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Aguirre PAU, Martins KM, López CDD, Sánchez FO, Castaño AT, Velásquez CMR, Vidal AP. Effect of nanoformulation Azadirachta indica on some factors associated with the vectorial capacity and competence of Anopheles aquasalis experimentally infected with Plasmodium vivax. Acta Trop 2024; 255:107223. [PMID: 38642694 DOI: 10.1016/j.actatropica.2024.107223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Revised: 04/17/2024] [Accepted: 04/18/2024] [Indexed: 04/22/2024]
Abstract
Malaria remains a highly prevalent infectious disease worldwide, particularly in tropical and subtropical regions. Effectively controlling of mosquitoes transmitting of Plasmodium spp. is crucial in to control this disease. A promising strategy involves utilizing plant-derived products, such as the Neem tree (Azadirachta indica), known for its secondary metabolites with biological activity against various insect groups of agricultural and public health importance. This study investigated the effects of a nanoformulation prototype Neem on factors linked to the vector competence of Anopheles aquasalis, a malaria vector in Latin America. Different concentrations of the nanoformulation were supplied through sugar solution and blood feeding, assessing impacts on longevity, fecundity, fertility, and transgenerational survival from larvae to adults. Additionally, the effects of the Neem nanoformulation and NeemAZAL® formulation on the sporogonic cycle of P. vivax were evaluated. Overall, significant impacts were observed at 100 ppm and 1,000 ppm concentrations on adult survival patterns and on survival of the F1 generation. A trend of reduced oviposition and hatching rates was also noted in nanoformulation-consuming groups, with fertility and fecundity declining proportionally to the concentration. Additionally, a significant decrease in the infection rate and intensity of P. vivax was observed in the 1,000 ppm group, with a mean of 3 oocysts per female compared to the control's 27 oocysts per female. In the commercial formulation, the highest tested concentration of 3 ppm yielded 5.36 oocysts per female. Concerning sporozoite numbers, there was a reduction of 52 % and 87 % at the highest concentrations compared to the control group. In conclusion, these findings suggest that the A. indica nanoformulation is a potential as a tool for malaria control through reduction in the vector longevity and reproductive capacity, possibly leading to decreased vector population densities. Moreover, the nanoformulation interfered with the sporogonic development of P. vivax. However, further basic research on Neem formulations, their effects, and mechanisms of action is imperative to gain a more specific perspective for safe field implementation.
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Affiliation(s)
| | - Keillen Monick Martins
- Laboratório de Doenças Transmissíveis na Amazônia, Instituto Leônidas e Maria Deane, FIOCRUZ Amazônia, Brazil
| | | | | | | | | | - Adriana Pabón Vidal
- Grupo Malaria, Facultad de Medicina, Universidad de Antioquia, Medellín, Colombia
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Ngum NH, Masakebenagha NE, Mahamat O. Antimalarial and Immunomodulatory Activities of Tithonia diversifolia (Asteraceae) Leave Flafonoids-Rich Extract Used in Cameroonian Traditional Medecine. SCIENTIFICA 2024; 2024:8645178. [PMID: 38962528 PMCID: PMC11221963 DOI: 10.1155/2024/8645178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/22/2024] [Revised: 05/26/2024] [Accepted: 06/13/2024] [Indexed: 07/05/2024]
Abstract
Background Phytochemicals are considered the reliable source for the treatment of infection including malaria. Especially, phenols are known as potentially toxic to the growth and development of pathogens, among which flavonoids are the most extensively studied and play more intensive roles in ethnopharmacology. The immunological effect and role of T. diversifolia flavonoids-rich extract in treatment of malaria have therefore been examined in this study. Methods In vitro test against Plasmodium falciparum and 4-day suppressive and Rane's tests against Plasmodium berghei in mice were used to evaluate the antimalarial activities. TNF-α and INF-γ levels, phagocytic tests, and production of oxygen and nitrogen radical were assessed to appreciate the immunomodulatory activity. One-way analysis of variance followed by post hoc Student's t tests was used for data analysis. Results T. diversifolia flavonoids-rich extract at the concentrations ranging from 0.0004 mg/ml significantly (p < 0.05) inhibited in a concentration-dependent manner the growth of trophozoite up to 100% inhibition with 0.025 mg/ml at 24 and 48 hrs. Moreover, T. diversifolia flavonoids-rich extract reduced the level of parasitemia and improved in a dose-dependent manner the survival time of infected mice significantly (p < 0.05) compared to their control in 4-day suppressive test as well as in Rane's test. Additionally, T. diversifolia flavonoids-rich extract increased the TNF-α and INF-γ levels in rats infected by P. berghei. Furthermore, the flavonoid-rich extract enhanced weight of spleen in the rats, the metabolic and phagocytic activities of the peritoneal cells, and the concentration of nitric oxide and oxygen radicals in methylprednisolone-immunocompromised rats compared to the control (p < 0.05). Conclusion The study has revealed that T. diversifolia flavonoids-rich extract through its antiplasmodial and phagocytic activities is a promising treatment of malaria.
