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  1. Article: RHAMNETIN IS A BETTER INHIBITOR OF SARS-COV-2 2'-O-METHYLTRANSFERASE THAN DOLUTEGRAVIR: A COMPUTATIONAL PREDICTION.

    Rowaiye, Adekunle B / Oli, Angus Nnamdi / Onuh, Olukemi A / Emeter, Nkoli W / Bur, Doofan / Obideyi, Oluwaseun A / Dayisi, Oluyomi Cornelius / Akpa, Jude N / Birah, Lovelyn / Omaka, Edward E / Iseghohi, Frances Otibhor / Otitoju, Akinbobola Peace / Uzor, Philip F / Okoyeh, Jude Nnaemeka

    African journal of infectious diseases

    2022  Volume 16, Issue 2, Page(s) 80–96

    Abstract: Background: The 2'-O-methyltransferase is responsible for the capping of SARS-CoV-2 mRNA and consequently the evasion of the host's immune system. This study aims at identifying prospective natural inhibitors of the active site of SARS-CoV-2 2'O- ... ...

    Abstract Background: The 2'-O-methyltransferase is responsible for the capping of SARS-CoV-2 mRNA and consequently the evasion of the host's immune system. This study aims at identifying prospective natural inhibitors of the active site of SARS-CoV-2 2'O-methyltransferase (2'-OMT) through an in silico approach.
    Materials and methods: The target was docked against a library of natural compounds obtained from edible African plants using PyRx - virtual screening software. The antiviral agent, Dolutegravir which has a binding affinity score of -8.5 kcal mol
    Results: The Root-Mean-Square-Deviation (RMSD) induced by Rhamnetin is 1.656A
    Conclusion: Rhamnetin showed better inhibitory activity at the target's active site than Dolutegravir.
    Language English
    Publishing date 2022-05-06
    Publishing country Nigeria
    Document type Journal Article
    ISSN 2006-0165
    ISSN 2006-0165
    DOI 10.21010/Ajid.v16i2.9
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Mpox in Nigeria: Perceptions and knowledge of the disease among critical stakeholders-Global public health consequences.

    Awoyomi, Olajoju J / Njoga, Emmanuel O / Jaja, Ishmael F / Oyeleye, Felix A / Awoyomi, Priscilla O / Ibrahim, Musawa A / Saulawa, M A / Galadima, Haruna B / Rowaiye, Adekunle B / Olasoju, Taiwo I / Idrisa, Jamila A / Olalere, Folasade D H / Olasoju, Mary I / Adisa, Oluwatosin H / Adetunji, Veronica E / Idemudia, Osagie O / Ezenduka, Ekene V / Oguttu, James W

    PloS one

    2023  Volume 18, Issue 3, Page(s) e0283571

    Abstract: Background: The mpox (monkeypox) disease is a re-emerging viral zoonosis of international concern that is endemic in parts of Africa. The mpox virus (MPXV), which was hitherto largely limited to some Central and West African countries, was declared a ... ...

