1
|
Adedara AO, Bressan GN, Dos Santos MM, Fachinetto R, Abolaji AO, Barbosa NV. Antioxidant responses driven by Hesperetin and Hesperidin counteract Parkinson's disease-like phenotypes in Drosophila melanogaster. Neurotoxicology 2024; 101:117-127. [PMID: 38423185 DOI: 10.1016/j.neuro.2024.02.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 02/05/2024] [Accepted: 02/26/2024] [Indexed: 03/02/2024]
Abstract
The study investigated the protective effects of Hesperetin (HSP) and Hesperidin (HSD) on 1 methyl, 4 phenyl, 1,2,3,6 tetrahydropyridine hydrochloride (MPTP)-induced Parkinsonism in Drosophila melanogaster (D. melanogaster). After a lifespan study to select exposure time and concentrations, flies were co-exposed to MPTP (0.4 mg/g diet), Hesperetin (0.2 and 0.4 mg/g diet), and Hesperidin (0.1 and 0.4 mg/g) for 7 days. In addition to in vivo parameters, we assayed some markers of oxidative stress and antioxidant status (lipid peroxidation, protein carbonylation, thiol content, hydrogen peroxide, and nitrate/nitrite levels, mRNA expression of Keap-1 (Kelch-like ECH associated protein 1), /Nrf2 (Nuclear factor erythroid 2 related factor 2), catalase, and glutathione-S-transferase (GST) activities), and cholinergic (acetyl cholinesterase activity (AChE) and dopaminergic signaling content and the mRNA expression of tyrosine hydroxylase (TH), monoamine oxidase (MAO-like) activity). In addition to increasing the lifespan of flies, we found that both flavonoids counteracted the adverse effects of MPTP on survival, offspring emergence, and climbing ability of flies. Both flavonoids also reduced the oxidative damage on lipids and proteins and reestablished the basal levels of pro-oxidant species and activities of antioxidant enzymes in MPTP-exposed flies. These responses were accompanied by the normalization of the mRNA expression of Keap1/Nrf2 disrupted in flies exposed to MPTP. MPTP exposure also elicited changes in mRNA expression and content of TH as well as in MAO and AChE activity, which were reversed by HST and HSD. By efficiently hindering the oxidative stress in MPTP-exposed flies, our findings support the promising role of Hesperetin and Hesperidin as adjuvant therapy to manage Parkinsonism induced by chemicals such as MPTP.
Collapse
Affiliation(s)
- Adeola Oluwatosin Adedara
- Programa de Pós-graduação em Bioquímica Toxicológica, Universidade Federal de Santa Maria, Avenida Roraima, 1000, Santa Maria, RS 97105-900, Brazil; Drosophila Laboratory, Drug Metabolism and Toxicology Unit, Department of Biochemistry, Faculty of Basic Medical Science, College of Medicine, University of Ibadan, Ibadan, Oyo State, Nigeria
| | - Getúlio Nicola Bressan
- Programa de Pós-graduação em Bioquímica Toxicológica, Universidade Federal de Santa Maria, Avenida Roraima, 1000, Santa Maria, RS 97105-900, Brazil
| | - Matheus Mulling Dos Santos
- Programa de Pós-graduação em Bioquímica Toxicológica, Universidade Federal de Santa Maria, Avenida Roraima, 1000, Santa Maria, RS 97105-900, Brazil
| | - Roselei Fachinetto
- Programa de Pós-graduação em Bioquímica Toxicológica, Universidade Federal de Santa Maria, Avenida Roraima, 1000, Santa Maria, RS 97105-900, Brazil
| | - Amos Olalekan Abolaji
- Drosophila Laboratory, Drug Metabolism and Toxicology Unit, Department of Biochemistry, Faculty of Basic Medical Science, College of Medicine, University of Ibadan, Ibadan, Oyo State, Nigeria.
| | - Nilda Vargas Barbosa
- Programa de Pós-graduação em Bioquímica Toxicológica, Universidade Federal de Santa Maria, Avenida Roraima, 1000, Santa Maria, RS 97105-900, Brazil.
| |
Collapse
|
2
|
Omotayo T, Otenaike TA, Adedara AO, Adeyemi OE, Jonhnson TO, Abolaji AO. Biological interactions and attenuation of MPTP-induced toxicity in Drosophila melanogaster by Trans-astaxanthin. Neurosci Res 2023; 196:52-58. [PMID: 37329901 DOI: 10.1016/j.neures.2023.06.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 06/08/2023] [Accepted: 06/13/2023] [Indexed: 06/19/2023]
Abstract
Trans-astaxanthin (TA) is a carotenoid with amphipathic chemical structure found in yeast, and aquatic organisms. It is known to possess both antioxidative and anti-inflammatory properties. This study was carried out to investigate the ameliorative action of TA on 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced toxicity in Drosophila melanogaster (Fruit fly). The flies were orally treated with TA (2.5 mg/10 g diet) and/or MPTP (500 µM) for 5 days. Thereafter, we evaluated selected biomarkers of locomotor deficits (acetylcholinesterase (AChE) and negative geotaxis), oxidative stress (hydrogen peroxide (H2O2), protein carbonyls (PC)), antioxidants (total thiols (T-SH), non-protein thiols, glutathione-S-transferase (GST) and catalase), and inflammation (nitric oxide (nitrite/nitrate) in the flies. Furthermore, we investigated molecular docking analysis of TA against Kelch-like ECH-associated protein 1 (Keap1)) of Homo sapiens and D. melanogaster. The results indicated that TA increased MPTP-induced decreased activities of AChE, GST, and catalase, as well as levels of non-protein thiols and T-SH compared with MPTP-treated flies (p < 0.05). Furthermore, TA attenuated inflammation, and improved locomotor deficit in the flies. The molecular docking data showed that TA had docking scores for binding both the Human and Drosophila Keap1, nearly closer to or higher than the standard inhibitor. The attenuating effects of TA against MPTP-induced toxicity could arise from its antioxidative and anti-inflammatory properties as well as its chemical structure.
Collapse
Affiliation(s)
- Tolulope Omotayo
- Drosophila Laboratory. Department of Biochemistry, Faculty of Basic Medical Sciences, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Titilayomi A Otenaike
- Drosophila Laboratory. Department of Biochemistry, Faculty of Basic Medical Sciences, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Adeola Oluwatosin Adedara
- Drosophila Laboratory. Department of Biochemistry, Faculty of Basic Medical Sciences, College of Medicine, University of Ibadan, Ibadan, Nigeria; Drosophila Research and Training Centre, Basorun, Ibadan, Nigeria
| | - Oluwagbenga Eyitayo Adeyemi
- Department of Biochemistry, Faculty of Basic Medical Sciences, College of Health Sciences, University of Jos, Jos, Nigeria
| | - Titilayo O Jonhnson
- Department of Biochemistry, Faculty of Basic Medical Sciences, College of Health Sciences, University of Jos, Jos, Nigeria
| | - Amos Olalekan Abolaji
- Drosophila Laboratory. Department of Biochemistry, Faculty of Basic Medical Sciences, College of Medicine, University of Ibadan, Ibadan, Nigeria; Drosophila Research and Training Centre, Basorun, Ibadan, Nigeria.
| |
Collapse
|
3
|
Adedara AO, Wildner G, Loreto JS, Dos Santos MM, Abolaji AO, Barbosa NV. Kaempferol counteracts toxicity induced by 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine in D. melanogaster: An implication of its mitoprotective activity. Neurotoxicology 2023; 95:23-34. [PMID: 36592898 DOI: 10.1016/j.neuro.2022.12.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Revised: 12/14/2022] [Accepted: 12/22/2022] [Indexed: 01/01/2023]
Abstract
The current study aimed to investigate whether kaempferol (KMP), the major bioactive component of green leafy vegetables, could counteract the toxicity elicited by 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) in Drosophila melanogaster or not. First, we performed a dose-response curve, where adult wild-type flies were fed on diet-containing different concentrations of KMP throughout their lifespan. Afterward, flies were fed on a diet containing MPTP (500 μM) and KMP (20 and 40 μM) for 7 days. The MPTP- fed flies presented a higher mortality rate, lower emergence rate, locomotor deficits, and disruption in circadian rhythm when compared to the control. MPTP exposure induced severe oxidative stress, which was marked by reduction in thiol content, overproduction of reactive species, lipid and protein oxidation, and disruption of enzymes of antioxidant and neurotransmission pathways. MPTP also compromised the mitochondrial dynamics and respiration of flies, affecting the electron transport chain, oxidative phosphorylation, and fusion/fission processes. Besides extending per se the lifespan of flies, KMP counteracted the toxic effects of MPTP on the circadian cycle, survival, climbing, and hatching rates. KMP was also effective in restoring the activities of acetylcholinesterase (AChE) and monoamine oxidase (MAO) enzymes, as well as in normalizing the levels of all oxidant/antioxidant markers disrupted in MPTP-fed flies. Indeed, KMP reestablished the mitochondrial functionality in MPTP- fed flies, restoring the electron transport system linked to mitochondrial complex I and II, and rescuing the mRNA transcription of genes associated with mitochondrial fusion and fission, namely OPA-1 (Optic atrophy 1) and DRP-1 (Dynamin related protein 1). Our results showed the efficacy of KMP in hindering the toxicity induced by MPTP in D. melanogaster and suggest that the mitoprotective action of flavonoid may be boosting its anti-parkinsonism activity in the model. Besides, the study showed that wild-type strains of D. melanogaster proved to be reproducible in vivo model to mimic parkinsonian phenotypes through exposure to the neurotoxin MPTP.
