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Lysozyme activity in the plasma of rodents infected with their homologous trypanosomes

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Maraghi, S, Molyneux, David ORCID: https://orcid.org/0000-0001-8537-7947 and Wallbanks, Keith (2012) 'Lysozyme activity in the plasma of rodents infected with their homologous trypanosomes'. Iranian Journal of Parasitology, Vol 7, Issue 4, pp. 86-90.

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Abstract

BACKGROUND
In this study the concentration of lysozyme in blood plasma of Microtus agrestis, Clethrinomys glareolus, Apodemus sylvaticus, BK rats and outbred white mice before and after infection with culture forms of Trypanosoma microti, T, evotomys, T. grosi, T. lewisi and T. musculi respectively was measured.

METHODS
Blood samples of rodents, Microtus agrestis, Clethrionomys glareolus, Apodemus sylvaticus, BK rats and outbred mice infected with T. microti, T. evotomys, T. grosi, T. lewisi and T. musculi respectively were collected in heparinized micro- tubes immediately before inoculation and 3, 6, 12, 24, 48, 96 and more than 400 days after intra- perituneal inoculation with 5×10(5)of their homologous trypanosome parasites of which more than half were metacyclic trypomastigote in 0.2 ml of culture medium. Micro- tubes were centrifuged and plasma samples were separated and the lysozyme activity was measured by the agar method.

RESULTS
Levels of lysozyme rose rapidly three to six days after the inoculation to ten to twenty than their pre- infection levels. They then gradually decreased, although after more than one year they were still two to ten folds higher than controls. The highest level measured occurred in rats infected with T. lewisi and the lowest in A. sylvaticus infected with T. grosi. After one year the highest concentration of lysozyme was in mice infected with T. musculi and lowest in A. sylvaticus.

CONCLUSION
Persistent enhanced lysozyme levels may prevent re- infection with trypanosomes.

Item Type: Article
Uncontrolled Keywords: Herpetosoma; Lysozyme; Rodents; Trypanosoma
Subjects: QU Biochemistry > Enzymes > QU 136 Hydrolases
QX Parasitology > Protozoa > QX 70 Mastigophora. (e.g., Giardia. Trichomonas. Trypanosoma. Leishmania)
QY Clinical Pathology > Blood. Blood Chemistry > QY 400 General works
Faculty: Department: Groups (2002 - 2012) > Molecular & Biochemical Parasitology Group
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Depositing User: Mary Creegan
Date Deposited: 23 Jul 2014 11:47
Last Modified: 17 Jul 2020 10:57
URI: https://archive.lstmed.ac.uk/id/eprint/3807

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