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  1. Article ; Online: Drug resistance in animal trypanosomiases: Epidemiology, mechanisms and control strategies.

    Ungogo, Marzuq A / de Koning, Harry P

    International journal for parasitology. Drugs and drug resistance

    2024  Volume 25, Page(s) 100533

    Abstract: Animal trypanosomiasis (AT) is a complex of veterinary diseases known under various names such as nagana, surra, dourine and mal de caderas, depending on the country, the infecting trypanosome species and the host. AT is caused by parasites of the genus ... ...

    Abstract Animal trypanosomiasis (AT) is a complex of veterinary diseases known under various names such as nagana, surra, dourine and mal de caderas, depending on the country, the infecting trypanosome species and the host. AT is caused by parasites of the genus Trypanosoma, and the main species infecting domesticated animals are T. brucei brucei, T. b. rhodesiense, T. congolense, T. simiae, T. vivax, T. evansi and T. equiperdum. AT transmission, again depending on species, is through tsetse flies or common Stomoxys and tabanid flies or through copulation. Therefore, the geographical spread of all forms of AT together is not restricted to the habitat of a single vector like the tsetse fly and currently includes almost all of Africa, and most of South America and Asia. The disease is a threat to millions of companion and farm animals in these regions, creating a financial burden in the billions of dollars to developing economies as well as serious impacts on livestock rearing and food production. Despite the scale of these impacts, control of AT is neglected and under-resourced, with diagnosis and treatments being woefully inadequate and not improving for decades. As a result, neither the incidence of the disease, nor the effectiveness of treatment is documented in most endemic countries, although it is clear that there are serious issues of resistance to the few old drugs that are available. In this review we particularly look at the drugs, their application to the various forms of AT, and their mechanisms of action and resistance. We also discuss the spread of veterinary trypanocide resistance and its drivers, and highlight current and future strategies to combat it.
    Language English
    Publishing date 2024-03-30
    Publishing country Netherlands
    Document type Journal Article ; Review
    ZDB-ID 2751132-7
    ISSN 2211-3207 ; 2211-3207
    ISSN (online) 2211-3207
    ISSN 2211-3207
    DOI 10.1016/j.ijpddr.2024.100533
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Targeting Smad-Mediated TGFß Pathway in Coronary Artery Bypass Graft.

    Ungogo, Marzuq A

    Journal of cardiovascular pharmacology and therapeutics

    2020  Volume 26, Issue 2, Page(s) 119–130

    Abstract: Revascularization surgeries such as coronary artery bypass grafting (CABG) are sometimes necessary to manage coronary heart disease (CHD). However, more than half of these surgeries fail within 10 years due to the development of intimal hyperplasia (IH) ... ...

    Abstract Revascularization surgeries such as coronary artery bypass grafting (CABG) are sometimes necessary to manage coronary heart disease (CHD). However, more than half of these surgeries fail within 10 years due to the development of intimal hyperplasia (IH) among others. The cytokine transforming growth factor-beta (TGFß) and its signaling components have been found to be upregulated in diseased or injured vessels, and to promote IH after grafting. Interventions that globally inhibit TGFß in CABG have yielded contrasting outcomes in
    MeSH term(s) Activin Receptors, Type II/metabolism ; Coronary Artery Bypass ; Coronary Disease/surgery ; Graft Occlusion, Vascular/physiopathology ; Humans ; Hyperplasia/physiopathology ; Myocytes, Smooth Muscle ; Receptor, Transforming Growth Factor-beta Type I/metabolism ; Signal Transduction ; Smad2 Protein ; Transforming Growth Factor beta/metabolism
    Chemical Substances SMAD2 protein, human ; Smad2 Protein ; Transforming Growth Factor beta ; ACVRL1 protein, human (EC 2.7.11.30) ; Activin Receptors, Type II (EC 2.7.11.30) ; Receptor, Transforming Growth Factor-beta Type I (EC 2.7.11.30) ; TGFBR1 protein, human (EC 2.7.11.30)
    Language English
    Publishing date 2020-08-19
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Review
    ZDB-ID 1329372-2
    ISSN 1940-4034 ; 1074-2484
    ISSN (online) 1940-4034
    ISSN 1074-2484
    DOI 10.1177/1074248420951037
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Differences in Transporters Rather than Drug Targets Are the Principal Determinants of the Different Innate Sensitivities of

