Publications by authors named "Abeer Mohamed"

To feed the world's growing population, the agriculture sector has recently had to strike a balance between reducing its detrimental effects on ecosystems and human health and boosting resource efficiency and production. In reality, pesticides and fertilizers are vital to agriculture and are useful instruments that farmers can employ to increase yield and guarantee steady productivity throughout the seasons under both favorable and unfavorable conditions. Therefore, in the present study, fertilizing with potassium citrate as a foliar spray and humic acid (HA) as a soil application allowed for the evaluation of vegetative growth parameters (plant height, number of leaves/plant), total phenolic content, total carbohydrate, antioxidant activity, the essential oil (EO) composition, and bulb yield of garlic (Allium sativum L.

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Background: Salvadora persica (miswak) is known to exert antibacterial, antifungal, antioxidant, and anticariogenic effects by elevating the pH of plaque after the consumption of sucrose.

Objectives: The study aimed to compare the effectiveness of S. persica and probiotic yogurt in the remineralization of tooth enamel on artificially produced enamel lesions.

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Background: Empowerment is a broad concept seen as a critical approach for helping older adults who lack power to gain control over various aspects of their lives, including their health-protective behaviors.

Aim: The study investigated the association between health-related empowerment and health-protective behaviors in older adults.

Design: A cross-sectional correlational research design was used by recruiting a convenient sample of 200 older adults.

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Herein, we report the synthesis of a series of new fourteen iodoquinazoline derivatives 7a-c to 13a-e and their evaluation as potential anticancer agents via dual targeting of EGFR and VEGFR-2. The new derivatives were designed according to the target receptors structural requirements. The compounds were evaluated for their cytotoxicity against HepG2, MCF-7, HCT116 and A549 cancer cell lines using MTT assay.

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Fifteen new 1-alkyl-6-iodoquinazoline derivatives 5a-d to 9a-e were designed and synthesized and their anticancer activities were evaluated against HepG2, MCF-7, HCT116 and A549 cancer cell lines dual targeting of EGFR and VEGFR-2. The newly synthesized compounds were designed based on the structure requirements of the target receptors and were confirmed using spectral data. Compound 9c showed the highest anticancer activities with EC = 5.

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Background: Climate change is a rapidly evolving public health problem warranting global attention in the 21st century. The World Health Organization declared that climate illiteracy is highly prevalent among older adults, especially in lower- and middle-income nations.

Aim: To determine the effect of the Information-Motivation-Behavioral Skills Model-based intervention for climate change management practices among older adults.

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The application of compost and metallic nanoparticles has a significant impact on the productivity and chemical composition of horticulture plants. In two subsequent growing seasons, 2020 and 2021, the productivity of L. plants treated with various concentrations of silver nanoparticles (AgNPs) and compost was assessed.

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Diabetic retinopathy (DRET) triggers vision loss in adults, however, little therapeutic options are existing. Memantine is an anti-Alzheimer drug that antagonizes the activity of glutamate at N-methyl-D-aspartate (NMDA) receptors. Glutamate and thioredoxin-interacting protein (TXNIP) are known to be overexpressed in diabetic retinas and can produce activation of NOD-like receptor protein 3 (NLRP3) with subsequent secretion of interlukin-1β.

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Background: 2-Amino thiophene derivatives are important compounds not only for their uses in many heterocyclic reactions but also due to their wide range of pharmaceutical and biological activities.

Objective: The aim of this work was to explore a number of new heterocyclic derivatives, studying their inhibitions toward cancer cell lines and studying their structure activity relation ship.

Methods: Alkylation of 2-amino-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carbonitrile was achieved through its reaction with chloroacetone and 2-bromo-1-(4-aryl)ethanone derivatives to give compounds 3 and 11a-c.

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Introduction: Older adults with Alzheimer's disease (AD) experience drastic changes in their physical and mental abilities. AD patients became heavily dependent on their caregivers for everyday functions, which have significant implications not only for them but also for their caregivers. So, many AD caregivers experienced an increased level of depression and anxiety symptoms, lower perceived control, and higher burden compared to non-AD caregivers.

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There are many technological innovations in the field of agriculture to improve the sustainability of farmed products by reducing the chemicals used. Uses of biostimulants such as plant extracts or microorganisms are a promising process that increases plant growth and the efficient use of available soil resources. To determine the effects of some biostimulants' treatments on the photosynthetic pigments and biochemicals composition of zucchini plants, two experiments were conducted in 2019 and 2020 under greenhouse conditions.

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Combining short-acting and long-acting insulin analogs was a real challenge that was overcome by NovoNordisk through the co-formulation of insulin aspart and insulin degludec in single-dosage form. The proposed study provides a simple, short, and reliable HPLC method with diode array detection that is developed and validated for the simultaneous determination of insulin aspart and insulin degludec in human plasma. The proposed method achieved good separation between the two analytes utilizing a C8 column at 35°C in a very short run time (6 min), with a simple, low-cost, and reliable extraction method through precipitation of plasma protein.

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Background: Trees are good sources of bioactive compounds as antifungal and antioxidant activities.

Methods: Management of six molecularly identified isolates (F. oxy 1, F.

