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Critical Review and Meta-Analysis of Serial Agitated Dilutions in Experimental Toxicology

Projekt 'Münchener Modell', Ludwig-Maximilians-Universität, Pettenkoferstr. 8a, 8000 München 2, GFR

Wayne B. Jonas

Division of Medicine, Walter Reed Army Institute of Research, Washington, D.C. 20307-5100, USA

Dieter Melchart

Projekt 'Münchener Modell', Ludwig-Maximilians-Universität, Pettenkoferstr. 8a, 8000 München 2, GFR

Felege Worku

Projekt 'Münchener Modell', Ludwig-Maximilians-Universität, Pettenkoferstr. 8a, 8000 München 2, GFR

Hildebert Wagner

Institut für Pharmazeutische Biologie, Ludwig-Maximilians-Universität, Karlstr. 29, 8000 München 2, GFR

Florian Eitel

Theoretische Chirurgie, Chirurgische Klinik und Poliklinik Innenstadt, Ludwig-Maximilians-Universität, Nussbaumstr. 20, 8000 München 2, GFR

1 We conducted an overview and quantitative meta-analysis of all experimental literature on the protective effects of serial agitated dilutions (SADs) of toxin preparations.

2 Articles were systematically collected and evaluated for scientific quality using pre-defined methodological criteria and then independently analysed for validity.

3 We found 105 publications exploring the effects of SAD preparations in toxicological systems.

4 The quality of evidence in these studies was low with only 43% achieving one half of the maximum possible quality score and only 31 % reported in a fashion that permitted reevaluation of the data.

5 Very few studies were independently replicated using comparable models.

6 Among the high quality studies, positive effects were reported 50% more often than negative effects.

7 Four of 5 outcomes meeting quality and comparability criteria for meta-analysis showed positive effects from SAD preparations.

8 Average percent protection over controls in these preparations was 19.7 (95%Cl 6.2-33.2).

9 Further research with special attention to methodological detail and independent replicafion should be done.

Human & Experimental Toxicology, Vol. 13, No. 7, 481-492 (1994)
DOI: 10.1177/096032719401300706


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