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Baishya S, Das Talukdar A, Dutta Choudhury M. Secondary resistance gene ccdB and repA2 facilitates carbapenem resistance in Escherichia coli carrying New Delhi Metallo-beta-lactamase. Int J Infect Dis 2020. [DOI: 10.1016/j.ijid.2020.09.129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Kumar A, Dutta Choudhury M, Ghosh P, Palit P. Discoidin domain receptor 2: An emerging pharmacological drug target for prospective therapy against osteoarthritis. Pharmacol Rep 2019; 71:399-408. [DOI: 10.1016/j.pharep.2019.01.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Revised: 11/27/2018] [Accepted: 01/14/2019] [Indexed: 11/30/2022]
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Kumar A, Palit P, Choudhury MD. Osteoarthritis: Prognosis and Emerging Therapeutic Approach for Disease Management. Curr Pharm Biotechnol 2019. [DOI: 10.2174/1389201020666190227225349] [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: 11/22/2022]
Affiliation(s)
- Amresh Kumar
- Assam University Biotech-Hub, Assam University, Silchar, Assam-788011, India
| | - Partha Palit
- Department of Pharmaceutical Sciences, Assam University, Silchar, Assam-788011, India
| | - M. Dutta Choudhury
- Assam University Biotech-Hub, Assam University, Silchar, Assam-788011, India
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Das N, Bhattacharya A, Kumar Mandal S, Debnath U, Dinda B, Mandal SC, Kumar Sinhamahapatra P, Kumar A, Dutta Choudhury M, Maiti S, Palit P. Ichnocarpus frutescens (L.) R. Br. root derived phyto-steroids defends inflammation and algesia by pulling down the pro-inflammatory and nociceptive pain mediators: An in-vitro and in-vivo appraisal. Steroids 2018; 139:18-27. [PMID: 30217788 DOI: 10.1016/j.steroids.2018.09.005] [Citation(s) in RCA: 6] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 08/19/2018] [Accepted: 09/08/2018] [Indexed: 10/28/2022]
Abstract
Ichnocarpus frutescens, a climber plant, is distributed all over India. As its different parts are used as anti-inflammatory agent, so we re-investigated the roots to isolate compounds and evaluate its biological efficacy. Also, in-silico molecular docking was carried out to elucidate the structure activity relationship (SAR) of isolated compounds toward identifies the drug target enzyme with validation, which was further supported by anti-inflammatory in-vitro and in-vivo experimental models. The compounds have been undertaken mainly to investigate the anti-inflammatory and analgesic efficacy along with molecular docking investigation followed by anti-proteinase, anti-denaturation and cyclooxygenase (COX) inhibition studies. Inflammatory cytokines like TNF-α and IL-6 were assayed from lipopolysaccharides (LPS) and Concavallin (CON A) stimulated human PBMC derived macrophages by Enyme linked immune sorbent assay (ELISA) method. The purity index of the lead compound was determined by HPLC. The compounds were illustrated as 2-hydroxy tricosanoic acid (1), stigmasterol glucoside (2), stigmasterol (3), β-sitosterol (4) and β-sitosterol glucoside (5). The test molecules showed significant anti-denaturation, anti-proteinase and analgesic effect validated with docking study. Compounds exhibited anti-inflammatory and pain killing action due to dexamethasone like phytosterol property. Promising anti-denaturation and anti-proteinase activity offered by the compound 5, may hold its promise to fight against arthritis by rejuvenating the osteoblast cells and destroying the bone-resorpting complex of hydrated protein, bone minerals by secreting the acid and an enzyme collagenase along with pain management. The lead bioactive compound i.e. β-sitosterol glucoside (compound 5) demonstrated considerable anti-inflammatory activity showing more than 90% protection against the inflammatory cytokines at 50 µM dose. The anti-denaturation and COX-2 inhibition shown by the compound 5 was also noteworthy with the significant IC50 (ranging from 0.25 to 2.56 µM) that also supporting its future promise for developing as anti-inflammatory agent. Since the most bio-active compound (5) elicit promising acute anti-inflammatory action and peripheral anti-nociceptive pain killing action with a significant ED50 dose of 3.95 & 2.84 mg/kg i.p. respectively in the in-vivo animal model. It could suggest its potentiality as a good in-vivo bio available agent to be an emerging anti-inflammatory drug regimen scaffold in the future. It also establishes significant in-vitro and in-vivo result co-relation. Therefore, the compound 5 could be believed as a potent lead for designing anti-inflammatory, anti-arthritic drug or pain killer without showing any untoward effect.
