Toxic effects of chromium on Schistosoma haematobium miracidia

Journal Article · Thu Dec 01 00:00:00 EST 1988 · Bull. Environ. Contam. Toxicol.; (United States)

DOI:https://doi.org/10.1007/BF02021057· OSTI ID:6143340

Wolmarans, C T; Yssel, E; Hamilton-Attwell, V L

Various heavy metals have recently been evaluated as molluscicides for freshwater snails, which act as intermediate hosts of trematode parasites of medical or veterinary importance. Very little information, however, is available on heavy metals that may be suitable to eliminate the parasites as such. Suitable compounds should also inhibit the penetration ability of parasites as well as stunt the development of those who do not penetrate their hosts. In the light of these requirements, the present study evaluated the effect of chromium on the miracidia of Schistosoma haematobium, which causes urinary bilharzia. Attention was mainly focused on (1) the chromium concentration which resulted in 100% mortality (2) the effect of chromium on the external and internal morphology of the miracidia, and (3) the ability of the miracidia to form sporocytes in vitro and in vivo and to penetrate their intermediate host snail, Bulinus africanus.

• Research Organization: Potchefstroom Univ. for Christian Higher Education (South Africa)
• OSTI ID: 6143340
• Journal Information: Bull. Environ. Contam. Toxicol.; (United States), Vol. 41:6
• Country of Publication: United States
• Language: English

Related Subjects

63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
CHROMIUM COMPOUNDS
BIOLOGICAL EFFECTS
SCHISTOSOMA
MORPHOLOGY
EGGS
LIFE CYCLE
MORTALITY
SNAILS
SPORES
ANIMALS
AQUATIC ORGANISMS
HELMINTHS
INVERTEBRATES
MOLLUSCS
PLATYHELMINTHS
TRANSITION ELEMENT COMPOUNDS
TREMATODES
560300* - Chemicals Metabolism & Toxicology