33 results on '"Matthew Iyobhebhe"'
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2. Energy metabolism and spermatogenesis
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Damilare Emmanuel Rotimi, Matthew Iyobhebhe, Elizabeth Temidayo Oluwayemi, Olasunkanmi Peter Olajide, Bolanle Adenike Akinsanola, Ikponmwosa Owen Evbuomwan, Rotdelmwa Maimako Asaleye, and Oluwafemi Adeleke Ojo
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Energy ,Metabolism ,Sperm ,Testis ,Science (General) ,Q1-390 ,Social sciences (General) ,H1-99 - Abstract
Infertility has become a significant health burden around the globe as it is believed that 15 % of married couples struggle with infertility, with half of the problem accrued to the male. The issue of male infertility could be traced to insufficient or absence of spermatozoa. Glucose metabolism is essential for continued spermatogenesis and for the reproductive potential of sperm cells. Appropriate nutrition is critical in maintaining reproductive function as caloric restriction along with weight reduction, excessive food consumption and obesity are harmful to reproductive function. The link between metabolism and reproduction is tied to metabolic hormones like insulin, leptin and thyroid, extracellular environment, mitochondria function, nutrient substrate, availability, and environmental stressors. Although matured spermatozoa utilize glucose directly, it is not the preferred energy substrate for germ cells as they rely on Sertoli cells to supply lactate. The reproductive potential of sperm cells depends on certain modifications like hyperactivated motility, which is mainly dependent on glucose metabolism. Without other energy sources, spermatozoa utilize their internal lipid stores. The uptake and metabolism of glucose by sperm are essential endpoints for determining the potential fertility of male individuals. The biological energy in sperm cells fuels all the physiological processes they engage in, from their deposition in the female reproductive tract to the point where they fertilize an egg. This article thus reviews facts pertinent to the energy metabolism of male germ cells and Sertoli cells.
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- 2024
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3. Evaluation of Performance Metrics Required in Proper Selection of SDN Controller for Integrated Satellite-Terrestrial Networks
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Oluwatobi A. Ayofe, Mu'azu J. Musa, Zanna M. Abdullahir, Abdoulie M.S. Tekanyi, Aliyu D. Usman, Ezekiel E. Agbon, Emmanuel A. Otsapa, Agburu O. Adikpe, Matthew Iyobhebhe, and Paul Thomas Muge
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5G, Integrated Satellite, Terrestrial Networks, Performance Metrics, SDN Controllers ,Technology - Abstract
SDN controllers are increasingly becoming an integral part of modern communication networks due to their ability to centrally control and manage networks from a global point of view. One of the application areas in which the SDN paradigm is gaining traction is the Integration of Satellite and Terrestrial Networks (ISTN). Considering that there are different SDN controllers with their intrinsic characteristics, which translate to different performance characteristics, it is pertinent to determine the SDN controllers that will be most suitable for the specific application area. This study embarked on evaluating selected SDN controllers that will help in making informed selection decisions for suitability in a future ISTN architecture. Five SDN controllers were subjected to evaluation and they are Open Network Operating System (ONOS), Opendaylight (ODL), Floodlight (FL), Ryu, and Pox. These controllers are evaluated based on throughput and latency metrics, which are considered some of the factors that could influence the performance of the interworking of both terrestrial and satellite networks. The controllers were subjected under various topologies and traffic densities which are (i) single topologies under no cross traffic, half-bandwidth cross traffic, and high-bandwidth cross traffic conditions (ii) linear topology under no cross traffic, half-bandwidth cross traffic, and high-bandwidth cross traffic conditions (iii) tree topology under no cross traffic, half-bandwidth cross traffic, and high-bandwidth cross traffic conditions (ii) linear topology under no cross traffic, half-bandwidth cross traffic, and high-bandwidth cross traffic conditions (iii) tree topology under no cross traffic, half-bandwidth cross traffic, and high-bandwidth cross traffic conditions. Under all conditions, ONOS shows superiority in terms of throughput while Ryu shows superiority in terms of synchronization time. Focusing specifically on the tree topologies, considering it follows the same pattern with the single and linear topologies, the ONOS exhibited throughput of 815flow/ms under no cross traffic and throughput of 807flow/ms under both half-bandwidth and high-bandwidth band cross traffic. Ryu exhibited a synchronisation time of 19ms, 23ms, and 26ms under the no cross traffic, half-bandwidth cross traffic, and high-bandwidth traffic cross-traffic conditions, respectively. Observing from the values for both the throughput and synchronisation time metrics under all the topologies, it can be inferred that a number of hosts have more impact on the metrics rather than traffic volume, and this could be attributed to caching mechanisms like Address Resolution Protocol (ARP) wherein new traffic from known hosts can quickly be processed compared to new traffic from new hosts. In summary, the ONOS controller can be considered to offer good performance in an ISTN.
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- 2024
4. Mitophagy and spermatogenesis: Role and mechanisms
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Damilare Emmanuel Rotimi, Matthew Iyobhebhe, Elizabeth Temidayo Oluwayemi, Ikponmwosa Owen Evbuomwan, Rotdelmwa Maimako Asaleye, Oluwafemi Adeleke Ojo, and Oluyomi Stephen Adeyemi
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Autophagy ,Male infertility ,Reproductive health ,Spermatogenesis ,Biology (General) ,QH301-705.5 ,Biochemistry ,QD415-436 - Abstract
The mitophagy process, a type of macroautophagy, is the targeted removal of mitochondria. It is a type of autophagy exclusive to mitochondria, as the process removes defective mitochondria one by one. Mitophagy serves as an additional level of quality control by using autophagy to remove superfluous mitochondria or mitochondria that are irreparably damaged. During spermatogenesis, mitophagy can influence cell homeostasis and participates in a variety of membrane trafficking activities. Crucially, it has been demonstrated that defective mitophagy can impede spermatogenesis. Despite an increasing amount of evidence suggesting that mitophagy and mitochondrial dynamics preserve the fundamental level of cellular homeostasis, little is known about their role in developmentally controlled metabolic transitions and differentiation. It has been observed that male infertility is a result of mitophagy's impact on sperm motility. Furthermore, certain proteins related to autophagy have been shown to be present in mammalian spermatozoa. The mitochondria are the only organelle in sperm that can produce reactive oxygen species and finally provide energy for sperm movement. Furthermore, studies have shown that inhibited autophagy-infected spermatozoa had reduced motility and increased amounts of phosphorylated PINK1, TOM20, caspase 3/7, and AMPK. Therefore, in terms of reproductive physiology, mitophagy is the removal of mitochondria derived from sperm and the following preservation of mitochondria that are exclusively maternal.
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- 2024
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5. Optimal Allocation of Distributed Generation Using Improved Cuckoo Search Algorithm
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Adamu Shehu Timta, Mohammed Buba Umar, Ahmed Shehu Timta, Matthew Iyobhebhe, and Paul Thomas Muge
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Technology - Abstract
This work presents an improved cuckoo search algorithm based on Success Rate (CSA-SR) for optimal allocation of Distributed Generation (DG). This is necessary in order to improve the power quality of the distribution system by minimizing power loss and improving voltage stability. Voltage Stability Index (VSI) is applied to identify restricted unhealthy buses/areas in the distribution networks. The work is implemented on standard IEEE 33 Bus test systems. Newton Raphson Power Flow (NRPF) technique is used in MATLAB R2019b environment for the power flow analysis. The overall IEEE 33 Bus system real power loss obtained from the simulation result is found to be 202.7071MW at the base case. Following the application of 3 DGs using CSA-SR, the real power loss is found to be 113.9630 MW which shows a reduction of 88.441MW which is equivalent to 43.77% as related to the base case. The results minimized the system losses while significantly enhancing the voltage profile of the bus voltages as a result of optimal siting and sizing of the DG. These show that the CSA-SR technique outperformed PSO, which was used to ascertain the effectiveness of the developed scheme.
