Ribeiro Kátia Regina, Bellard E Silva Rúbia, Rodrigues João Paulo Costa, Coimbra Mairon César, Pereira Laura Jéssica, Alves Emmilly de Oliveira, de Oliveira Flávio Martins, Pereira Marx Osório Araújo, Gil Eric de Souza, Carollo Carlos Alexandre, Cassemiro Nadla Soares, da Silva Camile Aparecida, Carvalho Pablinny Moreira Galdino de, Pinto Flávia Carmo Horta, Ferreira Renan Diniz, Bello Zakariyya Muhammad, Melo Edilene Santos Alves de, Rocha Marina Andrade, Silva Ana Gabriela, Ribeiro Rosy Iara Maciel Azambuja, Soares Adriana Cristina, Couto Renê Oliveira do
Laboratory of Pharmaceutical Development (LADEF), Federal University of São João del-Rei, Midwest Campus Dona Lindu, Divinópolis 35501-296, Minas Gerais, Brazil.
Pharmacology of Pain and Inflammation Laboratory, Federal University of São João del-Rei, Midwest Campus Dona Lindu, Divinópolis 35501-296, Minas Gerais, Brazil.
Plants (Basel). 2025 Jun 30;14(13):2008. doi: 10.3390/plants14132008.
widely used in Brazilian folk medicine, is known for its analgesic and anti-inflammatory properties. This study evaluated the antioxidant capacity and the antinociceptive and anti-inflammatory mechanisms of the standardized spray-dried hydroethanolic leaf extract (SDCi). Phytochemical analysis showed that SDCi contains 21.78 ± 0.82 mg/g polyphenols, 49.69 ± 0.57 mg/g flavonoids, and 518.81 ± 18.02 mg/g phytosterols. UFLC-DAD-MS identified iridoid glycosides, p-coumaric acid glycosides, flavones, and unsaturated fatty acids. Antioxidant assays revealed an IC of 301.6 ± 38.8 µg/mL for DPPH scavenging and an electrochemical index of 6.1 μA/V. , SDCi (100-1000 mg/kg, p.o) did not impair locomotor function (rotarod test) but significantly reduced acetic acid-induced abdominal writhing and both phases of the formalin test at higher doses (300 and 1000 mg/kg). The antinociceptive effects were independent of α-2 adrenergic receptors. SDCi also increased latency in the hot-plate test and reduced paw edema in the carrageenan model, accompanied by decreased IL-1β and increased IL-10 levels. Histological analysis showed a 50% reduction in inflammatory cell infiltration. These findings support SDCi as an effective anti-inflammatory and antinociceptive phytopharmaceutical intermediate, with potential applications in managing pain and inflammation.
在巴西民间医学中广泛使用,以其镇痛和抗炎特性而闻名。本研究评估了标准化喷雾干燥水乙醇叶提取物(SDCi)的抗氧化能力以及抗伤害感受和抗炎机制。植物化学分析表明,SDCi含有21.78±0.82毫克/克多酚、49.69±0.57毫克/克黄酮类化合物和518.81±18.02毫克/克植物甾醇。超高效液相色谱-二极管阵列-质谱联用仪鉴定出环烯醚萜苷、对香豆酸苷、黄酮和不饱和脂肪酸。抗氧化试验显示,DPPH清除的半数抑制浓度为301.6±38.8微克/毫升,电化学指数为6.1微安/伏。此外,SDCi(100 - 1000毫克/千克,口服)不损害运动功能(转棒试验),但在较高剂量(300和1000毫克/千克)下显著减少乙酸诱导的腹部扭体反应以及福尔马林试验的两个阶段。抗伤害感受作用不依赖于α-2肾上腺素能受体。SDCi还增加了热板试验中的潜伏期,并减轻了角叉菜胶模型中的爪肿胀,同时伴随着白细胞介素-1β水平降低和白细胞介素-10水平升高。组织学分析显示炎症细胞浸润减少了50%。这些发现支持SDCi作为一种有效的抗炎和抗伤害感受植物药中间体,在疼痛和炎症管理方面具有潜在应用价值。