Awareness of the urban population on the potential environmental and human health risks resulting from and consuming vegetables polluted with heavy metals from Msimbazi river, Dar es Salaam city, Tanzania was investigated. Results show that more than 71% of the 35 respondents use Msimbazi river as a major source of water for vegetable irrigation. High levels of chromium, lead and copper have be...

Flavonoids, a group of naturally occurring antioxidants and metal chelators, can be used as tyrosinase inhibitors due to their formation of copper-flavonoid complexes. Thus, to investigate the underlying inhibition mechanism, a large group of flavonoids from several major flavones and flavonols were tested using fluorescence quenching spectroscopy. In addition, large differences in the tyrosina...

The effects of lead, iron, copper, and zinc ions on 8-aminolevulinic acid dehydratase from red blood cell haemolysates in humans, both in the absence and presence of plasma proteins, have been investigated. 8-aminolevulinic acid dehydratase (ALAD) was not found to be a specific indicator of blood lead concentrations since it was also inhibited by copper and activated by zinc. Plasma protein pro...

Geomedicine is the science dealing with the influence of natural factors on the geographical distribution of problems in human and veterinary medicine. Discussions on potential harmful impacts on human and animal health related to soil chemistry are frequently focused on soil pollution. However, problems related to natural excess or deficiency of chemical substances may be even more important i...

Lead poisoning of wild birds by ingestion lead ammunition occurs worldwide. Histopathological changes in organs lead-intoxicated are widely known, and concentration each organ is measurable using mass spectrometry. However, detailed localization at the suborgan level has remained elusive lead-exposed birds. Here we investigated experimentally ducks kites laser ablation inductively coupled plasm...

objective: the scale of the problem of poisoning is enormous hence clinico epidemiological spectrum of all poisoning cases need to explore to generate the management tool. methods: this prospective study was done at two medicine units (unit 5 and 10) of dhaka medical college hospital from july to december 2010 where all poisoning cases were seen. a total of 2890 patients were admitted out of wh...

The antimicrobial activity of some novel ascorbic acid-metal complexes [bisascorbate complexes of copper (II), zinc(II), manganese (11), iron (111), cobalt(II), lead(II) and cadmium(II)] was investigated. Four standard strains of bacterial species - Staphylococcus aureus, Escherichia coli, Bacillus subtilis and Klebsiella pneumonia and four fungal species - Trichophyton sp. Penicillium sp....

Antimony and arsenic concentrations their oxidation states (Sb(III), Sb(V), As(III) As(V)) in copper electrorefining electrolyte can affect cathode quality through the formation of floating slimes. A laboratory-scale pilot plant was operated to remove Sb from commercial electrolyte. The consisted a pre-treatment process with shavings followed by ion exchange. results indicated that Sb(III) remo...

OBJECTIVE The objective of the present study is to evaluate the characteristics of acute poisoning cases admitted to emergency department over a one year period. The demographic, clinical and psycho-social aspects of the patients were analysed. MATERIALS AND METHODS A hospital based study was carried out in the emergency department, Kathmandu University Teaching Hospital/ Dhulikhel Hospital, ...