Collapse
Affiliation(s)
- Adeola Oluwatosin Adedara
- Programa de Pós-graduação em Bioquímica Toxicológica, Universidade Federal de Santa Maria, Avenida Roraima, 1000, 97105-900 Santa Maria, RS, Brazil; Drosophila Laboratory, Drug Metabolism and Toxicology Unit, Department of Biochemistry, Faculty of Basic Medical Science, College of Medicine, University of Ibadan, Ibadan, Oyo State, Nigeria
| | - Guilherme Wildner
- Programa de Pós-graduação em Bioquímica Toxicológica, Universidade Federal de Santa Maria, Avenida Roraima, 1000, 97105-900 Santa Maria, RS, Brazil
| | - Julia Sepel Loreto
- Programa de Pós-graduação em Bioquímica Toxicológica, Universidade Federal de Santa Maria, Avenida Roraima, 1000, 97105-900 Santa Maria, RS, Brazil
| | - Matheus Mulling Dos Santos
- Programa de Pós-graduação em Bioquímica Toxicológica, Universidade Federal de Santa Maria, Avenida Roraima, 1000, 97105-900 Santa Maria, RS, Brazil
| | - Amos Olalekan Abolaji
- Drosophila Laboratory, Drug Metabolism and Toxicology Unit, Department of Biochemistry, Faculty of Basic Medical Science, College of Medicine, University of Ibadan, Ibadan, Oyo State, Nigeria.
| | - Nilda Vargas Barbosa
- Programa de Pós-graduação em Bioquímica Toxicológica, Universidade Federal de Santa Maria, Avenida Roraima, 1000, 97105-900 Santa Maria, RS, Brazil.
| |
Collapse
|
4
|
Adedara AO, Otenaike TA, Farodoye OM, Abolaji AO. Ellagic acid mitigates rotenone‐induced damage via modulating mitochondria function in
Drosophila melanogaster. J Biochem Mol Toxicol 2023. [DOI: 10.1002/jbt.23332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Affiliation(s)
- Adeola Oluwatosin Adedara
- Drosophila Research and Training Centre Ibadan Nigeria
- Drosophila Laboratory, Department of Biochemistry, Faculty of Basic Medical Sciences, College of Medicine University of Ibadan Ibadan Nigeria
- Programa de Pós‐graduação em Bioquímica Toxicológica Universidade Federal de Santa Maria, Avenida Roraima Santa Maria Rio Grande do Sul Brazil
| | - Titilayomi A. Otenaike
- Drosophila Research and Training Centre Ibadan Nigeria
- Drosophila Laboratory, Department of Biochemistry, Faculty of Basic Medical Sciences, College of Medicine University of Ibadan Ibadan Nigeria
| | - Oluwabukola M. Farodoye
- Drosophila Research and Training Centre Ibadan Nigeria
- Drosophila Laboratory, Department of Biochemistry, Faculty of Basic Medical Sciences, College of Medicine University of Ibadan Ibadan Nigeria
| | - Amos Olalekan Abolaji
- Drosophila Research and Training Centre Ibadan Nigeria
- Drosophila Laboratory, Department of Biochemistry, Faculty of Basic Medical Sciences, College of Medicine University of Ibadan Ibadan Nigeria
| |
Collapse
|
5
|
Asejeje FO, Ogunro OB, Asejeje GI, Adewumi OS, Abolaji AO. An assessment of the ameliorative role of hesperidin in Drosophila melanogaster model of cadmium chloride-induced toxicity. Comp Biochem Physiol C Toxicol Pharmacol 2023; 263:109500. [PMID: 36347494 DOI: 10.1016/j.cbpc.2022.109500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 10/18/2022] [Accepted: 10/30/2022] [Indexed: 11/08/2022]
Abstract
Cadmium chloride (CdCl2) is an important heavy metal widely regarded as an environmental contaminant. Hesperidin, a flavanone glycoside found in citrus fruits, has an established properties against free radicals, apoptosis, and inflammation. The present study investigated the protective actions of hesperidin on CdCl2-induced oxidative damage and inflammation in Drosophila melanogaster. For 7 consecutive days via their diet regimen, the flies were exposed to CdCl2 alone (0.05 mM) or in combination with hesperidin (50 and 100 μM). Exposure to CdCl2 significantly (p < 0.05) increased mortality rate of flies, whereas the survived flies demonstrated significant oxidative toxicity from decreased activities of catalase and Glutathione S-transferase (GST) and Total Thiol (T-SH) and Non-Protein Thiols (NPSH) levels as well as accumulation of Nitric Oxide (NO (nitrite/nitrate)), protein carbonyl and Hydrogen Peroxide (H2O2). However, hesperidin-supplemented diet improved Acetylcholinesterase (AChE) activity, mitochondrial metabolic rate (cell viability), locomotor activity, and amelioration of oxidative damage and lipid peroxidation induced by CdCl2. The hesperidin diet supplement boosted the antioxidant milieu and ameliorated the oxidative damage in the treated flies. Overall, the findings revealed that hesperidin improved antioxidative protective capacity in Drosophila melanogaster model of CdCl2-induced toxicity. This suggests hesperidin as a potential therapeutic agent against oxidative stress disorders due to exposure to CdCl2 and or related toxicants.
Collapse
Affiliation(s)
| | | | - Gbolahan Iyiola Asejeje
- Department of Chemistry, University of Ibadan, Ibadan, Oyo State, Nigeria; Drosophila Research and Training Centre, A2 Ajao Dental Street, Salami Somade Estate, Off Iyaniwura Bus Stop, Basorun, Ibadan, Oyo State, Nigeria
| | | | - Amos Olalekan Abolaji
- Drosophila Research and Training Centre, A2 Ajao Dental Street, Salami Somade Estate, Off Iyaniwura Bus Stop, Basorun, Ibadan, Oyo State, Nigeria; Drosophila Laboratory, Drug Metabolism and Toxicology Unit, Department of Biochemistry, College of Medicine, University of Ibadan, Ibadan, Oyo State, Nigeria.
| |
Collapse
|
6
|
John R, Abolaji AO, Adedara AO, Ajayi AM, Aderibigbe AO, Umukoro S. Jobelyn® extends the life span and improves motor function in Drosophila melanogaster exposed to lipopolysaccharide via augmentation of antioxidant status. Metab Brain Dis 2022; 37:1031-1040. [PMID: 35156155 DOI: 10.1007/s11011-022-00919-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Accepted: 01/20/2022] [Indexed: 10/19/2022]
Abstract
Jobelyn® (JB), a dietary supplement, derived from polyphenol-rich leaf sheath of Sorghum bicolor, has been reported to attenuate sensorimotor deficits and oxidative stress evoked by complete Freund-adjuvant in mice. This present study evaluated its effects on the life span, motor function and changes in oxidative stress parameters as well as acetylcholinesterase activity in Drosophila melanogaster exposed to lipopolysaccharide (LPS). The flies (50 per vial), in 5 replicates were fed with LPS (250 μg/kg diet) alone or in combination with JB (0.25-1.0 mg/kg diet) daily for 7 days. The mortality rate and motor function were evaluated on day 7. The flies were afterwards processed for determination of oxidative stress parameters and acetylcholinesterase activity. The effects of JB (0.25-1.0 mg/g diet) on the longevity of Drosophila was also investigated wherein the flies were monitored daily for mortality throughout their lifespan. The flies exposed to LPS (250 μg/kg diet) had reduced life span and elevated oxidative stress when compared with control. However, JB (0.25 and 1.0 mg/kg diet) improved the motor function and also reduced the mortality rate of the flies exposed to LPS. It also restored the cellular antioxidant status and reduced acetylcholinesterase activity, accumulation of hydrogen peroxide as well as nitric oxide in Drosophila fed with LPS. JB also extended the longevity of the flies relative to control. The findings that JB improves motor function and extended the lifespan of Drosophila flies by boosting the antioxidant status and cholinergic function, suggest it might be helpful in delaying the onset of neuropsychiatric illnesses associated with the aging processes.