    Ungogo, Marzuq A / Campagnaro, Gustavo D / Alghamdi, Ali H / Natto, Manal J / de Koning, Harry P

    International journal of molecular sciences

    2022  Volume 23, Issue 5

    Abstract: The animal trypanosomiases are infections in a wide range of (domesticated) animals with any species of African trypanosome, such ... ...

    Abstract The animal trypanosomiases are infections in a wide range of (domesticated) animals with any species of African trypanosome, such as
    MeSH term(s) Animals ; Arsenicals ; Membrane Transport Proteins ; Pentamidine/metabolism ; Pentamidine/pharmacology ; Suramin/pharmacology ; Trypanocidal Agents/pharmacology ; Trypanosoma ; Trypanosoma congolense/metabolism
    Chemical Substances Arsenicals ; Membrane Transport Proteins ; Trypanocidal Agents ; Suramin (6032D45BEM) ; Pentamidine (673LC5J4LQ)
    Language English
    Publishing date 2022-03-05
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2019364-6
    ISSN 1422-0067 ; 1422-0067 ; 1661-6596
    ISSN (online) 1422-0067
    ISSN 1422-0067 ; 1661-6596
    DOI 10.3390/ijms23052844
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Review of pharmacologic and immunologic agents in the management of COVID-19.

    Ungogo, Marzuq A / Mohammed, Mustapha / Umar, Bala N / Bala, Auwal A / Khalid, Garba M

    Biosafety and health

    2021  Volume 3, Issue 3, Page(s) 148–155

    Abstract: The novel coronavirus disease 2019 (COVID-19) is the third coronavirus outbreak in the last two decades. Emerging and re-emerging infections like COVID-19 pose serious challenges of the paucity of information and lack of specific cure or vaccines. This ... ...

    Abstract The novel coronavirus disease 2019 (COVID-19) is the third coronavirus outbreak in the last two decades. Emerging and re-emerging infections like COVID-19 pose serious challenges of the paucity of information and lack of specific cure or vaccines. This leaves utilisation of existing scientific data on related viral infections and repurposing relevant aetiologic and supportive therapies as the best control approach while novel strategies are developed and trialled. Many promising antiviral agents including lopinavir, ritonavir, remdesivir, umifenovir, darunavir, and oseltamivir have been repurposed and are currently trialled for the care for COVID-19 patients. Adjunct therapies for the management of symptoms and to provide support especially in severe and critically ill patients have also been identified. This review provides an appraisal of the current evidence for the rational use of frontline therapeutics in the management of COVID-19. It also includes updates regarding COVID-19 immunotherapy and vaccine development.
    Language English
    Publishing date 2021-01-09
    Publishing country Netherlands
    Document type Journal Article ; Review
    ISSN 2590-0536
    ISSN (online) 2590-0536
    DOI 10.1016/j.bsheal.2021.01.001
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: The Activity of Red Nigerian Propolis and Some of Its Components against

    Alenezi, Samya S / Alenezi, Naif D / Ebiloma, Godwin U / Natto, Manal J / Ungogo, Marzuq A / Igoli, John O / Ferro, Valerie A / Gray, Alexander I / Fearnley, James / Koning, Harry P de / Watson, David G

    Molecules (Basel, Switzerland)

    2023  Volume 28, Issue 2

    Abstract: Propolis is a resin that is gathered by bees from exudates produced by various plants. Its exact chemical composition depends on the plants available near the hive. Bees use propolis to coat the surfaces of the hive, where it acts as an anti-infective. ... ...