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Affiliation(s)
- Ntonifor Helen Ngum
- Department of ZoologyFaculty of SciencesUniversity of Bamenda, North West, Bamenda, Cameroon
| | - Ndoah Ellen Masakebenagha
- Department of Microbiology and ParasitologyFaculty of SciencesUniversity of Bamenda, North West, Bamenda, Cameroon
| | - Oumar Mahamat
- Department of ZoologyFaculty of SciencesUniversity of Bamenda, North West, Bamenda, Cameroon
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Devi G, Gorki V, Walter NS, Sivangula S, Sobhia ME, Jachak S, Puri R, Kaur S. Exploring the efficacy of ethnomedicinal plants of Himalayan region against the malaria parasite. JOURNAL OF ETHNOPHARMACOLOGY 2024; 321:117394. [PMID: 37967777 DOI: 10.1016/j.jep.2023.117394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 10/28/2023] [Accepted: 11/04/2023] [Indexed: 11/17/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Plasmodium falciparum multi-drug resistant (MDR) strains are a great challenge to global health care. This predicament implies the urgent need to discover novel antimalarial drugs candidate from alternative natural sources. The Himalaya constitute a rich repository of medicinal plants which have been used traditionally in the folklore medicine since ages and having no scientific evidence for their activity. Crambe kotschyana Boiss. and Eremurus himalaicus Baker are used for their antipyretic and hepatoprotective properties in Kinnaur district of Himachal Pradesh, India. AIM OF THE STUDY This study would investigate the antiplasmodial efficacy of C. kotschyana and E. himalaicus extracts, their fractions and active components using in vitro, in vivo and in silico approaches to provide a scientific insight into their activity. METHODS The methanol extracts of C. kotschyana (CKME) and E. himalaicus (EHME) were prepared by maceration followed by fractionation using ethyl acetate. The isolation of flavonoid glycosides isorhamnetin-3, 7-di-O-glucoside from C. kotschyana and luteolin-6-C-glucoside (isoorientin) from E. himalaicus was carried out by antiplasmodial activity-guided isolation. In vitro antimalarial activity was assessed by WHO method while in vitro cytotoxicity was ascertained employing the MTT assay. Molecular docking and molecular dynamics simulation were performed using the Glide module of Schrödinger Software and Gromacs-2022 software package respectively. In vivo curative activity was assessed by Ryley and Peters method. RESULTS The methanol extracts of both the plants illustrated the best antiplasmodial activity followed by the ethyl acetate fractions. Iso-orientin (IC50 6.49 μg/ml) and Isorhamnetin-3,7-di-O-glucoside (IC50 9.22 μg/ml) illustrated considerable in vitro activity even against P. falciparum resistant strain. Extracts/fractions as well as the isolated compounds were found to be non-toxic with CC50 > 640 μg/ml. Molecular docking studies were performed with these 2 O-glucosides against four malaria targets to understand the binding pose of these molecules and the results suggested that these molecules have selectivity for lactate dehydrogenase enzyme. CKME and EHME exhibited curative activity in vivo along with increase in Mean Survival Time of mice. CONCLUSION The research delineated the scientific evidence that both the therapeutic herbs possessed antimalarial activity and notably, bioactive compounds responsible to exhibit the antimalarial activity have been isolated, identified and characterized. Further studies are underway to assess the antiplasmodial efficacy of isolated compounds alone and in combination with standard antimalarials.