    Abstract Background: The mpox (monkeypox) disease is a re-emerging viral zoonosis of international concern that is endemic in parts of Africa. The mpox virus (MPXV), which was hitherto largely limited to some Central and West African countries, was declared a public health emergency of international concern by the WHO on July 23, 2022 following the rapid spread of the virus to non-endemic countries. Globally, as of March 16, 2023, the WHO had reported 86,496 laboratory-confirmed cases of mpox and 111 deaths in 110 countries. Of the 1,420 cases of mpox reported in Africa as of March 16, 2023, Nigeria alone recorded 57.1% (812) of the confirmed cases and eight fatalities recorded in the continent. To help improve on the understanding of the current situation in Nigeria, the present study assessed the perception and knowledge of mpox among Nigerian healthcare workers, academics and tertiary students. The study also sought to highlight the global public health significance of the MPXV, and recommend a One Health approach to limit exporting of the virus beyond the borders of Nigeria.
    Methods: A web-based cross-sectional survey was conducted between 24 July 2022 and 12 August 2022 to evaluate the perception and knowledge of mpox among 1544 Nigerians, consisted of healthcare workers (n = 832), academics (n = 306) and tertiary students (n = 462). Data on the respondents' socio demographics and their information sources on mpox were also collected. Each correct response was allotted one point while an incorrect response was scored zero. The scores for perception and knowledge were dichotomized into positive (>5.5) and negative (≤5.5) and adequate (>5.8) and inadequate (≤5.8), respectively; using the average scores for perception and knowledge. The average score for perception and knowledge were summarised and presented as the mean and standard deviation (SD). Chi-square tests of association and binary logistic regression were carried out to determine factors associated with the outcome variables.
    Results: Of the 1452 respondents that had heard of mpox, 878 (60.5%) and 419 (28.9%) had adequate knowledge and positive perception concerning MPXV infection respectively. Average perception score was 5.5. Mean perception and knowledge scores were 4.5(SD: 2.0) and 5.8 (SD: 1.9), respectively. Factors that were significantly associated with knowledge level were age (p = 0.020) educational qualification attained (p = 0.004), occupation (p<0.001), and geopolitical zone of residency (p = 0.001). There was a positive correlation between perception and knowledge scores (r = 0.4, p<0.001). Positive perceptions were likely among respondents who had tertiary education, and residing in North-west Nigeria. Likewise, adequate knowledge scores were likely among respondents under 30 years of age, with tertiary education or reside in North-west Nigeria. Sources of information were significantly associated with perception (p = 0.004) and knowledge (p<0.001) of the respondents.
    Conclusion: The findings of this study show that there is disparity in the knowledge and perception of mpox in the study population, and as a result, there is a need to intensify awareness about MPXV infection to enhance positive perception among the respondents. This has potential to safeguard public health and contain the disease thus preventing it from spreading to the global community. A One Health approach involving animal and human health workers is imperative for improved knowledge and a good perception towards the disease among respondents, and enhanced active surveillance and early detection of MPXV in reservoir hosts (rodents and non-human primates); to prevent reverse zoonotic transmission of the virus at the human-animal interface.
    MeSH term(s) Animals ; Humans ; Public Health ; Nigeria/epidemiology ; Cross-Sectional Studies ; Mpox (monkeypox) ; Surveys and Questionnaires
    Language English
    Publishing date 2023-03-30
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2267670-3
    ISSN 1932-6203 ; 1932-6203
    ISSN (online) 1932-6203
    ISSN 1932-6203
    DOI 10.1371/journal.pone.0283571
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Mpox in Nigeria

    Olajoju J Awoyomi / Emmanuel O Njoga / Ishmael F Jaja / Felix A Oyeleye / Priscilla O Awoyomi / Musawa A Ibrahim / M A Saulawa / Haruna B Galadima / Adekunle B Rowaiye / Taiwo I Olasoju / Jamila A Idrisa / Folasade D H Olalere / Mary I Olasoju / Oluwatosin H Adisa / Veronica E Adetunji / Osagie O Idemudia / Ekene V Ezenduka / James W Oguttu

    PLoS ONE, Vol 18, Iss 3, p e

    Perceptions and knowledge of the disease among critical stakeholders-Global public health consequences.

    2023  Volume 0283571

    Abstract: Background The mpox (monkeypox) disease is a re-emerging viral zoonosis of international concern that is endemic in parts of Africa. The mpox virus (MPXV), which was hitherto largely limited to some Central and West African countries, was declared a ... ...

    Abstract Background The mpox (monkeypox) disease is a re-emerging viral zoonosis of international concern that is endemic in parts of Africa. The mpox virus (MPXV), which was hitherto largely limited to some Central and West African countries, was declared a public health emergency of international concern by the WHO on July 23, 2022 following the rapid spread of the virus to non-endemic countries. Globally, as of March 16, 2023, the WHO had reported 86,496 laboratory-confirmed cases of mpox and 111 deaths in 110 countries. Of the 1,420 cases of mpox reported in Africa as of March 16, 2023, Nigeria alone recorded 57.1% (812) of the confirmed cases and eight fatalities recorded in the continent. To help improve on the understanding of the current situation in Nigeria, the present study assessed the perception and knowledge of mpox among Nigerian healthcare workers, academics and tertiary students. The study also sought to highlight the global public health significance of the MPXV, and recommend a One Health approach to limit exporting of the virus beyond the borders of Nigeria. Methods A web-based cross-sectional survey was conducted between 24 July 2022 and 12 August 2022 to evaluate the perception and knowledge of mpox among 1544 Nigerians, consisted of healthcare workers (n = 832), academics (n = 306) and tertiary students (n = 462). Data on the respondents' socio demographics and their information sources on mpox were also collected. Each correct response was allotted one point while an incorrect response was scored zero. The scores for perception and knowledge were dichotomized into positive (>5.5) and negative (≤5.5) and adequate (>5.8) and inadequate (≤5.8), respectively; using the average scores for perception and knowledge. The average score for perception and knowledge were summarised and presented as the mean and standard deviation (SD). Chi-square tests of association and binary logistic regression were carried out to determine factors associated with the outcome variables. Results Of the 1452 ...
    Keywords Medicine ; R ; Science ; Q
    Subject code 306
    Language English
    Publishing date 2023-01-01T00:00:00Z
    Publisher Public Library of Science (PLoS)
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  4. Article ; Online: Mpox in Nigeria