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- 2024
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6. Apoptosis, inflammation, and oxidative stress in infertility: A mini review
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Oluwafemi Adeleke Ojo, Pearl Ifunanya Nwafor-Ezeh, Damilare Emmanuel Rotimi, Matthew Iyobhebhe, Akingbolabo Daniel Ogunlakin, and Adebola Busola Ojo
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Apoptosis ,Infertility ,Inflammation ,Oxidative stress ,Toxicology. Poisons ,RA1190-1270 - Abstract
Infertility has been a major issue in our society for many years, and millions of couples all over the world are still experiencing it. There are several reasons for and causes of infertility in both men and women. Recent studies have shown that apoptosis, inflammation, and oxidative stress contribute immensely to infertility. The data regarding this report were obtained through a thorough review of scientific articles published in various databases, including Elsevier, Web of Science, PubMed, Scopus, and Google Scholar. Furthermore, PhD and MSc theses were also reviewed when compiling the data. Apoptosis, also known as ''programmed cell death,'' is a natural and harmless process that occurs in human beings. Although it can become harmful if altered, Inflammation, on the other hand, is the body’s reaction to detrimental stimuli caused by toxic substances or compounds, while oxidative stress is a phenomenon that results in an imbalance between the generation and aggregation of reactive oxygen species (ROS) in the cells against antioxidants. These three factors interchangeably bring about several reproductive disorders in the body, resulting in infertility. This review aims at discussing how apoptosis, inflammation, and oxidative stress play a role in human infertility. Availability of data and material: The datasets used and/or analyzed during the current study are available from the corresponding author upon reasonable request.
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- 2023
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7. GC-MS chemical profiling, antioxidant, anti-diabetic, and anti-inflammatory activities of ethyl acetate fraction of Spilanthes filicaulis (Schumach. and Thonn.) C.D. Adams leaves: experimental and computational studies
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Oluwafemi Adeleke Ojo, Akingbolabo Daniel Ogunlakin, Gideon Ampoma Gyebi, Damilare IyinKristi Ayokunle, Adeshina Isaiah Odugbemi, Dare Ezekiel Babatunde, Omolola Adenike Ajayi-Odoko, Matthew Iyobhebhe, Samson Chukwuemeka Ezea, Christopher Oloruntoba Akintayo, Ademola Ayeleso, Adebola Busola Ojo, and Omolara Olajumoke Ojo
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Spilanthes filicaulis ,antioxidant ,antidiabetic ,anti-inflammatory ,GC-MS profiling ,molecular docking and dynamic simulations ,Therapeutics. Pharmacology ,RM1-950 - Abstract
Introduction: This study aimed to investigate the chemical profile of GC-MS, antioxidant, anti-diabetic, and anti-inflammatory activities of the ethyl acetate fraction of Spilanthes filicaulis leaves (EFSFL) via experimental and computational studies.Methods: After inducing oxidative damage with FeSO4, we treated the tissues with different concentrations of EFSFL. An in-vitro analysis of EFSFL was carried out to determine its potential for antioxidant, anti-diabetic, and anti-inflammatory activities. We also measured the levels of CAT, SOD, GSH, and MDA.Results and discussion: EFSFL exhibited anti-inflammatory properties through membrane stabilizing properties (IC50 = 572.79 μg/ml), proteinase inhibition (IC50 = 319.90 μg/ml), and inhibition of protein denaturation (IC50 = 409.88 μg/ml). Furthermore, EFSFL inhibited α-amylase (IC50 = 169.77 μg/ml), α-glucosidase (IC50 = 293.12 μg/ml) and DPP-IV (IC50 = 380.94 μg/ml) activities, respectively. Our results indicated that induction of tissue damage reduced the levels of GSH, SOD, and CAT activities, and increased MDA levels. However, EFSFL treatment restores these levels to near normal. GC-MS profiling shows that EFSFL contains 13 compounds, with piperine being the most abundant. In silico interaction of the phytoconstituents using molecular and ensembled-based docking revealed strong binding tendencies of two hit compounds to DPP IV (alpha-caryophyllene and piperine with a binding affinity of −7.8 and −7.8 Kcal/mol), α-glucosidase (alpha-caryophyllene and piperine with a binding affinity of −9.6 and −8.9 Kcal/mol), and to α-amylase (piperine and Benzocycloheptano[2,3,4-I,j]isoquinoline, 4,5,6,6a-tetrahydro-1,9-dihydroxy-2,10-dimethoxy-5-methyl with a binding affinity of −7.8 and −7.9 Kcal/mol), respectively. These compounds also presented druggable properties with favorable ADMET. Conclusively, the antioxidant, antidiabetic, and anti-inflammatory activities of EFSFL could be due to the presence of secondary metabolites.
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- 2023
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8. Beet leaf (beta vulgaris L.) extract attenuates iron-induced testicular toxicity: Experimental and computational approach
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Oluwafemi Adeleke Ojo, Anthonia Oluyemi Agboola, Olalekan Bukunmi Ogunro, Matthew Iyobhebhe, Tobiloba Christiana Elebiyo, Damilare Emmanuel Rotimi, Joy Folashade Ayeni, Adebola Busola Ojo, Adeshina Isaiah Odugbemi, Samuel Ayodele Egieyeh, and Olarewaju Michael Oluba
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Beta vulgaris leaf ,Redox imbalance ,Testicular toxicity ,Computational models ,Science (General) ,Q1-390 ,Social sciences (General) ,H1-99 - Abstract
The purpose of this study was to investigate the protective effect of Beta vulgaris leaf extract (BVLE) on Fe2+-induced oxidative testicular damage via experimental and computational models. Oxidative testicular damage was induced via incubation of testicular tissue supernatant with 0.1 mM FeSO4 for 30 min at 37 °C. Treatment was achieved by incubating the testicular tissues with BVLE under the same conditions. The catalase (CAT), superoxide dismutase (SOD), glutathione (GSH), malondialdehyde (MDA), and nitric oxide (NO) levels, acetylcholinesterase (AChE), sodium-potassium adenosine triphosphatase (Na+/K + ATPase), ecto-nucleoside triphosphate diphosphohydrolase (ENTPDase), glucose-6-phosphatase (G6Pase), and fructose-1,6-bisphosphatase (F-1,6-BPase) were all measured in the tissues. We identified the bioactive compounds present using high-performance liquid chromatography (HPLC). Molecular docking and dynamic simulations were done on all identified compounds using a computational approach. The induction of testicular damage (p
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- 2023
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9. Therapeutic Study of Cinnamic Acid Derivative for Oxidative Stress Ablation: The Computational and Experimental Answers
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Oluwafemi Adeleke Ojo, Akingbolabo Daniel Ogunlakin, Rotdelmwa Filibis Maimako, Gideon Ampoma Gyebi, Christopher Busayo Olowosoke, Odunayo Anthonia Taiwo, Tobiloba Christiana Elebiyo, David Adeniyi, Bolaji David, Matthew Iyobhebhe, Juliana Bunmi Adetunji, Damilare IyinKristi Ayokunle, Adebola Busola Ojo, Ramzi A. Mothana, and Abdullah R. Alanzi
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cinnamic acid ,oxidative stress ,liver ,purinergic function ,molecular docking simulation ,density functional theory ,Organic chemistry ,QD241-441 - Abstract
This study aimed to examine the therapeutic activity of the cinnamic acid derivative KAD-7 (N′-(2,4-dichlorobenzylidene)-3-(4-methoxyphenyl) acrylohydrazide) on Fe2+-induced oxidative hepatic injury via experimental and computational models. In addition, the role of ATPase and ectonucleoside triphosphate diphosphohydrolase (ENTPDase) in the coordination of cellular signals is speculated upon to proffer suitable therapeutics for metabolic stress disorder upon their inhibition. While we know little about therapeutics with flexible dual inhibitors for these protein targets, this study was designed to screen KAD-7’s (N′-(2,4-dichlorobenzylidene)-3-(4-methoxyphenyl) acrylohydrazide) inhibitory potential for both protein targets. We induced oxidative hepatic damage via the incubation of hepatic tissue supernatant with 0.1 mM FeSO4 for 30 min at 37 °C. We achieved the treatment by incubating the hepatic tissues with KAD-7 under the same conditions. The catalase (CAT), glutathione (GSH), malondialdehyde (MDA), ATPase, and ENTPDase activity were all measured in the tissues. We predicted how the drug candidate would work against ATPase and ENTPDase targets using molecular methods. When hepatic injury was induced, there was a significant decrease in the levels of the GSH, CAT, and ENTPDase (p < 0.05) activities. In contrast, we found a noticeable rise in the MDA levels and ATPase activity. KAD-7 therapy resulted in lower levels of these activities overall (p < 0.05), as compared to the control levels. We found the compound to have a strong affinity for ATPase (−7.1 kcal/mol) and ENTPDase (−7.4 kcal/mol), and a better chemical reactivity than quercetin. It also met all drug-likeness parameters. Our study shows that KAD-7 can protect the liver from damage caused by FeSO4 by reducing oxidative stress and purinergic actions. Our studies indicate that KAD-7 could be developed as a therapeutic option since it can flexibly inhibit both ATPase and ENTPDase.
