Publications by authors named "Asmaa Owis"

Recently, water scarcity has been a substantial problem facing agriculture in Egypt, with a great impact on food security and hence makes it a challenge to satisfy food demand. An aquaponic system with minimum water needs is considered a substitute technique to meet the demand of food shortages. Celery () is a widely cultivated herb belonging to the family Apiaceae and widely consumed as a popular ingredient in a wide range of dishes and food recipes.

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Expression of concern for 'The anti-Alzheimer potential of : an investigation supported by and approaches' by Abeer H. Elmaidomy , , 2022, , 11769-11785, https://doi.org/10.

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Article Synopsis
  • The research focuses on natural cosmeceuticals due to their safety and minimal side effects, exploring botanical sources for skincare antioxidants.
  • A new phytochemical compound, (-) catechin-(2→1',4→2')-phloroglucinol, was identified along with five others, confirming their structures using advanced techniques like NMR.
  • The study evaluated the antioxidant and enzyme-inhibiting activities of these compounds, revealing that some, like isorhamnetin 3--rutinoside, significantly outperformed standard drugs in inhibiting important skin enzymes.
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is a genus of family Arecaceae and widely grown in tropical areas. The phytochemical analysis of the leaves and fruits of two species, and were carried out using UPLC/MS and determination of the total phenolic and total flavonoid contents, in addition to the isolation and identification of five phenolic compounds and one fatty acid from fruits. The total phenolic compounds varied from 19.

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Background: Cryptosporidiosis is a crucial zoonotic global health concern which can be treated by alternative medicinal plants extracts.

Aim Of The Study: The study was carried out to assess the therapeutic efficacy of Citrus sinensis peel ethanolic extract on Cryptosporidium-infected mice.

Methods: Two doses of Citrus sinensis extract; high dose (30 mg/kg) and low dose (15 mg/kg) were investigated compared to the common commercial drug nitazoxanide (NTZ).

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In late December 2019, a pandemic coronavirus disease 2019 (COVID-19) emerged in Wuhan, China and spread all over the globe. One of the promising therapeutic techniques of viral infection is to search for enzyme inhibitors among natural phytochemicals using molecular docking to obtain leads with the least side effects. The COVID-19 virus main protease (M) is considered as an attractive target due to its pivotal role in controlling viral transcription and replication.

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Hepatocellular carcinoma (HCC) is one of the most fatal cancers around the world and remain asymptomatic in early stage. An alcoholic extract prepared from leaves of L. (Tropaeolaceae) was assessed for its potential activity against diethylnitrosamine-induced liver carcinoma .

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Several studies are now underway as a worldwide response for the containment of the COVID-19 outbreak; unfortunately, none of them have resulted in an effective treatment. L. (Salvadoraceae), commonly known as meswak, is one of the popular plants used by Muslims as an oral hygiene tool.

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Lam. is a rare herbaceous annual plant, with a well-known richness of isoquinoline alkaloids. It is threaten due to expansion on construction in the Mediterranean coastal region.

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Legume sprouts are a fresh nutritive source of phytochemicals of increasing attention worldwide owing to their many health benefits. Nuclear magnetic resonance (NMR) was utilized for the metabolite fingerprinting of 4 major legume sprouts, belonging to family Fabaceae, to be exploited for quality control purposes. Thirty-two metabolites were identified belonging to different classes, i.

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In December 2019, an outbreak of coronavirus disease 2019 (COVID-19) commenced in Wuhan, China and affected around 210 countries and territories in a matter of weeks. It has a phylogenetic similarity to SARS-CoV and it was named coronavirus 2 (SARS-CoV-2) and caused severe acute respiratory syndrome that could lead to death. One of the promising therapeutic strategies for virus infection is the search for enzyme inhibitors among natural compounds using molecular docking in order to obtain products with minimal side effects.

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Rose-scented geranium, L'Hérit. (Geraniaceae), is an economically important plant. GC-MS analysis of the essential oil, prepared by hydro-distillation from this plant species, showed the presence of iso-menthone (15.

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Silymarin prepared from the fruits of (L.) Gaertn. (Asteraceae) has long been used for the treatment of liver disorders.

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Quantitative correlations between the contents of the flavonolignans silychristin A and silybins A/B provide biosynthetic clues that support a pathway in which one mesomeric form of a taxifolin radical is undergoing an oxidative coupling with a coniferyl alcohol radical. The flavonolignan content and patterns reported in the literature for 53 samples, representing populations of the plant growing in different parts of the world, were subject to a meta-analysis. Linear regression analyses were carried out on these data sets, and a mathematical model was derived that predicts the content of silychristin A relative to the metabolomic pattern of its congeners.

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Bioassay-guided fractionation and chemical investigation of Colvillea racemosa stems led to identification of two new α, β-dihydroxydihydrochalcones, colveol A (1) and colveol B (2) along with fifteen known compounds. The structures were elucidated via interpretation of spectroscopic data. The absolute configurations of the dihydrochalcones 1 and 2 were assigned by a combination of chemical modification and electronic circular dichroism data.

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Flavonolignans constitute an important class of plant secondary metabolites formed by oxidative coupling of one flavonoid and one phenylpropanoid moiety. The standardized flavonolignan-rich extract prepared from the fruits of Silybum marianum is known as silymarin and has long been used medicinally, prominently as an antihepatotoxic and as a chemopreventive agent. Principal component analysis of the variation in flavonolignan content in S.

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Context: Eruca sativa Mill. (Brassicaceae), commonly known as rocket salad, is a popular leafy-green vegetable with many health benefits.

Objective: To evaluate the antidiabetic activities of this plant in major insulin-responsive tissues.

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Cordia boissieri A. DC. (Boraginaceae) is traditionally used as an herbal remedy for diabetes by Hispanic women in Southwestern USA.

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Background: Carob - Ceratonia siliqua L., commonly known as St John's-bread or locust bean, family Fabaceae - is one of the most useful native Mediterranean trees. There is no data about the chromatography methods performed by high performance liquid chromatography (HPLC) for determining polyphenols in Egyptian carob pods.

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