    Abstract Propolis is a resin that is gathered by bees from exudates produced by various plants. Its exact chemical composition depends on the plants available near the hive. Bees use propolis to coat the surfaces of the hive, where it acts as an anti-infective. Regardless of the chemical composition of propolis, it is always anti-protozoal, probably because protozoan parasites, particularly
    MeSH term(s) Humans ; Animals ; Trypanosoma brucei brucei ; Trypanosoma congolense ; Propolis/pharmacology ; Propolis/chemistry ; Anti-Infective Agents ; Nigeria ; Trypanosomiasis, African/drug therapy
    Chemical Substances Propolis (9009-62-5) ; Anti-Infective Agents
    Language English
    Publishing date 2023-01-07
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 1413402-0
    ISSN 1420-3049 ; 1431-5165 ; 1420-3049
    ISSN (online) 1420-3049
    ISSN 1431-5165 ; 1420-3049
    DOI 10.3390/molecules28020622
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Cloning and Characterization of

    Ungogo, Marzuq A / Aldfer, Mustafa M / Natto, Manal J / Zhuang, Hainan / Chisholm, Robyn / Walsh, Katy / McGee, MarieClaire / Ilbeigi, Kayhan / Asseri, Jamal Ibrahim / Burchmore, Richard J S / Caljon, Guy / Van Calenbergh, Serge / De Koning, Harry P

    International journal of molecular sciences

    2023  Volume 24, Issue 4

    Abstract: African Animal Trypanosomiasis (AAT), caused predominantly ... ...

    Abstract African Animal Trypanosomiasis (AAT), caused predominantly by
    MeSH term(s) Animals ; Trypanosomiasis, African/parasitology ; Trypanosoma congolense ; Nucleosides/therapeutic use ; Tubercidin/therapeutic use ; Adenosine/therapeutic use ; Cloning, Molecular
    Chemical Substances Nucleosides ; Tubercidin (M351LCX45Y) ; Adenosine (K72T3FS567)
    Language English
    Publishing date 2023-02-05
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2019364-6
    ISSN 1422-0067 ; 1422-0067 ; 1661-6596
    ISSN (online) 1422-0067
    ISSN 1422-0067 ; 1661-6596
    DOI 10.3390/ijms24043144
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Differences in Transporters Rather than Drug Targets Are the Principal Determinants of the Different Innate Sensitivities of Trypanosoma congolense and Trypanozoon Subgenus Trypanosomes to Diamidines and Melaminophenyl Arsenicals

    Marzuq A. Ungogo / Gustavo D. Campagnaro / Ali H. Alghamdi / Manal J. Natto / Harry P. de Koning

    International Journal of Molecular Sciences, Vol 23, Iss 2844, p

    2022  Volume 2844

    Abstract: The animal trypanosomiases are infections in a wide range of (domesticated) animals with any species of African trypanosome, such as Trypanosoma brucei , T. evansi , T. congolense , T. equiperdum and T. vivax . Symptoms differ between host and infective ... ...

    Abstract The animal trypanosomiases are infections in a wide range of (domesticated) animals with any species of African trypanosome, such as Trypanosoma brucei , T. evansi , T. congolense , T. equiperdum and T. vivax . Symptoms differ between host and infective species and stage of infection and are treated with a small set of decades-old trypanocides. A complication is that not all trypanosome species are equally sensitive to all drugs and the reasons are at best partially understood. Here, we investigate whether drug transporters, mostly identified in T. b. brucei , determine the different drug sensitivities. We report that homologues of the aminopurine transporter TbAT1 and the aquaporin TbAQP2 are absent in T. congolense , while their introduction greatly sensitises this species to diamidine (pentamidine, diminazene) and melaminophenyl (melarsomine) drugs. Accumulation of these drugs in the transgenic lines was much more rapid. T. congolense is also inherently less sensitive to suramin than T. brucei , despite accumulating it faster. Expression of a proposed suramin transporter, located in T. brucei lysosomes, in T. congolense , did not alter its suramin sensitivity. We conclude that for several of the most important classes of trypanocides the presence of specific transporters, rather than drug targets, is the determining factor of drug efficacy.
    Keywords Trypanosoma congolense ; Trypanosoma evansi ; cymelarsan ; pentamidine ; suramin ; diminazene ; Biology (General) ; QH301-705.5 ; Chemistry ; QD1-999
    Language English
    Publishing date 2022-03-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  8. Article: Two New Antiprotozoal Diterpenes From the Roots of

