Trichomonads of Veterinary Importance

Bondurant, Robert; Honigberg, B. M.

doi:10.1016/b978-0-12-426019-1.50007-6

Cited by 63 publications

(71 citation statements)

References 152 publications

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“…Although, Pirali-kheirabadi et al (2008) found that low virulence strains caused trichomonosis in Center of Iran. Strain variation as an explanation of differential virulence for avian trichomonads is well established (BonDurant and Honigberg 1994) and may contribute to the fluctuating levels of infection, morbidity and mortality observed within pigeon subpopulations. Virulence also depends on other factors such as previous exposure to the pathogen (protective immunity) and individual immunocompetence.…”

Section: Discussionmentioning

confidence: 99%

Prevalence and pathological lesion of Trichomonas gallinae in pigeons of Iran

et al. 2011

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This research was conducted to determine the prevalence and pathological lesion of Trichomonas gallinae in pigeons in the northeast part of Iran. Wet mount preparations from the oral cavity/crop of 418 pigeons (Columba livia) captured from various locations in Khorasan province analyzed for T. gallinae by Giemsa's staining between April 2008 and June 2009. A total of 418 pigeons, 37.32% (n = 156) were infected with T. gallinae. Macroscopically, the oropharynx of infected pigeons has white, caseous lesions or stomatitis. Microscopically, there was moderate congestion with infiltration of mononuclear inflammatory cells in the lamina propria of pharynx, hyperplasia of mucous cells in epithelia of trachea with infiltration of mononuclear inflammatory cells, numerous granulomatous foci in the livers with many multinucleated giant cells, tubulointerstitial nephritis with multifocal to diffuse infiltration of mostly mononuclear inflammatory cells in the kidneys. In the present paper we have described for the first time the co-existence of both genotypes of T. gallinae based on pathological lesions in this area.

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Section: Discussionmentioning

confidence: 99%

Prevalence and pathological lesion of Trichomonas gallinae in pigeons of Iran

et al. 2011

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“…It has worldwide distribution, being harbored by a variety of gallinaceous birds, including chicken, turkey, guinea fowl, quail, and chukar partridge (Bondurant & Honigberg 1994).…”

Section: Discussionmentioning

confidence: 99%

Morphologic aspects of Tetratrichomonas didelphidis isolated from opossums Didelphis marsupialis and Lutreolina crassicaudata

Tasca

Carli

Glock

et al. 2001

Mem. Inst. Oswaldo Cruz

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“…Based on these morphologic findings the trichomonad was identified as T. foetus. 6 Autopsy revealed severe meningoencephalitis and ventriculitis. Histopathologic examination of the meninges showed trichomonads, with evidence of damage by inflammatory response (Figure 1c).…”

Section: Case Reportmentioning

confidence: 99%

Trichomonas foetus meningoencephalitis after allogeneic peripheral blood stem cell transplantation

Okamoto

Wakui

Kobayashi

et al. 1998

Bone Marrow Transplant

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Summary:A 34-year-old man with refractory acute myelogenous leukemia underwent allogeneic peripheral blood stem cell transplantation (PBSCT) from his HLA-matched sibling. Engraftment was prompt and no acute GVHD developed. However, high fever persisted even after engraftment, and the patient developed headache, diplopia, vertigo and nuchal rigidity on day 20 posttransplant. Cerebrospinal fluid (CSF) showed pleocytosis with no detectable microorganisms. Despite therapy with broad-spectrum antibiotics, antifungal agents and antituberculous drugs, he developed rapid mental deterioration with seizures and died on day 40. Just prior to his death, trichomonads were isolated from both CSF and urine. Scanning electron microscopic examination identified the trichomonad as Trichomonas foetus. At autopsy, trichomonads were detected histopathologically in an area involving meningoencephalitis. To our knowledge, this is the first case of T. foetus meningoencephalitis in a recipient of allogeneic PBSCT and, more importantly, the first human case of T. foetus infection. Keywords: trichomonad; meningitis; infection; allogeneic transplantation; peripheral blood stem cell Trichomoniasis is a commonly reported sexually transmitted disease occurring both in animals and humans. Trichomonads are known to have strict host specificity, and Trichomonas foetus is associated in nature only with bovine diseases such as vaginitis. However, T. foetus infection in humans has never been reported. 1,2Allogeneic peripheral blood stem cell transplantation (alloPBSCT) is increasingly employed in treating hematologic malignancies. Reported experience consistently shows rapid recovery of both granulocytes and platelets after alloPBSCT. However, data on immune recovery and infec- 3-5 We describe the first case of T. foetus meningoencephalitis occurring in a severely immunosuppressed patient following alloPBSCT. To the best of our knowledge, this occurrence is also the first case of T. foetus infection in humans. Case reportA 34-year-old man was diagnosed with AML in March 1995. Complete remission was achieved in May, but the leukemia subsequently became resistant to chemotherapy. The patient was referred to Keio University Hospital for marrow transplantation in February 1996. On admission he was neutropenic and subsequently developed necrotizing gingivitis and perianal abscess. These infections were treated successfully with broad-spectrum antibiotics, and he became afebrile. He then received BU (16 mg/kg) and CY (120 mg/kg) as conditioning. Non-T cell-depleted PBSC with 5.1 × 10 6 CD34-positive cells/kg of patient body weight were infused 2 days after completion of CY. PBSC had been collected from his HLA-matched brother using G-CSF. Cyclosporine as GVHD prophylaxis and G-CSF were given after transplantation. Engraftment was prompt, and the ANC reached 500/l on day 8. No acute GVHD occurred. BM examination on day 13 showed normo cellular marrow with trilineage hematopoiesis and no leukemic cells.The patient became febrile during conditioning and was...

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Trichomonads of Veterinary Importance

Cited by 63 publications

References 152 publications

Prevalence and pathological lesion of Trichomonas gallinae in pigeons of Iran

Prevalence and pathological lesion of Trichomonas gallinae in pigeons of Iran

Morphologic aspects of Tetratrichomonas didelphidis isolated from opossums Didelphis marsupialis and Lutreolina crassicaudata

Trichomonas foetus meningoencephalitis after allogeneic peripheral blood stem cell transplantation

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