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- 2023
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10. Hop-Count Aware Wireless Body Area Network for Efficient Data Transmission
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Matthew Iyobhebhe, Aliyu D Usman, A M Tekanyi, and Ezekiel Ehimen Agbon
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Computer engineering. Computer hardware ,TK7885-7895 ,Mechanical drawing. Engineering graphics ,T351-385 - Abstract
This work focuses on the clustering in Wireless Body Area Network (WBAN). Recently, it was found that less attention was given to Line-of-Sight (LoS) and Non-Line-of-Sight (NLoS) clustering in WBAN. Past works on LoS clustering WBAN consider the problem of enhancing the network throughput and end-to-end delay of the network. However, the problem of necessary hop count for packet transmission has not been considered. The non-consideration of necessary nodes hop count degrades the performance of cluster-based WBAN as throughput of the network is reduced in addition to high end-to-end delay. This work develops a hop count aware WBAN for enhancing the performance of body nodes called improved Dual Sink Approach using Clustering in Body Area Network (iDSCB). The simulation results depicted that the hop distance criterion of iDCSB improved the performance of WBAN in terms of end-to-end delay and throughput by 3.16% and 6.59%, respectively.
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- 2022
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11. Antidiabetic activity of avocado seeds (Persea americana Mill.) in diabetic rats via activation of PI3K/AKT signaling pathway
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Oluwafemi Adeleke Ojo, Jennifer Chidubem Amanze, Abosede Itunuoluwa Oni, Susan Grant, Matthew Iyobhebhe, Tobiloba Christiana Elebiyo, Damilare Rotimi, Nnaemeka Tobechukwu Asogwa, Babatunji Emmanuel Oyinloye, Basiru Olaitan Ajiboye, and Adebola Busola Ojo
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Medicine ,Science - Abstract
Abstract The treatment of diabetes involves the use of herbal plants, attracting interest in their cost-effectiveness and efficacy. An aqueous extract of Persea americana seeds (AEPAS) was explored in this study as a possible therapeutic agent in rats with diabetes mellitus. The induction of diabetes in the rats was achieved by injecting 65 mg/kg body weight (BWt) of alloxan along with 5% glucose. This study was conducted using thirty-six (36) male Wistar rats. The animals were divided into 6 equal groups, (n = 6) and treated for 14 days. In vitro assays for total flavonoid, phenols, FRAP, DPPH, NO, α-amylase, and α-glucosidase, were performed. Biochemical indices fasting blood sugar (FBS), BWt, serum insulin, liver hexokinase, G6P, FBP, liver glycogen, IL-6, TNF-α, and NF-ĸB in the serum, were investigated as well as the mRNA expressions of PCNA, Bcl2, PI3K/Akt in the liver and pancreas. The in vitro analyses showed the potency of AEPAS against free radicals and its enzyme inhibitory potential as compared with the positive controls. AEPAS showed a marked decrease in alloxan-induced increases in FBG, TG, LDL-c, G6P, F-1, 6-BP, MDA, IL-6, TNF-α, and NF-ĸB and increased alloxan-induced decreases in liver glycogen, hexokinase, and HDL-c. The diabetic control group exhibited pancreatic dysfunction as evidenced by a reduction in serum insulin, HOMA-β, expressions of PI3K/AKT, Bcl-2, and PCNA combined with an elevation in HOMA-IR. The HPLC revealed luteolin and myricetin to be the phytochemicals that were present in the highest concentration in AEPAS. The outcome of this research showed that the administration of AEPAS can promote the activation of the PI3K/AkT pathway and the inhibition of β-cell death, which may be the primary mechanism by which AEPAS promotes insulin sensitivity and regulates glycolipid metabolism.
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- 2022
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12. A Review on Critical Data Transmission in Wireless Body Area Networks
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Matthew Iyobhebhe, Abdoulie Momodou. S Tekanyi, Aliyu D Usman, Benjamin kwenbe, and Ridwan O Eleshin
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Critical Data, Medical personnel, QoS, Sink node, Transceiver node, and WBANs. ,Technology - Abstract
Wireless body area networks (WBANs) assemble multiple transceiver nodes in, on, or around a patient's body to transmit physiological signals to the sink node and further send it to the medical personnel via a medical server. WBANs a sensor network that is characterized as energy-dependent. Due to this finite nature, the deployment of intelligent utilization is needed. Quality of service (QoS) is another area that needs rapt attention to receive exactly what was sent from the source node to the destination node and throughput. Critical data transmission is characterized by abnormal data status that requires an urgent response from the medical personnel without delay to save the patient's life. In this review article, we propose a review of critical data transmission in wireless body area networks. However, most past articles in this line focus more on energy-efficient, security and privacy, quality of the links, throughput, network maximization, and so on. None of them looks into the direction of transmitting critical data directly to the sink node without multi-hopping of the physiological signals between intermediate nodes, which wastes the time of transmission to save patient life. This disparity between these scholars motivates us to fill the gap between them. This review article briefly discussed the state-of-the-art critical data transmission in WBANs alongside the WBANs architecture and implementation. Furthermore, a pragmatic approach to determining the threshold's degree of critical data index sensed during transmission was also considered.
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- 2022
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13. Minimization of End-to-End Delay for an Improved Dual-Sink Cluster-Based Routing in WBAN
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Matthew Iyobhebhe, Eleje N E, Chikani N I, Onah M C, and Benjamin Kwembe
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Buffer Traffic estimation, Cluster WBANs, Hop-distance scenario, Sink node, and Sensor nodes. ,Technology - Abstract
Wireless Body Area Networks (WBANs) are an integral part of a Wireless sensor network, where sensor nodes are strategically placed in the human body to sense physiological signals and transmit them to the medical personnel via server for medical observations. Every sensor node in WBANs has a general limitation in energy efficiency, end-to-end delay, residual energy, etc. Also, the high energy consumption in WBANs is mainly due to the number of hops covered during physiological signal transmission. This work developed a hop-distance scenario to address these challenges and improve on what others have done. It buffered traffic estimation schemes to minimize end-to-end delay and the total network energy efficiency. This work minimizes end-to-end delay dual-sink cluster-based routing in WBANs by improving the existing dual-sink-sink cluster-based scheme (iDSCB). The simulation result shows that the Minimization of end-to-end delay of the improved dual-sink cluster-based (iDSCB) enhanced the performance of the current article DSCB in terms of end-to-end delay and residual energy by 3.15% and 8.88%, respectively.
