Publications by authors named "Taghreed Majrashi"

The environmental and health impacts of chemical processes have been a growing concern, leading to the establishment of Green Chemistry principles. Introducing new metrics for the assessment of methods' greenness is crucial to evaluate the exerted efforts to conserve the environment. In this work, we introduce a Modified Green Star Area (MoGSA) and software to assess the greenness of chemical reactions in laboratory settings.

View Article and Find Full Text PDF
Article Synopsis
  • - The study focuses on the SARS-CoV-2 main protease enzyme (Mpro) as a key target for developing therapies against COVID-19, following the significant global impact of the pandemic.
  • - Researchers utilized a computer-aided drug discovery process, which included designing a structure-based pharmacophore and filtering compounds from the ZINC chemical database, resulting in 703 potential candidates for Mpro inhibition.
  • - The top candidate, compound W1 (ZINC000150656136), demonstrated strong binding properties and interactions with Mpro, with promising docking scores, suggesting it could be a lead compound for further experimental validation and clinical testing.
View Article and Find Full Text PDF

Objective: To determine the clinical effectiveness of different green tea extracts (GTEs) in reducing bleeding after extraction of mandibular molars.

Study Design: Randomised controlled trial. Place and Duration of the Study: College of Dentistry, King Khalid University, Abha, Saudi Arabia, from October to December 2022.

View Article and Find Full Text PDF

There is still a great global need for efficient treatments for the management of SARS-CoV-2 illness notwithstanding the availability and efficacy of COVID-19 vaccinations. Olive leaf is an herbal remedy with a potential antiviral activity that could improve the recovery of COVID-19 patients. In this work, the olive leaves major metabolites were screened in silico for their activity against SARS-CoV-2 by molecular docking on several viral targets such as methyl transferase, helicase, Plpro, Mpro, and RdRp.

View Article and Find Full Text PDF

The development of effective drugs targeting the K-Ras oncogene product is a significant focus in anticancer drug development. Despite the lack of successful Ras signaling inhibitors, recent research has identified PDEδ, a KRAS transporter, as a potential target for inhibiting the oncogenic KRAS signaling pathway. This study aims to investigate the interactions between eight K-Ras inhibitors (deltarazine, deltaflexin 1 and 2, and its analogues) and PDEδ to understand their binding modes.

View Article and Find Full Text PDF

The Libyan Strawberry, Pampan (ARB), is an endemic Jebel Akhdar plant used for traditional medicine. This study presents the antioxidant and hepatoprotective properties of ARB fruit-extract. ARB phytochemical analysis indicated the presence of 354.

View Article and Find Full Text PDF
Article Synopsis
  • The study examines the phytoconstituents in the chloroform fraction of three plant species using UPLC/ESI/MS, identifying 19, 20, and 11 metabolites predominantly comprised of terpenoids, flavonoids, phenolic acids, and fatty acids.
  • An antioxidant analysis using FRAP and DPPH assays showed that the chloroform fraction of one specified species had the strongest antioxidant activity due to higher levels of total phenolics and flavonoids.
  • The research also assessed the inhibitory effects on enzymes COX-1, glucosidase, and amylase, finding the chloroform fraction to be particularly potent against COX-1, and molecular docking indicated that the major
View Article and Find Full Text PDF

Joining the global effort to eradicate tuberculosis, one of the deadliest infectious killers in the world, we disclose in this paper the design and synthesis of new indolinone-tethered benzothiophene hybrids 6a-i and 7a-i as potential anti-tubercular agents. The MICs were determined in vitro for the synthesized compounds against the sensitive M. tuberculosis strain ATCC 25177.

View Article and Find Full Text PDF

Background: Tyrosine-protein kinase Fyn (Fyn) is a critical signaling molecule involved in various cellular processes, including neuronal development, synaptic plasticity, and disease pathogenesis. Dysregulation of Fyn kinase has been implicated in various complex diseases, including neurodegenerative disorders such as Alzheimer's and Parkinson's diseases, as well as different cancer types. Therefore, identifying small molecule inhibitors that can inhibit Fyn activity holds substantial significance in drug discovery.

View Article and Find Full Text PDF

Leucine-rich repeat kinase 2 (LRRK2) is a promising drug target for the therapeutic management of Parkinson's disease (PD) and other neurodegenerative disorders. LRRK2 inhibitors have the potential to modulate neuroinflammation, reduce alpha-synuclein aggregation and improve motor symptoms in PD patients. Although LRRK2 inhibitors are still in the early stages of clinical development, the identification of potent and selective inhibitors through structure-guided approaches provides a promising avenue for the development of effective therapies for PD and other neurodegenerative disorders.

View Article and Find Full Text PDF

Cyclophosphamide (CPA) is a chemotherapeutic drug used for various types of cancers. However, patients receiving CPA for long periods suffer cognitive impairment associated with difficulties in learning, decreased concentration, and impaired memory. Chemotherapy-induced cognitive impairment, known as chemobrain, has been attributed to enhanced oxidative stress and inflammatory response.

View Article and Find Full Text PDF

Acute myeloid leukemia (AML) stands as one of the most aggressive type of human cancer that can develop rapidly and thus requires immediate management. In the current study, the development of novel derivatives of pyrimido[1,2-a]benzimidazole (5a-p) as potential anti-AML agents is reported. The prepared compounds 5a-p were inspected for their in vitro anti-tumor activity at NCI-DTP and subsequently 5h was selected for full panel five-dose screening to assess its TGI, LC and GI values.

