Browsing by Author "Lamprecht, J. H."

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    Drug and poison information. The Tygerberg experience
    (Health & Medical Publishing Group, 1993) Muller, G. J.; Hoffman, B. A.; Lamprecht, J. H.
    This report is based on an analysis of 6411 consultations processed by the Tygerberg Pharmacology and Toxicology Consultation Centre. Seventy-five per cent of the consultations were of a toxicological nature: 47% related to non-drug chemicals, 37% to drugs and 16% to plants and animals. Pesticides utilised in the home environment featured most prominently in the non-drug chemical group, while queries about paracetamol overdose topped the list in the drug group. The most frequent queries in the biological category concerned potentially poisonous plants. Twenty-five per cent of the consultations related to pharmacotherapeutics. Most potentially toxic exposures to non-drug chemicals occurred in the household setting. Contrary to popular belief, few acute pesticide poisonings were encountered as a result of exposures during farming activities. Another important finding was that there is a frustrating lack of reliable and readily available information in respect of potentially toxic ingredients contained in household and industrial preparations. The large number of household exposures highlights the need for education in the safe storage and usage of non-drug chemicals. Legislation on the inclusion of basic toxicological information and warnings on labels of household and industrial non-drug chemical products should be considered. In addition, the Government should take responsibility for centralising information on all potentially toxic non-drug chemicals and make this information available to poison centres at all times. It is also imperative that more attention be given to the training of health care professionals in applied pharmacokinetics and toxicology.
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    Plant sterol/sterolin supplement use in a cohort of South African HIV-infected patients : effects on immunological and virological surrogate markers
    (Health & Medical Publishing Group, 2001) Bouic, P. J. D.; Clark, A.; Brittle, W.; Lamprecht, J. H.; Freestone, M.; Liebenberg, R. W.
    It has been demonstrated that micronutrient supplementation may be an important prophylactic and therapeutic measure for HIV-1-infected patients, and is possibly one of the few potential interventions for low-income countries.' In sub-Saharan countries facing the bulk of new infections worldwide, the use of highly active antiretroviral therapy (HAART) is out of reach of most patients because of the cost in the private sector and the lack of provision of any therapies by the health departments of these countries. In recent years many groups have investigated the outcomes of this infection in patients supplemented with vitamin B2 or multivitamin supplementation including/excluding vitamin A during pregnancy.' Some studies have shown that high doses of vitamin B6 supplements were associated with improved survival of patients, while zinc supplementation was associated with poorer survival.'
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    Scombroid poisoning : case series of 10 incidents involving 22 patients
    (Health & Medical Publishing Group, 1992) Muller, G. J.; Lamprecht, J. H.; Barnes, J. M.; De Villiers, R. V. P.; Honeth, B. R.; Hoffman, B. A.
    Scombroid poisoning is a form of ichthyosarcotoxism caused by the consumption of 'spoiled' fish of the dark meat varieties. It can be considered a mild-to-moderate form of 'food poisoning' and it occurs world-wide. Ten incidents, involving 22 patients, were reported to Tygerberg Hospital Pharmacology and Toxicology Consultation Centre in the first quarter of 1990. Cape yellowtail (Seriola lalandii) was involved in all the cases. The presenting symptoms and signs (in order of frequency) were: skin rash, diarrhoea, palpitations, headache, nausea and abdominal cramps, paraesthesia, an unusual taste sensation and breathing difficulties. The patients responded well to antihistamines and, in most, the condition resolved within 12-24 hours. Although histamine plays an important role in the pathogenesis of scombroid poisoning, the exact mechanism is still unresolved. The condition should be recognised and not confused with a true seafood allergy. Health workers are urged to alert the authorities when outbreaks of suspected cases of scombroid poisoning are encountered in order to establish the possible cause and to prevent further cases.