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- 2022
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14. Enhancing Throughput Cluster-Based WBAN Using TDMA and CCA Scheme
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Matthew Iyobhebhe, A. S. Yaro, Habeeb Bello, E. E. Agbon, M. D. Al-Mustapha, and M. T. Kabir
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CCA, Sink node, Transceiver nodes, TDMA, Throughput, WBAN ,Technology - Abstract
WBAN comprises multiple sensor nodes strategically located on patients' bodies. They collect physiological signals from a patient under medical observation and transmit them to the medical personnel for further analysis via a medical server. These sensor nodes are energy-dependent. The challenges associated with WBAN are the power source, delay, and so on. Since their energy source is derived from rechargeable batteries, it is impossible to stop the network operation to replace the battery. Past articles concentrated more on the problem of enhancing network delay and throughput. However, they did not look into the area of TDMA and CCA schemes to improve their work. This brings their work into network energy degradation, which reduces their throughput. This article implements Enhancing throughput cluster-based DSCB by improving the existing Dual-sink clustering approach (DSCB). The simulation result depicted that the Enhanced throughput of iDSCB improved the performance of the current work DSCB in terms of throughput and End-to-End Delay by 6.60% and 3.14%, respectively.
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- 2022
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15. Phytochemical properties and pharmacological activities of the genus Pennisetum: A review
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Oluwafemi Adeleke Ojo, Adebola Busola Ojo, Morayo Barnabas, Matthew Iyobhebhe, Tobiloba Christiana Elebiyo, Ikponmwosa Owen Evbuomwan, Towobola Michael, Basiru Olaitan Ajiboye, Babatunji Emmanuel Oyinloye, and Omotade Ibidun Oloyede
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Pennisetum genus ,Phytochemical ,Pharmacological ,Traditional uses ,Toxicity ,Science - Abstract
Background: The genus Pennisetum contains remarkable natural bioactive components, and its 140 species are widely distributed in tropical and subtropical countries, where they are frequently used for therapeutic purposes such as the treatment of dysentery, fever, diabetes, and abdominal pain by indigenous people. However, the available information for this genus has not been thoroughly researched in terms of their bioactive principles and extracts. Aim of the review: The current review provides a profound perception, enhanced understanding, and comprehensive information on the traditional uses, phytochemical compounds, and biological activities of the genus Pennisetum, as well as toxicological perspectives. Furthermore, the significance of ethnopharmacological uses, application, and the beneficial potential of Pennisetum species for the management of a variety of diseases were thoroughly discussed. Materials and methods: The significant data of Pennisetum species was obtained through a thorough review of scientific articles published in a variety of databases, including Elsevier, Wiley, Web of Science, Springer, PubMed, Taylor and Francis, and Google Scholar. Furthermore, PhD and MSc theses were used in compiling and evaluating data obtained. Results: The ethnopharmacological applications of Pennisetum genus plants in various countries were established through detailed analysis of the aforementioned databases and thesis. So far, only a few species' chemical compositions and a total of 35 metabolites (excluding amino acids and fatty acid constituents) have been studied, including saponins, tannins, flavonoids, alkaloids, steroids, anthocyanin phenols, terpenoids, and others. The crude extracts were found to have antioxidant, antimicrobial, anti-cytotoxic, anti-hypertensive, and anti-inflammatory properties. Furthermore, the significance of ethnopharmacological applications, application, and the positive potential of Pennisetum species for the management of a variety of disorders was thoroughly examined. Conclusions: Although there are significant gaps in comprehending the traditional applications in the current available data, Pennisetum spp. are known to be rich in flavonoids, phenols, fatty acids, and amino acids with favorable medicinal characteristics. However, more research into the chemical makeup of innovative plant-derived medications is still needed. Furthermore, high-quality preclinical studies using a unique strategy are needed to assess the efficacy, safety, and mechanism of these plants.
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- 2022
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16. Antidiabetic Activity of Elephant Grass (Cenchrus Purpureus (Schumach.) Morrone) via Activation of PI3K/AkT Signaling Pathway, Oxidative Stress Inhibition, and Apoptosis in Wistar Rats
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Oluwafemi Adeleke Ojo, Abosede Itunuoluwa Oni, Susan Grant, Jennifer Amanze, Adebola Busola Ojo, Odunayo Anthonia Taiwo, Rotdelmwa Filibus Maimako, Ikponmwosa Owen Evbuomwan, Matthew Iyobhebhe, Charles Obiora Nwonuma, Omorefosa Osemwegie, Anthonia Oluyemi Agboola, Christopher Akintayo, Nnaemeka Tobechukwu Asogwa, Nada H. Aljarba, Saad Alkahtani, Gomaa Mostafa-Hedeab, Gaber El-Saber Batiha, and Oluyomi Stephen Adeyemi
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diabetes ,inflammation ,apoptosis ,PI3K/akt signalling pathway ,aqueous extract of Cenchrus purpureus ,Therapeutics. Pharmacology ,RM1-950 - Abstract
Ethnopharmacological Relevance: The management of diabetes over the years has involved the use of herbal plants, which are now attracting interest. We assessed the antidiabetic properties of aqueous extract of C. purpureus shoots (AECPS) and the mechanism of action on pancreatic ß-cell dysfunction.Methods: This study was conducted using Thirty-six 36) male Wistar rats. The animals were divided into six equal groups (n = 6) and treatment was performed over 14 days. To induce diabetes in the rats, a single dose of 65 mg/kg body weight of alloxan was administered intraperitoneal along with 5% glucose. HPLC analysis was carried out to identified potential compounds in the extract. In vitro tests α-amylase, and α-glucosidase were analyzed. Body weight and fasting blood glucose (FBG) were measured. Biochemical parameters, such as serum insulin, liver glycogen, hexokinase, glucose-6-phosphate (G6P), fructose-1,6-bisphosphatase (F-1,6-BP), interleukin-6 (IL-6), tumor necrosis factor-alpha (TNF-α), and nuclear factor kappa B (NF-ĸB), were analyzed. Additionally, mRNA expressions of phosphatidylinositol 3-kinase/protein kinase B (PI3K/AKT), B-cell lymphoma 2 (Bcl-2), and proliferating cell nuclear antigen (PCNA) were each evaluated.Results: This in vitro study showed inhibitory potency of Cenchrus purpureus extract (AECPS) as compared with the positive controls. AECPS showed a gradual decrease in alloxan-induced increases in FBG, total cholesterol (TC), triglycerides (TG), low density lipoprotein (LDL-c), G6P, F-1,6-BP, malondialdehyde (MDA), IL-6, TNF-α, and NF-ĸB and increased alloxan-induced decreases in liver glycogen, hexokinase, and high density lipoprotein (HDL-c). The diabetic control group exhibited pancreatic dysfunction as evidenced by the reduction in serum insulin, homeostasis model assessment of ß-cell function (HOMA-β), expressions of PI3K/AKT, Bcl-2, and PCNA combined with an elevation in homeostatic model assessment of insulin resistance (HOMA-IR). High performance liquid chromatography (HPLC) revealed 3-O-rutinoside, ellagic acid, catechin, rutin, and kaempferol in AECPS.Conclusion: AECPS showed efficient ameliorative actions against alloxan-induced pancreatic dysfunction, oxidative stress suppression as well as, inflammation, and apoptosis via the activation of PI3K/AKT signaling pathways.
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- 2022
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17. Reassessing vascular endothelial growth factor (VEGF) in anti-angiogenic cancer therapy
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Tobiloba C. Elebiyo, Damilare Rotimi, Ikponmwosa O. Evbuomwan, Rotdelmwa Filibus Maimako, Matthew Iyobhebhe, Oluwafemi Adeleke Ojo, Olarewaju M. Oluba, and Oluyomi S. Adeyemi
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Cancer ,Tumour blood vessels ,Angiogenesis ,Vascular endothelial growth factor (VEGF) ,Anti-angiogenic therapy ,Vascular normalization therapy ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
Vascularization is fundamental to the growth and spread of tumor cells to distant sites. As a consequence, angiogenesis, the sprouting of new blood vessels from existing ones, is a characteristic trait of cancer. In 1971, Judah Folkman postulated that tumour growth is angiogenesis dependent and that by cutting off blood supply, a neoplastic lesion could be potentially starved into remission. Decades of research have been devoted to understanding the role that vascular endothelial growth factor (VEGF) plays in tumor angiogenesis, and it has been identified as a significant pro-angiogenic factor that is frequently overexpressed within a tumor mass. Today, anti-VEGF drugs such as Sunitinib, Sorafenib, Axitinib, Tanibirumab, and Ramucirumab have been approved for the treatment of advanced and metastatic cancers. However, anti-angiogenic therapy has turned out to be more complex than originally thought. The failure of this therapeutic option calls for a reevaluation of VEGF as the major target in anti-angiogenic cancer therapy. The call for reassessment is based on two rationales: first, tumour blood vessels are abnormal, disorganized, and leaky; this not only prevents optimal drug delivery but it also promotes hypoxia and metastasis; secondly, tumour growth or regrowth might be blood vessel dependent and not angiogenesis dependent as tumour cells can acquire blood vessels via non-angiogenic mechanisms. Therefore, a critical assessment of VEGF, VEGFRs, and their inhibitors could glean newer options such as repurposing anti-VEGF drugs as vascular normalizing agents to enhance drug delivery of immune checkpoint inhibitors.
