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Kashif M, Nasir A, Gulzaman, Rafique MK, Abbas M, ur Rehman A, Riaz M, Rasool G, Mtewa AG. Unlocking the anti-diabetic potential of Gymnema sylvestre, Trigonella foenum-graecum, and their combination thereof: An in-vivo evaluation. Food Sci Nutr 2023; 11:7664-7672. [PMID: 38107140 PMCID: PMC10724615 DOI: 10.1002/fsn3.3685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 08/05/2023] [Accepted: 08/30/2023] [Indexed: 12/19/2023] Open
Abstract
The current study aimed to explore the anti-diabetic effect of aqueous extracts of Gymnema sylvestre, Trigonella foenum-graecum and mixture of both the plants in alloxan-induced diabetic rabbits. A total of 30 rabbits were grouped into six equal groups as: normal control, diabetic control, diabetic treated with 300 mg/kg body weight (bw) G. sylvestre, diabetic treated with 300 mg/kg bw T. foenum-graecum, diabetic treated with 300 mg/kg bw mixture of both the plants and diabetic treated with 500 mg/kg bw metformin for 4 weeks. Diabetes was induced to all the study group animals except normal control by intravenous administration of alloxan monohydrate (80 mg/kg bw). Blood glucose was measured by glucometer and other biochemical parameters were determined through various kit methods. Serum insulin was measured through ELISA kit method. Results showed that both the plants and metformin significantly (p < .05) decreased the fasting blood glucose. Hypoglycemic activity of aqueous extract of G. sylvestre and metformin was found slightly higher than aqueous extract of T. foenum-graecum and the mixture of both the plants. However, a significant (p < .05) rise in insulin secretion was observed in studied plants extract treated rabbits. Serum urea, creatinine, and liver enzymes were found reduced significantly (p < .05) in treated rabbits whereas packed cell volume was also returned to normal in treated animals as compared to control group. The study concluded that G. sylvestre and T. foenum-graecum extracts have comparable effects with metformin in normalizing the blood glucose level and have more pronounced effect than metformin in restoring the serum biochemical parameters to normal levels. Hence, these plants may be the good alternative medicine in managing the diabetes mellitus.
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Affiliation(s)
- Muhammad Kashif
- Department of Clinical Sciences (Section Clinical Medicine), College of Veterinary and Animal SciencesUniversity of Veterinary and Animal Sciences, Lahore (Jhang Campus)JhangPakistan
| | - Amar Nasir
- Department of Clinical Sciences (Section Clinical Medicine), College of Veterinary and Animal SciencesUniversity of Veterinary and Animal Sciences, Lahore (Jhang Campus)JhangPakistan
| | - Gulzaman
- Department of Clinical Sciences (Section Clinical Medicine), College of Veterinary and Animal SciencesUniversity of Veterinary and Animal Sciences, Lahore (Jhang Campus)JhangPakistan
| | - Muhammad Kamran Rafique
- Department of Pathobiology, College of Veterinary and Animal SciencesUniversity of Veterinary and Animal Sciences, Lahore (Jhang Campus)JhangPakistan
| | - Mazhar Abbas
- Department of Basic Sciences (Section Biochemistry), College of Veterinary and Animal SciencesUniversity of Veterinary and Animal Sciences, Lahore (Jhang Campus)JhangPakistan
| | - Aziz ur Rehman
- Department of Pathobiology, College of Veterinary and Animal SciencesUniversity of Veterinary and Animal Sciences, Lahore (Jhang Campus)JhangPakistan
| | - Muhammad Riaz
- Department of Allied Health SciencesUniversity of SargodhaSargodhaPakistan
| | - Ghulam Rasool
- Department of Allied Health SciencesUniversity of SargodhaSargodhaPakistan
| | - Andrew G. Mtewa
- Chemistry Section, Malawi Institute of TechnologyMalawi University of Science and TechnologyLimbeMalawi
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Okella H, Okello E, Mtewa AG, Ikiriza H, Kaggwa B, Aber J, Ndekezi C, Nkamwesiga J, Ajayi CO, Mugeni IM, Ssentamu G, Ochwo S, Odongo S, Tolo CU, Kato CD, Engeu PO. ADMET profiling and molecular docking of potential antimicrobial peptides previously isolated from African catfish, Clarias gariepinus. Front Mol Biosci 2022; 9:1039286. [PMID: 36567944 PMCID: PMC9772024 DOI: 10.3389/fmolb.2022.1039286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 11/07/2022] [Indexed: 12/12/2022] Open
Abstract