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Affiliation(s)
- Geeta Devi
- Ethnobotany and Medicinal Plant Laboratory, Department of Botany, Panjab University, Chandigarh, 160014, India.
| | - Varun Gorki
- Parasitology Laboratory, Department of Zoology, Panjab University, Chandigarh, 160014, India
| | - Neha Sylvia Walter
- Parasitology Laboratory, Department of Zoology, Panjab University, Chandigarh, 160014, India
| | - Srikanth Sivangula
- Department of Pharmacoinformatics, National Institute of Pharmaceutical Education and Research, Sector 67, S. A. S Nagar, Punjab, India
| | - M Elizabeth Sobhia
- Department of Pharmacoinformatics, National Institute of Pharmaceutical Education and Research, Sector 67, S. A. S Nagar, Punjab, India
| | - Sanjay Jachak
- Department of Natural Products, National Institute of Pharmaceutical Education and Research, S.A.S. Nagar, Punjab, 160062, India
| | - Richa Puri
- Ethnobotany and Medicinal Plant Laboratory, Department of Botany, Panjab University, Chandigarh, 160014, India
| | - Sukhbir Kaur
- Parasitology Laboratory, Department of Zoology, Panjab University, Chandigarh, 160014, India.
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Hemdan BA, Mostafa A, Elbatanony MM, El-Feky AM, Paunova-Krasteva T, Stoitsova S, El-Liethy MA, El-Taweel GE, Abu Mraheil M. Bioactive Azadirachta indica and Melia azedarach leaves extracts with anti-SARS-CoV-2 and antibacterial activities. PLoS One 2023; 18:e0282729. [PMID: 36888689 PMCID: PMC9994683 DOI: 10.1371/journal.pone.0282729] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Accepted: 02/21/2023] [Indexed: 03/09/2023] Open
Abstract
The leaves of Azadirachta indica L. and Melia azedarach L., belonging to Meliaceae family, have been shown to have medicinal benefits and are extensively employed in traditional folk medicine. Herein, HPLC analysis of the ethyl acetate fraction of the total methanolic extract emphasized the enrichment of both A. indica L., and M. azedarach L. leaves extracts with phenolic and flavonoids composites, respectively. Besides, 4 limonoids and 2 flavonoids were isolated using column chromatography. By assessing the in vitro antiviral activities of both total leaves extracts against Severe Acute Respiratory Syndrome Corona virus 2 (SARS-CoV-2), it was found that A. indica L. and M. azedarach L. have robust anti-SARS-CoV-2 activities at low half-maximal inhibitory concentrations (IC50) of 8.451 and 6.922 μg/mL, respectively. Due to the high safety of A. indica L. and M. azedarach L. extracts with half-maximal cytotoxic concentrations (CC50) of 446.2 and 351.4 μg/ml, respectively, both displayed extraordinary selectivity indices (SI>50). A. indica L. and M. azedarach L. leaves extracts could induce antibacterial activities against both Gram-negative and positive bacterial strains. The minimal inhibitory concentrations of A. indica L. and M. azedarach L. leaves extracts varied from 25 to 100 mg/mL within 30 min contact time towards the tested bacteria. Our findings confirm the broad-spectrum medicinal value of A. indica L. and M. azedarach L. leaves extracts. Finally, additional in vivo investigations are highly recommended to confirm the anti-COVID-19 and antimicrobial activities of both plant extracts.
