This study was designed to evaluate the possible mechanisms through which Echinops spinosus (ES) extract demonstrates nephroprotective effect on the paracetamol acetominophen (N-acetyl-p-aminophenol (APAP)) induced nephrotoxicity in rats. Twenty-four Swiss albino rats were divided into four groups (six rats each). The placebo group was orally administered sterile saline, the APAP group received APAP (200 mg·kg–1·day–1 i.p.) daily, the ES group was given ES extract orally (250 mg/kg), and the APAP + ES group received APAP as for the APAP group and administrated the ES extract as for the ES group. Pretreatment of methyl alcohol extract of ES reduced the protein expression of inflammatory parameters including cyclooxygenase-2 and nuclear factor κB in the kidney. It also reduced the mRNA gene expression of tumor necrosis factor-α and interleukin-1β. The ES extract compensated for deficits in the total antioxidant activity, suppressed lipid peroxidation, and amended the APAP-induced histopathological kidney alterations. Moreover, ES treatment restored the elevated levels of urea nitrogen in the blood and creatinine in the serum by APAP. The ES extract attenuated the APAP-induced elevations in renal nitric oxide levels. We clarified that the ES extract has the potential to defend the kidney from APAP-induced inflammation, and the protection mechanism might be through decreasing oxidative stress and regulating the inflammatory signaling pathway through modulating key signaling inflammatory biomarkers.
Global climate change is a significant challenge that will significantly lower crop yield and staple grain quality. The present investigation was conducted to assess the effects of the foliar application of either Si (1.5 mM) or Si nanoparticles (1.66 mM) on the yield and grain quality attributes of two wheat genotypes (Triticum aestivum L.), cv. Shandweel 1 and cv. Gemmeiza 9, planted at normal sowing date and late sowing date (heat stress). Si and Si nanoparticles markedly mitigated the observed decline in yield and reduced the heat stress intensity index value at late sowing dates, and improved yield quality via the decreased level of protein, particularly glutenin, as well as the lowered activity of α-amylase in wheat grains, which is considered a step in improving grain quality. Moreover, Si and nanoSi significantly increased the oil absorption capacity (OAC) of the flour of stressed wheat grains. In addition, both silicon and nanosilicon provoked an increase in cellulose, pectin, total phenols, flavonoid, oxalic acid, total antioxidant power, starch and soluble protein contents, as well as Ca and K levels, in heat-stressed wheat straw, concomitant with a decrease in lignin and phytic acid contents. In conclusion, the pronounced positive effects associated with improving yield quantity and quality were observed in stressed Si-treated wheat compared with Si nanoparticle-treated ones, particularly in cv. Gemmeiza 9.
P ULICARIA UNDULATA is one of the aromatic annual herbs used in folk medicine in Egypt. The aerial parts of P. undulata plants were collected from the Red sea coastal desert during the flowering stage and used for phytochemical analysis. It was revealed that P. undulata aerial portions contain phenols, flavonoids terpenoids, saponins, alkaloids, glucosinolates and cardiac glycosides highlighting its participation in drug development and using as an alternative strategy to the harmful synthetic fungicides. The greater accumulation of the bioactive compounds in the methanolic extract was comparable with its higher antioxidant capacity and IC50 value as compared with those of the petroleum ether extract. The GC-MS analysis revealed the occurrence of ten bioactive phytocomponents including cyclotrisiloxane, hexamethyl-, cyclotetrasiloxane, octamethyl-, cyclopentasiloxane, decamethyl, dodecanoic acid, methyl ester, tetrafluorophthalonitrile, gamma-Sitosterol,
The negative impacts of fossil fuel on the environment should be replaced by clean and sustainable energy sources worldwide. Therefore, the use of biodiesel as a clean energy source is crucial. Biodiesel is produced from various natural resources through a transesterification process. Considering the importance of this topic, this study focuses on the assessment of oil properties of Thymelaea hirsuta and Echinops spinosus as primary sources for biodiesel production. The two investigated plants were collected from the Western Desert of Egypt. The results showed that the lignocellulosic content was about 57.3 and 79.8 g/100 g in E. spinosus and 59.1 and 82.8 g/100 g in T. hirsuta, respectively. The two investigated samples showed variable lipid contents (30.2–76.1%). The GC-MS fatty acid profile characterized seven FAs in E. spinosus and twelf FAs in T. hirsuta. The greatest CN was calculated in T. hirsuta (379.2) compared to the lowest in E. spinosus (229.9). Furthermore, the values of saponification number (SN) were 27.9 in E. spinosus and 16.07 in T. hirsuta. The value of higher heating value (HHV) was about 47.5 MJ/kg in E. spinosus and 48.3 MJ/kg in T. hirsuta. Meanwhile, T. hirsuta exhibited a higher induction period (IP) value (19.3 h) comparable to that of E. spinosus (4.3 h). The results revealed that both plants are potential sources for biodiesel production according to various international standards for biodiesel production, and this work appears to be one of the first reports regarding such wild xerophytic plants as promising new primary sources for biodiesel production in Egypt.
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