Scientific Publications

September 6, 2018

Concentrations of arsenic and lead in residential garden soil from four Johannesburg neighbourhoods

Author A. Mathee, T. Kootbodien, T. Kapwata, N. Naicker Source Environmental research Summary Abstract: The 2017 Lancet Commission on Pollution and Health identified soil as an important, daily route of public exposure to a variety of pollutants. Lead and arsenic are two potential soil contaminants associated with serious health effects including reductions in intelligence, behavioral effects and aggressive or violent behavior (lead), as well as skin changes, cancer of the skin, bladder, liver and lungs and developmental delays (arsenic). In […]
September 6, 2018

Blood biochemical and hematological study after subacute intravenous injection of gold and silver nanoparticles and coadministered gold and silver nanoparticles of similar sizes

Author JH Lee, M. Gulumian, EM Faustman, T. Workman, K. Jeon and IJ Yu Source BionMed Research International 2018 Summary Background: Background: To investigate the effect of subacute intravenous administration AgNP (silver nanoparticles, 10 nm) and AuNP (gold nanoparticles, 12.8 nm) and AgNP/AuNP mixture to blood biochemistry, hematology, and platelet coagulation, subacute toxicity study was conducted. Methods: AuNP and AgNP in which their size distribution was not statistically different, mixed or separate, were injected into the caudal vein of male […]
September 6, 2018

An assessment of applicability existing approaches predicting bioaccumulation of conventional substances nanomaterials

Author W. Utembe, V. Wepener, I. Je Yu, M. Gulumian Source Environ Toxicol Chem; DOI: 10.1002/etc.4253 Summary Abstract: TAs the experimental determination of bioaccumulation is challenging, a number of approaches have been developed for its prediction. Since nanomaterials (NMs) have been shown to bioaccumulate, it is imperative to assess the applicability of these predictive approaches to NMs. KOW may not be applicable for some NMs that are not found in either the octanol or water phases but rather are found […]
August 14, 2018

WHO/ILO work-related burden of disease and injury: Protocol for systematic reviews of occupational exposure to dusts and/ or fibres and of the effect of occupational exposure to dusts and/or on pneumoconiosis

Author D. Mandrioli, V. Schlunssen, B. Adam, RA Cohen, C. Colosio, W. Chen, et al. Source Environmental International 119 (2018) 174-185 Summary Background: The World Health Organization (WHO) and the International Labour Organization (ILO) are developing a joint methodology for estimating the national and global work-related burden of disease and injury (WHO/ILO joint methodology), with contributions from a large network of experts. In this paper, we present the protocol for two systematic reviews of parameters for estimating the number of […]
August 14, 2018

Staphylococcus aureus and Escherichia coli levels on the hands of the theatre staff in three hospitals in Johannesburg, South Africa, before and after handwashing

Author DO Matuka, HA Carman and T. Singh Source S Afr Med J 2018; 108(6) Summary Background:  Hand hygiene is a fundamental component of infection control. Hand contamination with Staphylococcus aureus and Escherichia coli may contribute to infections. Objectives: To assess the effectiveness of different hand-washing methods in reducing the levels of bacterial flora, especially S. aureus and E. coli, on the hands of theatre staff. Methods: A cross-sectional study was conducted among 70 staff in surgical theatres of three randomly chosen hospitals in Johannesburg, South Africa. […]