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Affiliation(s)
- Bahaa A. Hemdan
- Water Pollution Research Department, Environmental Microbiology Laboratory, National Research Centre, Dokki, Cairo, Egypt
| | - Ahmed Mostafa
- Center of Scientific Excellence for Influenza Viruses, National Research Centre, Dokki, Cairo, Egypt
- * E-mail: (AM); (MAM)
| | | | - Amal M. El-Feky
- Pharmacognosy Department, National Research Centre, Dokki, Cairo, Egypt
| | | | - Stoyanka Stoitsova
- The Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Mohamed Azab El-Liethy
- Water Pollution Research Department, Environmental Microbiology Laboratory, National Research Centre, Dokki, Cairo, Egypt
| | - Gamila E. El-Taweel
- Water Pollution Research Department, Environmental Microbiology Laboratory, National Research Centre, Dokki, Cairo, Egypt
| | - Mobarak Abu Mraheil
- Institute of Medical Microbiology, German Center for Infection Research (DZIF), Partner Site Giessen-Marburg-Langen Site, Justus-Liebig University Giessen, Giessen, Germany
- * E-mail: (AM); (MAM)
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Abdel-Gaber R, Hawsah MA, Al-Otaibi T, Alojayri G, Al-Shaebi EM, Mohammed OB, Elkhadragy MF, Al-Quraishy S, Dkhil MA. Biosynthesized selenium nanoparticles to rescue coccidiosis-mediated oxidative stress, apoptosis and inflammation in the jejunum of mice. Front Immunol 2023; 14:1139899. [PMID: 36875142 PMCID: PMC9982015 DOI: 10.3389/fimmu.2023.1139899] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Accepted: 02/08/2023] [Indexed: 02/19/2023] Open
Abstract
One of the most crucial approaches for treating human diseases, particularly parasite infections, is nanomedicine. One of the most significant protozoan diseases that impact farm and domestic animals is coccidiosis. While, amprolium is one of the traditional anticoccidial medication, the advent of drug-resistant strains of Eimeria necessitates the development of novel treatments. The goal of the current investigation was to determine whether biosynthesized selenium nanoparticles (Bio-SeNPs) using Azadirachta indica leaves extract might treat mice with Eimeria papillata infection in the jejunal tissue. Five groups of seven mice each were used, as follows: Group 1: Non-infected-non-treated (negative control). Group 2: Non-infected treated group with Bio-SeNPs (0.5 mg/kg of body weight). Groups 3-5 were orally inoculated with 1×103 sporulated oocysts of E. papillata. Group 3: Infected-non-treated (positive control). Group 4: Infected and treated group with Bio-SeNPs (0.5 mg/kg). Group 5: Infected and treated group with the Amprolium. Groups 4 and 5 daily received oral administration (for 5 days) of Bio-SeNPs and anticoccidial medication, respectively, after infection. Bio-SeNPs caused a considerable reduction in oocyst output in mice feces (97.21%). This was also accompanied by a significant reduction in the number of developmental parasitic stages in the jejunal tissues. Glutathione reduced (GSH), glutathione peroxidase (GPx), and superoxide dismutase (SOD) levels were dramatically reduced by the Eimeria parasite, whereas, nitric oxide (NO) and malonaldehyde (MDA) levels were markedly elevated. The amount of goblet cells and MUC2 gene expression were used as apoptotic indicators, and both were considerably downregulated by infection. However, infection markedly increased the expression of inflammatory cytokines (IL-6 and TNF-α) and the apoptotic genes (Caspase-3 and BCL2). Bio-SeNPs were administrated to mice to drastically lower body weight, oxidative stress, and inflammatory and apoptotic indicators in the jejunal tissue. Our research thus showed the involvement of Bio-SeNPs in protecting mice with E. papillata infections against jejunal damage.
