Publications by authors named "Sayed S"

Drawing upon 152 in-depth qualitative interviews with residents in Austria carried out in the first year of the pandemic, this article discusses how people's experiences with COVID-19 policies reflect and reshape state-citizen relations. Coinciding with a significant government crisis, the first year of COVID-19 in Austria saw pandemic measures justified with reference to a biological, often medical understanding of health that framed disease prevention in terms of transmission reduction, often with reference to metrics such as hospitalisation rates, etc. Instead of using this biomedical frame, our interviewees, however, drew attention to biopsychosocial dimensions of the crisis and problematised the entanglements between economy and health.

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New amide derivatives of the natural product 5,6,7-trimethoxyflavanone were designed as multifunctional antiproliferative molecules against blood cancer and the associated inflammatory conditions. The targeted compounds were synthesized efficiently in three linear steps employing known chalcone starting materials. Compounds 2h, 2i, 2l, 2t, 2v and 2x having bromo or nitro substituted-phenyl rings elicited potential inhibitory effects on macrophages production of nitric oxide, PGE and TNF-α which are proinflammatory mediators involved in tumorigenesis and progression of blood cancer.

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  • The study introduces a new method for modifying the surfaces of Gram-positive bacteria using a technique called tyrosinase-catalyzed oxidative coupling reaction (TyOCR), which is faster and more efficient than traditional metabolic labeling.
  • Unlike other methods, this approach directly alters bacterial cell walls using phenol-tagged small molecules, while Gram-negative bacteria remain unaffected due to their outer membrane.
  • The research also showcases the ability to attach various materials to these modified bacteria, enabling purification and detection of bacterial strains using a biotin-avidin system.
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Histone post-translational modification is one of the most studied factors influencing epigenetic regulation of protozoan parasite gene expression, which is mediated by histone deacetylases (KDACs) and acetyltransferases (KATs). The present study investigated the role of resveratrol (RVT) as an activator of histone deacetylases in the control of various pathogenic Babesia sp. and Theileria equi , as well as infected mice using fluorescence assay.

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Purpose: To compare the effect of denosumab and alendronate on bone mineral density (BMD) in renal transplant recipients (RTRs) with low bone mass.

Methods: Patients were randomized to receive either denosumab subcutaneously (60 mg/6 months), oral alendronate (70 mg/week), or no treatment for 1 year. The three groups were prescribed daily calcium and vitamin D.

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The efficiency of pristine graphene (GN) in the delivery process of the Favipiravir (FPV) anti-COVID-19 drug was herein revealed within the FPV⋯GN complexes in perpendicular and parallel configurations in terms of the density functional theory (DFT) method. Adsorption energy findings unveiled that the parallel configuration of FPV⋯GN complexes showed higher desirability than the perpendicular one, giving adsorption energy up to -15.95 kcal mol.

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  • Researchers are exploring biocontrol agents to combat deteriorative fungi and bacteria on Egyptian stone monuments, aiming to avoid the toxic effects of chemicals.
  • Three fungal and one bacterial isolates were identified from samples taken at the Temple of Hathor, demonstrating effective inhibition of these pathogens with a minimum inhibition concentration of 25%.
  • The metabolites from Streptomyces exfoliatus were found to be safe for human skin cells and showed no damage to the limestone monuments, suggesting a viable method for preserving these historical sites.
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Coronaviruses, including SARS-CoV-2, SARS-CoV, MERS-CoV and influenza A virus, require the host proteases to mediate viral entry into cells. Rather than targeting the continuously mutating viral proteins, targeting the conserved host-based entry mechanism could offer advantages. Nafamostat and camostat were discovered as covalent inhibitors of TMPRSS2 protease involved in viral entry.

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Alzheimer's disease (AD) is a type of neurodegenerative disease, associated with the hastening of ROS, acetylcholinesterase (AChE) activity, and amyloid β peptides plaques in the brain. The limitations and side effects of existing synthetic drugs incline toward natural sources. In the present communication active principles of methanolic extract of Roxb, leaves are explored as an antioxidant, AChE inhibitor, and anti-amyloidogenic.

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Although postpartum infections caused by species are relatively rare, they can have severe consequences if not promptly identified and treated. Clostridial uterine infections typically originate as localized chorioamnionitis, stemming from fetal and/or placental tissue infection. The infection may then spread to the uterine wall and endometrial tissues, and in the most severe cases, it may result in sepsis and shock.

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Inflammatory processes are increasingly attributed to macrophage polarization. Proinflammatory macrophages promote T helper (Th) 1 response, tissue repair, and Th2 responses. Detection of macrophages in tissue sections is facilitated by CD68.

