Manimbulu Nlooto

Manimbulu Nlooto


Research Focus & Metrics

Academic Career Length

5Years (2022-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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24 May 2024 in Current Research in Pharmacology and Drug Discovery
Verified
Journal Article
Open access
KMKingsley Chimaeze Mbara
Kingsley Chimaeze Mbara
MFMarthe Carine D. Fotsing
Marthe Carine D. Fotsing
DNDerek Tantoh Ndinteh
Derek Tantoh Ndinteh
CMClaudine N. Mbeb
Claudine N. Mbeb
CNChinekwu Sherridan Nwagwu
Chinekwu Sherridan Nwagwu
CTClemence Tarirai
Clemence Tarirai
Diabetes mellitus (DM) is a global health burden that is characterized by the loss or dysfunction of pancreatic β-cells. In pancreatic β-cells, endoplasmic reticulum (ER) stress is a fact of life that contributes to β-cell loss or dysfunction. Despite recent advances in research, the existing treatment approaches such as lifestyle modification and use of conventional therapeutics could not prevent the loss or dysfunction of pancreatic β-cells to abrogate the disease progression. Therefore, targeting ER stress and the consequent unfolded protein response (UPR) in pancreatic β-cells may be a potential therapeutic strategy for diabetes treatment. Dietary phytochemicals have therapeutic applications in human health owing to their broad spectrum of biochemical and pharmacological activities. Flavonoids, which are commonly obtained from fruits and vegetables worldwide, have shown promising prospects in alleviating ER stress. Dietary flavonoids including quercetin, kaempferol, myricetin, isorhamnetin, fisetin, icariin, apigenin, apigetrin, vitexin, baicalein, baicalin, nobiletin hesperidin, naringenin, epigallocatechin 3-O-gallate hesperidin (EGCG), tectorigenin, liquiritigenin, and acacetin have shown inhibitory effects on ER stress in pancreatic β-cells. Dietary flavonoids modulate ER stress signaling components, chaperone proteins, transcription factors, oxidative stress, autophagy, apoptosis, and inflammatory responses to exert their pharmacological effects on pancreatic β-cells ER stress. This review focuses on the role of dietary flavonoids as potential therapeutic adjuvants in preserving pancreatic β-cells from ER stress. Highlights of the underlying mechanisms of action are also presented as well as possible strategies for clinical translation in the management of DM.

ABAmos Adapalala Bugri
Amos Adapalala Bugri
SGSolomon Kwabena Gumanga
Solomon Kwabena Gumanga
PYPeter Yamoah
Peter Yamoah
EFEBENEZER FRIMPONG
EBENEZER FRIMPONG
MNManimbulu Nlooto
Manimbulu Nlooto
Hypertensive disorders associated with pregnancy are a major health concern and a leading cause of maternal indisposition and transience. The main objective of this study was to assess the prevalence of hypertension in pregnancy as well as antihypertensive therapy and pregnancy outcomes among pregnant women at Tamale Teaching Hospital (TTH) in Ghana. This was a retrospective study conducted using data from the folders of pregnant hypertensive patients. The study was conducted at the maternity ward of TTH from 1 June 2018 to 31 May 2019. Participants were all pregnant women with a diagnosis of hypertensive disorders. The prevalence of hypertensive disorders in pregnancy was 12.5%. The most common antihypertensive medication prescribed was sustained-release oral nifedipine, which was prescribed for 548 (81.4%) participants either alone or with methyldopa, followed by oral methyldopa: 506 (75.2%), intravenous hydralazine: 94 (14.0%), intravenous labetalol: 28 (4.2%) and diuretics: 10 (1.5%). Thirty-eight (5.7%) babies died before delivery, whereas 635 (94.3%) babies were born alive. Twenty-six out of the 38 dead babies (68.4%) were babies of pregnant women with elevated BP, whereas 12 (31.6%) were babies of those with normal BP. There was a statistically significant association between BP control and delivery outcomes. The study observed adherence to antihypertensive medicines recommended by the standard treatment guidelines of Ghana for the management of hypertensive disorders in pregnancy. The BPs of about two-thirds of the study participants were well controlled with the antihypertensive therapy. The majority of the study participants with well-controlled BP had positive delivery outcomes.

