Ethnopharmacological notes about ancient uses of medicinal plants in Trás-os-Montes (northern of Portugal)

Neves, José; Matos, Carla; Moutinho, Carla; Queiróz, Glória; Gomes, Lígia R.

doi:10.1016/j.jep.2009.04.041

Cited by 242 publications

(147 citation statements)

References 26 publications

(31 reference statements)

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“…[ of Iberian Peninsula and in Morocco, its therapeutic and flavoring use is almost restricted to Portuguese territory (Camejo-Rodrigues, et al, 2003;Neves et al, 2009;Pardo-deSantayana et al, 2007). In fact, references to this plant from Spanish and Northwest African researchers are scarce (Bremner et al, 2009;Pardo-de-Santayana et al, 2007).…”

Section: Discussionmentioning

confidence: 99%

“…Further, recent studies suggest that stems can also be used as a bioethanol source, in alternative to petroleum-derived fuels (S. Ferreira, Gil, Queiroz, Duarte, & Domingues, 2010). The yellow flowers are used in traditional medicine, sometimes in herbal mixtures, for throat irritation treatment, diabetes therapy or for controlling hypertension and hypercholesterolemia (Camejo-Rodrigues, Ascensa˜o, Bonet, & Valle`s, 2003;Castro, 1998;Grosso et al, 2007;Neves, Matos, Moutinho, Queiroz, & Gomes, 2009). As a matter of fact, the P. tridentatum flowers tea is widely used in Portuguese territory as a panacea, being regarded as a potential cure for all illnesses of the body.…”

Section: Introductionmentioning

confidence: 99%

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Antioxidant capacity and toxicological evaluation ofPterospartum tridentatumflower extracts

Ferreira

Dinis

Azedo

et al. 2012

CyTA - Journal of Food

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Pterospartum tridentatum Willk. (prickled broom) is an autochthonous plant, common in Portuguese territory. The yellow flowers are used in traditional medicine, as a potential cure for all body illnesses, mainly to treat throat irritations or for diabetes, hypertension and hypercholesterolemia therapy. Despite its traditional use, no toxicological assessment has been performed to our knowledge. A high antioxidant activity of P. tridentatum flower water extract was found, in good agreement with its electrospray ionisation-mass spectroscopy (ESI-MS) spectrum which revealed the presence of several flavonoids, such as luteolin-O-(O-acetyl)-glucuronide, luteolin-Oglucuronide or isorhamnetin-O-hexoside. Mitocondrial respiratory rates (state 4, state 3 and FCCP-stimulated respiration) and respiratory indexes (respiratory control and P/O ratios) showed no consistent decrease of respiratory and phosphorylative efficiencies for the concentrations tested (up to 500 mg.mL 71 ). Cytotoxicity evaluation, using MTT assay, was in agreement with the previous results. In conclusion, for the concentration range commonly used, P. tridentatum flower usage can be regarded as harmless and credible.Keywords: antioxidant capacity; cytotoxicity; oxidative phosphorylation; phytotherapy; Pterospartum tridentatum (L.); Willk.; toxicologic evaluation Pterospartum tridentatum Willk. es una planta auto´ctona comu´n en el territorio portugue´s. Las flores amarillas se usan en medicina tradicional como cura potencial para todas las enfermedades, especialmente para tratamientos de irritacio´n de garganta o para tratamientos contra diabetes, hipertensio´n o hipercolesterolemia. A pesar de su uso tradicional, ninguna evaluacio´n toxicolo´gica se ha llevado a cabo. Se encontro´una alta actividad antioxidante de extracto acuoso de flor de P. Tridentatum, concordando con su espectro ESI-MS, el cual revelo´la presencia de varios flavonoides, como luteolina O-(O-acetil)-glucuro´nido, luteolina-Oglucuro´nido o isorramntina-O-hexo´sido. Las frecuencias respiratorias mitocondriales (estado 4, estado 3 y respiracio´n estimulada por FCCP) mostraron un descenso no consistente de eficiencia respiratoria y fosforilativa para las concentraciones analizadas (hasta 500 mg.mL -1 ). La evaluacio´n de citotoxicidad, usando ensayo MTT, coincidio´con los resultados previos. En conclusio´n, para las concentraciones comu´nmente empleadas, el uso de las flores de P. tridentatum se puede considerar inocuo y verosı´mil.Palabras claves: capacidad antioxidante; citotoxicidad; fosforilacio´n oxidativa; fitoterapia; Pterospartum tridentatum (L.) Willk; evaluacio´n toxicolo´gica Abbreviations: ESI, electrospray ionization; FCCP, carbonyl cyanide p-trifluoromethoxyphenylhydrazone; HepG2, a human hepatoma cell line; MS, mass spectrometry; MTT, 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide; P/O ratio, ratio of ADP molecules phosphorylated to atoms of oxygen consumed; RCR, respiratory control ratio (state 3 respiratory rate/state 4 respiratory rate)

