal Supplement 43

Pathology of equine amnionitis and foetal lLoss: clinical and experimental studies

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