28 November 2024 in Future Pharmacology
Verified
Journal Article
Open access
PDF file
AMAGANZE GLOIRE-AIME MUSHEBENGE
AGANZE GLOIRE-AIME MUSHEBENGE
SUSamuel Chima Ugbaja
Samuel Chima Ugbaja
NMNonjabulo Ntombikhona Magwaza
Nonjabulo Ntombikhona Magwaza
NMNonkululeko Avril Magini
Nonkululeko Avril Magini
TMTambwe Willy Muzumbukilwa
Tambwe Willy Muzumbukilwa
HKHezekiel Kumalo
Hezekiel Kumalo
The main proteinase (Mpro), or 3CLpro, is a critical enzyme in the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) lifecycle and is responsible for breaking down and releasing vital functional viral proteins crucial for virus development and transmission. As a catalytically active dimer, its dimerization interface has become an attractive target for antiviral drug development. Recent research has extensively investigated the enzymatic activity of Mpro, focusing on its role in regulating the coronavirus replication complex and its significance in virus maturation and infectivity. Computational investigations have identified four druggable pockets, suggesting potential allosteric sites beyond the substrate-binding region. Empirical validation through site-directed alanine mutagenesis has targeted residues in both the active and allosteric regions and corroborated these predictions. Structural studies of drug target proteins can inform therapeutic approaches, with metadynamics simulations shedding light on the role of H163 in regulating Mpro function and providing insights into its dynamic equilibrium to the wild-type enzyme. Despite the efficacy of vaccines and drugs in mitigating SARS-CoV-2 spread, its ongoing viral evolution, selective pressures, and continued transmission pose challenges, potentially leading to resistant mutations. Phylogenetic analyses have indicated the existence of several resistant variations predating drug introduction to the human population, emphasizing the likelihood of drug spread. Hydrogen/deuterium-exchange mass spectrometry reveals the structural influence of the mutation. At the same time, clinical trials on 3CLPro inhibitors underscore the clinical significance of reduced enzymatic activity and offer avenues for future therapeutic exploration. Understanding the implications of 3CLPro mutations holds promise for shaping forthcoming therapeutic strategies against COVID-19. This review delves into factors influencing mutation rates and identifies areas warranting further investigation, providing a comprehensive overview of Mpro mutations, categorization, and terminology. Moreover, we examine their associations with clinical outcomes, illness severity, unresolved issues, and future research prospects, including their impact on vaccine efficacy and potential therapeutic targeting.

15 November 2022 in Applied Sciences
Verified
Journal Article
Open access
PDF file
AAAdebayo Adeniyi
Adebayo Adeniyi
JAJoy Nkechinyere Adeniyi
Joy Nkechinyere Adeniyi
MNManimbulu Nlooto
Manimbulu Nlooto
PSParvesh Singh
Parvesh Singh
The search for new chemotherapeutics against leukemia is of great interest to researchers, owing to the limitation of the current drugs. In this research, new drug candidates against leukemia were probed through liquid chromatography-mass spectrometer (LC-MS) analysis of three traditional herbal concoctions, that provide the phytochemical profile of the samples. The identified compounds from the LC-MS were modeled for the analysis of their antileukemia activities, by using five different consensus methods, to combine the seven docking scores. The consensus methods are used to combine the docking scores to avoid losing promising drug candidates, due to a poor reproducibility of the docking scores across the different packages, due to differences in the scoring functions and training sets across the docking packages. The libraries of the potential drug candidates from the concoctions were constructed by searching the NIST database for molecules with a similar MS fragmentation. Venetoclax and gilteritinib, that target FLT3 and BCL-2 were ranked among the top hits, indicating the efficiency of this protocol without missing any potential drug. The results ranked rescinnamine and bisacodyl as new potential antileukemia agents that targets FLAT3, and BCL-2, including the mutated BCL-2 G101V receptor, that is known to be resistant to treatment with venetoclax.

23 December 2024 in BMJ Open Quality
Verified
Journal Article
Open access
PDF file
TMTambwe Willy Muzumbukilwa
Tambwe Willy Muzumbukilwa
MGManimani Riziki Ghislain
Manimani Riziki Ghislain
RVRajesh Vikram Vagiri
Rajesh Vikram Vagiri
MNManimbulu Nlooto
Manimbulu Nlooto
MBMasemo Dieudonne Bihehe
Masemo Dieudonne Bihehe
AMAGANZE GLOIRE-AIME MUSHEBENGE
AGANZE GLOIRE-AIME MUSHEBENGE
Background: The use of quality indicators in healthcare systems is one of the factors that improve the quality of health services. However, indicators for assessing HIV clinical care in the context of low- and middle-income countries are not fully explored. Some existing indicators were established within the context of developed countries and are primarily defined for community care, with limited emphasis on the hospital setting. Additionally, these indicators often do not account for the local practicality and relevance of quality measures in the context of low- and middle-income countries. Aim: To assess the clinical significance and practical applicability of these indicators from the perspective of healthcare professionals specialising in HIV care in South Africa and Democratic Republic of Congo. Methods: After performing a systematic review of quality indicators employed in the evaluation of clinical care for individuals with HIV, we conducted an observational, cross-sectional study. In this research, 30 physicians filled out two questionnaires with a core set of indicators, to establish the most pertinent and practically indicators for evaluation of the HIV clinical care. A Likert scale was used to rank the indicators. Kendall’s tau-B rank correlation analysis was also performed. Results: From the initial list of 88 quality indicators, 43 were identified as the most relevant and practical in HIV clinical care. Healthcare professionals deemed the monitoring and therapy domain to be the most pertinent and useful indicators out of the seven different clinical domains, followed by the functional organisational structure domain. Conclusion: This instrument may be a tool for healthcare professionals and hospital administrators to improve the quality of HIV clinical care.

17 November 2025 in Proceedings
Verified
Conference Paper
Open access
PDF file
NMNkekolo Lydia Maifo
Nkekolo Lydia Maifo
MNManimbulu Nlooto
Manimbulu Nlooto
RVRajesh Vikram Vagiri
Rajesh Vikram Vagiri
Background: Long waiting times have a negative impact on patients, including loss of income, reduced medication adherence, the risk of drug resistance, and deterioration of their health