Amidst rising cases of antimicrobial resistance, antimicrobial peptides (AMPs) are regarded as a promising alternative to traditional antibiotics. Even so, poor pharmacokinetic profiles of certain AMPs impede their utility necessitating, a careful assessment of potential AMPs' absorption, distribution, metabolism, excretion, and toxicity (ADMET) properties during novel lead exploration. Accordingly, the present study utilized ADMET scores to profile seven previously isolated African catfish antimicrobial peptides (ACAPs). After profiling, the peptides were docked against approved bacterial protein targets to gain insight into their possible mode of action. Promising ACAPs were then chemically synthesized, and their antibacterial activity was validated in vitro utilizing the broth dilution method. All seven examined antimicrobial peptides passed the ADMET screening, with two (ACAP-IV and ACAP-V) exhibiting the best ADMET profile scores. The ACAP-V had a higher average binding energy (-8.47 kcal/mol) and average global energy (-70.78 kcal/mol) compared to ACAP-IV (-7.60 kcal/mol and -57.53 kcal/mol), with the potential to penetrate and disrupt bacterial cell membrane (PDB Id: 2w6d). Conversely, ACAP-IV peptide had higher antibacterial activity against E. coli and S. aureus (Minimum Inhibitory Concentration, 520.7 ± 104.3 μg/ml and 1666.7 ± 416.7 μg/ml, respectively) compared to ACAP-V. Collectively, the two antimicrobial peptides (ACAP-IV and ACAP-V) are potential novel leads for the food, cosmetic and pharmaceutical industries. Future research is recommended to optimize the expression of such peptides in biological systems for extended evaluation.
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Affiliation(s)
- Hedmon Okella
- Veterinary Medicine Teaching and Research Center, School of Veterinary Medicine, University of California, Davis, Tulare, CA, United States,Pharm-Biotechnology and Traditional Medicine Centre, Mbarara University of Science and Technology, Mbarara, Uganda,*Correspondence: Hedmon Okella,
| | - Emmanuel Okello
- Veterinary Medicine Teaching and Research Center, School of Veterinary Medicine, University of California, Davis, Tulare, CA, United States,Department of Population Health and Reproduction, School of Veterinary Medicine, University of California, Davis, Davis, CA, United States
| | - Andrew Glory Mtewa
- Chemistry Section, Malawi Institute of Technology, Malawi University of Science and Technology, Limbe, Malawi
| | - Hilda Ikiriza
- Pharm-Biotechnology and Traditional Medicine Centre, Mbarara University of Science and Technology, Mbarara, Uganda
| | - Bruhan Kaggwa
- Pharm-Biotechnology and Traditional Medicine Centre, Mbarara University of Science and Technology, Mbarara, Uganda,Department of Pharmacy, College of Health Sciences, Makerere University, Kampala, Uganda
| | - Jacqueline Aber
- Pharm-Biotechnology and Traditional Medicine Centre, Mbarara University of Science and Technology, Mbarara, Uganda,Department of Pharmacy, Faculty of Medicine, Gulu University, Gulu, Uganda
| | | | - Joseph Nkamwesiga
- International Livestock Research Institute, Nairobi, Kenya,Institut für Virologie, Freie Universität, Berlin, Germany
| | - Clement Olusoji Ajayi
- Pharm-Biotechnology and Traditional Medicine Centre, Mbarara University of Science and Technology, Mbarara, Uganda
| | - Ivan Mulongo Mugeni
- Medical Entomology Laboratory, Infectious Diseases Research Collaboration, Kampala, Uganda
| | - Geofrey Ssentamu
- Department of Biotechnical and Diagnostic Sciences, College of Veterinary Medicine, Animal Resources and Biosecurity, Makerere University, Kampala, Uganda
| | - Sylvester Ochwo
- Center for Animal Health and Food Safety, University of Minnesota, St. Paul, MN, United States
| | - Steven Odongo
- Department of Biotechnical and Diagnostic Sciences, College of Veterinary Medicine, Animal Resources and Biosecurity, Makerere University, Kampala, Uganda
| | - Casim Umba Tolo
- Pharm-Biotechnology and Traditional Medicine Centre, Mbarara University of Science and Technology, Mbarara, Uganda
| | - Charles Drago Kato
- Department of Biotechnical and Diagnostic Sciences, College of Veterinary Medicine, Animal Resources and Biosecurity, Makerere University, Kampala, Uganda
| | - Patrick Ogwang Engeu
- Pharm-Biotechnology and Traditional Medicine Centre, Mbarara University of Science and Technology, Mbarara, Uganda
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Okella H, Ikiriza H, Ochwo S, Ajayi CO, Ndekezi C, Nkamwesiga J, Kaggwa B, Aber J, Mtewa AG, Koffi TK, Odongo S, Vertommen D, Kato CD, Ogwang PE. Identification of Antimicrobial Peptides Isolated From the Skin Mucus of African Catfish, Clarias gariepinus (Burchell, 1822). Front Microbiol 2021; 12:794631. [PMID: 34987491 PMCID: PMC8721588 DOI: 10.3389/fmicb.2021.794631] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 11/23/2021] [Indexed: 12/17/2022] Open