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Affiliation(s)
- Rewaida Abdel-Gaber
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Maysar Abu Hawsah
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Tahani Al-Otaibi
- Department of Science and Technology, Al-Nairiyah University College, University of Hafr Al-Batin, Hafr Al-Batin, Saudi Arabia
| | - Ghada Alojayri
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Esam M Al-Shaebi
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Osama B Mohammed
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Manal F Elkhadragy
- Department of Biology, College of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Saleh Al-Quraishy
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Mohamed A Dkhil
- Department of Zoology and Entomology, Faculty of Science, Helwan University, Cairo, Egypt.,Applied Science Research Center, Applied Science Private University, Amman, Jordan
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Wylie MR, Merrell DS. The Antimicrobial Potential of the Neem Tree Azadirachta indica. Front Pharmacol 2022; 13:891535. [PMID: 35712721 PMCID: PMC9195866 DOI: 10.3389/fphar.2022.891535] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 05/09/2022] [Indexed: 12/24/2022] Open
Abstract
Azadirachta indica (A. Juss), also known as the neem tree, has been used for millennia as a traditional remedy for a multitude of human ailments. Also recognized around the world as a broad-spectrum pesticide and fertilizer, neem has applications in agriculture and beyond. Currently, the extensive antimicrobial activities of A. indica are being explored through research in the fields of dentistry, food safety, bacteriology, mycology, virology, and parasitology. Herein, some of the most recent studies that demonstrate the potential of neem as a previously untapped source of novel therapeutics are summarized as they relate to the aforementioned research topics. Additionally, the capacity of neem extracts and compounds to act against drug-resistant and biofilm-forming organisms, both of which represent large groups of pathogens for which there are limited treatment options, are highlighted. Updated information on the phytochemistry and safety of neem-derived products are discussed as well. Although there is a growing body of exciting evidence that supports the use of A. indica as an antimicrobial, additional studies are clearly needed to determine the specific mechanisms of action, clinical efficacy, and in vivo safety of neem as a treatment for human pathogens of interest. Moreover, the various ongoing studies and the diverse properties of neem discussed herein may serve as a guide for the discovery of new antimicrobials that may exist in other herbal panaceas across the globe.
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Affiliation(s)
- Marina R Wylie
- Department of Microbiology and Immunology, Uniformed Services University of the Health Sciences, Bethesda, MD, United States
| | - D Scott Merrell
- Department of Microbiology and Immunology, Uniformed Services University of the Health Sciences, Bethesda, MD, United States
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Sarkar L, Oko L, Gupta S, Bubak AN, Das B, Gupta P, Safiriyu AA, Singhal C, Neogi U, Bloom D, Banerjee A, Mahalingam R, Cohrs RJ, Koval M, Shindler KS, Pal D, Nagel M, Sarma JD. Azadirachta indica A. Juss bark extract and its Nimbin isomers restrict β-coronaviral infection and replication. Virology 2022; 569:13-28. [PMID: 35219218 PMCID: PMC8844965 DOI: 10.1016/j.virol.2022.01.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2021] [Revised: 01/10/2022] [Accepted: 01/12/2022] [Indexed: 01/08/2023]
Abstract
Emerging mutations in the SARS-CoV-2 genome pose a challenge for vaccine development and antiviral therapy. The antiviral efficacy of Azadirachta indica bark extract (NBE) was assessed against SARS-CoV-2 and m-CoV-RSA59 infection. Effects of in vivo intranasal or oral NBE administration on viral load, inflammatory response, and histopathological changes were assessed in m-CoV-RSA59-infection. NBE administered inhibits SARS-CoV-2 and m-CoV-RSA59 infection and replication in vitro, reducing Envelope and Nucleocapsid gene expression. NBE ameliorates neuroinflammation and hepatitis in vivo by restricting viral replication and spread. Isolated fractions of NBE enriched in Nimbin isomers shows potent inhibition of m-CoV-RSA59 infection in vitro. In silico studies revealed that NBE could target Spike and RdRp of m-CoV and SARS-CoV-2 with high affinity. NBE has a triterpenoids origin that may allow them to competitively target panoply of viral proteins to inhibit mouse and different strains of human coronavirus infections, suggesting its potential as an antiviral against pan-β-Coronaviruses.