    Olajoju J. Awoyomi / Emmanuel O. Njoga / Ishmael F. Jaja / Felix A. Oyeleye / Priscilla O. Awoyomi / Musawa A. Ibrahim / M. A. Saulawa / Haruna B. Galadima / Adekunle B. Rowaiye / Taiwo I. Olasoju / Jamila A. Idrisa / Folasade D. H. Olalere / Mary I. Olasoju / Oluwatosin H. Adisa / Veronica E. Adetunji / Osagie O. Idemudia / Ekene V. Ezenduka / James W. Oguttu

    PLoS ONE, Vol 18, Iss

    Perceptions and knowledge of the disease among critical stakeholders—Global public health consequences

    2023  Volume 3

    Abstract: Background The mpox (monkeypox) disease is a re-emerging viral zoonosis of international concern that is endemic in parts of Africa. The mpox virus (MPXV), which was hitherto largely limited to some Central and West African countries, was declared a ... ...

    Abstract Background The mpox (monkeypox) disease is a re-emerging viral zoonosis of international concern that is endemic in parts of Africa. The mpox virus (MPXV), which was hitherto largely limited to some Central and West African countries, was declared a public health emergency of international concern by the WHO on July 23, 2022 following the rapid spread of the virus to non-endemic countries. Globally, as of March 16, 2023, the WHO had reported 86,496 laboratory-confirmed cases of mpox and 111 deaths in 110 countries. Of the 1,420 cases of mpox reported in Africa as of March 16, 2023, Nigeria alone recorded 57.1% (812) of the confirmed cases and eight fatalities recorded in the continent. To help improve on the understanding of the current situation in Nigeria, the present study assessed the perception and knowledge of mpox among Nigerian healthcare workers, academics and tertiary students. The study also sought to highlight the global public health significance of the MPXV, and recommend a One Health approach to limit exporting of the virus beyond the borders of Nigeria. Methods A web-based cross-sectional survey was conducted between 24 July 2022 and 12 August 2022 to evaluate the perception and knowledge of mpox among 1544 Nigerians, consisted of healthcare workers (n = 832), academics (n = 306) and tertiary students (n = 462). Data on the respondents’ socio demographics and their information sources on mpox were also collected. Each correct response was allotted one point while an incorrect response was scored zero. The scores for perception and knowledge were dichotomized into positive (>5.5) and negative (≤5.5) and adequate (>5.8) and inadequate (≤5.8), respectively; using the average scores for perception and knowledge. The average score for perception and knowledge were summarised and presented as the mean and standard deviation (SD). Chi-square tests of association and binary logistic regression were carried out to determine factors associated with the outcome variables. Results Of the 1452 ...
    Keywords Medicine ; R ; Science ; Q
    Subject code 306
    Language English
    Publishing date 2023-01-01T00:00:00Z
    Publisher Public Library of Science (PLoS)
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  5. Article: Identifying immunodominant multi-epitopes from the envelope glycoprotein of the Lassa mammarenavirus as vaccine candidate for Lassa fever.

    Rowaiye, Adekunle Babajide / Nwonu, Ezinne Janefrances / Asala, Titilayo Mercy / Ogu, Amoge Chidinma / Bur, Doofan / Chukwu, Chimaobi / Oli, Angus Nnamdi / Agbalalah, Tarimoboere

    Clinical and experimental vaccine research

    2022  Volume 11, Issue 3, Page(s) 249–263

    Abstract: ... for antigenicity, immunogenicity, allergenicity, and toxicity, immunodominant CD8, CD4, and linear B ...

