Publications by authors named "Mohammed Al-Dosari"

Introduction Irritable bowel syndrome (IBS) is one of the most prevalent GI conditions, characterized by symptoms such as abdominal pain relieved by defecation, changes in bowel habits (e.g., diarrhea, constipation, or both), and bloating.

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Trace detection of bioactive small molecules (BSMs) in body fluids is of great importance for disease diagnosis, drug discovery, and health monitoring. Based on the chiral ligand of 4,4'-(1,2-dihydroxyethane-1,2-diyl)dibenzoic acid (HL), an achiral 3D porous Ni(II)-MOF, with a trinuclear cluster based (3,9)-c {4·6}{4·6·8}-xmz net, was constructed under solvothermal conditions. Benefiting from its robust framework and excellent luminescent performance, NiMOF was endowed with remarkable capabilities in efficiently, rapidly, and sensitively detecting the 3-nitrotyrosine (3-NT) biomarker and 6-propyl-2-thiouracil (6-PTU) thyroid drug based on the spectral overlap and photo-induced electron transfer (PET) caused luminescence quenching response.

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VP30 and VP40 proteins of Ebola and Marburg viruses have been recognized as potential targets for antiviral drug development due to their essential roles in the viral lifecycle. Targeting these proteins could disrupt key stages of the viral replication process, inhibiting the viruses' ability to propagate and cause disease. The current study aims to perform molecular docking and virtual screening on deep-sea fungal metabolites targeting Marburg virus VP40 Dimer, matrix protein VP40 from Ebola virus Sudan, Ebola VP35 Interferon Inhibitory Domain, and VP35 from Marburg virus.

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Article Synopsis
  • Apolipoproteins and SCARB1 proteins play a role in HIV-associated lipodystrophy (HIVLD), with specific genetic polymorphisms influencing risk factors for cardiovascular diseases.
  • The study examined 3238C/G, 12669G/A, and 1050C/T polymorphisms in 187 HIV patients and 139 healthy controls, finding specific genotypes linked to severe HIVLD and altered lipid levels.
  • Overall, while the polymorphisms did not directly modify HIVLD risk, they indicated increased susceptibility when combined with unfavorable lipid and glucose levels.
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Article Synopsis
  • Protease inhibitors (PIs) have been linked to lipodystrophy, a condition marked by loss of body fat in people living with HIV, with variations in this condition influenced by genetic factors and environmental elements.
  • A study sequenced lipid metabolism-related genes in 48 patients, revealing novel genetic variants in the ABCB6 and GRN genes that may be associated with the presence or absence of HIV-related lipodystrophy.
  • The findings indicate that specific genetic mutations could affect protein production, potentially worsening lipodystrophy symptoms, while other mutations may help understand the absence of this condition in certain individuals.
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Aim: Structure-based identification of natural compounds against SARS-CoV-2, Delta and Omicron target proteins.

Materials & Methods: Several known antiviral natural compounds were subjected to molecular docking and MD simulation against SARS-CoV-2 Mpro, Helicase and Spike, including Delta and Omicron Spikes.

Results: Of the docked ligands, 20 selected for each complex exhibited overall good binding affinities (-7.

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Hepatitis E virus (HEV) is primarily a hepatotropic virus that is responsible for acute hepatitis E in the general population and for chronic hepatitis in immunocompromised individuals. In the absence of a globally accessible vaccine, pegylated interferon-α and ribavirin are the only antiviral agents available for the treatment of chronic patients. As viral RNA-dependent RNA polymerases (RdRps) are indispensable for RNA replication, they are considered potential drug targets.

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Virtual screening of deep-sea fungal metabolites against SARS-CoV-2 Delta and Omicron spikes as potential antivirals. Deep-sea fungal alkaloids (n ≥ 150) were evaluated against SARS-CoV-2, Delta and Omicron spikes, using various approaches, including Admet scores, physiochemical properties, molecular docking (MD) and MD simulation (150 ns). The test alkaloids complied with Admet scores and physiochemical properties within acceptable ranges, and followed Lipinski's rule of five.

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Chronic diabetes mellites related hyperglycemia is a major cause of mortality and morbidity due to further complications like retinopathy, hypertension and cardiovascular diseases. Though several synthetic anti-diabetes drugs specifically targeting glucose-metabolism enzymes are available, they have their own limitations, including adverse side-effects. Unlike other natural or marine-derived pharmacologically important molecules, deep-sea fungi metabolites still remain under-explored for their anti-diabetes potential.

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oil and are rich sources of bioactive compounds and have been utilized to formulate various herbal formulations, however, due to certain environmental conditions, pure extract form is prone to degradation. Therefore, in this, study, a green hydrodistillation technology was used to extract and root for the further application in development of pectin crosslinked carboxymethyl cellulose/guar-gum nano hydrogel. Both oil and extract revealed the presence of spirojatamol and hexadecanoic acid methyl ester.