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Affiliation(s)
- Lucky Sarkar
- Department of Biological Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, Nadia, India
| | - Lauren Oko
- Department of Neurology, University of Colorado School of Medicine, Aurora, CO, 80045, USA
| | - Soham Gupta
- The Systems Virology Lab, Division of Clinical Microbiology, Department of Laboratory Medicine, Karolinska Institute, Stockholm, Sweden
| | - Andrew N Bubak
- Department of Neurology, University of Colorado School of Medicine, Aurora, CO, 80045, USA
| | - Bishnu Das
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, Nadia, India
| | - Parna Gupta
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, Nadia, India
| | - Abass Alao Safiriyu
- Department of Biological Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, Nadia, India
| | - Chirag Singhal
- Department of Biological Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, Nadia, India
| | - Ujjwal Neogi
- The Systems Virology Lab, Division of Clinical Microbiology, Department of Laboratory Medicine, Karolinska Institute, Stockholm, Sweden
| | - David Bloom
- Department of Molecular Genetics and Microbiology, University of Florida College of Medicine, Gainesville, FL, USA
| | - Arup Banerjee
- Laboratory of Virology, Regional Centre for Biotechnology, and Translational Health Science & Technology Institute Faridabad, Haryana, India
| | - Ravi Mahalingam
- Department of Neurology, University of Colorado School of Medicine, Aurora, CO, 80045, USA
| | - Randall J Cohrs
- Department of Neurology, University of Colorado School of Medicine, Aurora, CO, 80045, USA
| | - Michael Koval
- Division of Pulmonary, Allergy, Critical Care and Sleep Medicine, Department of Medicine, Emory University School of Medicine, Atlanta, GA, 30322, USA
| | - Kenneth S Shindler
- Departments of Ophthalmology and Neurology, University of Pennsylvania, Scheie Eye Institute, Philadelphia, PA, USA
| | - Debnath Pal
- Department of Computational and Data Sciences, Indian Institute of Science, Bangalore Karnataka, 560012, India
| | - Maria Nagel
- Department of Neurology, University of Colorado School of Medicine, Aurora, CO, 80045, USA
| | - Jayasri Das Sarma
- Department of Biological Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, Nadia, India; Department of Ophthalmology, University of Pennsylvania, Philadelphia, PA, USA.
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Okeke TC, Umeyor CE, Nzekwe IT, Umeyor IC, Nebolisa NM, Uronnachi EM, Nwakile CD, Ekweogu CA, Aziakpono OM, Attama AA. Formulation Development of Azadirachta indica Extract as Nanosuppository to Improve its Intrarectal Delivery for the Treatment of Malaria. RECENT ADVANCES IN DRUG DELIVERY AND FORMULATION 2022; 16:217-233. [PMID: 35473532 DOI: 10.2174/2667387816666220426134156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 03/05/2022] [Accepted: 03/08/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND Previous folkloric and experimental reports have demonstrated the antimalarial efficacy of Azadirachta indica (AZA) extracts. However, one of the major challenges facing its application for the clinical treatment of malaria is the design of an acceptable dosage form. OBJECTIVE Consequently, we developed AZA extract-loaded nanostructured lipid carriers (NLC) for the formulation of suppositories, denoted as nanosuppositories, for intrarectal treatment of malaria. METHODS Various batches of NLC-bearing AZA extract were formulated based on lipid matrices prepared using graded concentrations of Softisan®154 and Tetracarpidium conophorum or walnut oil. NLC was investigated by size and differential scanning calorimetry (DSC). Suppository bearing AZA extract-loaded NLC was developed using cocoa butter or theobroma oil, and their physicochemical properties were profiled. In vitro drug release and in vivo antimalarial activity (using Plasmodium berghei-infected mice) were investigated. RESULTS NLCs exhibited sizes in nanometers ranging from 329.5 - 806.0 nm, and were amorphized as shown by DSC thermograms. Nanosuppositories were torpedo- or bullet- shaped, weighing 138 - 368 mg, softened/liquefied between 4.10 - 6.92 min, and had controlled release behaviour. In vivo antimalarial study revealed excellent antimalarial efficacy of the nanosuppositories comparable with a commercial brand (Plasmotrim®) and better than the placebo (unloaded nanosuppository), and without toxic alterations of hepatic and renal biochemical factors. CONCLUSION Thus, AZA extract could be rationally loaded in nanostructured lipid carriers (NLC) for further development as nanosuppository and deployed as an effective alternative with optimum convenience for intrarectal treatment of malaria.