    Anyam, John V / Daikwo, Priscilla E / Ungogo, Marzuq A / Nweze, Nwakaego E / Igoli, Ngozichukwuka P / Gray, Alexander I / De Koning, Harry P / Igoli, John O

    Frontiers in chemistry

    2021  Volume 9, Page(s) 624741

    Abstract: The powdered roots of the medicinal ... ...

    Abstract The powdered roots of the medicinal plant
    Language English
    Publishing date 2021-04-21
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2711776-5
    ISSN 2296-2646
    ISSN 2296-2646
    DOI 10.3389/fchem.2021.624741
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: The Antiprotozoal Activity of Papua New Guinea Propolis and Its Triterpenes.

    Alenezi, Samya S / Alenezi, Naif D / Ebiloma, Godwin U / Natto, Manal J / Ungogo, Marzuq A / Igoli, John O / Ferro, Valerie A / Gray, Alexander I / Fearnley, James / de Koning, Harry P / Watson, David G

    Molecules (Basel, Switzerland)

    2022  Volume 27, Issue 5

    Abstract: Profiling a propolis sample from Papua New Guinea (PNG) using high-resolution mass spectrometry indicated that it contained several triterpenoids. Further fractionation by column chromatography and medium-pressure liquid chromatography (MPLC) followed by ...

    Abstract Profiling a propolis sample from Papua New Guinea (PNG) using high-resolution mass spectrometry indicated that it contained several triterpenoids. Further fractionation by column chromatography and medium-pressure liquid chromatography (MPLC) followed by nuclear magnetic resonance spectroscopy (NMR) identified 12 triterpenoids. Five of these were obtained pure and the others as mixtures of two or three compounds. The compounds identified were: mangiferonic acid, ambonic acid, isomangiferolic acid, ambolic acid, 27-hydroxyisomangiferolic acid, cycloartenol, cycloeucalenol, 24-methylenecycloartenol, 20-hydroxybetulin, betulin, betulinic acid and madecassic acid. The fractions from the propolis and the purified compounds were tested in vitro against
    MeSH term(s) Propolis
    Chemical Substances Propolis (9009-62-5)
    Language English
    Publishing date 2022-03-01
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 1413402-0
    ISSN 1420-3049 ; 1431-5165 ; 1420-3049
    ISSN (online) 1420-3049
    ISSN 1431-5165 ; 1420-3049
    DOI 10.3390/molecules27051622
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article: Antitrypanosomal and Antileishmanial Activity of Chalcones and Flavanones from

    Zheoat, Ahmed M / Alenezi, Samya / Elmahallawy, Ehab Kotb / Ungogo, Marzuq A / Alghamdi, Ali H / Watson, David G / Igoli, John O / Gray, Alexander I / de Koning, Harry P / Ferro, Valerie A

    Pathogens (Basel, Switzerland)

    2021  Volume 10, Issue 2

    Abstract: Trypanosomiasis and leishmaniasis are a group of neglected parasitic diseases caused by several species of parasites belonging to the family Trypansomatida. The present study investigated the antitrypanosomal and antileishmanial activity of chalcones and ...

    Abstract Trypanosomiasis and leishmaniasis are a group of neglected parasitic diseases caused by several species of parasites belonging to the family Trypansomatida. The present study investigated the antitrypanosomal and antileishmanial activity of chalcones and flavanones from
    Language English
    Publishing date 2021-02-05
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2695572-6
    ISSN 2076-0817
    ISSN 2076-0817
    DOI 10.3390/pathogens10020175
    Database MEDical Literature Analysis and Retrieval System OnLINE

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