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  1. Article ; Online: Synthesis, Anticancer Activity, and In Silico Studies of 5-(3-Bromophenyl)- N -aryl-4 H -1,2,4-triazol-3-amine Analogs

    Mohamed Jawed Ahsan / Krishna Gautam / Amena Ali / Abuzer Ali / Abdulmalik Saleh Alfawaz Altamimi / Salahuddin / Manal A. Alossaimi / S. V. V. N. S. M. Lakshmi / Md. Faiyaz Ahsan

    Molecules, Vol 28, Iss 6936, p

    2023  Volume 6936

    Abstract: In the current study, we described the synthesis of ten new 5-(3-Bromophenyl)- N -aryl-4 H -1,2,4-triazol-3-amine analogs ( 4a–j ), as well as their characterization, anticancer activity, molecular docking studies, ADME, and toxicity prediction. The ... ...

    Abstract In the current study, we described the synthesis of ten new 5-(3-Bromophenyl)- N -aryl-4 H -1,2,4-triazol-3-amine analogs ( 4a–j ), as well as their characterization, anticancer activity, molecular docking studies, ADME, and toxicity prediction. The title compounds ( 4a–j ) were prepared in three steps, starting from substituted anilines in a satisfactory yield, followed by their characterization via spectroscopic techniques. The National Cancer Institute (NCI US) protocol was followed to test the compounds’ ( 4a–j ) anticancer activity against nine panels of 58 cancer cell lines at a concentration of 10 −5 M, and growth percent (GP) as well as percent growth inhibition (PGI) were calculated. Some of the compounds demonstrated significant anticancer activity against a few cancer cell lines. The CNS cancer cell line SNB-75, which showed a PGI of 41.25 percent, was discovered to be the most sensitive cancer cell line to the tested compound 4e . The mean GP of compound 4i was found to be the most promising among the series of compounds. The five cancer cell lines that were found to be the most susceptible to compound 4i were SNB-75, UO-31, CCRF-CEM, EKVX, and OVCAR-5; these five cell lines showed PGIs of 38.94, 30.14, 26.92, 26.61, and 23.12 percent, respectively, at 10 −5 M. The inhibition of tubulin is one of the primary molecular targets of many anticancer agents; hence, the compounds ( 4a–j ) were further subjected to molecular docking studies looking at the tubulin–combretastatin A-4 binding site (PDB ID: 5LYJ) of tubulin. The binding affinities were found to be efficient, ranging from −6.502 to −8.341 kcal/mol, with two major electrostatic interactions observed: H-bond and halogen bond. Ligand 4i had a binding affinity of −8.149 kcal/mol with the tubulin–combretastatin A-4 binding site and displayed a H-bond interaction with the residue Asn258. The ADME and toxicity prediction studies for each compound were carried out using SwissADME and ProTox-II software. None of the compounds’ ADME predictions showed that ...
    Keywords anticancer ; ADME studies ; cell lines ; molecular docking ; triazole ; tubulin ; Organic chemistry ; QD241-441
    Subject code 540 ; 500
    Language English
    Publishing date 2023-10-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  2. Article ; Online: Nanomedicine in the Management of Alzheimer’s Disease

    Shehla Nasar Mir Najib Ullah / Obaid Afzal / Abdulmalik Saleh Alfawaz Altamimi / Hissana Ather / Shaheen Sultana / Waleed H. Almalki / Pragya Bharti / Ankit Sahoo / Khusbu Dwivedi / Gyas Khan / Shahnaz Sultana / Abdulaziz Alzahrani / Mahfoozur Rahman

    Biomedicines, Vol 11, Iss 1752, p

    State-of-the-Art

    2023  Volume 1752

    Abstract: Alzheimer’s disease (AD) is a deadly, progressive, and irreversible brain condition that impairs cognitive abilities. Globally, it affects 32.6 million individuals, and if no viable therapies are available by 2050, that figure might rise to 139 million. ... ...

    Abstract Alzheimer’s disease (AD) is a deadly, progressive, and irreversible brain condition that impairs cognitive abilities. Globally, it affects 32.6 million individuals, and if no viable therapies are available by 2050, that figure might rise to 139 million. The current course of treatment enhances cognitive abilities and temporarily relieves symptoms, but it does not halt or slow the disease’s development. Additionally, treatments are primarily offered in conventional oral dosage forms, and conventional oral treatments lack brain specialization and cause adverse effects, resulting in poor patient compliance. A potential nanotechnology-based strategy can improve the bioavailability and specificity of the drug targeting in the brain. Furthermore, this review extensively summarizes the applications of nanomedicines for the effective delivery of drugs used in the management of AD. In addition, the clinical progress of nanomedicines in AD is also discussed, and the challenges facing the clinical development of nanomedicines are addressed in this article.
    Keywords Alzheimer’s disease ; synthetic drugs ; adverse effects ; nanomedicines ; challenges ; clinical development ; Biology (General) ; QH301-705.5
    Subject code 610
    Language English
    Publishing date 2023-06-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article ; Online: Pyrazoline Containing Compounds as Therapeutic Targets for Neurodegenerative Disorders