- Published
- 2022
- Full Text
- View/download PDF
18. Computer aided and experimental study of cinnamic acid analog for oxidative stress treatment: The therapeutic validations
- Author
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Oluwafemi Adeleke Ojo, Akingbolabo Daniel Ogunlakin, Matthew Iyobhebhe, Christopher Busayo Olowosoke, Odunayo Anthonia Taiwo, Akolade Akinola, Daniel Fadiora, Adeshina Isaiah Odugbemi, Gideon Ampoma Gyebi, Charles Obiora Nwonuma, Adebola Busola Ojo, and Omolara Olajumoke Ojo
- Subjects
Cinnamic acid analog ,Oxidative stress ,Hepatic toxicity ,Purinergic ,Molecular docking simulation ,ADMET profiling ,Computer applications to medicine. Medical informatics ,R858-859.7 - Abstract
Objectives: The purpose of this study was to investigate the therapeutic activity of the cinnamic acid derivative KAD-3 (ethyl 3-(4-methoxyphenyl) acrylate) on Fe2+-induced oxidative hepatic damage via experimental and computer aided studies. Methods: Oxidative hepatic damage was induced via incubation of tissue supernatant with 0.1 mM FeSO4 for 30 min at 37 °C ex vivo with different concentration of KAD-3. Molecular docking, ADMET profiling, and density functional theory were conducted on the candidate to filter the properties of the drug candidate for drug design. Key findings: GSH, CAT, and ENTPDase activities were reduced when hepatic damage was induced (p
- Published
- 2022
- Full Text
- View/download PDF
19. Elucidating the interactions of compounds identified from Aframomum melegueta seeds as promising candidates for the management of diabetes mellitus: A computational approach
- Author
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Oluwafemi Adeleke Ojo, Adebola Busola Ojo, Charles Okolie, Jadesola Abdurrahman, Morayo Barnabas, Ikponmwosa Owen Evbuomwan, Oluwabori Paul Atunwa, Bukola Atunwa, Matthew Iyobhebhe, Tobiloba Christiana Elebiyo, Charles Obiora Nwonuma, Abayomi Emmanuel Adegboyega, Safaa Qusti, Eida M. Alshammari, Helal F. Hetta, and Gaber El Saber Batiha
- Subjects
Aframomum melegueta ,Pharmacophore modeling ,QSAR ,Induced-fit docking-simulation ,Molecular docking ,MM-GBSA binding Energies ,Computer applications to medicine. Medical informatics ,R858-859.7 - Abstract
Type-2 diabetes mellitus (T2DM), is considered being a multifaceted disorder that presents a major therapeutic problem. Despite the widespread efforts in managing T2DM, drug discovery therapies remain insufficient. There are several new and vital antidiabetic drug agents under examination of many research clusters. Computational tools have influenced drug discovery at several levels. Hence, this study aimed to explain the molecular interactions via an in silico simulation approach between Aframomum melegueta seed-derived compounds as antidiabetic agents against carbohydrate metabolism regulatory target proteins (DPP-4, GSK-3, and GLP-1) involved in T2DM. Pharmacophore modeling, Auto-QSAR, induced-fit docking (IFD) simulation, free energy of binding affinity through the MM-GBSA method, and molecular docking were used to sort out the compounds as well as determining their drug ability. The results revealed the pharmacophore models created from the structures of DPP-4, GSK-3, and GLP-1 could determine the lead candidates with a restorative ability rate found near 100% of the actives in the comprehensive decoy database ranking. We predicted the pIC50 values of the compounds via a learning-based machine that was created by auto-QSAR. We authenticated the created model to confirm its analytical procedure. The greatest models attained for DPP-4, GSK-3, and GLP-1 were kpls_desc_35 (R2 = 0.73 and Q2 = 0.73), kpls_desc_4 (R2 = 0.72 and Q2 = 0.66), and kpls_radical_14 (R2 = 0.88 and Q2 = 0.64) and these confirmed models were used to predict the bioactivities of the hit candidates. While several isolated bioactive compounds from Aframomum melegueta revealed a better binding affinity score, binding free energy along with observance of RO5, only three compounds (ethinyl estradiol, 8-gingerol, and zingerone) revealed a more satisfactory pIC50. Thus, these compounds can be novel candidates for drug discovery in diabetes treatment.
- Published
- 2021
- Full Text
- View/download PDF
20. Deciphering the Interactions of Bioactive Compounds in Selected Traditional Medicinal Plants against Alzheimer’s Diseases via Pharmacophore Modeling, Auto-QSAR, and Molecular Docking Approaches
- Author
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Oluwafemi Adeleke Ojo, Adebola Busola Ojo, Charles Okolie, Mary-Ann Chinyere Nwakama, Matthew Iyobhebhe, Ikponmwosa Owen Evbuomwan, Charles Obiora Nwonuma, Rotdelmwa Filibus Maimako, Abayomi Emmanuel Adegboyega, Odunayo Anthonia Taiwo, Khalaf F. Alsharif, and Gaber El-Saber Batiha
- Subjects
Alzheimer’s ,pharmacophore modeling ,QSAR ,molecular docking ,bioactive compounds ,neurodegenerative diseases ,Organic chemistry ,QD241-441 - Abstract
Neurodegenerative diseases, for example Alzheimer’s, are perceived as driven by hereditary, cellular, and multifaceted biochemical actions. Numerous plant products, for example flavonoids, are documented in studies for having the ability to pass the blood-brain barrier and moderate the development of such illnesses. Computer-aided drug design (CADD) has achieved importance in the drug discovery world; innovative developments in the aspects of structure identification and characterization, bio-computational science, and molecular biology have added to the preparation of new medications towards these ailments. In this study we evaluated nine flavonoid compounds identified from three medicinal plants, namely T. diversifolia, B. sapida, and I. gabonensis for their inhibitory role on acetylcholinesterase (AChE), butyrylcholinesterase (BChE) and monoamine oxidase (MAO) activity, using pharmacophore modeling, auto-QSAR prediction, and molecular studies, in comparison with standard drugs. The results indicated that the pharmacophore models produced from structures of AChE, BChE and MAO could identify the active compounds, with a recuperation rate of the actives found near 100% in the complete ranked decoy database. Moreso, the robustness of the virtual screening method was accessed by well-established methods including enrichment factor (EF), receiver operating characteristic curve (ROC), Boltzmann-enhanced discrimination of receiver operating characteristic (BEDROC), and area under accumulation curve (AUAC). Most notably, the compounds’ pIC50 values were predicted by a machine learning-based model generated by the AutoQSAR algorithm. The generated model was validated to affirm its predictive model. The best models achieved for AChE, BChE and MAO were models kpls_radial_17 (R2 = 0.86 and Q2 = 0.73), pls_38 (R2 = 0.77 and Q2 = 0.72), kpls_desc_44 (R2 = 0.81 and Q2 = 0.81) and these externally validated models were utilized to predict the bioactivities of the lead compounds. The binding affinity results of the ligands against the three selected targets revealed that luteolin displayed the highest affinity score of −9.60 kcal/mol, closely followed by apigenin and ellagic acid with docking scores of −9.60 and −9.53 kcal/mol, respectively. The least binding affinity was attained by gallic acid (−6.30 kcal/mol). The docking scores of our standards were −10.40 and −7.93 kcal/mol for donepezil and galanthamine, respectively. The toxicity prediction revealed that none of the flavonoids presented toxicity and they all had good absorption parameters for the analyzed targets. Hence, these compounds can be considered as likely leads for drug improvement against the same.
