Rodrigo Rodrigues de Oliveira

• Professor at State University of Norte Fluminense

Cannabaceae, Moraceae, Ulmaceae and Urticaceae are members of the urticalean rosids clade (Rosales). Their infrafamilial and infrageneric relationships remain poorly understood. The aim of this study was to assess chemical similarities and differences between families of the urticalean rosids clade based on aromatic phenolic compounds. Analysis of...

Introduction: Pourouma guianensis (Urticaceae) is widespread throughout Brazil and is commonly known as “mapati”. Terpenes are common in Urticaceae species. However, few studies have reported the isolation and characterisation of these compounds in Pourouma genus. Method: The aim of this study was to separate substances from stem barks of P. guian...

Lippia alba (erva-cidreira) is often mentioned in Brazilian ethnopharmacological studies. Although its leaves have been used to treat hypertension, few studies have evaluated its hypotensive effects. This work aimed to evaluate the haemodynamic effects of Lippia alba methanolic extract and to characterise its chemical composition. Normotensive rats...

The Urticaceae family, circumscribed within the Rosales, was investigated in this study with an overview of the current literature about phytochemical studies using the Liquid Chromatography coupled to Mass Spectrometry (LC-MS) technique. The aim of this study was to review the secondary metabolites identified in the Urticaeae using LC-MS analysis....

The Urticaceae family (Rosales) comprises six tribes containing 61 genera, with about 2000 species distributed throughout tropical and subtropical regions. Taxonomic controversies concerning Urticaceae remain unresolved. This study aimed to characterize the specialized metabolites in Urticaceae genera and tribes in order to define their chemical pr...

Background The Coussapoa genus (Urticaceae, tribe Cecropiae) contains 50 species mainly distributed throughout the Neotropical Region. Although some genera belonging to the Cecropiae tribe have been well-assessed, the chemical profile of Coussapoa members has not yet been investigated. Objective In this context, the aim of the present study was to...

Steroidal alkaloids (SA) are nitrogen-containing specialized metabolites applied as chemophenetic markers in Solanum L. (Solanaceae). Over time, Solanum has been the focus of several molecular phylogenetic studies in an attempt to resolve its infrageneric classification and the relationship among species belonging to this genus. Here we aimed to st...

Leonotis nepetifolia (L.) R.Br. (Lamiaceae) is a popular herb naturalized in Brazil. The species known as "cordão de frade" is commonly used in folk medicine to treat several disorders, mainly inflammatory conditions. Here we aimed to evaluate the anti-inflammatory effect and toxicity of L. nepetifolia through a bioguided fractionation. The leaves...

Ipomoea pes-caprae (Convolvulaceae), popularly known as “salsa-da-praia”, is used in folk medicine for the treatment of several diseases, including hypertension. The aim of this research was to evaluate hypotensive activity attributed to this species and identify the bioactive compounds responsible for this effect. Hydroalcoholic extract of aerial...

Steroidal alkaloids dominate Solanum micromolecular biosynthesis and barely were used in the infrageneric chemosystematics. This analysis used chemical parameters of evolutionary advancement oxidation (EA O) and skeletal specialization (EA E), aiming to draw evolutionary trends of steroidal alkaloids and help solving Solanum taxonomy. The results c...

Solanum L. is a large, diverse and important Solanaceae genus, which taxonomy and infrageneric relationships are still unresolved, as well as its evolutionary history. Biosynthesized from the mixed pathway (acetate/shikimate) and considered good systematic markers, flavonoids are widely distributed among plant species, as also in Solanum. Through a...

The present study discusses the evolutionary status of Moraceae, from the perspective of chemical features of phenolic micromolecules. A chemosystematics analysis points to affinities between genera and tribe belonging to the Moraceae family, by correlation of the protection parameters of micromolecule hydroxyls resulting from the mixed pathway (ac...

The Moraceae family is a family of great importance amongst angiosperms. It consists of 37 genera and 1500 species, which are extensively distributed, and 23 genera and approximately 350 species alone have been described in Brazilian biomes. Intra-familiar classification, which is based on morphological and anatomical characteristics and on phyloge...

Cereus fernambucensis, conhecida popularmente como manacaru, é conhecida pelo sabor adocicado do seu fruto. Pesquisas clínicas mostram que os antioxidantes fenólicos de frutas, cereais e vegetais são os principais fatores que auxiliam para a redução da incidência de doenças, contribuindo para a saúde. Dessa forma, avaliaram-se os teores de taninos,...