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Affiliation(s)
- Tochukwu Chimdindu Okeke
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmaceutical Sciences, Nanomedicines and Drug Delivery Research Group, Nnamdi Azikiwe University, Awka 422001, Anambra State, Nigeria
| | - Chukwuebuka Emmanuel Umeyor
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmaceutical Sciences, Nanomedicines and Drug Delivery Research Group, Nnamdi Azikiwe University, Awka 422001, Anambra State, Nigeria
| | - Ifeanyi Thaddeus Nzekwe
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmaceutical Sciences, Nanomedicines and Drug Delivery Research Group, Nnamdi Azikiwe University, Awka 422001, Anambra State, Nigeria
| | - Immaculeta Chikamnele Umeyor
- Department of Pharmacognosy and Traditional Medicine, Faculty of Pharmaceutical Sciences, Nnamdi Azikiwe University, Awka 422001, Anambra State, Nigeria
| | - Ngozi Maryann Nebolisa
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmaceutical Sciences, Nanomedicines and Drug Delivery Research Group, Nnamdi Azikiwe University, Awka 422001, Anambra State, Nigeria
| | - Emmanuel Maduabuchi Uronnachi
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmaceutical Sciences, Nanomedicines and Drug Delivery Research Group, Nnamdi Azikiwe University, Awka 422001, Anambra State, Nigeria
| | - Calistus Dozie Nwakile
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmaceutical Sciences, Nanomedicines and Drug Delivery Research Group, Nnamdi Azikiwe University, Awka 422001, Anambra State, Nigeria
| | - Chizoba Austinline Ekweogu
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmaceutical Sciences, Nanomedicines and Drug Delivery Research Group, Nnamdi Azikiwe University, Awka 422001, Anambra State, Nigeria
| | - Omoirri Moses Aziakpono
- Department of Pharmacology and Toxicology, Faculty of Pharmaceutical Sciences, Federal University of Oye-Ekiti, Ekiti State, Nigeria
| | - Anthony Amaechi Attama
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Drug Delivery and Nanomedicine Research Group, University of Nigeria, Nsukka 422001, Enugu State, Nigeria
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Dkhil MA, Al-Quraishy S, Al-Shaebi EM, Abdel-Gaber R, Thagfan FA, Qasem MA. Medicinal plants as a fight against murine blood-stage malaria. Saudi J Biol Sci 2021; 28:1723-1738. [PMID: 33732056 PMCID: PMC7938113 DOI: 10.1016/j.sjbs.2020.12.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 12/06/2020] [Accepted: 12/08/2020] [Indexed: 01/18/2023] Open
Abstract
OBJECTIVE Malaria is an infectious parasitic disease affecting most of countries worldwide. Due to antimalarial drug resistance, researchers are seeking to find another safe efficient source for treatment of malaria. Since many years ago, medicinal plants were widely used for the treatment of several diseases. In general, most application is done first on experimental animals then human. In this article, medicinal plants as antimalarial agents in experimental animals were reviewed from January 2000 until November 2020. MATERIALS AND METHODS In this systematic review published articles were reviewed using the electronic databases NCBI, ISI Web of knowledge, ScienceDirect and Saudi digital library to check articles and theses for M.Sc/Ph.D. The name of the medicinal plant with its taxon ID and family, the used Plasmodium species, plant part used and its extract type and the country of harvest were described. RESULTS AND CONCLUSION The reviewed plants belonged to 83 families. Medicinal plants of families Asteraceae, Meliaceae Fabaceae and Lamiaceae are the most abundant for use in laboratory animal antimalarial studies. According to region, published articles from 33 different countries were reviewed. Most of malaria published articles are from Africa especially Nigeria and Ethiopia. Leaves were the most common plant part used for the experimental malaria research. In many regions, research using medicinal plants to eliminate parasites and as a defensive tool is popular.
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Affiliation(s)
- Mohamed A. Dkhil
- Department of Zoology, College of Science, King Saud University, Saudi Arabia
- Department of Zoology and Entomology, Faculty of Science, Helwan University, Egypt
| | - Saleh Al-Quraishy
- Department of Zoology, College of Science, King Saud University, Saudi Arabia
| | - Esam M. Al-Shaebi
- Department of Zoology, College of Science, King Saud University, Saudi Arabia
| | - Rewaida Abdel-Gaber
- Department of Zoology, College of Science, King Saud University, Saudi Arabia
- Zoology Department, Faculty of Science, Cairo University, Cairo, Egypt
| | - Felwa Abdullah Thagfan
- Department of Biology, College of Science, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Mahmood A.A. Qasem
- Department of Zoology, College of Science, King Saud University, Saudi Arabia
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