Collapse
Affiliation(s)
- Ruth John
- Neuropharmacology Unit, Department of Pharmacology and Therapeutics, College of Medicine, University of Ibadan, Sango-Ojo Road, Ibadan, Oyo State, Nigeria
| | - Amos Olalekan Abolaji
- Drosophila Laboratory, Drug Metabolism and Molecular Toxicology Unit, Department of Biochemistry, College of Medicine, University of Ibadan, Ibadan, Oyo State, Nigeria
| | - Adeola Oluwatosin Adedara
- Drosophila Laboratory, Drug Metabolism and Molecular Toxicology Unit, Department of Biochemistry, College of Medicine, University of Ibadan, Ibadan, Oyo State, Nigeria
| | - Abayomi Mayowa Ajayi
- Neuropharmacology Unit, Department of Pharmacology and Therapeutics, College of Medicine, University of Ibadan, Sango-Ojo Road, Ibadan, Oyo State, Nigeria
| | - Adegbuyi Oladele Aderibigbe
- Neuropharmacology Unit, Department of Pharmacology and Therapeutics, College of Medicine, University of Ibadan, Sango-Ojo Road, Ibadan, Oyo State, Nigeria
| | - Solomon Umukoro
- Neuropharmacology Unit, Department of Pharmacology and Therapeutics, College of Medicine, University of Ibadan, Sango-Ojo Road, Ibadan, Oyo State, Nigeria.
| |
Collapse
|
7
|
Johnson TO, Abolaji AO, Omale S, Longdet IY, Kutshik RJ, Oyetayo BO, Adegboyega AE, Sagay A. Benzo[a]pyrene and Benzo[a]pyrene-7,8-dihydrodiol-9,10-epoxide induced locomotor and reproductive senescence and altered biochemical parameters of oxidative damage in Canton-S Drosophila melanogaster. Toxicol Rep 2021; 8:571-580. [PMID: 33777703 PMCID: PMC7985712 DOI: 10.1016/j.toxrep.2021.03.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 01/25/2021] [Accepted: 03/06/2021] [Indexed: 01/20/2023] Open
Abstract
Benzo[a]pyrene (B[a]P) is a polycyclic aromatic hydrocarbon (PAH) commonly found in cigarette smoke, automobile exhaust fumes, grilled meat, and smoked food among others. Exposure to B[a]P is associated with a range of toxic effects including developmental, neurological, oxidative, inflammatory, mutagenic, carcinogenic and mortal. Efficient and more affordable experimental models like Drosophila melanogaster could provide more insight into the mechanism of PAH toxicity and help develop new strategies for prevention, diagnosis and treatment of PAH-related conditions. In this study, we examined the induction of some biochemical changes along with mortality and functional senescence by B[a]P and its metabolite, benzo[a]pyrene- 7,8-dihydrodiol-910-epoxide (BPDE) in the Canton-S strain of Drosophila melanogaster, with the aim to establish an alternative assay medium for B[a]P toxicity in flies. Flies were exposed to 2-200 μM of B[a]P and 1-10 μM of BPDE through diet for a seven-day survival assay followed by a four-day treatment to determine the effects of the compounds on negative geotaxis, fecundity and some biochemical parameters of oxidative damage. BPDE significantly reduced the survival rate of flies along the 7 days of exposure whereas B[a]P did not cause any significant change in the survival rate of flies. B[a]P and BPDE significantly reduced the climbing ability of flies after 4 days of exposure. Rate of emergence of flies significantly reduced at 10-200 μM of B[a]P and 5-10 μM of BPDE. Both compounds caused various levels of alterations in the values of reduced glutathione (GSH), total thiol (T-SH), glutathione-S-transferase (GST), catalase (CAT), hydrogen peroxide (H2O2), nitric oxide (NO) and acetylcholinesterase (AChE) of the flies. The compounds also exhibited high binding affinities and molecular interactions with the active site amino acid residues of Drosophila GST and the inhibitor binding site of Drosophila AChE in an in silico molecular docking analysis, with BPDE forming stable hydrogen bonds with AChE. Hence, the Canton-S strain of Drosophila melanogaster could offer a simple and affordable assay medium to study B[a]P toxicity.
Collapse
Affiliation(s)
- Titilayo Omolara Johnson
- Department of Biochemistry, Faculty of Basic Medical Sciences, College of Health Sciences, University of Jos, Jos, Nigeria
| | - Amos Olalekan Abolaji
- Department of Biochemistry, Faculty of Basic Medical Sciences, University of Ibadan, Ibadan, Nigeria
| | - Simeon Omale
- Department of Pharmacology and Toxicology, Faculty of Pharmaceutical Sciences, University of Jos, Jos, Nigeria
- Africa Center of Excellence in Phytomedicine Research and Development, University of Jos, Jos, Nigeria
| | - Ishaya Yohanna Longdet
- Department of Biochemistry, Faculty of Basic Medical Sciences, College of Health Sciences, University of Jos, Jos, Nigeria
| | - Richard Joseph Kutshik
- Department of Biochemistry, Faculty of Basic Medical Sciences, College of Health Sciences, University of Jos, Jos, Nigeria
| | - Bolaji Oyenike Oyetayo
- Department of Biochemistry, Faculty of Basic Medical Sciences, University of Ibadan, Ibadan, Nigeria
| | - Abayomi Emmanuel Adegboyega
- Department of Biochemistry, Faculty of Basic Medical Sciences, College of Health Sciences, University of Jos, Jos, Nigeria
| | - Atiene Sagay
- Department of Obstetrics and Gynecology, College of Health Sciences, University of Jos, Jos, Nigeria
| |
Collapse
|
8
|
Abolaji AO, Fasae KD, Iwezor CE, Farombi EO. D-Penicillamine prolongs survival and lessens copper-induced toxicity in Drosophila melanogaster. Toxicol Res (Camb) 2020; 9:346-352. [PMID: 32905187 DOI: 10.1093/toxres/tfaa032] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 04/02/2020] [Accepted: 04/24/2020] [Indexed: 12/18/2022] Open
Abstract
D-penicillamine (DPA) is an amino-thiol that has been established as a copper chelating agent for the treatment of Wilson's disease. DPA reacts with metals to form complexes and/or chelates. Here, we investigated the survival rate extension capacity and modulatory role of DPA on Cu2+-induced toxicity in Drosophila melanogaster. Adult Wild type (Harwich strain) flies were exposed to Cu2+ (1 mM) and/or DPA (50 μM) in the diet for 7 days. Additionally, flies were exposed to acute Cu2+ (10 mM) for 24 h, followed by DPA (50 μM) treatment for 4 days. Thereafter, the antioxidant status [total thiol (T-SH) and glutathione (GSH) levels and glutathione S-transferase and catalase activities] as well as hydrogen peroxide (H2O2) level and acetylcholinesterase activity were evaluated. The results showed that DPA treatment prolongs the survival rate of D. melanogaster by protecting against Cu2+-induced lethality. Further, DPA restored Cu2+-induced depletion of T-SH level compared to the control (P < 0.05). DPA also protected against Cu2+ (1 mM)-induced inhibition of catalase activity. In addition, DPA ameliorated Cu2+-induced elevation of acetylcholinesterase activity in the flies. The study may therefore have health implications in neurodegenerative diseases involving oxidative stress such as Alzheimer's disease.
