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Marais YA, Mason D, Barnard A, Saaiman CR, Els HC, Kluge J, Glass AJ, Wright CA, Schubert PT. Placental Syphilis: A Comprehensive Review of Routine Histomorphology, HIV Co-infection, Penicillin Treatment, Immunohistochemistry, and Polymerase Chain Reaction. Fetal Pediatr Pathol 2023; 42:870-890. [PMID: 37668986 DOI: 10.1080/15513815.2023.2253309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 08/24/2023] [Accepted: 06/28/2023] [Indexed: 09/06/2023]
Abstract
Introduction: Placental examination is valuable for diagnosing congenital syphilis, but the classic histological triad is not always observed. This study aimed to identify additional morphological clues, evaluate the sensitivity of IHC and qPCR, and investigate the impact of HIV co-infection and penicillin treatment on placental morphology. Materials and methods: Two hundred and fifteen placental specimens with treponemal infection were reviewed. Morphological findings, IHC, and qPCR results were analyzed. Results: Chronic villitis (94%), acute chorioamnionitis (91.6%), and villous immaturity (65.6%) were the most common abnormalities. HIV co-infection and penicillin treatment were associated with reduced frequencies of inflammatory lesions. IHC and qPCR exhibited sensitivities of 74.4 and 25.8%, respectively, confirming the diagnosis in 42 cases with negative or unknown serology. Conclusion: Villitis, chorioamnionitis, and villous immaturity were identified as the predominant placental abnormalities. HIV co-infection and penicillin treatment can impact morphology and hamper the diagnosis. IHC and q-PCR are valuable adjuncts when serology is negative.
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Affiliation(s)
- Yolandi Anne Marais
- Division of Anatomical Pathology, Faculty of Medicine and Health Sciences, Tygerberg Hospital, National Health Laboratory Service, Stellenbosch University, Cape Town, South Africa
| | - Deidré Mason
- Department of Obstetrics and Gynecology, Tygerberg Hospital, Cape Town, South Africa
| | - Annelize Barnard
- Department of Obstetrics and Gynecology, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Chestley Rashaell Saaiman
- Department of Obstetrics and Gynecology, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Hester Christine Els
- Department of Obstetrics and Gynecology, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Judith Kluge
- Department of Obstetrics and Gynecology, Paarl Hospital, Cape Town, South Africa
| | - Allison Joy Glass
- Lancet Laboratories, Johannesburg, South Africa
- Faculty of Health Sciences, School of Pathology, University of the Witwatersrand, Johannesburg, South Africa
| | - Colleen Anne Wright
- Division of Anatomical Pathology, Faculty of Medicine and Health Sciences, Tygerberg Hospital, National Health Laboratory Service, Stellenbosch University, Cape Town, South Africa
- Lancet Laboratories, Johannesburg, South Africa
| | - Pawel Tomasz Schubert
- Division of Anatomical Pathology, Faculty of Medicine and Health Sciences, Tygerberg Hospital, National Health Laboratory Service, Stellenbosch University, Cape Town, South Africa
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Schoeman SJ, Els HC. The influence of body mass and condition on ovulation rate in polyandroalbumin immunized S A mutton Merino ewes. J S Afr Vet Assoc 1990; 61:62-4. [PMID: 2286987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Two groups of 40 S A Mutton merino ewes were used to determine the effect of body mass and condition score on the response of immunisation against androstenedione. The effect of immunisation was significant (P less than 0.05) on ovulation rate (1.64 for non-immunised and 2.08 for immunised ewes) and higher body mass and condition scores acted complimentary to the effect of immunisation. The ovulation rate in control ewes was more closely related to condition score (r = 0.511) and body mass (r = 0.600) at the end of the experimental period than in the immunised ewe group (r = 0.302 and 0.235).
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Affiliation(s)
- S J Schoeman
- Departement Veekunde, Universiteit van Pretoria, Hillcrest, Republiek van Suid-Afrika
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