Search Results - "Valente, Ligia M. M."

Anti-inflammatory effects of methyl ursolate obtained from a chemically derived crude extract of apple peels: potential use in rheumatoid arthritis by Pádua, Tatiana A., de Abreu, Bianca S. S. C., Costa, Thadeu E. M. M., Nakamura, Marcos J., Valente, Lígia M. M., Henriques, Maria das Graças, Siani, Antonio C., Rosas, Elaine C.

“…Ursolic acid (UA), a pentacyclic triterpene acid found in apple peels ( Malus domestica , Borkh, Rosaceae), has a large spectrum of pharmacological effects…”
Get full text

Comprehensive characterisation of polyphenols in leaves and stems of three anti‐dengue virus type‐2 active Brazilian Faramea species (Rubiaceae) by HPLC‐DAD‐ESI‐MS/MS by Wolff, Thiago, Berrueta, Luis A., Valente, Ligia M.M., Barboza, Rodolfo S., Neris, Rômulo L.S., Guimarães‐Andrade, Iris P., Assunção‐Miranda, Iranaia, Nascimento, Adriana C., Gomes, Mário, Gallo, Blanca, Iriondo, Carmen

“…Introduction The methanol (MeOH) leaf extracts of the species Faramea bahiensis, F. hyacinthina and F. truncata (Rubiaceae) have previously shown in vitro…”
Get full text

Uncaria tomentosa alkaloidal fraction reduces paracellular permeability, IL-8 and NS1 production on human microvascular endothelial cells infected with dengue virus by Lima-Junior, Raimundo Sousa, Mello, Cintia da Silva, Siani, Antonio Carlos, Valente, Ligia M Marino, Kubelka, Claire Fernandes

“…Dengue is the major Arbovirus in the world, annually causing morbidity and death. Severe dengue is associated with changes in the endothelial barrier function…”
Get more information

Immunomodulating and antiviral activities of Uncaria tomentosa on human monocytes infected with Dengue Virus-2 by Reis, Sonia Regina I.N., Valente, Ligia M.M., Sampaio, André L., Siani, Antonio C., Gandini, Mariana, Azeredo, Elzinandes L., D'Avila, Luiz A., Mazzei, José L., Henriques, Maria das Graças M., Kubelka, Claire F.

“…Uncaria tomentosa (Willd.) DC., a large woody vine native to the Amazon and Central American rainforests has been used medicinally by indigenous peoples since…”
Get full text

Waste biomass to liquids: Low temperature conversion of sugarcane bagasse to bio-oil. The effect of combined hydrolysis treatments by Cunha, Josilaine A., Pereira, Marcelo M., Valente, Ligia M.M., de la Piscina, Pilar Ramírez, Homs, Narcís, Santos, Margareth Rose L.

“…This article describes the influence of different sugarcane bagasse hydrolysis pretreatments on modifications to biomass feedstock and the characteristics of…”
Get full text

Optimized Kaempferitrin Isolation from Uncaria guianensis Leaves by Solid-Phase Extraction by Barboza, Rodolfo S., Mazzei, José L., Valente, Ligia M. M., Siani, Antonio C.

“…A simple and low-cost solid-phase extraction methodology for isolating the bioactive flavonoid kaempferitrin from a defatted fraction of the Uncaria guianensis…”
Get full text

Characterization of polyphenols in the methanol leaf extract of Bathysa gymnocarpa (Rubiaceae) by HPLC-DAD-ESI-MS/MS by Araujo, Ariel M, Cruz, Lucas M, Gomes, Mário, Gallo, Blanca, Valente, Ligia M M, Berrueta, Luis A

“…The species K.Schum is a tree belonging to the Rubiaceae family, endemic in Brazil. So far, there are reports neither of phytochemical work nor of biological…”
Get full text

Antiviral Activity of Faramea hyacinthina and Faramea truncata Leaves on Dengue Virus Type‐2 and Their Major Compounds by Barboza, Rodolfo S., Valente, Ligia M. M., Wolff, Thiago, Assunção‐Miranda, Iranaia, Neris, Rômulo L. S., Guimarães‐Andrade, Iris P., Gomes, Mário

“…The defatted fractions of the Faramea hyacinthina and F. truncata (Rubiaceae) leaf MeOH extracts showed in vitro non‐cytotoxic and anti‐dengue virus serotype 2…”
Get full text

Antiradical activity, nutritional potential and flavonoids of the cladodes of Opuntia monacantha (Cactaceae) by Valente, Ligia M.M., da Paixão, Djavan, do Nascimento, Adriana C., dos Santos, Priscila F.P., Scheinvar, Leia A., Moura, Mirian R.L., Tinoco, Luzineide W., Gomes, Luiz Nelson F., da Silva, Joaquim F.M.