View Article and Find Full Text PDF

is an aromatic genus of flowering plants belonging to family Myrtaceae. The essential oils of leaves were collected in four seasons and analyzed using GC/MS. The oils demonstrated monoterpenes as the predominant class.

View Article and Find Full Text PDF

Heterocyclic compounds have been featured as the key building blocks for the development of biologically active molecules. In addition to being derived from renewable raw materials, fatty acids possess a variety of biological properties. The two bioactive ingredients are being combined by many researchers to produce hybrid molecules that have a number of desirable properties.

View Article and Find Full Text PDF

Trypanosomiasis is a protozoan disease transmitted via  This study aimed to examine the metabolic profile and anti-trypanosomal effect of methanol extract of leaves. The liquid chromatography-high resolution electrospray ionisation mass spectrometry (LC-HRESIMS) revealed the identification of fifteen compounds of iridoid, flavonoid, lignan, phenolic acid, and alkaloid classes. The extract displayed a promising inhibitory activity against TC 221 with MIC value of 1.

View Article and Find Full Text PDF

Multiple inhibitions of CA, COX-2 and 5-LOX enzymes has been recognised as a useful strategy for the development of anti-inflammatory drugs that can avoid the disadvantages of using NSAIDs alone. Here, we report new pyridazine-based sulphonamides ( and ) as potential multi-target anti-inflammatory candidates. First, the furanone heterocycle in the dual CA/COX-2 inhibitor Polmacoxib was replaced with the pyridazinone one.

View Article and Find Full Text PDF

Cancer is a hard-to-treat disease with a high reoccurrence rate that affects health and lives globally. The condition has a high occurrence rate and is the second leading cause of mortality after cardiovascular disorders. Increased research and more profound knowledge of the mechanisms contributing to the disease's onset and progression have led to drug discovery and development.

View Article and Find Full Text PDF

Hepatocellular carcinoma is considered one of the most lethal cancers, which is characterised by increasing prevalence associated with high level of invasion and metastasis. The novel synthetic pyrazolo[3,4-]pyridine compound, , was reported to exhibit antitumor activity. This study was conducted to evaluate the antitumor activity of in HCC induced in rats through affecting the TGF-β/β-catenin/α-SMA pathway.

View Article and Find Full Text PDF

() is a worldwide leading versatile pathogen that causes a wide range of serious infections. The emergence of antimicrobial resistance against resulted in an urgent need to develop new antimicrobials in the new era. The methicillin-resistant (MRSA) prevalence in hospital and community settings necessitates the discovery of novel anti-pathogenic agents.

View Article and Find Full Text PDF

We describe the design and synthesis of two isatin-tethered quinolines series (- and -), in connection with our research interest in developing novel isatin-bearing anti-tubercular candidates. In a previous study, a series of small molecules bearing a quinoline-3-carbohydrazone moiety was developed as anti-tubercular agents, and compound disclosed the highest potency with MIC value equal to 6.24 µg/mL.

View Article and Find Full Text PDF

Herein, a set of pyridine and pyrimidine derivatives were assessed for their impact on the cell cycle and apoptosis. Human breast cancer (MCF7), hepatocellular carcinoma (HEPG2), larynx cancer (HEP2), lung cancer (H460), colon cancers (HCT116 and Caco2), and hypopharyngeal cancer (FADU), and normal Vero cell lines were used. Compounds and displayed outstanding effects on the investigated cell lines and were further tested for their antioxidant activity in MCF7, H460, FADU, HEP2, HEPG2, HCT116, Caco2, and Vero cells by measuring superoxide dismutase (SOD), malondialdehyde content (MDA), reduced glutathione (GSH), and nitric oxide (NO) content.

View Article and Find Full Text PDF

Phytochemical analyses of the chloroform extract of L. var. , Piperaceae, leaves led to the isolation of a new phenylpropanoid analogue for the first time: hydroxychavicol dimer, 2-('-hydroxychavicol)-hydroxychavicol (), on the basis of spectroscopic data 1 D (H and C) and 2 D (H-H COSY and HMBC) NMR, as well as ESI-MS, FT-IR, HR-ESI-MS and LC-ESI-MS.

View Article and Find Full Text PDF

The effect of extracting solvents used by two methods on the TPC, TFC, antioxidant as well as lipoxygenase, and tyrosinase inhibition activities of fruit (peel and pulp) were studied. The results manifest that extracts with solvent polarities showed different levels of polyphenols contents and antioxidant activities. The extracts acquired by the Soxhlet method were the most fascinating.

View Article and Find Full Text PDF

Background: Moringa oleifera Lam. is known as a drumstick tree that is widely cultivated in various subtropical and tropical provinces. Previous studies indicated that both aqueous and methanolic extracts of M.

View Article and Find Full Text PDF

A PHP Error was encountered

Severity: Warning

Message: fopen(/var/lib/php/sessions/ci_sessionob9m4b8m9a0t8gh8cf92kehd8k8fl0hg): Failed to open stream: No space left on device

Filename: drivers/Session_files_driver.php

Line Number: 177

Backtrace:

File: /var/www/html/index.php
Line: 316
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: session_start(): Failed to read session data: user (path: /var/lib/php/sessions)

Filename: Session/Session.php

Line Number: 137

Backtrace:

File: /var/www/html/index.php
Line: 316
Function: require_once