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Antioxidant capacity and toxicological evaluation ofPterospartum tridentatumflower extracts

Ferreira

Dinis

Azedo

et al. 2012

CyTA - Journal of Food

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“…Ancestral claims report that "teas" of chestnut leaves and flowers are used for medicinal purposes, namely as mucolytic, antispasmodic and anti-dysenteric treatments, among others (Neves et al, 2009). Our research group has been working with chestnut fruits (Carocho et al, 2012), flowers (Barros et al, 2010) and leaves, with very good results regarding antioxidant (Carocho et al, 2014) and anti-candida activity of the flowers.…”

Section: Introductionmentioning

confidence: 98%

Infusions and decoctions of Castanea sativa flowers as effective antitumor and antimicrobial matrices

Carocho

Calhelha

Queiroz

et al. 2014

Industrial Crops and Products

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Chestnut trees are one of the most important crops in the North-eastern part of Portugal, representing millions of euros of yearly income. There are many ancestral claims of the health benefits of the consumption of chestnut flowers in infusions that remain unproven. In this manuscript, the antitumor and antimicrobial potential of chestnut flowers from two cultivars, Judia and Longal, extracted through infusions and decoctions are reported. In terms of antitumor activity, the most sensitive cell lines were HepG2 and HCT15 with the cultivar Judia showing higher activity for HCT15 and Longal for HepG2, regardless of the extraction methods. Regarding the antibacterial activity of the extracts, decoctions proved to be more effective with lower minimum inhibition concentrations, while infusions were better in terms of antifungal activity.The good overall antimicrobial activity could justify the inclusion of the flowers in food chain processing to act as a natural antimicrobial. Furthermore, the results corroborate some of the ancestral claims of the consumption of these flowers.

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“…This small shrub alternates branches and coriaceous winged stems (Franco, 1971;Teixeira & Pereira, 2004) and its inflorescences are either used in traditional medicine or to flavour rice and roasted meat (Oliveira & Neiva, 2001;Ribeiro, Monteiro, & Silva, 2000). The P. tridentatum inflorescences are picked during early spring and subsequently dried for the preparation of hot water extracts that, according to the popular tradition, provide protection against various health disorders, such as type 2 diabetes, influenza, and hypertension (Carvalho, 2010, nullChapter ;Neves, Matos, Moutinho, Queiroz, & Gomes, 2009;Vitor et al, 2004). The composition of the essential oils (Grosso et al, 2007), as well as the role of the flavonoids from P. tridentatum water extracts as protectors against endothelial oxidative injury have been investigated (Vitor et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

In vitro macrophage nitric oxide production by Pterospartum tridentatum (L.) Willk. inflorescence polysaccharides

Martins

Simões

Ferreira

et al. 2017

Carbohydrate Polymers

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a b s t r a c tPterospartum tridentatum (L.) Willk. decoctions of dried inflorescences are used in Portugal due to their claimed beneficial properties for various health disorders. To disclose the potential contribution of its polysaccharides to health benefits, in this work, hot water extracts from P. tridentatum inflorescences were prepared and fractionated by ethanol precipitation and anion exchange chromatography. The fraction rich in acetylated galactomannans evidenced an increase in nitric oxide (NO) production by macrophages. This activity decreased 60-75% after saponification, confirming that acetylation is an important structural feature for this biological property. In addition, the treatment of pectic polysaccharides with endopolygalacturonase showed that type-I and type-II arabinogalactans, as well as low molecular weight galacturonans and xyloglucans, may also contribute to macrophage NO production. Thus, the polysaccharides present in P. tridentatum dried inflorescences may contribute to the health beneficial properties frequently attributed to the decoctions of this plant.

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Ethnopharmacological notes about ancient uses of medicinal plants in Trás-os-Montes (northern of Portugal)

Cited by 242 publications

References 26 publications

Antioxidant capacity and toxicological evaluation ofPterospartum tridentatumflower extracts

Antioxidant capacity and toxicological evaluation ofPterospartum tridentatumflower extracts

Infusions and decoctions of Castanea sativa flowers as effective antitumor and antimicrobial matrices

In vitro macrophage nitric oxide production by Pterospartum tridentatum (L.) Willk. inflorescence polysaccharides

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