Fauna used in popular medicine in Northeast Brazil

<p>Abstract</p> <p>Background</p> <p>Animal-based remedies constitute an integral part of Brazilian Traditional Medicine. Due to its long history, zootherapy has in fact become an integral part of folk medicine both in rural and urban areas of the country. In this paper we summarize current knowledge on zootherapeutic practices in Northeast of Brazil, based on information compiled from ethnobiological scientific literature.</p> <p>Methods</p> <p>In order to examine the diversity of animals used in traditional medicine in Northeast of Brazil, all available references or reports of folk remedies based on animals sources were examined. 34 sources were analyzed. Only taxa that could be identified to species level were included in assessment of medicinal animal species. Scientific names provided in publications were updated.</p> <p>Results</p> <p>The review revealed that at least 250 animal species (178 vertebrates and 72 invertebrates) are used for medicinal purposes in Northeast of Brazil. The inventoried species comprise 10 taxonomic categories and belong to 141 Families. The groups with the greatest number of species were fishes (n = 58), mammals (n = 47) and reptiles (n = 37). The zootherapeutical products are used for the treatment of different illnesses. The most widely treated condition were asthma, rheumatism and sore throat, conditions, which had a wide variety of animals to treat them with. Many animals were used for the treatment of multiple ailments. Beyond the use for treating human diseases, zootherapeutical resources are also used in ethnoveterinary medicine</p> <p>Conclusion</p> <p>The number of medicinal species catalogued was quite expressive and demonstrate the importance of zootherapy as alternative therapeutic in Northeast of Brazil. Although widely diffused throughout Brazil, zootherapeutic practices remain virtually unstudied. There is an urgent need to examine the ecological, cultural, social, and public health implications associated with fauna usage, including a full inventory of the animal species used for medicinal purposes and the socio-cultural context associated with their consumption.</p

Analytical strategies for the marble burying test: avoiding impossible predictions and invalid p-values

BACKGROUND: The marble burying test is used to measure repetitive and anxiety-related behaviour in rodents. The number of marbles that animals bury are count data (non-negative integers), which are bounded below by zero and above by the number of marbles present. Count data are often analysed using normal linear models, which include the t-test and analysis of variance (ANOVA) as special cases. Linear models assume that the data are unbounded and that the variance is constant across groups. These requirements are rarely met with count data, leading to 95% confidence intervals that include impossible values (less than zero or greater than the number of marbles present), misleading p-values, and impossible predictions. Transforming the data or using nonparametric methods are common alternatives but transformations do not perform well when many zero values are present and nonparametric methods have several drawbacks. FINDINGS: The problems with using normal linear models to analyse marble burying data are demonstrated and generalised linear models (GLMs) are introduced as more appropriate alternatives. CONCLUSIONS: GLMs have been specifically developed to deal with count and other types of non-Gaussian data, are straightforward to use and interpret, and will lead to more sensible inferences. ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (doi:10.1186/s13104-015-1062-7) contains supplementary material, which is available to authorized users

Zooterapia popular na Chapada Diamantina: uma medicina incidental? Folk medicine using animals in the Chapada Diamantina: incidental medicine?

Este trabalho analisa o sistema zooterápico tradicional de uma população afrodescendente na Chapada Diamantina, Bahia. A pesquisa foi conduzida ao longo de oito meses de trabalho nos quais foram realizadas entrevistas livres e semi-estruturadas, registro fotográfico e identificação de espécies. Busca-se, além da apresentação de uma lista de produtos oriundos de animais e seus respectivos usos, iniciar uma discussão sobre as possíveis razões para crença no potencial terapêutico ou profilático das frações e produtos animais amplamente utilizados na medicina tradicional de populações brasileiras.<br>This study examines the traditional therapeutic use of animals or parts of animals by an Afro Brazilian population living in the Chapada Diamantina, Bahia, Brazil. The investigation was conducted over a period of eight months and consisted of open- and semi-structured interviews, photographic documentation and identification of species. Besides presenting a list of animal products and their respective use, we seek to stimulate a discussion about the possible existence of a rational basis for the belief in the therapeutic or prophylactic potential of the animal products used in the traditional medicine of Brazilian populations