Collapse
Affiliation(s)
- Amos Olalekan Abolaji
- Department of Biochemistry, Drosophila Laboratory, Molecular Drug Metabolism and Toxicology Unit, Faculty of Basic Medical Sciences, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Kehinde Damilare Fasae
- Department of Biochemistry, Drosophila Laboratory, Molecular Drug Metabolism and Toxicology Unit, Faculty of Basic Medical Sciences, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Chizim Elizabeth Iwezor
- Department of Biochemistry, Drosophila Laboratory, Molecular Drug Metabolism and Toxicology Unit, Faculty of Basic Medical Sciences, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Ebenezer Olatunde Farombi
- Department of Biochemistry, Drosophila Laboratory, Molecular Drug Metabolism and Toxicology Unit, Faculty of Basic Medical Sciences, College of Medicine, University of Ibadan, Ibadan, Nigeria
| |
Collapse
|
9
|
Fatoki TH, Ibraheem O, Abolaji AO, Sanni DM. In Silico study of anticarcinogenic potential of the selenoprotein BthD from Drosophila melanogaster. Identifying the anticancer peptide CRSUR from the conserved region. NBC 2020. [DOI: 10.36547/nbc.v19i1.576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
Abstract
Drosophila melanogaster is used as a model system in biomedical studies. Selenoprotein is the major biological form of selenium in eukaryotes. Selenoproteins are generally involved in catabolic pathways in bacteria and archaea, whereas it participates in anabolic and antioxidant processes in eukaryotic. In this study, anticancer potential of selenoprotein BthD of D. melanogaster was investigated using bioinformatics methods. Results showed that selenoprotein BthD of D. melanogaster may have dual properties as evident by its orthology with selenoprotein H (SelH) of Homo sapiens and conserved domain of fructokinase-like protein 2 of Vitis vinifera. These dual properties were also revealed in the phylogenetic analysis, while further structural modeling showed that selenoprotein BthD possibly exists as homotetramer in the native functional structure. The anticancer property of selenoprotein BthD was proposed to be by synergy of antioxidant or redox activities of thioredoxin and glutathione reductase (TGR) domain and the signaling function of fructokinase-like protein 2 domain both in Golgi apparatus and cytoplasm, through energy deprivation. The anticancer peptide CRSUR was identified from conserved region of selenoprotein BthD, of which its cyclic form showed potential anticancer properties predictively through E3 ubiquitin-protein ligase regulating NF-kappa-B signaling by unleashing cells for spontaneous formation of the ripoptosome.
Collapse
|
10
|
Kamdem JP, Roos DH, Sanmi AA, Calabró L, Abolaji AO, de Oliveira CS, Barros LM, Duarte AE, Barbosa NV, Souza DO, Rocha JBT. Productivity of CNPq Researchers from Different Fields in Biomedical Sciences: The Need for Objective Bibliometric Parameters-A Report from Brazil. Sci Eng Ethics 2019; 25:1037-1055. [PMID: 29404974 DOI: 10.1007/s11948-018-0025-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2017] [Accepted: 01/17/2018] [Indexed: 06/07/2023]
Abstract
In Brazil, the CNPq (National Council for Scientific and Technological Development) provides grants, funds and fellowships to productive scientists to support their investigations. They are ranked and categorized into four hierarchical levels ranging from PQ 1A (the highest) to PQ 1D (the lowest). Few studies, however, report and analyse scientific productivity in different sub-fields of Biomedical Sciences (BS), e.g., Biochemistry, Pharmacology, Biophysics and Physiology. In fact, systematic comparisons of productivity among the PQ 1 categories within the above sub-fields are lacking in the literature. Here, the scientific productivity of 323 investigators receiving PQ 1 fellowships (A to D levels) in these sub-fields of BS was investigated. The Scopus database was used to compile the total number of articles, citations, h-index values and authorship positions (first-, co- or last-listed author) in the most cited papers by researchers granted CNPq fellowships. We found that researchers from Pharmacology had the best performance for all of the parameters analysed, followed by those in Biochemistry. There was great variability in scientific productivity within the PQ 1A level in all of the sub-fields of BS, but not within the other levels (1B, 1C and 1D). Analysis of the most cited papers of PQ 1(A-D) researchers in Pharmacology revealed that the citations of researchers in the 1C and 1D levels were associated with publications with their senior supervisors, whereas those in the 1B level were less connected with their supervisors in comparison to those in 1A. Taken together, these findings suggest that the scientific performance of PQ 1A researchers in BS is not homogenous. In our opinion, parameters such as the most cited papers without the involvement of Ph.D. and/or post-doctoral supervisors should be used to make decisions regarding any given researcher's fellowship award level.
Collapse
Affiliation(s)
- Jean Paul Kamdem
- Centro de Ciências Biológicas e da Saúde-CCBS, Departamento de Ciências Biológicas, Universidade Regional do Cariri (URCA), Pimenta, Crato, CE, CEP 63105-000, Brazil.
- PGP Education in Science, Chemistry of Life and Health, Federal University of Rio Grande do Sul, Porto Alegre, RS, CEP 90035-003, Brazil.
- Departamento de Bioquímica e Biologia Molecular, Federal University of Santa Maria, Santa Maria, RS, Brazil.
| | - Daniel Henrique Roos
- Universidade Federal do Pampa-UNIPAMPA, Campus Uruguaiana BR-472 km 7, Uruguaiana, RS, CEP 97500-970, Brazil
| | - Adekunle Adeniran Sanmi
- Department of Biochemistry, Ladoke Akintola University of Technology, PMB 4000, Ogbomoso, Nigeria
| | - Luciana Calabró
- PGP Education in Science, Chemistry of Life and Health, Federal University of Rio Grande do Sul, Porto Alegre, RS, CEP 90035-003, Brazil
| | - Amos Olalekan Abolaji
- Drug Metabolism and Molecular Toxicology Research Laboratories, Department of Biochemistry, Faculty of Basic Medical Sciences, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | | | - Luiz Marivando Barros
- Centro de Ciências Biológicas e da Saúde-CCBS, Departamento de Ciências Biológicas, Universidade Regional do Cariri (URCA), Pimenta, Crato, CE, CEP 63105-000, Brazil
| | - Antonia Eliene Duarte
- Centro de Ciências Biológicas e da Saúde-CCBS, Departamento de Ciências Biológicas, Universidade Regional do Cariri (URCA), Pimenta, Crato, CE, CEP 63105-000, Brazil
| | - Nilda Vargas Barbosa
- Departamento de Bioquímica e Biologia Molecular, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Diogo Onofre Souza
- PGP Education in Science, Chemistry of Life and Health, Federal University of Rio Grande do Sul, Porto Alegre, RS, CEP 90035-003, Brazil
| | - João Batista Teixeira Rocha
- Departamento de Bioquímica e Biologia Molecular, Federal University of Santa Maria, Santa Maria, RS, Brazil.
| |
Collapse
|
11
|
Farombi EO, Abolaji AO, Adetuyi BO, Awosanya O, Fabusoro M. Neuroprotective role of 6-Gingerol-rich fraction of Zingiber officinale (Ginger) against acrylonitrile-induced neurotoxicity in male Wistar rats. J Basic Clin Physiol Pharmacol 2018; 30:jbcpp-2018-0114. [PMID: 30864424 DOI: 10.1515/jbcpp-2018-0114] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Accepted: 11/17/2018] [Indexed: 06/09/2023]
Abstract
Background Acrylonitrile (AN) is a neurotoxin that is widely used to manufacture synthetic fibres, plastics and beverage containers. Recently, we reported the ameliorative role of 6-gingerol-rich fraction from Zingiber officinale (Ginger, GRF) on the chlorpyrifos-induced toxicity in rats. Here, we investigated the protective role of GRF on AN-induced brain damage in male rats. Methods Male rats were orally treated with corn oil (2 mL/kg, control), AN (50 mg/kg, Group B), GRF (200 mg/kg, Group C), AN [50 mg/kg+GRF (100 mg/kg) Group D], AN [(50 mg/kg)+GRF (200 mg/kg) Group E] and AN [(50 mg/kg)+N-acetylcysteine (AC, 50 mg/kg) Group F] for 14 days. Then, we assessed the selected markers of oxidative damage, antioxidant status and inflammation in the brain of rats. Results The results indicated that GRF restored the AN-induced elevations of brain malondialdehyde (MDA), interleukin-6 (IL-6), tumour necrosis factor-α (TNF-α) and Nitric Oxide (NO) levels. GRF also prevented the AN-induced depletion of brain glutathione (GSH) level and the activities of Glutathione S-transferase (GST), glutathione peroxidase (GPx) and superoxide dismutase (SOD) in rats (p<0.05). Furthermore, GRF prevented the AN-induced cerebral cortex lesion and increased brain immunohistochemical expressions of Caspases-9 and -3. Conclusions Our data suggest that GRF may be a potential therapeutic agent in the treatment of AN-induced model of brain damage.
