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Browsing Research Articles (Urology) by Author "Barnhoorn, Irene E.J."
Now showing items 1-14 of 14
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Barnhoorn, Irene E.J.; Van Dyk, Jacobus C.; Bouwman, Hindrik; Bornman, Maria S. (Riana) (Elsevier, 2010-04)The insecticide DDT is still used in specific areas of South Africa for indoor residual spray (IRS) to control malaria vectors. Local residents could be exposed to residues of DDT through various pathways including indoor ...
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Barnhoorn, Irene E.J.; Bornman, Maria S. (Riana); Jansen van Rensburg, C.; Bouwman, Henk (Elsevier, 2009)DDT is used for indoor residual spraying (IRS) in Limpopo Province, northern South Africa to control malaria. Through IRS, DDT may reach the outdoor environment via dust and air and from possible spillages during application. ...
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Bornman, Maria S. (Riana); Aneck-Hahn, Natalie Hildegard; De Jager, Christiaan; Wagenaar, Gesina M.; Bouwman, Hindrik; Barnhoorn, Irene E.J.; Patrick, Sean Mark; Vandenberg, Laura N.; Kortenkamp, Andreas; Blumberg, Bruce; Kimmins, Sarah; Jegou, Bernard; Auger, Jacques; DiGangi, Joseph; Heindel, Jerrold J. (National Institute of Environmental Health Sciences, 2017)BACKGROUND : Africa faces a number of unique environmental challenges. Unfortunately, it lacks the infrastructure needed to support the comprehensive environmental studies that could provide the scientific basis to inform ...
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Bouwman, Hindrik; Bornman, Maria S. (Riana); Van Dyk, Cobus; Barnhoorn, Irene E.J. (Elsevier, 2015-10)In malaria-endemic areas, where DDT is still used for vector control by indoor residual spraying (IRS), the concentrations of DDT in human blood and breast milk are high, and there are indications of human health impacts. ...
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Botha, T.L.; Pieterse, G.M.; Barnhoorn, Irene E.J.; Van Dyk, J.E.; Marchand, M.J. (AOSIS Open Journals, 2013)A qualitative and quantitative histological assessment was done on the liver, gills and gonads. Focus was placed on reproductive health aspects by staging the gonads according to their reproductive development and assessing ...
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Mlambo, Sibonani S.; Van Vuren, Johan H.J.; Barnhoorn, Irene E.J.; Bornman, Maria S. (Riana) (Elsevier, 2009)This study assesses the effects of 1,1-bis (4-chlorophenyl)-2,2,2-trichloroethane (DDT) on the reproduction and gonadal histology of adult Mozambique tipalia (Oreochromis mossambicus). The fish were allowed to breed, ...
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Marchand, M.J.; Van Dyk, Jacobus C.; Barnhoorn, Irene E.J.; Wagenaar, G.M. (Taylor & Francis, 2012)Histopatholigical changes were identified in selected target organs from two freshwater fish species, Clarias gariepinus and Oreochromis mossambicus, inhabiting a hyper-eutrophic freshwater aquatic system. The approach was ...
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Immunohistochemical study of nuclear changes associated with male germ cell death and spermiogenesis McClusky, Leon M.; Patrick, Sean Mark; Barnhoorn, Irene E.J.; Van Dyk, Jacobus C.; De Jager, Christiaan; Bornman, Maria S. (Riana) (Springer, 2009-08)In a previous study on the effects of gestational and lactational exposure of para-nonylphenol on male rats, we noted in both induced and uninduced rats, that variations in cleaved caspase- 3 immunostaining patterns were ...
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Barnhoorn, Irene E.J.; Van Dyk, Jacobus C.; Pieterse, G.M.; Bornman, Maria S. (Riana) (Elsevier, 2010-07)This study reports on intersex in Oreochromis mossambicus, an indigenous fish species inhabiting most aquatic systems throughout South Africa (SA). Male fish were collected from three sites in the Luvuvhu River, Limpopo ...
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Barnhoorn, Irene E.J.; Van Dyk, Jacobus C.; Genthe, Bettina; Harding, W.R.; Wagenaar, G.M.; Bornman, Maria S. (Riana) (Elsevier, 2015-02)There are increasing concerns regarding the safe human consumption of fish from polluted, freshwater impoundments. The aim of this study was to analyse the muscle tissue of the sharptooth catfish Clarias gariepinus for ...
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Marchand, M.J.; Pieterse, G.M.; Barnhoorn, Irene E.J. (Blackwell, 2008)The effects of DDT and its metabolites on the reproductive health of two fish species (Clarias gariepinus and Oreochromis mossambicus) were studied using the gonadosomatic index (GSI), gonadal histology and computer assisted ...
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McClusky, Leon M.; Barnhoorn, Irene E.J.; Van Dyk, Jacobus C.; Bornman, Maria S. (Riana) (Elsevier, 2008-09)This paper reports on the mechanistic basis of cellular death in the testis of Clarias gariepinus using the TUNEL and caspase-3 immunohistochemistry. It was also aimed to determine the testicular zone most suitable for the ...
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Bornman, Maria S. (Riana); Barnhoorn, Irene E.J.; De Jager, Christiaan; Veeramachaneni, D.N.R. (Elsevier, 2010-05)The purpose of the study was to compare wildlife in the proximity and away from the sources of known industrial pollution. Macroscopic, focal, gritty areas that appeared white were observed in the testes of all 24 South ...
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Kruger, Taneshka; Barnhoorn, Irene E.J.; Jansen van Vuren, Johan; Bornman, Maria S. (Riana) (Elsevier, 2013-01)The African sharptooth catfish (Clarias gariepinus) is indigenous to South Africa where it is commonly found in calm waters such as lakes, streams, rivers, swamps and floodplains. The males of this gonochoristic species ...
Now showing items 1-14 of 14