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Diabetes, characterized by high blood glucose level, is a progressive metabolic disease that leads to serious health complications. One of the major pathological consequences associated with diabetes is the accumulation of highly reactive carbonyl compounds called advanced glycation end products (AGEs). Most of the AGEs are dicarbonyls and have the potential to covalently modify proteins especially at the lysine residues in a non-enzymatic fashion (a process termed as glycation) resulting in the functional impairment and/or toxic gain in function.

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Drug‑resistance in hepatitis B virus (HBV), especially due to prolonged treatment with nucleoside analogs, such as lamivudine (LAM), remains a clinical challenge. Alternatively, several plant products and isolated phytochemicals have been used as promising anti‑HBV therapeutics with no sign of resistance. Among all known species, , and have been widely studied for their anti‑HBV efficacy, however, the effects of have not been previously investigated.

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Rising disease prevalence early during the COVID-19 pandemic in the State of Qatar led to stoppage of all non-emergency health care services. To maintain continuity of care and information exchanges for non-emergency patients, a physician-operated telephone hotline was set up that involved triage followed by immediate consultation with a specialized physician. We describe the initiation and evaluate the operations of the Urgent Consultation Centre (UCC) hotline manned by 150 physicians and aimed at urgent non-life-threatening consultations at Hamad Medical Corporation, the public health provider in Qatar.

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Hepatitis B virus (HBV) causes acute and chronic liver diseases, leading to cirrhosis and hepatocellular carcinoma. Although direct-acting nucleoside analogs, such as lamivudine (LAM), adefovir and famciclovir, are available, emergence of drug-resistance due to mutations in HBV polymerase (POL) restricts their further use. Alternatively, numerous plant products and compounds isolated from plants have been reported to confer anti-HBV efficacies without any sign of resistance or .

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Apolipoprotein not only have a role in cholesterol metabolism but also play a role in normal brain function. Apolipoprotein gene polymorphisms are known risk factors for a number of mental and neurological disorders. The expression of brain apolipoproteins is significantly altered in several brain disorders.

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Purpose: The purpose of this meta-analysis was to compare the diagnostic parameters of synovial next-generation sequencing (NGS) and cultures in diagnosing periprosthetic joint infections (PJI).

Methods: PubMed, Web of Science, Cochrane, and Google Scholar were searched from inception until 8 Jan 2022 for literature investigating the role of NGS in comparison to culture in the diagnosis of PJI. The studies were included if they investigated the diagnostic value of culture and NGS in diagnosing PJIs against the Musculoskeletal Infection Society (MSIS) criteria.

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The present study assessed the anti-hepatitis B virus (HBV) effects of cold-adapted sea buckthorn (). Sea buckthorn leaf ethanol extracts subjected to chloroform (SB-Chl), ethyl acetate (SB-Eac), -butanol (SB-But) and aqueous (SB-Aqu) fractionation were first examined (MTT assay) for their toxic effects on HepG2 cells. While SB-Chl (IC, 32.

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Bioactive natural or phytoproducts have emerged as a potential source of antiviral agents. Of the spp., and have been reported for their antiviral activities against hepatitis B virus (HBV), while the anti-HBV efficacy of has remained elusive.

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The genus constitutes cold-adapted plant spp., of these some are traditionally used in folk medicine against inflammation or fungal infections without scientific validations. Here, we report the biological activities of total ethanol-extract (CF-EtOH) and its hexane (CF-Hex), ethyl acetate (CF-EtOA), butanol (CF-ButOH), and aqueous (CF-Aqua) fractions.

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Chronic liver disease caused by hepatitis B virus (HBV) remains an important health issue. Though there are effective HBV-polymerase inhibitors (e.g.

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Hepatitis B virus (HBV) infection is prevalent and continues to be a global health concern. In this study, we determined the anti-hepatitis B virus (HBV) potential of the Socotra-endemic medicinal plant and isolated and characterized the responsible constituents. A bioassay-guided fractionation using different chromatographic techniques of the methanolic extract of led to the isolation of two chalcone derivatives.

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Natural or plant products, because of their structural diversity, are a potential source for identifying new anti-hepatitis B virus (HBV) agents. Here, we report the anti-HBV activity of and its quercetin (QRC) and kaempferol derivatives. The anti-HBV-active methanol fraction of was subjected to chromatographic techniques, leading to isolation of three flavonols, following their structure determination by H and C NMR spectroscopies.

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Elevation in hyperglycemia-associated methylglyoxal level can trigger vascular endothelial cells oxidative stress and apoptosis. The present work assesses the cell proliferative, anti-oxidative and anti-apoptotic potential of derived four new terpenes: a norsesquaterpenol (normonisesquaterpenol), a monocyclic triterpenoid (suaedanortriterpene dione), an aromatic monoterpenic ester and a labdane-type norditerpenic xyloside as well as two new phenols: an alkylated β-naphthol and a β-methoxy naphthalene in cultured human umbilical vein endothelial cells (HUVEC). Of these, suaedanortriterpenedione (53.

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