Collapse
Affiliation(s)
- Ebenezer Olatunde Farombi
- Molecular Drug Metabolism and Toxicology Research Laboratories, Department of Biochemistry, Faculty of Basic Medical Sciences, College of Medicine, University of Ibadan, Ibadan, Nigeria, Phone: +2348023470333, Fax: 234-2-8103043
| | - Amos Olalekan Abolaji
- Molecular Drug Metabolism and Toxicology Research Laboratories, Department of Biochemistry, Faculty of Basic Medical Sciences, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Babatunde Oluwafemi Adetuyi
- Molecular Drug Metabolism and Toxicology Research Laboratories, Department of Biochemistry, Faculty of Basic Medical Sciences, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Olaide Awosanya
- Molecular Drug Metabolism and Toxicology Research Laboratories, Department of Biochemistry, Faculty of Basic Medical Sciences, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Mobolaji Fabusoro
- Molecular Drug Metabolism and Toxicology Research Laboratories, Department of Biochemistry, Faculty of Basic Medical Sciences, College of Medicine, University of Ibadan, Ibadan, Nigeria
| |
Collapse
|
12
|
Akinyemi AJ, Oboh G, Ogunsuyi O, Abolaji AO, Udofia A. Curcumin-supplemented diets improve antioxidant enzymes and alter acetylcholinesterase genes expression level in Drosophila melanogaster model. Metab Brain Dis 2018; 33:369-375. [PMID: 28849357 DOI: 10.1007/s11011-017-0100-7] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Accepted: 08/21/2017] [Indexed: 11/24/2022]
Abstract
Curcumin, a bioactive polyphenolic compound in turmeric (Curcuma longa) rhizomes has been shown to exert anti-aging properties with limited scientific basis. Hence, this study sought to examine the antioxidant and anti-cholinesterase activities of curcumin-supplemented diets as well as their molecular effect on superoxide dismutase (SOD) and acetylcholinesterase (AChE) genes expression level associated with lifespan extension in Drosophila melanogaster model. In this experiment, D. melanogaster (both genders) of 1 to 3 days old were fed diets either containing no curcumin (control) or supplemented with curcumin at 0.2 and 1.0 mg/g of diet for 7 days. Subsequently, the survival and locomotor activities were determined. In addition, we evaluated RT-PCR expressions of SOD and AChE mRNA genes. Furthermore, catalase, SOD and AChE activities were determined. Curcumin-supplemented diet improves survival ability but did not affect locomotor activity when compared with the control. In addition, there was a significant increase in SOD and catalase with a concomitant decrease of AChE activities when compared with the control. Furthermore, curcumin-supplemented diets suppress AChE mRNA expression but no alteration on SOD gene expression level was observed when compared with control. In conclusion, our present results suggest that a down-regulation of AChE gene expression with a concomitant decrease of AChE activity as well as improving antioxidant status could be some possible mechanism in which curcumin exert anti-aging potential and increases lifespan of D. melanogaster.
Collapse
Affiliation(s)
- Ayodele Jacob Akinyemi
- Department of Biochemistry, College of Sciences, Afe Babalola University Ado-Ekiti, Ado Ekiti, Ekiti State, Nigeria.
- Department of Biochemistry, Federal University of Technology, Akure, Ondo-State, Nigeria.
| | - Ganiyu Oboh
- Department of Biochemistry, Federal University of Technology, Akure, Ondo-State, Nigeria
| | - Opeyemi Ogunsuyi
- Department of Biochemistry, Federal University of Technology, Akure, Ondo-State, Nigeria
- Department of Biomedical Technology, Federal University of Technology, Akure, P.M.B. 704, Nigeria
| | - Amos Olalekan Abolaji
- Department of Biochemistry, Faculty of Basic Medical Sciences, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Adetutu Udofia
- Department of Bioscience Center, International Institute of Tropical Agriculture, Ibadan, Nigeria
| |
Collapse
|
13
|
Farombi EO, Abolaji AO, Farombi TH, Oropo AS, Owoje OA, Awunah MT. Garcinia kola seed biflavonoid fraction (Kolaviron), increases longevity and attenuates rotenone-induced toxicity in Drosophila melanogaster. Pestic Biochem Physiol 2018; 145:39-45. [PMID: 29482730 DOI: 10.1016/j.pestbp.2018.01.002] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Revised: 12/20/2017] [Accepted: 01/10/2018] [Indexed: 06/08/2023]
Abstract
Rotenone, a naturally occurring and commonly used pesticide, has been established as a model for inducing Parkinson's Disease (PD) in rodents. Kolaviron is a biflavonoid complex from Garcinia kola seeds with anti-oxidative and anti-inflammatory properties. Here, we evaluated the ameliorative role of Kolaviron on rotenone-induced toxicity in Drosophila melanogaster. Flies for longevity study were exposed to Kolaviron (100-500mg/kg diet) throughout the lifespan. For biochemical study, Groups A, B and C flies were treated with ethanol (2.0%, control, vehicle), Kolaviron (200mg/kg diet) and rotenone (250μM) respectively. Flies in Group D were co-treated with both rotenone (250μM) and Kolaviron (200mg/kg diet) for 7days. Subsequently, selected markers of antioxidant status, inflammatory and neurotoxicity were evaluated in the flies. The results from longevity experiment showed that Kolaviron (200, 100, 300 and 400mg/kg) extended lifespan of flies by 38.2%, 20.6%, 11.8% and 2.9% respectively. Also, Kolaviron attenuated rotenone-induced inhibition of catalase, glutathione-S-transferase and acetylcholinesterase activities and depletion of total thiols content in flies. Moreover, Kolaviron prevented rotenone-induced increases in hydrogen peroxide and nitric oxide (nitrite and nitrate) levels and improved rotenone-induced decrease in locomotor performance of flies (p<0.05). Overall, this study evidenced for the first time, the lifespan extension property of Kolaviron and its chemoprotective role on rotenone-induced toxicity in D. melanogaster via anti-oxidative and anti-inflammatory mechanisms.
Collapse
Affiliation(s)
- Ebenezer Olatunde Farombi
- Drug Metabolism and Molecular Toxicology Research Laboratories, Department of Biochemistry, Faculty of Basic Medical Sciences, College of Medicine, University of Ibadan, Ibadan, Nigeria.
| | - Amos Olalekan Abolaji
- Drug Metabolism and Molecular Toxicology Research Laboratories, Department of Biochemistry, Faculty of Basic Medical Sciences, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Temitope Hannah Farombi
- Deparment of Medicine, College of Medicine, University of Ibadan, University College Hospital, Ibadan, Nigeria
| | - Abiola Surajudeen Oropo
- Drug Metabolism and Molecular Toxicology Research Laboratories, Department of Biochemistry, Faculty of Basic Medical Sciences, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Omowunmi Abigail Owoje
- Drug Metabolism and Molecular Toxicology Research Laboratories, Department of Biochemistry, Faculty of Basic Medical Sciences, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Mathew Terwase Awunah
- Drug Metabolism and Molecular Toxicology Research Laboratories, Department of Biochemistry, Faculty of Basic Medical Sciences, College of Medicine, University of Ibadan, Ibadan, Nigeria
| |
Collapse
|
14
|
Abolaji AO, Babalola OV, Adegoke AK, Farombi EO. Hesperidin, a citrus bioflavonoid, alleviates trichloroethylene-induced oxidative stress in Drosophila melanogaster. Environ Toxicol Pharmacol 2017; 55:202-207. [PMID: 28903082 DOI: 10.1016/j.etap.2017.08.038] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2017] [Revised: 08/18/2017] [Accepted: 08/24/2017] [Indexed: 06/07/2023]
Abstract
Trichloroethylene (TCE) is a chlorinated organic pollutant of groundwater with diverse toxic effects in animals and humans. Here, we investigated the ameliorative role of hesperidin, a citrus bioflavonoid on TCE-induced toxicity in Drosophila melanogaster. Four groups of D. melanogaster (50 flies/vial, with 5 vials/group) were exposed to ethanol (2.5%, control), HSP (400mg/10g diet), TCE (10μM/10g diet) and TCE (10μM/10g diet)+HSP (400mg/10g diet) respectively in the diet for 5days. Then, selected oxidative stress and antioxidant markers were evaluated. The results showed that TCE significantly increased the level of reactive oxygen species (ROS) and inhibited catalase, glutathione S-transferase and acetylcholinesterase (AChE) activities with concurrent depletion of total thiol level. However, co-administration of TCE and hesperidin mitigated TCE-induced depletion of antioxidants, and restored ROS level and AChE activity in the flies (p<0.05). Overall, hesperidin offered protective potency on TCE-induced oxidative stress in the flies via anti-oxidative mechanism.