    Abstract Purpose: Lassa fever is a zoonotic acute viral hemorrhagic disease caused by Lassa virus (LASV). There is currently no licensed vaccine for the prevention of the disease. This study is aimed at discovering immunodominant epitopes from the envelope glycoprotein of the Lassa mammarenavirus and designing of a multi-epitope vaccine candidate (VC).
    Materials and methods: The amino acid sequences of the envelope glycoprotein of 26 strains of LASV from five countries were selected. After evaluation for antigenicity, immunogenicity, allergenicity, and toxicity, immunodominant CD8, CD4, and linear B lymphocytes were also selected. The selected epitopes were modelled and a molecular docking with the appropriate major histocompatibility complex (MHC) proteins was performed. Using an adjuvant and linkers, a multi-epitope VC was designed. The VC was evaluated for its physicochemical and immunological properties and structurally refined, validated, and mutated (disulphide engineering). The complex formed by the VC and the toll-like receptor-4 receptor was subjected to molecular dynamic simulation (MDS) followed by in silico cloning in a plasmid vector.
    Results: A VC with 203 sequences, 22.13 kDa weight, isoelectric point of 9.85 (basic), instability index value of 27.62, aliphatic index of 68.87, and GRAVY value of -0.455 (hydrophilic) emerged. The VC is predicted to be non-allergenic with antigenicity, MHC I immunogenicity, and solubility upon overexpression values of 0.81, 2.04, and 0.86 respectively. The VC also has an estimated half-life greater than 10 hours in
    Conclusion: The VC shows good promise in the prevention of Lassa fever but further tests are required to validate its safety and efficacy.
    Language English
    Publishing date 2022-09-30
    Publishing country Korea (South)
    Document type Journal Article
    ZDB-ID 2684652-4
    ISSN 2287-366X ; 2287-3651
    ISSN (online) 2287-366X
    ISSN 2287-3651
    DOI 10.7774/cevr.2022.11.3.249
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Camptothecin shows better promise than Curcumin in the inhibition of the Human Telomerase: A computational study.

    Rowaiye, Adekunle Babajide / Mendes, Yoroshi Joana Teca / Olofinsae, Samson Ayodeji / Oche, John Breakthrough / Oladipo, Oluwakemi Hannah / Okpalefe, Okiemute Ajiroghene / Ogidigo, Joyce Oloaigbe

    Heliyon

    2021  Volume 7, Issue 8, Page(s) e07742

    Abstract: ... by Camptothecin showed greater inhibitory activity against the target with a total RMSF of 169.853, B-Factor of 20 ...

    Abstract Objectives: The Human Telomerase enzyme has become a drug target in the treatment of cancers and age-related disorders. This study aims to identify potential natural inhibitors of the Human Telomerase from compounds derived from edible African plants.
    Materials and methods: A library of 1,126 natural compounds was molecularly docked against the Telomerase Reverse Transcriptase (PDB ID: 5ugw), the catalytic subunit of the target protein. Curcumin, a known Telomerase inhibitor was used as the standard. The front-runner compounds were screened for bioavailability, pharmacokinetic properties, and bioactivity using the SWISSADME, PKCSM, and Molinspiration webservers respectively. The molecular dynamic simulation and analyses of the apo and holo proteins were performed by the Galaxy supercomputing webserver.
    Results: The results of the molecular docking and virtual screening reveal Augustamine and Camptothecin as lead compounds. Augustamine has better drug-likeness and pharmacokinetic properties while Camptothecin showed better bioactivity and stronger binding affinity (-8.2 kcal/mol) with the target. The holo structure formed by Camptothecin showed greater inhibitory activity against the target with a total RMSF of 169.853, B-Factor of 20.164, and 108 anti-correlating residues.
    Conclusion: Though they both act at the same binding site, Camptothecin induces greater Telomerase inhibition and better molecular stability than the standard, Curcumin. Further tests are required to investigate the inhibitory activities of the lead compounds.
    Language English
    Publishing date 2021-08-10
    Publishing country England
    Document type Journal Article
    ZDB-ID 2835763-2
    ISSN 2405-8440
    ISSN 2405-8440
    DOI 10.1016/j.heliyon.2021.e07742
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article: Camptothecin shows better promise than Curcumin in the inhibition of the Human Telomerase: A computational study

    Rowaiye, Adekunle Babajide / Mendes, Yoroshi Joana Teca / Olofinsae, Samson Ayodeji / Oche, John Breakthrough / Oladipo, Oluwakemi Hannah / Okpalefe, Okiemute Ajiroghene / Ogidigo, Joyce Oloaigbe

    Heliyon. 2021 Aug., v. 7, no. 8

    2021  

    Abstract: ... B-Factor of 20.164, and 108 anti-correlating residues. Though they both act at the same binding site ...

