The COVID-19 pandemic has posed a significant threat to human health due to the lack of drugs that can potentially act against SARS-CoV -2. Also, even after the emergency approval of WHO, the vaccines’ efficacy is still a question, and people are getting reinfections. Previous studies have demonstrated the efficacy of traditional medicinal plants against influenza and SARS coronavirus. The present article aims to review potential phytochemicals from Indian medicinal plants that may be used against SARS-CoV-2. Articles published in the English language between 1992 and 2021 were retrieved from Embase, PubMed, and Google scholar using relevant keywords, and the scientific literature on efficacies of Indian medicinal plants against SARS-CoV and influenza virus were analyzed. The initial search revealed 1304 studies, but, on subsequent screening, 115 eligible studies were reported. Twenty research articles investigating traditional medicinal plant extracts and metabolites against SARS-CoV and influenza A virus in in vitro and in vivo systems satisfied the search criteria. The studies reported that plant extracts and active compounds such as glycyrrhizin, 14-α-lipoyl andrographolide, and curcumin from medicinal plants such as Yashtimadhu ( Glycyrrhiza glabra), Bhunimba ( Andrographis paniculata), and Haridra ( Curcuma longa) are effective against the various phases of the virus life cycle, viz., virus-host cell attachment, viral replication, 3CL protease activity, neuraminidase activity, adsorption and penetration of the virus. As per ancient Indian literature, plants in Ayurveda possess Rasayana (revitalizing) and Jwara hara (antipyretic, anti-inflammatory) properties. This evidence may be used to conduct experimental and clinical trials to study the underlying mechanisms and efficacy of antiviral properties of Indian medicinal plants against SARS-CoV-2.
Nisha Amalaki (NA), an Indian herbal formulation consisting of two herbs, Curcuma longa and Emblica officinalis, has been commonly used to treat Type 2 diabetes mellitus (T2DM). However, the pharmacological mechanism of NA remains unknown. In this study, a network pharmacology-based approach was used to explore its underlying mechanism. NA phytochemicals were collected from PubChem, KNApSAcK, IMPPAT, and ChEBI databases, and their potential targets were investigated using similarity ensemble approach (Tanimoto coefficient ≥ 0.6). A protein-protein interaction network was constructed to study the interactions among the targets and clustered into separate modules using NetworkAnalyst 3.0. A significant module (P ≤ .01) was identified, and DAVID web tool was utilized for the enrichment analysis. A total of 201 phytochemicals and 262 targets of NA were selected. Forty-five nodes of the significant module were identified as potential targets of NA. The enrichment analysis exhibited 27 biological processes and 78 pathways (P ≤ .01). Out of 45, 18 nodes were associated with T2DM as probable targets of NA. The metabolite-target-pathway network revealed that anti-diabetic effect of NA is a synergy of multi-target and multi-pathway efforts via regulation of glucose, lipid metabolism, insulin resistance, β-cell survival and proliferation, inflammation, apoptosis, and cell cycle.
Objective: Trikatu is an Indian polyherbal formulation comprising three herbs, i.e., Zingiber officinale, Piper longum, and Piper nigrum. It is traditionally used to treat metabolic disorders such as type 2 diabetes mellitus (T2DM), dyslipidemia, and obesity. However, its mechanism of action remains unknown. This study aims to explore the underlying therapeutic mechanism of Trikatu in T2DM and lipid metabolic disorders using network pharmacology (NP). Methods: Trikatu phytochemicals were retrieved from various databases and screened on the basis of druglikeness and oral bioavailability (>30%) score. Putative targets of the bioactive phytochemicals were identified using TargetNet, Similarity Ensemble Approach, and Swiss Target Prediction databases. Protein-protein interaction (PPI) network of overlapping targets of phytochemicals and metabolic disorders was constructed using NetworkAnalyst 3.0. The Bioactive Phytochemical-Target-Pathway (BP-T-P) network was constructed using cytoscape v3.8.2, and the key targets of Trikatu were analyzed by Gene Ontology (GO), and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment. Results: Twenty bioactive phytochemicals and 102 targets of Trikatu were identified. PPI network and enrichment analysis showed that 51 targets of Trikatu phytochemicals such as RXRA, STAT3 and ESR1, GSK3B, TNF, NOS2/3 regulate pathways like insulin resistance, steroid hormone biosynthesis, regulation of lipolysis in adipocytes, adipocytokine & cGMP-PKG signalling pathways, arachidonic acid metabolism and bile secretion. The results were validated by molecular docking which showed that RXRA, STAT3 and ESR1 strongly interact with their ligands alpha gurjunene, beta-sitosterol, piperlongumine, genistein and E-beta carotene, respectively. Conclusion: Hence, the multiple target and multiple pathway approach of Trikatu can be further explored in pharmacokinetics / Pharmacodynamics studies.
Introduction: Blount’s disease is defined as a growth disorder of medial aspect of proximal tibia physis with abrupt medial angulation of proximal tibia distal to epiphysis, leading to varus angulation of proximal tibia and medial rotation of tibia. Epidemiology is not well established and very rarely cases have been reported from Indian subcontinent. Presentation of case: A 3-years-old female child presented with deformity in both the legs and altered walking pattern for the past one year. On examination there was 15 degrees of varus deformity in both the knees. There was 25 degrees of internal tibial torsion bilaterally. The child was managed by surgical intervention. Oblique proximal tibial osteotomy was done. Fixation was done with a single cancellous screw on both sides and immobilisation was done in above knee plaster cast. Child recovered well with correction of deformity and could walk with normal gait pattern. Discussion: The cause of Blount’s disease is still not well established. Treatment depends upon age at presentation, severity of varus deformity as determined by Langenskiold staging, and progression of the disease. Early intervention is required to avoid progression of the disease and permanent deformity. Conclusion: Blount’s disease is a very rarely encountered condition in Indian subcontinent but has a characteristic presentation. It should be included in differential diagnosis in cases presenting with pathological bowing of legs. Radiological findings and normal blood biochemistry can guide us towards the diagnosis of Blount’s disease. Keywords: Blount’s disease; Indian subcontinent; bilateral Blount’s disease, infantile Blount’s disease
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