Collapse
Affiliation(s)
- Amos Olalekan Abolaji
- Drug Metabolism and Molecular Toxicology Research Laboratories, Department of Biochemistry, Faculty of Basic Medical Sciences, College of Medicine, University of Ibadan, Ibadan, Nigeria.
| | - Oluwatoyin Victoria Babalola
- Drug Metabolism and Molecular Toxicology Research Laboratories, Department of Biochemistry, Faculty of Basic Medical Sciences, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Abimbola Kehinde Adegoke
- Drug Metabolism and Molecular Toxicology Research Laboratories, Department of Biochemistry, Faculty of Basic Medical Sciences, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Ebenezer Olatunde Farombi
- Drug Metabolism and Molecular Toxicology Research Laboratories, Department of Biochemistry, Faculty of Basic Medical Sciences, College of Medicine, University of Ibadan, Ibadan, Nigeria. /
| |
Collapse
|
15
|
Paul Kamdem J, Olalekan Abolaji A, Olusola Elekofehinti O, Olaposi Omotuyi I, Ibrahim M, Hassan W, Vargas Barbosa N, Onofre Souza D, Batista Teixeira da Rocha J. Therapeutic Potential of Plant Extracts and Phytochemicals Against Brain Ischemia-Reperfusion Injury: A Review. ACTA ACUST UNITED AC 2016. [DOI: 10.2174/2210315506666160819154213] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
16
|
Abolaji AO, Adesanoye OA, Awogbindin I, Farombi EO. Endocrine disruption and oxidative stress implications of artemether-lumefantrine combination therapy in the ovary and uterus of rats. Hum Exp Toxicol 2016; 35:1173-1182. [PMID: 26811345 DOI: 10.1177/0960327115626580] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
In the current study, we evaluated the endocrine disruption effect and oxidative stress implication of therapeutic dose of artemether-lumefantrine combination therapy on the ovary and uterus of rats. In this respect, female rats were divided into four groups: animals were per orally treated with tween 80 (control), artemether (4 mg kg-1 body weight), lumefantrine (24 mg kg-1 body weight) and artemether-lumefantrine (artemether, 4 mg kg-1 body weight and lumefantrine, 24 mg kg-1 body weight). We found that therapeutic doses of the drugs did not change the levels of ovarian hydrogen peroxide (H2O2) and malondialdehyde (MDA), but increased uterine levels of H2O2 and MDA and reduced ovarian and uterine levels of reduced glutathione. In addition, whilst ovarian glutathione peroxidase (GPx) activity reduced in the lumefantrine monotherapy group, uterine GPx increased in the artemether monotherapy as well as the artemether-lumefantrine groups. Furthermore, the drugs reduced ovarian and uterine glutathione- S-transferase and uterine superoxide dismutase activities. The drugs reduced oestrogen level, whereas follicle-stimulating hormone was reduced by lumefantrine and artemether-lumefantrine therapies. Additionally, artemether and lumefantrine monotherapies significantly increased prolactin and progesterone levels compared with the control ( p < 0.05). The results suggest that in the absence of malarial parasite infection, the drugs induced oxidative stress in the ovary and uterus and disrupt hormonal balance in the rats.
Collapse
Affiliation(s)
- A O Abolaji
- Drug Metabolism and Molecular Toxicology Research Laboratories, Department of Biochemistry, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - O A Adesanoye
- Drug Metabolism and Molecular Toxicology Research Laboratories, Department of Biochemistry, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - I Awogbindin
- Drug Metabolism and Molecular Toxicology Research Laboratories, Department of Biochemistry, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - E O Farombi
- Drug Metabolism and Molecular Toxicology Research Laboratories, Department of Biochemistry, College of Medicine, University of Ibadan, Ibadan, Nigeria
| |
Collapse
|
17
|
Abolaji AO, Toloyai PE, Odeleye TD, Akinduro S, Teixeira Rocha JB, Farombi EO. Hepatic and renal toxicological evaluations of an industrial ovotoxic chemical, 4-vinylcyclohexene diepoxide, in both sexes of Wistar rats. Environ Toxicol Pharmacol 2016; 45:28-40. [PMID: 27258136 DOI: 10.1016/j.etap.2016.05.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2016] [Revised: 05/09/2016] [Accepted: 05/12/2016] [Indexed: 06/05/2023]
Abstract
4-Vinylcyclohexene diepoxide (VCD) is an industrial occupational health hazard chemical because it induces ovotoxicity in rodents. The current study investigated the impacts of VCD on selected hepatic and renal markers of oxidative stress and inflammation in both sexes of Wistar rats. Thus, male and female rats were randomly distributed into four groups of ten rats per group, and dosed orally with VCD for 28days. The control male and female groups of rats received corn oil only, while each of the three remaining groups of both sexes of rats received VCD (100, 250 and 500mg/kg BW) respectively. Thereafter, biomarkers of hepatic and renal oxidative damage, inflammation and immunohistochemical expressions of iNOS, COX-2, caspase-9 and caspase-3 were evaluated. The results revealed that VCD increased markers of liver and kidney functions, oxidative damage and inflammation, and disrupted the antioxidant homeostasis of the rats (p<0.05). Lastly, VCD enhanced the immunohistochemical expressions of iNOS, COX-2, caspase-9 and caspase-3 in the liver of the rats. Thus, our data imply that VCD induced toxicity in the liver and kidney of rats via the combined impacts of oxidative damage and inflammation.
Collapse
Affiliation(s)
- Amos Olalekan Abolaji
- Drug Metabolism and Molecular Toxicology Research Laboratories, Department of Biochemistry, Faculty of Basic Medical Sciences, College of Medicine, University of Ibadan, Ibadan, Nigeria.
| | - Pere-Ebi Toloyai
- Drug Metabolism and Molecular Toxicology Research Laboratories, Department of Biochemistry, Faculty of Basic Medical Sciences, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Titilope Deborah Odeleye
- Drug Metabolism and Molecular Toxicology Research Laboratories, Department of Biochemistry, Faculty of Basic Medical Sciences, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Susan Akinduro
- Drug Metabolism and Molecular Toxicology Research Laboratories, Department of Biochemistry, Faculty of Basic Medical Sciences, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Joao Batista Teixeira Rocha
- Departamento de Bioquimica e Biologia Molecular, Bioquímica Toxicológica, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul 97105-900, Brazil
| | - Ebenezer Olatunde Farombi
- Drug Metabolism and Molecular Toxicology Research Laboratories, Department of Biochemistry, Faculty of Basic Medical Sciences, College of Medicine, University of Ibadan, Ibadan, Nigeria.
| |
Collapse
|
18
|
Abolaji AO, Awogbindin IO, Adedara IA, Farombi EO. Insecticide chlorpyrifos and fungicide carbendazim, common food contaminants mixture, induce hepatic, renal, and splenic oxidative damage in female rats. Hum Exp Toxicol 2016; 36:483-493. [DOI: 10.1177/0960327116652459] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The fungicide carbendazim (CBZ) and insecticide chlorpyrifos (CPF) are currently applied together by farmers for the control of pests. Here, we investigated the impacts of 7 days oral co-exposure to 10 mg/kg body weight of CPF and 50 mg/kg body weight of CBZ on selected oxidative stress and antioxidant biomarkers in the liver, kidney, and spleen of female rats. The results showed that while the body weight gain and relative organ weights were not significantly affected after separate exposure to CPF and CBZ, there was a significant decrease in the body weight gain with concomitant increases in the relative kidney and spleen weights of rats treated with the mixture. Also, CPF and CBZ co-exposure significantly increased the levels of aspartate aminotransferase (AST), alanine aminotransferase (ALT), urea, and creatinine ( p < 0.05) when compared with the groups treated with CBZ or CPF alone and the control. The significant decreases in both antioxidant enzymes activities and nonenzymatic antioxidant level following individual administration of CPF and CBZ to rats were intensified in the co-exposure group ( p < 0.05). Additionally, the marked increases in the levels of oxidative stress indices in liver, kidney, and spleen of rats treated with CPF or CBZ alone were intensified in the co-exposure group ( p < 0.05). Histopathologically, co-exposure to CPF and CBZ exacerbates their individual effects on the liver, kidney, and spleen. These findings showed that co-exposure to CPF and CBZ in rats elicited more severe oxidative damage on the liver, kidney, and spleen of the rats, indicative of an additive effect compared to CPF or CBZ alone and as such, may pose a greater environmental risk to humans.