- Published
- 2021
- Full Text
- View/download PDF
21. A Review on the Ethnobotanical, Phytochemistry, and Pharmacological Activities of Aristolochia longa L
- Author
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Oluwafemi Adeleke Ojo, Matthew Iyobhebhe, Bukola Atunwa, and Adebola Busola Ojo
- Subjects
Multidisciplinary ,Physics and Astronomy (miscellaneous) ,Chemistry (miscellaneous) ,Computer Science (miscellaneous) ,Biochemistry, Genetics and Molecular Biology (miscellaneous) - Published
- 2022
- Full Text
- View/download PDF
22. Effects of Annickia Chlorantha Bark Ethanolic Extract on Testicular Function Indices and the HPLC Fingerprint on Spermatogenic Type 1 & 2 Hexokinase Modulation
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Nwonuma, Charles, primary, Inemesit, Udofia, additional, O., Franscis Atanu, additional, Omoniwa, Babasoji, additional, Akinduko, Ayokunmi, additional, Osemwegie, Omorofosa, additional, Omodiagbe, David, additional, Matthew, Iyobhebhe, additional, and Alejolowo, Omokolade, additional
- Published
- 2023
- Full Text
- View/download PDF
23. Kolaviron, A Biflavonoid Compound: Its Pharmacological Activity and Therapeutic Efficacy
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Oluwafemi Adeleke Ojo, Damilare Rotimi, Jennifer Chidubem Amanze, Adebola Busola Ojo, Matthew Iyobhebhe, and Tobiloba Christiana Elebiyo
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General Pharmacology, Toxicology and Pharmaceutics - Abstract
Abstract: The use of herbal remedies for medicinal purposes is becoming more popular around the world. As a result, plants have become viable treatment options for a variety of diseases. Garcinia kola (bitter kola) is a perennially grown plant in the Guttiferae family that has been evaluated and reported to have numerous health-promoting properties. Kolaviron is a biflavanoid and major phytochemical found in Garcinia kola that includes Garcinia Biflavanoid-1 (GB-1), kolaflavanone, and Garcinia Biflavanoid-2 (GB-2). It is obtained as a fraction extracted from Garcinia kola. Kolaviron's pharmacological properties include anti-inflammatory, anti-spasmodic, ameliorative, anti-asthmatic, anti-cancer, anti-malarial, hepatoprotective, antioxidant, anti-atherogenic, neuroprotective, anti-diabetic, and anti-amnesic properties. Kolaviron is recommended for use in clinical settings because it has been shown to have a high therapeutic efficacy in clinical trials. The purpose of this review is to assess the therapeutic efficacy of kolaviron.
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- 2022
- Full Text
- View/download PDF
24. Antidiabetic Activity of Elephant Grass (Cenchrus Purpureus (Schumach.) Morrone)
- Author
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Oluwafemi Adeleke, Ojo, Abosede Itunuoluwa, Oni, Susan, Grant, Jennifer, Amanze, Adebola Busola, Ojo, Odunayo Anthonia, Taiwo, Rotdelmwa Filibus, Maimako, Ikponmwosa Owen, Evbuomwan, Matthew, Iyobhebhe, Charles Obiora, Nwonuma, Omorefosa, Osemwegie, Anthonia Oluyemi, Agboola, Christopher, Akintayo, Nnaemeka Tobechukwu, Asogwa, Nada H, Aljarba, Saad, Alkahtani, Gomaa, Mostafa-Hedeab, Gaber El-Saber, Batiha, and Oluyomi Stephen, Adeyemi
- Published
- 2021
25. Syzygium aromaticum (L.) Merr. & L.M.Perry mitigates iron-mediated oxidative brain injury via in vitro, ex vivo, and in silico approaches
- Author
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Adebola Busola Ojo, Gideon Ampoma Gyebi, Olayinka Alabi, Matthew Iyobhebhe, Adedeji Benedict Kayode, Charles Obiora Nwonuma, and Oluwafemi Adeleke Ojo
- Subjects
Inorganic Chemistry ,Organic Chemistry ,Spectroscopy ,Analytical Chemistry - Published
- 2022
- Full Text
- View/download PDF
26. Reassessing vascular endothelial growth factor (VEGF) in anti-angiogenic cancer therapy
- Author
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Tobiloba C. Elebiyo, Damilare Rotimi, Ikponmwosa O. Evbuomwan, Rotdelmwa Filibus Maimako, Matthew Iyobhebhe, Oluwafemi Adeleke Ojo, Olarewaju M. Oluba, and Oluyomi S. Adeyemi
- Subjects
Vascular Endothelial Growth Factor A ,Cancer Research ,Oncology ,Neovascularization, Pathologic ,Vascular Endothelial Growth Factors ,Neoplasms ,Humans ,Angiogenesis Inhibitors - Abstract
Vascularization is fundamental to the growth and spread of tumor cells to distant sites. As a consequence, angiogenesis, the sprouting of new blood vessels from existing ones, is a characteristic trait of cancer. In 1971, Judah Folkman postulated that tumour growth is angiogenesis dependent and that by cutting off blood supply, a neoplastic lesion could be potentially starved into remission. Decades of research have been devoted to understanding the role that vascular endothelial growth factor (VEGF) plays in tumor angiogenesis, and it has been identified as a significant pro-angiogenic factor that is frequently overexpressed within a tumor mass. Today, anti-VEGF drugs such as Sunitinib, Sorafenib, Axitinib, Tanibirumab, and Ramucirumab have been approved for the treatment of advanced and metastatic cancers. However, anti-angiogenic therapy has turned out to be more complex than originally thought. The failure of this therapeutic option calls for a reevaluation of VEGF as the major target in anti-angiogenic cancer therapy. The call for reassessment is based on two rationales: first, tumour blood vessels are abnormal, disorganized, and leaky; this not only prevents optimal drug delivery but it also promotes hypoxia and metastasis; secondly, tumour growth or regrowth might be blood vessel dependent and not angiogenesis dependent as tumour cells can acquire blood vessels via non-angiogenic mechanisms. Therefore, a critical assessment of VEGF, VEGFRs, and their inhibitors could glean newer options such as repurposing anti-VEGF drugs as vascular normalizing agents to enhance drug delivery of immune checkpoint inhibitors.
- Published
- 2021
27. Novel ketogenic diet formulation improves sucrose‐induced insulin resistance in canton strain Drosophila melanogaster
- Author
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A.A.A. Kayode, Omowumi T Kayode, Elizabeth Okoh, Matthew Iyobhebhe, Oluwafemi Adeleke Ojo, and Damilare Rotimi
- Subjects
Sucrose ,medicine.medical_specialty ,Antioxidant ,medicine.medical_treatment ,Biophysics ,Reductase ,Antioxidants ,Superoxide dismutase ,Lipid peroxidation ,chemistry.chemical_compound ,Insulin resistance ,Internal medicine ,medicine ,Animals ,Pharmacology ,biology ,Cell Biology ,Glutathione ,medicine.disease ,Drosophila melanogaster ,Endocrinology ,chemistry ,Catalase ,biology.protein ,Insulin Resistance ,Diet, Ketogenic ,Food Science ,Ketogenic diet - Abstract
This study investigates the antidiabetic effect of a ketogenic diet (KD) on sucrose-induced insulin resistance in the fruit fly model. The fruit flies were divided and grouped into four: Group A, B, C, and D, representing the control, high-sucrose diet (HSD), KD, and HSD + KD, respectively. The administration of the various treatments to the groups proceeded for 7 days. The flies were thereafter immobilized, homogenized, and the homogenates used for biochemical parameters determination. This includes glucose concentration, antioxidant status, 3-hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) reductase, total cholesterol (TC), triglycerides (TG), and protein concentration. There was a significant increase (p < .05) in weight gain, glucose concentration, TG, HMG-CoA reductase activity, TC, and lipid peroxidation status of the HSD group compared with the control and KD groups. The antioxidant enzymes measured (superoxide dismutase, catalase, and reduced glutathione) and protein concentrations were repressed significantly (p < .05) in the HD groups but significantly elevated (p < .05) in the KD, HSD + KD, and the control groups. The KD improved biochemical parameters altered during the onset of sucrose-induced insulin resistance. With further research on this, KD may emerge as the much-awaited treatment option for diabetes mellitus type 2 (T2DM) with almost reduced toxicity concerns. PRACTICAL APPLICATIONS: Novel KD are sources of dietary phytocompounds with proven antioxidant activities. The antidiabetic activity of the KD was investigated. The results showed that the KD proves to serve as a better effective antidiabetic option in Drosophila melanogaster. The observed results could provide the potential application of the KD as an alternative therapy for diabetes management.