    Mohamed Jawed Ahsan / Amena Ali / Abuzer Ali / Arunkumar Thiriveedhi / Mohammed A. Bakht / Mohammad Yusuf / Salahuddin / Obaid Afzal / Abdulmalik Saleh Alfawaz Altamimi

    ACS Omega, Vol 7, Iss 43, Pp 38207-

    2022  Volume 38245

    Keywords Chemistry ; QD1-999
    Language English
    Publishing date 2022-10-01T00:00:00Z
    Publisher American Chemical Society
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  4. Article ; Online: Thymoquinone Induced Leishmanicidal Effect via Programmed Cell Death in Leishmania donovani

    Mohammad Islamuddin / Abuzer Ali / Obaid Afzal / Amena Ali / Intzar Ali / Abdulmalik Saleh Alfawaz Altamimi / Mubarak A. Alamri / Kentaro Kato / Shama Parveen

    ACS Omega, Vol 7, Iss 12, Pp 10718-

    2022  Volume 10728

    Keywords Chemistry ; QD1-999
    Language English
    Publishing date 2022-03-01T00:00:00Z
    Publisher American Chemical Society
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  5. Article ; Online: Cardioprotective Effect of Tangeretin by Inhibiting PTEN/AKT/mTOR Axis in Experimental Sepsis-Induced Myocardial Dysfunction

    Predeepkumar Narayanappa Shiroorkar / Obaid Afzal / Imran Kazmi / Fahad A. Al-Abbasi / Abdulmalik Saleh Alfawaz Altamimi / Kumar Shiva Gubbiyappa / Nagaraja Sreeharsha

    Molecules, Vol 25, Iss 5622, p

    2020  Volume 5622

    Abstract: Sepsis aggregates undesirable immune response causing depression of ventricular myocardium and diastolic dysfunction. This present study examined the effect of a plant-derived flavone tangeretin (TG) on autophagy and reduction in myocardial dysfunction. ... ...

    Abstract Sepsis aggregates undesirable immune response causing depression of ventricular myocardium and diastolic dysfunction. This present study examined the effect of a plant-derived flavone tangeretin (TG) on autophagy and reduction in myocardial dysfunction. The sepsis was induced by cecum ligation and puncture (CLP) in male Sprague–Dawley rats. Abnormal changes were seen in the heart after the sepsis induction. These abnormalities were analyzed based on the cardiac markers, namely Cardiac myosin light chain-1 (cMLC1) and Cardiac troponin I (cTnl), echocardiography, and plasma parameters, like Lactate dehydrogenase (LDH) and Creatinine kinase (CK). Microanatomy of the heart was studied using hematoxylin and eosin stained histopathological samples of cardiac tissue. Western blot technique was used to detect the nature and extent of protein with the amount of a specific RNA (gene expression) in the cardiac homogenate. Oxidative damage was analyzed using redox marker, reduced glutathione. This study successfully showed that TG attenuated sepsis-induced myocardial dysfunction by inhibiting myocardial autophagy via silencing the Phosphatase and tensin homolog (PTEN) expression and acting on the AKT/mTOR pathway. The present findings supported that TG is a novel cardioprotective therapeutic target for sepsis induced myocardial dysfunction.
    Keywords cecum ligation ; puncture ; tangeretin ; sepsis ; PTEN ; AKT ; Organic chemistry ; QD241-441
    Subject code 610
    Language English
    Publishing date 2020-11-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  6. Article ; Online: Inhibition of Chikungunya Virus Infection by 4‑Hydroxy-1-Methyl-3-(3-morpholinopropanoyl)quinoline-2(1H)‑one (QVIR) Targeting nsP2 and E2 Proteins

    Mohammad Islamuddin / Obaid Afzal / Wajihul Hasan Khan / Malik Hisamuddin / Abdulmalik Saleh Alfawaz Altamimi / Ibraheem Husain / Kentaro Kato / Mubarak A. Alamri / Shama Parveen

    ACS Omega, Vol 6, Iss 14, Pp 9791-

    2021  Volume 9803

    Keywords Chemistry ; QD1-999
    Language English
    Publishing date 2021-03-01T00:00:00Z
    Publisher American Chemical Society
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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