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() is a prevalent foodborne intestinal parasite in many developing countries. Albendazole (ABZ) is the drug of choice for treating trichinosis despite its several drawbacks as its week effect against encapsulated larvae, low bioavailability, and emerging drug resistance. As a result, new anthelmintic agents are required.

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As a replacement for saturated fats, bigel butter spread (BgBs) based on sesame oleogel and alginate hydrogel was developed. Morphology, oxidative stability, microbiological, chemical, and sensory analysis were assessed. The results demonstrated that unsaturated fatty acids were higher in cinnamon (73.

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The fall armyworm (FAW), , is one of the most devastating invasive polyphagous pests, which has attracted recent global attention by developing resistance to various insecticidal active ingredients with independent mode of action. Fluxametamide, a newly commercialized isoxazoline insecticide, is exceptionally selective towards several lepidopteran pests. The present study aimed to evaluate resistance risk in FAW to fluxametamide and the fitness costs associated with fluxametamide resistance.

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Article Synopsis
  • Recent studies focus on using botanical insecticides, particularly those containing silver nanoparticles (AgNPs), to manage agricultural insect pests and reduce environmental risks.* -
  • The research particularly examined the effects of certain plant extracts and AgNPs on various enzyme levels (like amylase and protease) and macromolecular content (including proteins and carbohydrates) in Tinsley insects.* -
  • Results showed that both plant extracts and AgNPs significantly lowered enzyme levels and total body nutrients in a dose-dependent manner, indicating that these treatments could impair the nutritional capacity of the insects.*
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is a medicinal plant that produces indole alkaloids, which are utilized in anticancer therapy. Vinblastine and vincristine, two commercially important antineoplastic alkaloids, are mostly found in the leaves of . ĸ-carrageenan has been proven as plant growth promoting substance for a number of medicinal and agricultural plants.

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The fall armyworm, (Noctuidae; Lepidoptera), is a serious threat to food security as it has the potential to feed on over 353 plant species. To control this insect pest, endophytic colonization of entomopathogenic fungi (EPF) in plants is being considered as a safer and more effective alternative. This study evaluated the efficacy of two EPFs, and , for endophytic colonization using foliar spray and seed treatment methods on maize plants, and their impact on the survival, development, and fecundity of .

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Background: Most women living in low- and middle-income countries (LMICs) present with advanced-stage breast cancer. Limitations of poor serviceable health systems, restricted access to treatment facilities, and lack of breast cancer screening programmes all likely contribute to the late presentation of women with breast cancer living in these countries. Women are diagnosed with advanced disease and frequently do not complete their care due to a number of factors, including financial reasons as health expenditure is largely out of pocket resulting in financial toxicity; health system failures, such as missing services or health worker lack of awareness on common signs and symptoms of cancer; and sociocultural barriers, such as stigma and use of alternative therapies.

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Introduction: Fibrous dysplasia is a benign disorder of unknown etiology. It represents a disturbance of normal bone development - a defect in osteoblastic differentiation and maturation that originates in the mesenchymal precursor of the bone. It is characterized by slow progressive replacement of bone by abnormal isomorphic fibrous tissue.

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Aim: this study aims to explore the effect of androgen receptor (AR) blockade by flutamide on some renal pathologic changes such as inflammation, apoptosis, and fibrosis in male rats.

Main Methods: Firstly, we investigated the potential effect of AR blockade on renal inflammatory intermediates including IL-1β, IL-6, TNF-α, NF-Қβ proteins, and the renal gene expression of NF-Қβ. Besides inflammation, we also assessed the apoptosis pathways including the caspases 3 & 9, mTOR, pAKT proteins, and BAX gene expression.

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  • The study developed new truncated recombinant proteins from Babesia caballi to enhance the detection of the infection in horses.
  • The combination of full-length rBC134 and truncated rBC48 showed the best diagnostic performance, indicated by higher optical density values in infected sera.
  • This cocktail antigen proved reliable, detecting infections as early as four days post-infection and demonstrated effectiveness across serum samples from multiple endemic regions.
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A new series of N-[4-(2-substituted hydrazine-1-carbonyl)thiazole-2-yl]acetamides was synthesized and evaluated in vitro against six human cell lines as antitumor agents. Compounds 20, 21 and 22 showed remarkable inhibition to HeLa (IC values of 1.67, 3.

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Background: Adult-onset Still's disease (AOSD) is a rare auto-inflammatory disorder with unknown etiology by which an infectious trigger is usually responsible for the onset of the disease. It is diagnosed by exclusion when certain clinical, biochemical, and radiological criteria are met after excluding all other potential causes. Besides, SARS‑CoV‑2 infection is increasingly being reported to have autoimmune complications.

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