Publications by authors named "Wahidah Al-Qahtani"

Selenium nanoparticles (SeNPs) are used in several sectors as antitumor, antimicrobial, and environmental adsorbents. Thus, the present research objective was the production of bacterial-SeNPs as an active and environmentally-friendly antibacterial and adsorbent agents and application into novel nanocomposite filter. From a total of 25 samples (soil, wastewater, and water) obtained from different locations in Egypt, 60 selenium-resistant bacterial isolates were obtained (on a mineral salt medium supplemented with selenium ions).

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  • Anise seeds hold nutritional and therapeutic value, making them beneficial for both animal and human health; this study explores ways to enhance their nutritional and biological properties.
  • Researchers investigated the effects of an endophytic strain, JW0824, isolated from a medicinal plant in Saudi Arabia, on four varieties of anise seeds from Egypt, Tunisia, Syria, and Morocco, and found significant increases in seed weight and oil yields.
  • The study showed that biofortification led to increases in various beneficial compounds like proteins, sugars, flavonoids, and vitamins, particularly in the Egyptian and Tunisian varieties, suggesting that this endophyte could be used to improve seed quality and agricultural practices.
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This study explores the use of algae for phycoremediation, focusing on how and detoxify water contaminated with captan, a common fungicide. The efficiency of these species in absorbing captan and the associated biochemical changes were evaluated to assess their potential for environmental protection. Microalgae were exposed to captan concentrations of 15 and 30 mg/L, and various parameters, including captan uptake, chlorophyll (Chl) a, carotenoid levels, and changes in metabolic profiles (soluble carbohydrates, organic acids, amino acids, and fatty acids), were measured.

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Thallium (Tl), a key element in high-tech industries, is recognized as a priority pollutant by the US EPA and EC. Tl accumulation threatens aquatic ecosystems. Despite its toxicity, little is known about its impact on cyanobacteria.

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Objectives: Moderate daily mocha pot coffee intake has been associated with better mood and cognition in patients with mild vascular cognitive impairment (VCI). Similarly, moderate red wine consumption has shown protective effects on cognitive disorders, including Alzheimer's disease and vascular dementia. The aim of this study was to explore the synergistic relation between red wine and coffee intake on mood and cognitive status in mild VCI patients at risk for dementia.

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This study discusses the micro-level structural details of Cichorieae pollen sources elucidated by scanning electron microscopy (SEM) and explains their symmetry and morphometry. The in-depth knowledge from the electron ultrastructure of Asteraceae pollen has provided insights into enhanced pollen morphology, and the antimicrobial significance of species under study presents novel avenues for their natural defense mechanisms in the development of antimicrobial agents. In this research, both quantitative and qualitative features of pollen were examined.

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The increasing demand for honey purification and authentication necessitates the global utilization of advanced processing tools. Common honey processing techniques, such as chromatography, are commonly used to assess the quality and quantity of valuable honey. In this study, 15 honey samples were authenticated using HPLC and GC-MS chromatographic methods to analyze their pollen spectrum.

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Accelerating safety assessments for novel agrochemicals is imperative, advocating for setups to present pesticide biodegradation by soil microbiota before field studies. This approach enables metabolic profile generation in a controlled laboratory environment eliminating extrinsic factors. In the current study, ten different soil samples were utilized to check their capability to degrade Ametoctradin by their microbiota.

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Contamination of the environment due to speedup of anthropogenic activities has become a serious threat to modern humanity. Among the contaminants, the new emerging concern is the heavy metal (HM) contamination in the environment. Because the persistence and harmfulness of heavy metals affect the ecosystem and the health of plants, animals, and humans, they are the most toxic substances in the environment.

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Background: Mounting studies indicate that oxidative stress (OS) significantly contributes to tumor progression. Our study focused on bladder urothelial cancer (BLCA), an escalating malignancy worldwide that is growing rapidly. Our objective was to verify the predictive precision of genes associated with overall survival (OS) by constructing a model that forecasts outcomes for bladder cancer and evaluates the prognostic importance of these genetic markers.

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A population of entomopathogenic nematodes, belonging to the Feltiae-clade and labelled J13, was discovered in the agricultural soils of the hilly regions of the Union territory of Jammu and Kashmir, India. Based on morphological, morphometric, and molecular analyses, the nematodes were identified as Steinernema feltiae. The J13 nematode isolate was tested in a laboratory assay for its pathogenicity against six major pests of vegetable crops: Pieris brassicae, Plutella xylostella, Helicoverpa armigera, Agrotis iplison, Trichoplusia ni, and Exelastis atomosa.

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Botanical surveys in all parts of Pakistan are mainly focused on ethnomedicinal uses of plants, and very little attention has been paid to documenting edible wild fruit species (EWFs). Multiple methodologies and tools were used for data collection. In a recent survey 74 EWF species belonging to 29 families were documented, including their medicinal uses for the treatment of various diseases.