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Stress testing of biopharmaceuticals plays an important role in preparation of their stability profiles through investigation of possible degradation pathways and identification of degradation products, so in this study Insulin Degludec which is a new generation ultra-long-acting basal insulin is subjected to stress conditions as different temperatures, different pH, oxidation, mechanical agitation, and repeated freeze and thaw cycles to generate possible degradation products and aggregation that are investigated by two new validated RP-HPLC and SEC-HPLC methods in addition to dynamic light scattering (DLS) and native polyacrylamide gel electrophoresis (Nu-PAGE). SEC-HPLC was used to investigate formation of aggregates whose results were correlated with those obtained from DLS and Nu-PAGE, while RP-HPLC was used to investigate any possible chemical modifications. The Proposed RP-method had limit of detection (LOD) and limit of quantitation (LOQ) of 0.

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Background: Chronic tonsillitis (CT) is a common inflammatory illness in children, and serum antistreptolysin O titer (ASOT) is a common investigation performed for these cases and considered a perfect sign for tonsillectomy.

Objective: To evaluate the expression of tonsillar T-and B-lymphocytes markers in relation to seropositive or seronegative ASOT in cases of CT.

Materials And Methods: Thirty children (15 males and 15 females) aged 6-10 years were divided equally into two groups: Group A seropositive ASOT (≥400 IU) and Group B seronegative ASOT (<400 IU).

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Background: Dimedone is considered as one of the most important classes of compounds belonging to cyclohexan-1,3-dione. Such groups of compounds were considered as precursors for many pharmaceutically active heterocyclic compounds.

Objective: The target molecules in this work were synthesized from arylhydrazones of dimedone with different substituents enhancing the study of their structure-activity relationship.

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Background: Recently, products of Multi-Component Reactions (MCR's) acquired special attention due to their wide range of pharmacological activities especially therapeutic activities. In the market it was found that many pharmacological drugs containing the pyran and pyridine nucleus that were produced through MCR's were found.

Objective: This work aims to synthesize target molecules not only possess anti-tumour activities but also c-Met and prostate cancer inhibitors.

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Background And Aim: Flinders Technology Associates (FTA) cards simplify sample storage, transport, and extraction by reducing cost and time for diagnosis. This study evaluated the FTA suitability for safe transport and storage of Gram-positive and Gram-negative bacterial cells of animal origin on its liquid culture form and from organ impression smears (tissues) under the same routine condition of microbiological laboratory along with detecting their nucleic acid over different storage conditions.

Materials And Methods: Increase in bacterial count from 10 to 10 (colony-forming units/mL) of 78 isolates representing seven bacterial species was applied onto cards.

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Objective: We sought to investigate whether there is any additional effect of coupled cognitive and physical rehabilitation compared to exercise training alone on walking and cognitive performance in individuals with relapsing remitting multiple sclerosis (RRMS).

Methods: A randomized controlled trial was conducted from March to November 2015 with 30 individuals with RRMS (aged 20 to 50 years; 21 women, 9 men), who underwent detailed medical and neurologic examination. They were randomly allocated using sealed envelopes to either the study group, who received physical and cognitive rehabilitation (dual-task training), or the control group, who received physical rehabilitation alone.

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Breast hamartomas are uncommon slowly growing lesions. Imaging findings are specific and usually relay on common mammographic picture of breast within breast appearance. I present a case of 48 years female patient, with recent history of palpable right breast mass, the imaging findings are atypical for breast hamartoma.

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In the present study, the enhancement of the production of essential oils (EOs) was studied by treating plants with ascorbic acid (AA) and tryptophan (Trp) at concentrations of 100, 200 and 300 mg/L and leaf extract (MLE) at 2.5%, 5% and 10% as foliar applications during the seasons 2018-2019. The toxicities of the EOs were assayed against four seed-borne fungi (, , and ) isolated from rice grains ().

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Recently, a wide range of biological and pathological roles of long noncoding RNAs (lncRNAs) have been discovered. However, the potential role of circulating lncRNAs H19 and GAS5 in type 2 diabetes mellitus (T2DM) and diabetic retinopathy (DR) is not clear. Here, we assessed the plasma levels of H19 and GAS5 lncRNAs in T2DM patients with/without DR and evaluated if H19 and GAS5 pre-treatment plasma levels are a predictor of early response to a single aflibercept dose in DR subgroup.

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Alopecia areata (AA) is a non-scarring hair loss of autoimmune etiology. The autoimmune regulator () gene is believed to be an important driver in AA pathogenesis. Genetic variants can alter mRNA expression levels which may provoke an autoimmune response.

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Background: Emerging evidence indicates group-specific component () variants are associated with ethnicity. We aimed to investigate the association of variants and protein expression level with T2DM and diabetic nephropathy (DN) in Saudi patients.

Subjects And Methods: A total of 200 participants (120 T2DM/80 controls) were genotyped for -rs7041/-rs4588 by real-time polymerase chain reaction.

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The present study describes the possibility of using some essential oils and monoterpens as bioagents against the growth of Ralstonia solanacearum, a causal bacterium of potato brown rot disease. Eight isolates of the bacterium were recovered from infected potato tubers, showing typical symptoms of the disease, Isolates were identified as R.solanacearum phylotype II, based on biochemical and physiological characteristics, as well as, at the molecular level through PCR analysis.

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