- Published
- 2021
- Full Text
- View/download PDF
28. A Review on Dynamic Buffer Traffic Condition Protocol in Telemedicine
- Author
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Omojola Bankole Akinyele, Ezugwu Chukwudi, Ishaya Chollom Botson, Amlabu Caleb Akezi, James Gaina Bashayi, Agburu Adikpe, and Matthew Iyobhebhe
- Subjects
General Medicine - Abstract
Various MAC-protocol has been adopted over the years in Telemedicine, also known as Wireless Body Area Network system (WBANs), to enhance the proper transmission of the busy congestion of data message. However, these techniques could not coordinate traffic congestion in the receiver node, which could make the receiver nodes experience an "active mode" most of the time compared to the transmit node. This is dangerous to the network system because of uncontrollable energy usage. In this protocol, the intelligent sensor is strategically located around or implanted in the human body for the collection of human body physiological parameters. WBANs experienced some limitations such as latency and excessive consumption of energy which may hinder the lifetime maximization of the system if not taken care of properly. In this work, four elements are responsible for carrying-out only traffic data, and they are implemented by using the highest priority sensor nodes within a short period used for communicating to the Buffer Traffic Condition (BTC) discussed and the traffic measurement to mitigate active-mode interval in the receiving phase of the improved superframe structure of IEEE 802.15.6. Furthermore, meaningful information about the superframe to mitigate the busy traffic and enhance this protocol was also discussed as its possible functions with the help of an adaptive system. No article depicts the analysis of the work on the dynamic buffer traffic condition scheme, and this proposed scheme can improve on the existing one.
- Published
- 2022
- Full Text
- View/download PDF
29. Contraceptive and biochemical effect of juice extract of Allium cepa, Allium sativum, and their combination in Canton S fruit flies
- Author
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Damilare Rotimi, A.A.A. Kayode, Favor Emmanuel, Matthew Iyobhebhe, Oluwafemi Adeleke Ojo, and Omowumi T Kayode
- Subjects
Pharmacology ,Antioxidant ,biology ,Triglyceride ,Traditional medicine ,medicine.medical_treatment ,fungi ,Biophysics ,food and beverages ,Cell Biology ,Malondialdehyde ,Allium sativum ,biology.organism_classification ,Superoxide dismutase ,chemistry.chemical_compound ,Sativum ,chemistry ,Catalase ,medicine ,biology.protein ,Allium ,Food Science - Abstract
This study determines the contraceptive activity of Allium sativa (Garlic) and Allium cepa (Onion) juices on reproductive output and development of Drosophila melanogaster. The fruit flies were divided and grouped into 5, group A serves as the control, group B serves as the onion group, group C serves as the garlic group, group D serves as the onion + garlic group, while group E serves as the standard contraceptive group. Biochemical parameters measured were superoxide dismutase (SOD), Catalase (CAT), Glutathione-S-transferase (GST), malondialdehyde (MDA), nitric oxide (NO), total cholesterol (TC), triglyceride, mating test, and negative geotaxis. There was a significant reduction in the levels of MDA in onion, garlic, onion + garlic groups when compared with the control, in contrast, a significant increase was observed in SOD, CAT, and GST activities. Furthermore, there was a significant reduction in nitric oxide levels in garlic, onion + garlic extract with a corresponding increase in the standard contraceptive group. There was a significant reduction in the concentration of TC and HMG-CoA in garlic and standard contraceptive groups when compared with the control while triglyceride revealed a considerable increase in the garlic group when compared with the control. The mating test showed there was a considerable reduction in the onion, garlic, onion + garlic, and standard contraceptive when compared with the control. Taken together, Allium sativum proved to serve as a better contraceptive in D. melanogaster as a possible effective option for contraceptives, which is further, supported by their strong antioxidant activity. PRACTICAL APPLICATIONS: A. cepa and A. sativum are sources of dietary phytocompounds with proven antioxidant activities. The contraceptive activity of A. cepa and A. sativum juice extract was investigated. The results showed that A. cepa and A. sativum and their combination prove to serve as a better effective option for contraceptives in D. melanogaster. The observed results could provide the potential application of A. cepa and A. sativum as an alternative therapy for contraceptives.
- Published
- 2021
30. Exploring the potentials of some compounds from Garcinia kola seeds towards identification of novel PDE-5 inhibitors in erectile dysfunction therapy
- Author
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Rotdelmwa Filibus Maimako, Adebola Busola Ojo, Tobiloba Christaina Elebiyo, Omokolade Oluwaseyi Alejolowo, Damilare Rotimi, Charles Obiora Nwonuma, Matthew Iyobhebhe, and Oluwafemi Adeleke Ojo
- Subjects
Male ,Sildenafil ,Urology ,Garcinia kola ,Pharmacology ,Sildenafil Citrate ,chemistry.chemical_compound ,Endocrinology ,Erectile Dysfunction ,Medicine ,Humans ,Receptor ,Garcinoic acid ,biology ,business.industry ,Catechin ,General Medicine ,Phosphodiesterase 5 Inhibitors ,medicine.disease ,biology.organism_classification ,Molecular Docking Simulation ,Erectile dysfunction ,chemistry ,Docking (molecular) ,cGMP-specific phosphodiesterase type 5 ,Seeds ,business - Abstract
Erectile dysfunction (ED) is one of the main challenges occurring among men worldwide, and is characterised by trouble getting or keeping steady erection during sexual intercourse. Various drugs like sildenafil, a phosphodiesterase-5 inhibitor (PDE-5) are freely available in the pharmacies, though normally associated with several adverse. This study was designed to assess the molecular relations obtainable between catechin, garcinal, garcinoic acid and d-tocotrienol compounds isolated from Garcinia kola and targeted receptor linked to ED. These processes include the molecular docking of catechin, garcinal, garcinoic acid, d-tocotrienol, and sildenafil to receptor: PDE-5 via AutoDock Vina. Following the docking of catechin, garcinal, garcinoic acid and d-tocotrienol with the PDE-5-receptor protein, we observed that all are protein inhibitors with garcinoic acid showing better binding affinity -10.0 kcal/mol with PDE-5 receptor relevant to ED. Hence, the results provided insights into the development of garcinoic acid as a replacement for present ED management, with further analysis worth considering.