Collapse
Affiliation(s)
- AO Abolaji
- Drug Metabolism and Toxicology Research Laboratories, Department of Biochemistry, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - IO Awogbindin
- Drug Metabolism and Toxicology Research Laboratories, Department of Biochemistry, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - IA Adedara
- Drug Metabolism and Toxicology Research Laboratories, Department of Biochemistry, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - EO Farombi
- Drug Metabolism and Toxicology Research Laboratories, Department of Biochemistry, College of Medicine, University of Ibadan, Ibadan, Nigeria
| |
Collapse
|
19
|
Waczuk EP, Kamdem JP, Abolaji AO, Meinerz DF, Caeran Bueno D, do Nascimento Gonzaga TKS, do Canto Dorow TS, Boligon AA, Athayde ML, da Rocha JBT, Ávila DS. Euphorbia tirucalli aqueous extract induces cytotoxicity, genotoxicity and changes in antioxidant gene expression in human leukocytes. Toxicol Res (Camb) 2015. [DOI: 10.1039/c4tx00122b] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The medicinal use of Euphorbia tirucalli has to be made with caution, as our study indicates that the aqueous extract induces genotoxicity and cytotoxicity in human leukocytes
Collapse
Affiliation(s)
| | - Jean Paul Kamdem
- Departamento de Química
- Centro de Ciências Naturais e Exatas
- Universidade Federal de Santa Maria
- Santa Maria
- Brazil
| | - Amos Olalekan Abolaji
- Departamento de Química
- Centro de Ciências Naturais e Exatas
- Universidade Federal de Santa Maria
- Santa Maria
- Brazil
| | - Daiane Francine Meinerz
- Departamento de Química
- Centro de Ciências Naturais e Exatas
- Universidade Federal de Santa Maria
- Santa Maria
- Brazil
| | - Diones Caeran Bueno
- Departamento de Química
- Centro de Ciências Naturais e Exatas
- Universidade Federal de Santa Maria
- Santa Maria
- Brazil
| | | | | | - Aline Augusti Boligon
- Programa de Pós-Graduação em Ciências Farmacêuticas
- Universidade Federal de Santa Maria
- Santa Maria
- Brazil
| | - Margareth Linde Athayde
- Programa de Pós-Graduação em Ciências Farmacêuticas
- Universidade Federal de Santa Maria
- Santa Maria
- Brazil
| | | | | |
Collapse
|
20
|
Ogunbolude Y, Ibrahim M, Elekofehinti OO, Adeniran A, Abolaji AO, Rocha JBT, Kamdem JP. Effects of Tapinanthus globiferus and Zanthoxylum zanthoxyloides extracts on human leukocytes in vitro. J Intercult Ethnopharmacol 2014; 3:167-72. [PMID: 26401368 PMCID: PMC4576816 DOI: 10.5455/jice.20140826110059] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2014] [Accepted: 08/26/2014] [Indexed: 12/21/2022]
Abstract
Objective: This study aimed at investigating the genotoxicity and cytotoxicity effect of Tapinanthus globiferus and Zanthoxylum zanthoxyloides to human leukocytes. In addition, the reductive potential and the chemical composition of the two plant extracts were also determined. Materials and Methods: Human leukocytes were obtained from healthy volunteer donors. The genotoxicity and cytotoxicity of T. globiferus and Z. zanthoxyloides were assessed using the comet assay and trypan blue exclusion, respectively. The antioxidant activity of the plant extracts was evaluated by the reducing power assay. Furthermore, high-performance liquid chromatography-diode array detector was used to characterize and quantify the constituents of these plants. Results: T. globiferus (10-150 µg/mL) was neither genotoxic nor cytotoxic at the concentrations tested, suggesting that it can be consumed safely at relatively high concentrations. However, Z. zanthoxyloides showed cytoxicity and genotoxicity to human leukocytes at the highest concentration tested (150 µg/mL). In addition, the total reducing power of T. globiferus was found higher than Z. zanthoxyloides in potassium ferricyanide reduction. Both plants extract contained flavonoids (rutin and quercetin) and phenolic acids (chlorogenic and caffeic). Conclusion: The results obtained support the fact that some caution should be paid regarding the dosage and the frequency of use of Z. zanthoxyloides extract.
Collapse
Affiliation(s)
- Yetunde Ogunbolude
- Department of Biochemistry, Federal University of Technology, PMB 704, Akure, Ondo, Nigeria
| | - Mohammad Ibrahim
- Department of Chemistry, Abdul Wali Khan University, Mardan Pakistan
| | | | - Adekunle Adeniran
- Department of Biochemistry, Ladoke Akintola University of Technology, Ogbomoso, Nigeria
| | - Amos Olalekan Abolaji
- Department of Biochemistry, Drug Metabolism and Molecular Toxicology Research Laboratories, Faculty of Basic Medical Sciences, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - João Batista Teixeira Rocha
- Department of Biochemistry and Molecular Biology, Post-Graduate Program in Biochemical Toxicology, Federal University of Santa Maria, Santa Maria-RS, CEP 97105-900, Brazil
| | - Jean Paul Kamdem
- Department of Biochemistry and Molecular Biology, Post-Graduate Program in Biochemical Toxicology, Federal University of Santa Maria, Santa Maria-RS, CEP 97105-900, Brazil ; Department of Biochemistry, Institute of Basic Health Science, Federal University of Rio Grande do Sul, Porto Alegre, CEP 90035-003, RS, Brazil
| |
Collapse
|
21
|
Olalekan Abolaji A, Paul Kamdem J, Henrique Lugokenski T, Kalar Nascimento T, Pansera Waczuk E, Olatunde Farombi E, da Silva Loreto ÉL, Teixeira Rocha JB. Involvement of oxidative stress in 4-vinylcyclohexene-induced toxicity in Drosophila melanogaster. Free Radic Biol Med 2014; 71:99-108. [PMID: 24681254 DOI: 10.1016/j.freeradbiomed.2014.03.014] [Citation(s) in RCA: 73] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2014] [Revised: 03/06/2014] [Accepted: 03/11/2014] [Indexed: 10/25/2022]
Abstract
4-Vinylcyclohexene (VCH) is a dimer of 1,3-butadiene produced as a by-product of pesticides, plastic, rubber, flame retardants, and tire production. Although, several studies have reported the ovotoxicity of VCH, information on a possible involvement of oxidative stress in the toxicity of this occupational chemical is scarce. Hence, this study was carried out to investigate further possible mechanisms of toxicity of VCH with a specific emphasis on oxidative stress using a Drosophila melanogaster model. D. melanogaster (both genders) of 1 to 3 days old were exposed to different concentrations of VCH (10 µM-1 mM) in the diet for 5 days. Subsequently, the survival and negative geotaxis assays and the quantification of reactive oxygen species (ROS) generation were determined. In addition, we evaluated RT-PCR expressions of selected oxidative stress and antioxidant mRNA genes (HSP27, 70, and 83, SOD, Nrf-2, MAPK2, and catalase). Furthermore, catalase, glutathione-S-transferase (GST), delta aminolevulinic acid dehydratase (δ-ALA-D), and acetylcholinesterase (AChE) activities were determined. VCH exposure impaired negative geotaxic behavior and induced the mRNA of SOD, Nrf-2, and MAPK2 genes expressions. There were increases in catalase and ROS production, as well as inhibitions of GST, δ-ALA-D, and AChE activities (P<0.05). Our results suggest that the VCH mechanism of toxicity is associated with oxidative damage, as evidenced by the alteration in the oxidative stress-antioxidant balance, and possible neurotoxic consequences due to decreased AChE activity, and impairments in negative geotaxic behavior. Thus, we conclude that D. melanogaster is a useful model for investigating the toxicity of VCH exposure, and here, we have provided further insights on the mechanism of VCH-induced toxicity.
Collapse
Affiliation(s)
- Amos Olalekan Abolaji
- Drug Metabolism and Molecular Toxicology Research Laboratories, Department of Biochemistry, Faculty of Basic Medical Sciences, College of Medicine, University of Ibadan, Ibadan, Nigeria; Departamento de Bioquimica e Biologia Molecular, Bioquímica Toxicológica, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul 97105-900, Brazil.
| | - Jean Paul Kamdem
- Departamento de Bioquimica e Biologia Molecular, Bioquímica Toxicológica, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul 97105-900, Brazil; Departamento de Bioquímica, Instituto de Ciências Básica da Saúde, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS CEP 90035-003, Brazil
| | - Thiago Henrique Lugokenski
- Departamento de Bioquimica e Biologia Molecular, Bioquímica Toxicológica, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul 97105-900, Brazil; Universidade Federal do Pampa - UNIPAMPA - Campus Caçapava do Sul - RS - Brazil
| | - Thallita Kalar Nascimento
- Departamento de Bioquimica e Biologia Molecular, Bioquímica Toxicológica, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul 97105-900, Brazil
| | - Emily Pansera Waczuk
- Departamento de Bioquimica e Biologia Molecular, Bioquímica Toxicológica, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul 97105-900, Brazil
| | - Ebenezer Olatunde Farombi
- Drug Metabolism and Molecular Toxicology Research Laboratories, Department of Biochemistry, Faculty of Basic Medical Sciences, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Élgion Lúcio da Silva Loreto
- Laboratório de Biologia Molecular - LabDros, Universidade Federal de Santa Maria, Santa Maria, Brazil, Rio Grande do Sul 97105-900, Brazil
| | - João Batista Teixeira Rocha
- Departamento de Bioquimica e Biologia Molecular, Bioquímica Toxicológica, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, Rio Grande do Sul 97105-900, Brazil.
