Antioxidant, antidiabetic, and anticholinesterase potential of Chenopodium murale L. extracts using in vitro and in vivo approaches

Abstract

In this study, Chenopodium murale Linn. extracts have been evaluated for its in vitro antioxidant, enzyme inhibition, and in vivo neuropharmacological properties in streptozotocin (STZ)-induced memory impairment in rat model. First, the plant was subjected to extraction and fractionation, then quantitative phytochemical analysis was performed to estimate the major phytochemical groups in the extract where high amounts of phenolics and saponins were detected in crude and chloroform extract. The highest total phenolic contents, total flavonoid contents, and total tannin content were also recorded in crude extract and chloroform fraction. The in vitro antioxidant potential of chloroform fraction was high with IC50 value of 41.78 and 67.33 μg/mL against DPPH and ABTS radicals, respectively, followed by ethyl acetate fraction. The chloroform fraction (ChMu-Chf) also exhibited potent activity against glucosidase with IC50 of 89.72 ± 0.88 μg/mL followed by ethyl acetate extract (ChMu-Et; IC50 of 140.20 ± 0.98 μg/mL). ChMu-Chf again exhibited potent activity against acetylcholinesterase (AChE) with IC50 of 68.91 ± 0.87 μg/mL followed by ChMu-Et with IC50 of 78.57 ± 0.95 μg/mL. In vivo memory impairment was assessed using the novel object discrimination task, Y-maze, and passive avoidance task. Ex vivo antioxidant enzyme activities and oxidative stress markers like catalase, superoxide dismutase (SOD), malondialdehyde, and glutathione were quantified, and the AChE activity was also determined in the rat brain. No significant differences were observed amongst all the groups treated with crude, chloroform, and ethyl acetate in comparison with positive control donepezil group in connection to initial latency; whereas, the STZ diabetic group displayed a significant fall in recall and retention capability. The blood glucose level was more potently lowered by chloroform extract. The crude extract also increased the SOD level significantly in the brain of the treated rat by 8.01 ± 0.51 and 8.19 ± 0.39 units/mg at 100 and 200 mg/kg body weight (P < 0.01, n = 6), whereas the chloroform extract increased the SOD level to 9.41 ± 0.40 and 9.72 ± 0.51 units/mg, respectively, at 75 and 150 mg/kg body weight as compared to STZ group. The acetylcholine level was also elevated to greater extent by chloroform fraction that might contain a potential inhibitor of acetylcholinesterase. Treatment with C. murale ameliorated cognitive dysfunction in behavioral study, and provided significant defense from neuronal oxidative stress in the brain of the STZ-induced diabetic rats. Thus C. murale Linn. could be an inspiring plant resource that needs to be further investigated for isolation of potential compounds in pure form and their evaluation as a potent neuropharmacological drug.

Antioxidant, antidiabetic, neuroprotective, and phytochemical evaluation of Chenopodium ambrosioides ethanol extract

“…The ethanol extract demonstrated notable protein kinase inhibition that is consistent with results of this study. Our results were also in line with various studies including [37][38][39][40] suggesting ethanolic extracts of C. ambrosioides leaves contain potential phytochemicals that revealed different medicinal, anti-oxidant, and free radical scavenging properties proficiently. It's been widely accepted that flavonoids, a class of naturally occurring phenolic compounds, stand out as a prominent class among natural products.…”

“…They found that C. murale treatment significantly protected the brain of the STZ-induced diabetic rats compared to neuronal damage caused by oxidative stress and improved cognitive dysfunction in behavioral studies which is consistent with our results of this study. [38] Nazir et al [54] investigated the antioxidant and cholinesterase inhibitory properties of Rosa moschata Herrm leaves and fruit methanolic extracts. Leaf extracts showed significantly higher anticholinesterase effects with IC50 values of 40 µg/ml (AChE) and 110 µg/ml (BChE), along with strong DPPH (IC50 = 360 µg/ml) and ABTS (IC50 = 105 µg/ml) radical scavenging capabilities than fruit extracts.…”

Computational Evaluation of Bioactive Compounds from Dysphania ambrosioides Leaves

“…In the [5] and [10] studies, D.ambrosioides leaves were considered as potential source of anti‐bacterial and anti‐fungal effects, which probably could be explained by the presence of caryophyllene oxide who showed. For these therapeutic vertices, the leaves of the plant showed significant antioxidant activity at several scales, [11a] this could be explained by the presence of phytocompounds such as caryophyllene oxide which showed the highest inhibition towards Cytochrome P450 (PDBID : 1OG5), and NAD(P)H Oxidase (PDBID :2CDU). Other cardiovascular studies have been carried out, which were essentially based on the study of anti‐inflammatory, [13b] anti‐diabetic, [11a] antihypertensive [12] and vasodilating activity [14] of D.ambrosioides leaves, and significant therapeutic potentials of these leaves have been shown against several anomalies.…”

“…For these therapeutic vertices, the leaves of the plant showed significant antioxidant activity at several scales, [11a] this could be explained by the presence of phytocompounds such as caryophyllene oxide which showed the highest inhibition towards Cytochrome P450 (PDBID : 1OG5), and NAD(P)H Oxidase (PDBID :2CDU). Other cardiovascular studies have been carried out, which were essentially based on the study of anti‐inflammatory, [13b] anti‐diabetic, [11a] antihypertensive [12] and vasodilating activity [14] of D.ambrosioides leaves, and significant therapeutic potentials of these leaves have been shown against several anomalies. Our results indicate that caryophyllene oxide, which is among the main phytochemical components, could be responsible for the observed experimental effects, showing the best affinity values for anti‐acterial (PDBID 4URM), anti‐diabetic (PDBID 2ZOX), anti‐inflammatory (PDBID 6COX), antihypertensive (PDBID 1R42 and 1UZF) and vasodilator receptors (PDBID 4RA4 and 4ZKF).…”

“…Some of these experimental studies have referred to analysis of the leaves phytochemical profile, which they have found to be rich in bioactive compounds. These molecules exhibit profound and interesting pharmacological activities such as antibacterial, [9] Anti‐fungal, [10] anti‐diabetic, [11] antihypertensive, [12] Anti‐oxidant [5,7, 11a] anti‐inflammatory [3,13] and vasodilatory activities [14] …”