Renoprotective effect of the Echinodorus macrophyllus in induced renal injury / Efeito renoprotetor do Echinodorus macrophyllus na lesão renal induzida

OBJECTIVE: Evaluating the renoprotective effect of Echinodorus macrophyllus in acute kidney injury induced by cyclophosphamide in rats. METHODS: Experimental research with Wistar rats, male adults, distributed into groups, namely: Control - administration of 1.5 ml sodium chloride 0.9% intraperitoneally; Echinodorous - administration of 2g/kg of Echinodorus macrophyllus by gavage for five days; Cyclophosphamide - administration of cyclophosphamide 150mg/kg intraperitoneally; and Cyclosphosphamide + Echinodorus - administration of Echinodorus macrophyllus and cyclophosphamide. Renal function (creatinine clearance) and the oxidative metabolites (peroxides and urinary substances reactive to thiobarbituric acid, thiols in kidney tissue) were evaluated. RESULTS: Preconditioning with Echinodorus macrophyllus elevated the creatinine clearance and reduced the levels of oxidative metabolites. CONCLUSION: The antioxidant action of Echinodorus macrophyllus has demonstrated renoprotective effects evidenced by the reduction of oxidative stress in acute renal injury induced by cyclophosphamide in rats. .

OBJETIVO: Avaliar o efeito renoprotetor do Echinodorus macrophyllus na lesão renal aguda induzida pela ciclofosfamida em ratos. MÉTODOS: Pesquisa experimental com ratos Wistar, machos e adultos que foram distribuídos nos grupos: Controle - administração de 1,5 ml de cloreto de sódio a 0,9,% por via intraperitoneal, Echinodorous - administração de 2g/kg de Echinodorus macrophyllus por gavagem durante cinco dias, Ciclofosfamida - administração de ciclofosfamida 150mg/kg por via intraperitoneal, Ciclosfofamida + Echinodorus - administração de Echinodorus macrophyllus e ciclofosfamida. Foram avaliados a função renal (clearance de creatinina) e os metabólitos oxidativos (peróxidos e substâncias reativas ao ácido tiobarbitúrico urinários, tióis no tecido renal). RESULTADOS: O pré-condicionamento com Echinodorus macrophyllus elevou o clearance de creatinina e reduziu os níveis dos metabólitos oxidativos. CONCLUSÃO: A ação antioxidante do Echinodorus macrophyllus demonstrou efeito renoprotetor evidenciado pela redução do estresse oxidativo na lesão renal aguda induzida pela ciclofosfamida em ratos. .

Changes in the essential oil composition of leaves of Echinodorus macrophyllus exposed to

Leaves of Echinodorus macrophyllus (Kunth) Micheli, Alismataceae, were exposed to different doses of γ-radiation (0.00, 1.00, 3.00, 5.00, 10.00, and 20.00 kGy) and the chemical composition of their essential oils was investigated. The extractive process of the essential oil was more favored when the leaves were irradiated. The essential oil components were identified by correlation between GC-FID data and retention parameters obtained from the Kováts method. Moreover, GC-MS analyses of the essential oils were correlated with fragmentation profiles in the NIST standard mass fragmentation data bank. The essential oil of E. macrophyllus contains biologically active constituents of different chemical classes. Acyclic monoterpenes and sesquiterpenes showed increase in concentration when the leaves were exposed to γ-radiation. On the other hand, the component concentrations of some chemical classes were lightly decreased, i.e., for bicyclic monoterpenes, diterpenes, triterpenes, carboxylic esters, and carotenoid derivatives.