| |
Collapse
|
22
|
Farombi EO, Abolaji AO, Adedara IA, Maduako I, Omodanisi I. Artemisinin induces hormonal imbalance and oxidative damage in the erythrocytes and uterus but not in the ovary of rats. Hum Exp Toxicol 2014; 34:83-92. [PMID: 24876631 DOI: 10.1177/0960327114532385] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Artemisinin is an antimalarial drug previously reported to induce neurotoxicity and embryotoxicity in animal models. This study investigated the erythrocytes and reproductive toxicity potentials of artemisinin in female rats. Animals were randomly divided into four study groups of eight rats each. The control group (group I) received corn oil, the vehicle, while groups II-IV were orally exposed to 7, 35 and 70 mg kg(-1) day(-1) of artemisinin, respectively, by gastric intubation for 7 consecutive days. Subsequently, we evaluated the impact of artemisinin on the endocrine environment and selected markers of oxidative damage and antioxidant status of the erythrocytes, ovary and uterus. Artemisinin significantly increased hydrogen peroxide (H2O2) and malondialdehyde (MDA) levels and decreased catalase, glutathione peroxidase and superoxide dismutase activities in erythrocytes and uterus of rats compared with control group (p < 0.05). However, artemisinin did not alter ovarian MDA, H2O2, glutathione levels and catalase activity, while ovarian and uterine histological assessment revealed absence of visible lesions. Moreover, artemisinin significantly decreased follicle-stimulating hormone and increased progesterone levels compared with control (p < 0.05). Thus, these data suggest that in the absence of malarial parasite infection, artemisinin induced hormonal imbalance and oxidative damage in the erythrocytes and uterus but spared the ovary of rats.
Collapse
Affiliation(s)
- E O Farombi
- Drug Metabolism and Molecular Toxicology Research Laboratories, Department of Biochemistry, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - A O Abolaji
- Drug Metabolism and Molecular Toxicology Research Laboratories, Department of Biochemistry, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - I A Adedara
- Drug Metabolism and Molecular Toxicology Research Laboratories, Department of Biochemistry, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - I Maduako
- Drug Metabolism and Molecular Toxicology Research Laboratories, Department of Biochemistry, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - I Omodanisi
- Drug Metabolism and Molecular Toxicology Research Laboratories, Department of Biochemistry, College of Medicine, University of Ibadan, Ibadan, Nigeria
| |
Collapse
|
23
|
Abolaji AO, Eteng MU, Omonua O, Adenrele Y. Influence of coadministration of artemether and lumefantrine on selected plasma biochemical and erythrocyte oxidative stress indices in female Wistar rats. Hum Exp Toxicol 2012; 32:206-15. [PMID: 23155202 DOI: 10.1177/0960327112464666] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Among the artemisinin-based combination therapy (ACT) regimens, artemisinin derivative, artemether in combination with lumefantrine (artemether-lumefantrine, AL) has achieved excellent results in the fight against malarial scourge. In this study, we evaluated the toxic potential of these drugs at the therapeutic doses in female Wistar rats. Animals were randomly divided into four groups: those administered 1% Tween 80 (control), those administered artemether (4 mg/kg body weight), those administered lumefantrine (24 mg/kg body weight), and those coadministered artemether (4 mg/kg body weight) and lumefantrine (24 mg/kg body weight). The drugs were orally administered twice daily for 3 days by gastric intubation after which selected plasma biochemical indices, and erythrocytes antioxidant defence and lipid peroxidation markers were evaluated. Coadministration of artemether and lumefantrine raised liver and renal function markers and increased atherogenic index. While reduced glutathione, glucose-6-phosphate dehydrogenase (G6PD) and catalase activities were reduced, glutathione peroxidase and glutathione-s-transferase activities increased in all the treated groups compared to the control group. The drugs caused significant (p < 0.05) elevation of malondialdehyde (MDA) levels compared to the control group. These results imply that coadministration of artemether and lumefantrine may increase the risks of atherosclerosis as well as liver and renal function impairments in the users. In addition, the drugs may also promote oxidative stress in the erythrocytes.
Collapse
Affiliation(s)
- A O Abolaji
- Drug Metabolism and Molecular Toxicology Research Laboratories, Department of Biochemistry, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | | | | | | |
Collapse
|
24
|
Olasehinde GI, Yah CS, Singh R, Ojuronbge OO, Ajayi AA, Valecha N, Abolaji AO, Adeyeba AO. Genetic diversity of Plasmodium falciparum field isolates from south western Nigeria. Afr Health Sci 2012; 12:355-61. [PMID: 23382752 DOI: 10.4314/ahs.v12i3.17] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Plasmodium falciparum the main causative agent of malaria is an important public health vector. With the use of PCR, its genetic diversity has been extensively studied with dearth information from Nigeria. METHODS In this study, 100 P. falciparum strains merozoite surface protein 1(msp-1), merozoite surface protein 2 (msp-2) and Glutamate rich protein (Glurp) from Ogun State General Hospitals were characterized. The genetic diversity of P. falciparum isolates was analyzed by restriction fragment length polymorphism following gel electrophoresis of DNA products from nested polymerase chain reactions (PCR) of their respective allelic families KI, MAD 20, RO33 (MSP-1);FC27, 3D7 (MSP-2) and Glutamate rich protein respectively. RESULTS Majority of the patients showed monoclonal infections while multiplicity of the infection for msp-1 and msp-2 were 1.1 and 1.2 respectively. The estimated number of genotypes was 8 msp-1 (4 KI; 3 MAD; 1 RO33) and 6 msp-2 (3 FC27; 3 3D7). 80% of the isolates coded for Glurp with allelic size ranged between 700 and 900 bp. CONCLUSION The allelic distributions however were similar to those previously reported in other endemic malaria countries. Future studies will be designed to include other malaria endemic regions of Nigeria such as the oil exploration regions.
Collapse
Affiliation(s)
- G I Olasehinde
- Department of Biological Sciences, College of Science and Technology, Covenant University, Ota, Nigeria
| | | | | | | | | | | | | | | |
Collapse
|
25
|
Adebayo AH, Abolaji AO, Kela R, Ayepola OO, Olorunfemi TB, Taiwo OS. Antioxidant activities of the leaves of Chrysophyllum albidum G. Pak J Pharm Sci 2011; 24:545-551. [PMID: 21959819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Chrysophyllum albidum G. is a tropical plant and commonly found in Nigeria. It belongs to the sapotaceae family and used in folklore in the treatment of yellow fever, malaria, diarrhea, vaginal and dermatological infections. The study was aimed at investigating the antioxidant properties of this plant by employing the in vitro and in vivo experimental models. The effect of DPPH free radical scavenging activity on the fractions of petroleum ether, ethanol, butanol, ethylacetate, and water of C. albidum was determined. The ethyl acetate fraction was purified in column chromatography to obtain myricetin rhamnoside. Structure elucidation was done by NMR and mass spectroscopic techniques. Furthermore, ethanol extract was administered to five groups of eight rats per group. The animals in the normal group were administered with vehicle alone for 7 days. The positive control animals were given vehicle on the first four days, and with the vehicle and hepatotoxin (CCl(4)) on the fifth, sixth and seventh day. The animals in the treatment category were respectively administered with 500, 1000 and 1500 mg/kg b.w. of extract & distilled water for the first four days, and with distilled water, extract and CCl(4) on the last three days. Animals were subsequently anaesthetized and blood samples were collected for catalase (CAT), malondialdehyde (MDA), reduced gluthathione (GSH) and superoxide dismutase (SOD) assays. The petroleum ether fraction showed the least antiradical activity (4057.5 ± 809.6 g/kg) while ethyl ether exhibited the highest activity (414.4 ± 92.0 g/kg). Myricetin rhamnoside also exhibited an excellent radical scavenging activity (314.1 ± 60.2) which was comparable to the positive control. Result from animal study showed that C. albidum exhibited significant (p < 0.05) differences on the activity of CAT, MDA and GSH. The plant could therefore be employed as sources of natural antioxidant boosters and for the treatment of some oxidative stress disorders in which free radicals are implicated.
Collapse
Affiliation(s)
- Abiodun Humphrey Adebayo
- Biochemistry and Molecular Biology Unit, Department of Biological Sciences, College of Science and Technology, Covenant University, PMB 1023, Canaan land, Ota, Ogun State, Nigeria.
| | | | | | | | | | | |
Collapse
|