Abstract
Antimicrobial peptides (AMPs) constitute a broad range of bioactive compounds in diverse organisms, including fish. They are effector molecules for the innate immune response, against pathogens, tissue damage and infections. Still, AMPs from African Catfish, Clarias gariepinus, skin mucus are largely unexplored despite their possible therapeutic role in combating antimicrobial resistance. In this study, African Catfish Antimicrobial peptides (ACAPs) were identified from the skin mucus of African Catfish, C. gariepinus. Native peptides were extracted from fish mucus scrapings in 10% acetic acid (v/v) and ultra-filtered using 5 kDa molecular weight cut-off membrane. The extract was purified using C18 Solid-Phase Extraction. The antibacterial activity was determined using the Agar Well Diffusion method and broth-dilution method utilizing Staphylococcus aureus (ATCC 25923) and Escherichia coli (ATCC 25922). Thereafter, Sephadex G-25 gel filtration was further utilized in bio-guided isolation of the most active fractions prior to peptide identification using Orbitrap Fusion Lumos Tribrid Mass Spectrometry. The skin mucus extracted from African Catfish from all the three major lakes of Uganda exhibited antimicrobial activity on E. coli and S. aureus. Lake Albert's C. gariepinus demonstrated the best activity with the lowest MIC of 2.84 and 0.71 μg/ml on S. aureus and E. coli, respectively. Sephadex G-25 peak I mass spectrometry analysis (Data are available via ProteomeXchange with identifier PXD029193) alongside in silico analysis revealed seven short peptides (11-16 amino acid residues) of high antimicrobial scores (0.561-0.905 units). In addition, these peptides had a low molecular weight (1005.57-1622.05 Da) and had percentage hydrophobicity above 54%. Up to four of these AMPs demonstrated α-helix structure conformation, rendering them amphipathic. The findings of this study indicate that novel AMPs can be sourced from the skin mucus of C. gariepinus. Such AMPs are potential alternatives to the traditional antibiotics and can be of great application to food and pharmaceutical industries; however, further studies are still needed to establish their drug-likeness and safety profiles.
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Affiliation(s)
- Hedmon Okella
- Pharm-Biotechnology and Traditional Medicine Centre, Mbarara University of Science and Technology, Mbarara, Uganda
| | - Hilda Ikiriza
- Pharm-Biotechnology and Traditional Medicine Centre, Mbarara University of Science and Technology, Mbarara, Uganda
| | - Sylvester Ochwo
- Department of Biotechnical and Diagnostic Sciences, College of Veterinary Medicine Animal Resources and Biosecurity, Makerere University, Kampala, Uganda
| | - Clement Olusoji Ajayi
- Pharm-Biotechnology and Traditional Medicine Centre, Mbarara University of Science and Technology, Mbarara, Uganda
| | | | - Joseph Nkamwesiga
- Department of Biotechnical and Diagnostic Sciences, College of Veterinary Medicine Animal Resources and Biosecurity, Makerere University, Kampala, Uganda
- International Livestock Research Institute, Kampala, Uganda
| | - Bruhan Kaggwa
- Pharm-Biotechnology and Traditional Medicine Centre, Mbarara University of Science and Technology, Mbarara, Uganda
| | - Jacqueline Aber
- Pharm-Biotechnology and Traditional Medicine Centre, Mbarara University of Science and Technology, Mbarara, Uganda
- Department of Pharmacy, Faculty of Medicine, Gulu University, Gulu, Uganda
| | - Andrew Glory Mtewa
- Chemistry Section, Malawi Institute of Technology, Malawi University of Science and Technology, Limbe, Malawi
| | - Tindo Kevin Koffi
- Department of Food Science and Technology, Chungnam National University, Daejeon, South Korea
| | - Steven Odongo
- Department of Biotechnical and Diagnostic Sciences, College of Veterinary Medicine Animal Resources and Biosecurity, Makerere University, Kampala, Uganda
| | - Didier Vertommen
- de Duve Institute and MASSPROT Platform, UCLouvain, Brussels, Belgium
| | - Charles Drago Kato
- Department of Biotechnical and Diagnostic Sciences, College of Veterinary Medicine Animal Resources and Biosecurity, Makerere University, Kampala, Uganda
| | - Patrick Engeu Ogwang
- Pharm-Biotechnology and Traditional Medicine Centre, Mbarara University of Science and Technology, Mbarara, Uganda
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