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The authors wish to emphasize that the experiments were simultaneously conducted with several plant species, and identical control groups were utilized for both articles (Phytomedicine (2017), doi:10 [...].
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Increased reactive oxygen species and advanced glycation end products are often associated with human ageing and degenerative diseases. Biancaea sappan L serves as a medicinal plant and a healthy drinks ingredient in Java. However, the pharmacological investigation of the plant native to this island is still lacking in depth. In the current study, DNA barcoding using the marker gene maturase K (matK), evaluation of the chemical composition, total phenolic content (TPC) and antioxidant properties, antiglycation, anti-ß-amyloid, anti-inflammatory, and selective cytotoxic activities were performed. B. sappan shares well-known phytoconstituents with other members of the genus Biancaea. The heartwood ethanol extract possesses the most prominent antioxidant, anti-inflammatory, and anti-ß-amyloid effects. The aqueous extract demonstrated a most substantial anti-glycation activity and was rich in phenolics. The ethanol extract from heartwood exhibited the highest cytotoxicity against SW-48, indicating B. sappan heartwood from Java holds promise as antioxidants and may selectively inhibit colorectal cancer.
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Moroccan wetlands host up to half a million wintering birds and provide a stopover for tens of thousands of migrants, while they are inhabited by few nesting species. Most of this avifauna prefers to use the large coastal wetlands or reservoirs, while many species are dispersed across hundreds of small inland wetlands of various types. In this study, we monitored the wintering avifauna of 11 wetlands of the Saïss plain and its adjacent Atlas Mountains (north-center of Morocco), during six wintering seasons (2017-2018 to 2022-2023), with the objective of assessing the importance of this region as a waterbird wintering area. Using the richness of the species, we determine the bird population changes during this pentad and between the different types of wetlands (natural, human-made, and natural wetlands). During this study, we recorded 51 species, belonging to 17 families, among which exist four remarkable birds: the endangered Oxyura leucocephala, the vulnerable Aythya ferina and the near-threatened Aythya nyroca and Limosa limosa. Bird diversity is higher in human-made ecosystems than in peri-urban and natural ecosystems, while the populations' size is similar in urban and non-urban wetlands. With regard to bird conservation, these inland wetlands, mainly the small ones, are threatened by recurrent droughts and various anthropic stressors, which we describe using our observations of the two last decades (2003-2023). The loss of habitat is significant, reaching 348.5 hectares, while the impacts of reduced precipitation and temperature increase are particularly evident in the mountainous natural lakes.
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Phlomis species (Phlomis bucharica Regel and P. salicifolia Regel) have been traditionally used by Uzbek people as stimulant, tonic, diuretic, and in the treatment of ulcers, hemorrhoids, wounds and gynecological problems. In the present study, we characterized the chemical composition of non-polar extracts from P. bucharica and P. salicifolia by high resolution GLC-MS and evaluated their cytotoxicity. Concentrations of hexadecanoic acid in hexane and chloroform extracts were higher in P. bucharica than in P. salicifolia. 1,8- Cineol, camphor, borneol, alfa-terpinol, thymol, and isobornyl acetate were detected in P. bucharica but not in P. salicifolia. About 45 components were identified in P. bucharica and 40 in P. salicifolia. The chloroform extract from P. bucharica showed cytotoxicity in HeLa and HL-60 cells, with IC50 values of 26.07 and 29.42 ug/ml, respectively.
Las especies Phlomis (Phlomis bucharica Regel y P. salicifolia Regel) se han utilizado tradicionalmente por la gente de Uzbekistán como estimulante, tónico, diurético, y en el tratamiento de las úlceras, hemorroides, heridas y problemas ginecológicos. En el presente estudio, hemos caracterizado la composición química de los extractos no polares de P. bucharica y P. salicifolia por GLC-MS de alta resolución y se evaluó su citotoxicidad. Las concentraciones de ácido hexadecanoico en extractos de hexano y cloroformo fueron mayores en P. bucharica que en P. salicifolia. 1,8-cineol, alcanfor, borneol, se detectaron alfa-terpinol, timol, y acetato de isobornilo en P. bucharica pero no en P. salicifolia. Cerca de 45 componentes fueron identificados en P. bucharica y 40 en P. salicifolia. El extracto de cloroformo a partir de P. bucharica mostró citotoxicidad en células HL-60 y HeLa, con valores de CI 50 de 26,07 y 29,42 ug/ml, respectivamente.
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Óleos Voláteis/química , Óleos Voláteis/farmacologia , Phlomis/química , Extratos Vegetais/química , Extratos Vegetais/farmacologia , Cromatografia Gasosa-Espectrometria de Massas/métodos , Ácido Palmítico/análise , Terpenos/análiseRESUMO
Lupinus aschenbornii S. Schauer, Fabaceae, grows in the Central Highlands of Mexico, at altitudes between 2800 to 4300 m above sea level. The alkaloid patterns in organs of L. aschenbornii were analyzed by Gas-Liquid Chromatography-Mass Spectrometry (GLC-MS). Quinolizidine alkaloids (QA) were identified according to their mass fragmentation patterns, in combination with their Kovats retention indeces. Total QA content in organs differed substantially: seed contained 3.3 mg/g dry weight, flowers 2.8 mg/g DW, leaves 1.9 mg/g DW, stems 1.5 mg/g DW, and pods 1.4 mg/g DW. Roots do not accumulate QA and their profiles differed considerably: while seed stored N-formylangustifoline (17 percent), 17-oxolupanine (16 percent), multiflorine (11 percent) and an unidentified alkaloid (n.i.) 2869 (11 percent) as main QA, sparteine was absent. In flowers, sparteine reached 73 percent, in leaves up to 80 percent, in stems up to 32 percent and in pods up to 96 percent. Other QA present were lupanine (32 percent in stem, 9 percent in flower and 7 percent in seed); N-formylangustifoline (9 percent in stem and 4 percent in flower); multiflorine (6 percent in stem and 3 percent in flower). Differences in QA profile might be a strategy of lupins to avoid adaptation of possible predators because the different QA have different pharmacological properties.