    Abstract The Human Telomerase enzyme has become a drug target in the treatment of cancers and age-related disorders. This study aims to identify potential natural inhibitors of the Human Telomerase from compounds derived from edible African plants. A library of 1,126 natural compounds was molecularly docked against the Telomerase Reverse Transcriptase (PDB ID: 5ugw), the catalytic subunit of the target protein. Curcumin, a known Telomerase inhibitor was used as the standard. The front-runner compounds were screened for bioavailability, pharmacokinetic properties, and bioactivity using the SWISSADME, PKCSM, and Molinspiration webservers respectively. The molecular dynamic simulation and analyses of the apo and holo proteins were performed by the Galaxy supercomputing webserver. The results of the molecular docking and virtual screening reveal Augustamine and Camptothecin as lead compounds. Augustamine has better drug-likeness and pharmacokinetic properties while Camptothecin showed better bioactivity and stronger binding affinity (-8.2 kcal/mol) with the target. The holo structure formed by Camptothecin showed greater inhibitory activity against the target with a total RMSF of 169.853, B-Factor of 20.164, and 108 anti-correlating residues. Though they both act at the same binding site, Camptothecin induces greater Telomerase inhibition and better molecular stability than the standard, Curcumin. Further tests are required to investigate the inhibitory activities of the lead compounds.
    Keywords bioactive properties ; bioavailability ; curcumin ; drugs ; humans ; pharmacokinetics ; protein subunits ; telomerase
    Language English
    Dates of publication 2021-08
    Publishing place Elsevier Ltd
    Document type Article
    ZDB-ID 2835763-2
    ISSN 2405-8440
    ISSN 2405-8440
    DOI 10.1016/j.heliyon.2021.e07742
    Database NAL-Catalogue (AGRICOLA)

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  8. Article ; Online: Camptothecin shows better promise than Curcumin in the inhibition of the Human Telomerase

    Adekunle Babajide Rowaiye / Yoroshi Joana Teca Mendes / Samson Ayodeji Olofinsae / John Breakthrough Oche / Oluwakemi Hannah Oladipo / Okiemute Ajiroghene Okpalefe / Joyce Oloaigbe Ogidigo

    Heliyon, Vol 7, Iss 8, Pp e07742- (2021)

    A computational study

    2021  

    Abstract: ... by Camptothecin showed greater inhibitory activity against the target with a total RMSF of 169.853, B-Factor of 20 ...

    Abstract Objectives: The Human Telomerase enzyme has become a drug target in the treatment of cancers and age-related disorders. This study aims to identify potential natural inhibitors of the Human Telomerase from compounds derived from edible African plants. Materials and methods: A library of 1,126 natural compounds was molecularly docked against the Telomerase Reverse Transcriptase (PDB ID: 5ugw), the catalytic subunit of the target protein. Curcumin, a known Telomerase inhibitor was used as the standard. The front-runner compounds were screened for bioavailability, pharmacokinetic properties, and bioactivity using the SWISSADME, PKCSM, and Molinspiration webservers respectively. The molecular dynamic simulation and analyses of the apo and holo proteins were performed by the Galaxy supercomputing webserver. Results: The results of the molecular docking and virtual screening reveal Augustamine and Camptothecin as lead compounds. Augustamine has better drug-likeness and pharmacokinetic properties while Camptothecin showed better bioactivity and stronger binding affinity (-8.2 kcal/mol) with the target. The holo structure formed by Camptothecin showed greater inhibitory activity against the target with a total RMSF of 169.853, B-Factor of 20.164, and 108 anti-correlating residues. Conclusion: Though they both act at the same binding site, Camptothecin induces greater Telomerase inhibition and better molecular stability than the standard, Curcumin. Further tests are required to investigate the inhibitory activities of the lead compounds.
    Keywords Telomerase ; Molecular dynamic simulation ; Pharmacokinetic ; Augustamine ; Camptothecin ; Science (General) ; Q1-390 ; Social sciences (General) ; H1-99
    Subject code 540
    Language English
    Publishing date 2021-08-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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