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| RÍOS-CHÁVEZ,PATRICIA; PEREZ-GONZALEZ,JORDY; SALGADO-GARCIGLIA,RAFAEL; RAMÍREZ-CHÁVEZ,ENRIQUE; MOLINA-TORRES,JORGE; MARTINEZ-TRUJILLO,MIGUEL; CARREON-ABUD,YAZMIN. |
| Abstract: This study evaluates the antibacterial, cytotoxic activities, and phytochemical composition, of Callistemon citrinus, Hibiscus rosa-sinensis and Plumbago auriculata leaves and flowers, three ornamental plants in Mexico. However, in other countries offers a range of other uses. Ethanol extracts of C. citrinus leaf and flower presented stronger antibacterial activity than the extracts obtained from the other two plants. C. citrinus leaf showed low cytotoxicity (LC50 <600 µg/mL) on the brine shrimp test, whereas the ethanol extracts of H. rosa-sinensis and P. auriculata leaves showed no cytotoxic activity. Flower extracts obtained from the three plants did no exhibit cytotoxicity. GC-MS analysis revealed that the ethanol extract of P. auriculata... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antibacterial; Artemia salina; Callistemon citrinus; Cytotoxic; Lupeol. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000300611 |
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| de-Almeida,S.C.X.; da-Silva,Â.C.F.; Sousa,N.R.T.; Amorim,I.H.F.; Leite,B.G.; Neves,K.R.T.; Costa,J.G.M.; Felipe,C.F.B.; de-Barros Viana,G.S.. |
| Himatanthus drasticus (Mart.) Plumel belongs to the Apocynaceae family and the latex from its trunk bark (Hd) is known as “janaguba milk”. This latex is widely used in Northeast Brazil, mainly in the Cariri region, for its gastroprotective, anti-inflammatory, and antitumor properties. The objective of this study was to investigate a triterpene-rich fraction (FJNB) from H. drasticus latex on acute models of nociception and inflammation and to clarify its mechanisms of action. Wistar rats or Swiss mice were subjected to the carrageenan-induced paw edema test or the formalin test, respectively, after the acute oral treatment with FJNB. The inflamed paws from the carrageenan-induced paw edema and formalin tests were processed for histological and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pentacyclic triterpenes; Lupeol; Alpha-amyrin; Beta-amyrin; Inflammation; Himatanthus drasticus. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2019000500612 |
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| Luz,S.M.; Souza Filho,A.P.S.; Guilohn,G.M.S.P.; Vilhena,K.S.S.. |
| Os objetivos deste trabalho foram isolar, identificar e caracterizar a atividade alelopática de substâncias químicas produzidas por Acacia mangium, além de determinar as variações na atividade das substâncias em função da variação do pH da solução. A atividade alelopática foi avaliada em bioensaios de germinação (25 ºC de temperatura e fotoperíodo de 12 horas) e crescimento de radícula e hipocótilo (25 ºC de temperatura e fotoperíodo de 24 horas) das plantas daninhas malícia (Mimosa pudica) e mata-pasto (Senna obtusifolia). Avaliou-se a interferência do pH (3,0 e 9,0) da solução na atividade alelopática das substâncias sobre a germinação das sementes da espécie malícia. Os triterpenoides lupenona (3-oxolup-20(29)-eno) e lupeol (3β-hidroxilup-20(29)-eno),... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Alelopatia; Leguminosae; Lupenona; Lupeol. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582010000300004 |
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| Hashmi,Waleed Javed; Ismail,Hammad; Jafri,Laila; Mirza,Bushra. |
| In this study, we investigated the protective effects of Hedera nepalensis crude extract, its fractions and lupeol in alloxan-induced diabetic rats. Lupeol and n-hexane (HNN) fraction significantly reduced the blood glucose level by increasing insulin level in time dependent manner, and also significantly increased amylase and lipase activity in diabetic rats. Elevated levels of alanine transaminases (ALT), aspartate transaminases (AST), thiobarbituric acid reactive substances (TBARS), nitrite, hydrogen peroxide (H2O2), total bilirubin and total protein in blood serum were efficiently restored to normal levels. Suppressed enzymatic activity of catalase (CAT), superoxide dismutase (SOD), reduced glutathione (GSH) and peroxidase (POD) were also restored to... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antioxidant; Amylase; Diabetes mellitus; Insulin; Hedera nepalensis; Lupeol. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502020000100597 |
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