- Published
- 2021
31. Deciphering the Interactions of Bioactive Compounds in Selected Traditional Medicinal Plants against Alzheimer’s Diseases via Pharmacophore Modeling, Auto-QSAR, and Molecular Docking Approaches
- Author
-
Charles E. Okolie, Charles Obiora Nwonuma, Ikponmwosa Owen Evbuomwan, Matthew Iyobhebhe, Rotdelmwa Filibus Maimako, Khalaf F. Alsharif, Gaber El-Saber Batiha, Adebola Busola Ojo, Oluwafemi Adeleke Ojo, Odunayo Anthonia Taiwo, Abayomi Emmanuel Adegboyega, and Mary-Ann Chinyere Nwakama
- Subjects
Quantitative structure–activity relationship ,Phytochemicals ,Molecular Conformation ,Quantitative Structure-Activity Relationship ,Pharmaceutical Science ,Molecular Dynamics Simulation ,Ligands ,01 natural sciences ,Article ,Analytical Chemistry ,lcsh:QD241-441 ,03 medical and health sciences ,chemistry.chemical_compound ,lcsh:Organic chemistry ,Alzheimer Disease ,Drug Discovery ,Humans ,neurodegenerative diseases ,Gallic acid ,Physical and Theoretical Chemistry ,Butyrylcholinesterase ,030304 developmental biology ,0303 health sciences ,Virtual screening ,Binding Sites ,Plants, Medicinal ,bioactive compounds ,Molecular Structure ,Chemistry ,Drug discovery ,QSAR ,Organic Chemistry ,food and beverages ,molecular docking ,0104 chemical sciences ,Molecular Docking Simulation ,010404 medicinal & biomolecular chemistry ,Biochemistry ,Chemistry (miscellaneous) ,Docking (molecular) ,Apigenin ,Acetylcholinesterase ,pharmacophore modeling ,Molecular Medicine ,Cholinesterase Inhibitors ,Pharmacophore ,Alzheimer’s ,Protein Binding - Abstract
Neurodegenerative diseases, for example Alzheimer’s, are perceived as driven by hereditary, cellular, and multifaceted biochemical actions. Numerous plant products, for example flavonoids, are documented in studies for having the ability to pass the blood-brain barrier and moderate the development of such illnesses. Computer-aided drug design (CADD) has achieved importance in the drug discovery world, innovative developments in the aspects of structure identification and characterization, bio-computational science, and molecular biology have added to the preparation of new medications towards these ailments. In this study we evaluated nine flavonoid compounds identified from three medicinal plants, namely T. diversifolia, B. sapida, and I. gabonensis for their inhibitory role on acetylcholinesterase (AChE), butyrylcholinesterase (BChE) and monoamine oxidase (MAO) activity, using pharmacophore modeling, auto-QSAR prediction, and molecular studies, in comparison with standard drugs. The results indicated that the pharmacophore models produced from structures of AChE, BChE and MAO could identify the active compounds, with a recuperation rate of the actives found near 100% in the complete ranked decoy database. Moreso, the robustness of the virtual screening method was accessed by well-established methods including enrichment factor (EF), receiver operating characteristic curve (ROC), Boltzmann-enhanced discrimination of receiver operating characteristic (BEDROC), and area under accumulation curve (AUAC). Most notably, the compounds’ pIC50 values were predicted by a machine learning-based model generated by the AutoQSAR algorithm. The generated model was validated to affirm its predictive model. The best models achieved for AChE, BChE and MAO were models kpls_radial_17 (R2 = 0.86 and Q2 = 0.73), pls_38 (R2 = 0.77 and Q2 = 0.72), kpls_desc_44 (R2 = 0.81 and Q2 = 0.81) and these externally validated models were utilized to predict the bioactivities of the lead compounds. The binding affinity results of the ligands against the three selected targets revealed that luteolin displayed the highest affinity score of −9.60 kcal/mol, closely followed by apigenin and ellagic acid with docking scores of −9.60 and −9.53 kcal/mol, respectively. The least binding affinity was attained by gallic acid (−6.30 kcal/mol). The docking scores of our standards were −10.40 and −7.93 kcal/mol for donepezil and galanthamine, respectively. The toxicity prediction revealed that none of the flavonoids presented toxicity and they all had good absorption parameters for the analyzed targets. Hence, these compounds can be considered as likely leads for drug improvement against the same.
- Published
- 2021
32. Elucidating the interactions of compounds identified from Aframomum melegueta seeds as promising candidates for the management of diabetes mellitus: A computational approach
- Author
-
Jadesola Abdurrahman, Oluwabori Paul Atunwa, Matthew Iyobhebhe, Charles Obiora Nwonuma, Morayo Barnabas, Oluwafemi Adeleke Ojo, Bukola Atunwa, Helal F Hetta, Charles E. Okolie, Abayomi Emmanuel Adegboyega, Eida M. Alshammari, Tobiloba Christiana Elebiyo, Safaa Y. Qusti, Ikponmwosa Owen Evbuomwan, Gaber El-Saber Batiha, and Adebola Busola Ojo
- Subjects
Drug ,Chemistry ,Drug discovery ,QSAR ,media_common.quotation_subject ,In silico ,Computer applications to medicine. Medical informatics ,R858-859.7 ,Health Informatics ,Computational biology ,medicine.disease ,Diabetes treatment ,food.food ,Induced-fit docking-simulation ,food ,Docking (molecular) ,Diabetes mellitus ,Molecular docking ,medicine ,MM-GBSA binding Energies ,Aframomum melegueta ,Pharmacophore ,media_common ,Pharmacophore modeling - Abstract
Type-2 diabetes mellitus (T2DM), is considered being a multifaceted disorder that presents a major therapeutic problem. Despite the widespread efforts in managing T2DM, drug discovery therapies remain insufficient. There are several new and vital antidiabetic drug agents under examination of many research clusters. Computational tools have influenced drug discovery at several levels. Hence, this study aimed to explain the molecular interactions via an in silico simulation approach between Aframomum melegueta seed-derived compounds as antidiabetic agents against carbohydrate metabolism regulatory target proteins (DPP-4, GSK-3, and GLP-1) involved in T2DM. Pharmacophore modeling, Auto-QSAR, induced-fit docking (IFD) simulation, free energy of binding affinity through the MM-GBSA method, and molecular docking were used to sort out the compounds as well as determining their drug ability. The results revealed the pharmacophore models created from the structures of DPP-4, GSK-3, and GLP-1 could determine the lead candidates with a restorative ability rate found near 100% of the actives in the comprehensive decoy database ranking. We predicted the pIC50 values of the compounds via a learning-based machine that was created by auto-QSAR. We authenticated the created model to confirm its analytical procedure. The greatest models attained for DPP-4, GSK-3, and GLP-1 were kpls_desc_35 (R2 = 0.73 and Q2 = 0.73), kpls_desc_4 (R2 = 0.72 and Q2 = 0.66), and kpls_radical_14 (R2 = 0.88 and Q2 = 0.64) and these confirmed models were used to predict the bioactivities of the hit candidates. While several isolated bioactive compounds from Aframomum melegueta revealed a better binding affinity score, binding free energy along with observance of RO5, only three compounds (ethinyl estradiol, 8-gingerol, and zingerone) revealed a more satisfactory pIC50. Thus, these compounds can be novel candidates for drug discovery in diabetes treatment.
- Published
- 2021
33. A Review on Wireless Fidelity Co-Location Technology Adopted Indoors for Technology-Based Contact Tracing
- Author
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Agburu Adikpe, Matthew Iyobhebhe, Caleb Amlabu, Ishaya Botson, Bankole Omojola, James Bashayi, and Chukwudi Ezugwu
- Abstract
As the number of casualties and confirmed cases of the Coronavirus disease 2019 (COVID-19) gradually decreases, several countries across the globe are gradually trying to ease their society to some semblance of normalcy. However, to avoid systems that restrict social interactions in indoor environments, it is necessary to adopt solutions that redefine the ethos of social interactions within indoor environments. To achieve this, technology-based contact tracing (TCT) has been adopted as one of the systems used to mitigate the spread of the outbreak. On this premise, this review discusses co-location technologies suitable for indoor environments, with a specific focus on co-location solutions whose implementation costs are affordable, scalable, and whose access conditions utilize existing infrastructures that are available in off-the-shelf user equipment. This review focuses on wireless fidelity (WiFi) as a co-location technology adopted for TCT. On this premise, the limitations around adoption and recommendations, which highlight improvements, are compactly discussed around WiFi. In this context, a future research direction - on which this review is based - is compactly discussed.
- Published
- 2022
- Full Text
- View/download PDF
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