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Micromorphological visualization of plant surface peculiarities provides valuable characters for the precise identification of plant species. Invasive alien species, introduced outside their native range, pose significant ecological, and health challenges. This study focuses on micromorphological investigations of selected invasive plant species belonging to the families Amaranthaceae, Asteraceae, Moraceae, Crassulaceae, Cannabaceae, Fabaceae, Commelinaceae, and Oxalidaceae.

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Objectives: Oncogenic processes in cancer are frequently marked by the dysregulation of critical genes, and PTPN3 (Protein Tyrosine Phosphatase, Non-Receptor Type 3) has emerged as a gene of interest due to its potential involvement in various cellular processes. This study delves into the diagnostic and prognostic implications of PTPN3 in a pan-cancer context.

Methods: Leveraging comprehensive genomic datasets and experimental validation, we aimed to shed light on the role of PTPN3 in cancer.

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  • The study aimed to identify and validate key biomarkers that can improve the diagnosis and prognosis of breast cancer (BC), along with exploring their potential as therapeutic targets.* -
  • Researchers used a combination of literature reviews, bioinformatic analysis, and experimental validation, ultimately identifying four significant biomarkers: progesterone receptor (PGR), epidermal growth factor receptor (EGFR), estrogen receptor 1 (ESR1), and ERBB2.* -
  • Results showed that PGR and EGFR were down-regulated, while ESR1 and ERBB2 were up-regulated in BC samples, indicating their importance in diagnosing and predicting patient outcomes, with implications for potential drug therapy.*
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  • Vegetable waste, often disregarded despite its nutritional and practical benefits, can be effectively utilized to produce silver nanoparticles (AgNPs) in an eco-friendly way, with this study focusing on using potato peels and coriander stems.
  • The synthesis involved extracting compounds from the vegetable waste and analyzing the resulting AgNPs through various methods including UV-spectroscopy, scanning electron microscopy, and X-ray diffraction, which confirmed their characteristics and biological activity.
  • The synthesized AgNPs displayed significant antimicrobial, cytotoxic, antidiabetic, antitumor, and antioxidant properties, outperforming crude extracts, indicating the potential of utilizing vegetable waste for valuable applications.
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Rice () is a major cereal crop that balances the food demand of the worldwide population. The crop quality drops daily due to their exposure to biotic and abiotic stresses, especially pathogens. It needs to be improved to maintain the consumption level to cope with increasing population demands for food.

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Currently available data suggest that the union of a balanced diet and an overall healthy lifestyle may determine an amelioration in several clinical parameters and in the quality of life for patients with MS (pwMS). The study objective was to investigate the possible difference in MS severity in a group of Italian patients with MS based on their adherence to Mediterranean Diet (MedDiet). Eating habits were collected through a validated 110-items Food Frequency Questionnaire, the Medi-Lite score was used for adherence to MedDiet evaluation.

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Bifenthrin is a type I broad spectrum pyrethroid insecticide widely employed in urban and agricultural settings with little knowledge about its biodegradation. Bifenthrin was subjected to a 35 days incubation period in which it was degraded by five fungal strains named as Aspergillus niger, Aspergillus flavus, Aspergillus fumigatus, Penicillium chrysogenum, and Lasiodiplodia theobromae. Penicillium chrysogenum was found to be extremely effective in degrading bifenthrin up to 85%.

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  • Germination models are important for predicting seed germination in crops, particularly under varying water potentials and temperatures.
  • The study found that changes in temperature and water potential significantly impacted various germination metrics such as germination percentage and rate.
  • Antioxidant enzyme activity varied with water potential and temperature, suggesting a link between energy allocation to antioxidant mechanisms and overall germination performance under stress conditions.
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Microscopic techniques can be applied to solve taxonomic problems in the field of plant systematic and are extremely versatile in nature. This study was focused on the new approaches to visualizing the imaging, tool to cover the micro-structural techniques applied to the pollen study of Amaranthaceae floral biology. In this detailed study, we used light microscopy and scanning electron microscopy to examine the shape and changes in pollen of 16 types of Amaranthaceae plants from the salty arid zone of Riyadh Saudi Arabia.

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Bimetallic nanoparticles have received much attention recently due to their multifunctional applications, and synergistic potential at low concentrations. In the current study, bimetallic boron oxide-zinc oxide nanoparticles (BO-ZnO NPs) were synthesized by an eco-friendly, and cost-effective method through the utilization of gum arabic in the presence of gamma irradiation. Characterization of the synthesized bimetallic BO-ZnO NPs revealed the successful synthesis of bimetallic NPs on the nano-scale, and good distribution, in addition to formation of a stable colloidal nano-solution.

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Background: Previously reported breast invasive carcinoma (BRIC) biomarkers have compromised utility because of their heterogeneity-specific behaviors. The goal of this study was to find BRIC biomarkers that could be used in spite of the heterogeneity barrier.

Methods: Previously reported BRIC-linked hub genes were obtained from the literature via a search technique.

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Head and neck squamous cell carcinoma (HNSC) is one of the most lethal malignancies around the globe. Due to its complex nature, the diagnostic and prognostic signatures of HNSC remain poorly understood. This study was launched to identify signature genes and their signaling pathways related to the development of HNSC.

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