“…This work reports the nutritional potential and the antiradical activity of the cladodes of the Brazilian Opuntia monacantha Haw. (Cactaceae), as well the…”
Get full text

POLYPHENOL AND TRITERPENOID CONSTITUENTS OF Eugenia florida DC. (MYRTACEAE) LEAVES AND THEIR ANTIOXIDANT AND CYTOTOXIC POTENTIAL by Santos, Priscila, Gomes, Luiz, Mazzei, José, Fontão, Ana Paula, Sampaio, André, Siani, Antonio, Valente, Ligia

“…Leaves of Eugenia florida DC. have been used in folk medicine as hypotensive, hypoglycemic, antipyretic and for gastrointestinal disorders, among others. In…”
Get full text

Efficiency and selectivity of triterpene acid extraction from decoctions and tinctures prepared from apple peels by Siani, Antonio C, Nakamura, Marcos J, Dos Santos, Daniel S, Mazzei, José L, do Nascimento, Adriana C, Valente, Ligia M M

“…This study assessed the extraction efficiency of ursolic (UA) and oleanolic acids (OA), as well as the total phenols in aqueous and hydroethanolic extracts of…”
Get full text

New Norcucurbitacin and Heptanorcucurbitacin Glucosides from Fevillea trilobata by Valente, Ligia M. M, Gunatilaka, A. A. Leslie, Glass, Thomas E, Kingston, David G. I, Pinto, Angelo C

“…From the MeOH extract of the seeds of Fevillea trilobata (Cucurbitaceae) were isolated fevicordin A glucoside [1], cayaponoside B [2], cayaponoside D [3], a…”
Get full text

Polyphenol Profile and Quantitative Assessment of the Flavonoid Kaempferitrin in Wild and Cultivated Brazilian Amazonian Uncaria guianensis (Rubiaceae) by da Paixão, Djavan, Barboza, Rodolfo, Valente, Ligia, Souza, Matheus, Siani, Antonio, Pereira, Rita, Gallo, Blanca, Berrueta, Luis

“…The Amazonian Rubiaceae species Uncaria guianensis (UG) is locally used as antiinflammatory, antitumor, antidiabetic, anti-ulcers, and others. The phenolic…”
Get full text

Iridoid glucosides from the stems of three bioactive Brazilian Faramea species (Rubiaceae) by Wolff, Thiago, Valente, Ligia M.M., Barboza, Rodolfo S., Berrueta, Luis A., Gallo, Blanca, Gomes, Mário

“…In this paper our previous chemical study of the anti-dengue active species Faramea bahiensis, Faramea hyacinthina and Faramea truncata (synonym of Faramea…”
Get full text

One-Step Isolation of Monoterpene Indole Alkaloids from Psychotria leiocarpa Leaves and Their Antiviral Activity on Dengue Virus Type-2 by Costa, Jéssica, Barboza, Rodolfo, Valente, Ligia, Wolff, Thiago, Gomes, Mário, Gallo, Blanca, Berrueta, Luis, Guimarães-Andrade, Iris, Gavino-Leopoldino, Daniel, Assunção-Miranda, Iranaia

“…The leaf MeOH extract of Psychotria leiocarpa (Rubiaceae) showed in vitro non-cytotoxic and anti-dengue virus serotype 2 (DENV2) activity in human…”
Get full text

Antiviral activity of Faramea bahiensis leaves on dengue virus type-2 and characterization of a new antiviral flavanone glycoside by Nascimento, Adriana C., Valente, Ligia M.M., Gomes, Mário, Barboza, Rodolfo S., Wolff, Thiago, Neris, Rômulo L.S., Figueiredo, Camila M., Assunção-Miranda, Iranaia

Get full text

A Bioactive seco-Rosane Diterpenoid from Vellozia candida by Valente, Ligia M. M, Gunatilaka, A. A. Leslie, Kingston, David G. I, Patitucci, Maria L, Pinto, Angelo C

“…Bioassay-directed fractionation of the bioactive alcoholic extracts of Vellozia candida yielded a new 6,7-seco-rosane diterpenoid, candidalactone (1), which…”
Get full text

Piperamides from Piper ottonoides by NMR and GC-MS Based Mixture Analysis by Wolff, Thiago, Santos, Priscila F. P., Valente, Ligia M. M., Magalhães, Alvicler, Tinoco, Luzineide W., Pereira, Rita C. A., Guimarães, Elsie F.

“…The species Piper ottonoides Yuncker (Piperaceae), known as “joão-brandim”, is a shrub that occurs in the Brazilian Amazon rainforest. Its roots and leaves are…”
Get full text

Norcucurbitacin Gentiobiosides from Fevillea trilobata by Valente, Ligia M. M, Gunatilaka, A. A. Leslie, Kingston, David G. I, Pinto, Angelo C

“…The new norcucurbitacin glycosides, andirobicin A gentiobioside [2], and andirobicin C gentiobioside [1], and the known fevicordin F gentiobioside [3], were…”
Get full text

A new isopimarane diterpenoid from Vellozia pusilla pohl (velloziaceae) by Dantas, Ana Letícia A., Valente, Ligia Maria M., Pinto, Angelo C.

“…A new isopimarane diterpenoid, 8(9),15-isopimaradien-7-one-20,12-carbolactone (1), was isolated from Vellozia pusilla Pohl. Its structure was established on…”
Get full text