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Affiliation(s)
- Niranjan Das
- Department of Chemistry, Netaji Subhas Mahavidyalaya, Udaipur-799 114, Gomati Tripura, India.
| | - Abhijit Bhattacharya
- Department of Chemistry, Netaji Subhas Mahavidyalaya, Udaipur-799 114, Gomati Tripura, India
| | - Sudip Kumar Mandal
- B. C. Roy College of Pharmacy & Allied Health Sciences, Durgapur 713206, India
| | - Utsab Debnath
- Division of Molecular Medicine, Bose Institute, Kolkata 700054, India
| | - Biswanath Dinda
- Department of Chemistry, Tripura University, Suryamaninagar, Tripura 799022, India
| | - Subhash C Mandal
- Pharmacognosy and Phytotherapy Research Laboratory, Division of Pharmacognosy, Department of Pharmaceutical Technology, Jadavpur University, Kolkata 700032, India
| | - Prabir Kumar Sinhamahapatra
- Division of Pharmaceutical Chemistry, Institute of Pharmacy and Technology, Salipur, Cuttack, Odisha 754202, India
| | - Amresh Kumar
- Department of Life Science and Bioinformatics, Biotech Hub, Assam University, Silchar, Assam 788011, India
| | - M Dutta Choudhury
- Department of Life Science and Bioinformatics, Biotech Hub, Assam University, Silchar, Assam 788011, India
| | - Sabyasachi Maiti
- Department of Pharmacy, Indira Gandhi National Tribal University, Amarkantak-484887, Madhya Pradesh, India
| | - Partha Palit
- Dept. of Pharmaceutical Science, Drug Discovery Research Laboratory, Division of Pharmacognosy, Assam University (A Central University), Silchar-788011, Assam, India.
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Choudhury D, Talukdar AD, Maurya AP, Choudhury MD, Dhar Chanda D, Chakravarty A, Bhattacharjee A. Contribution of efflux pumps in fluroquinolone resistance in multi-drug resistant nosocomial isolates of Pseudomanas aeruginosa from a tertiary referral hospital in north east India. Indian J Med Microbiol 2016; 33:84-6. [PMID: 25560007 DOI: 10.4103/0255-0857.148388] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND Pseudomonas aeruginosa is one of the leading opportunistic pathogen and its ability to acquire resistance against series of antimicrobial agents confine treatment option for nosocomial infections. Increasing resistance to fluroquinolone (FQ) agents has further worsened the scenario. The major mechanism of resistance to FQs includes mutation in FQs target genes in bacteria (DNA gyrase and/or topoisomerases) and overexpression of antibiotic efflux pumps. OBJECTIVE We have investigated the role of efflux pump mediated FQ resistance in nosocomial isolates of P. aeruginosa from a tertiary referral hospital in north eastern part of India. MATERIALS AND METHODS A total of 234 non-duplicate, consecutive clinical isolates of P. aeruginosa were obtained from a tertiary referral hospital of north-east India. An efflux pump inhibitor (EPI), carbonyl cyanide m-chlorophenylhydrazone (CCCP) based method was used for determination of efflux pump activity and multiplex polymerase chain reaction (PCR) was performed for molecular characterisation of efflux pump. Minimum inhibitory concentration (MIC) reduction assay was also performed for all the isolates. RESULTS AND CONCLUSION A total number of 56 (23%) have shown efflux mediated FQ resistance. MexAB-OprM efflux system was predominant type. This is the first report of efflux pump mediated FQ resistance from this part of the world and the continued emergence of these mutants with such high MIC range from this part of the world demands serious awareness, diagnostic intervention, and proper therapeutic option.
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Affiliation(s)
| | | | | | | | | | | | - A Bhattacharjee
- Department of Microbiology, Assam University, Silchar, India
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Deshmukh SS, Dutta Choudhury M, Shankar V. Preparation and properties of glucose isomerase immobilized on Indion 48-R. Appl Biochem Biotechnol 1993. [DOI: 10.1007/bf02788045] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Dhamankar VS, Choudhury MD, Vartak HG. High concentration polyacrylamide gel electrophoresis. Anal Biochem 1986; 157:289-90. [PMID: 3777431 DOI: 10.1016/0003-2697(86)90628-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A simple technique is described for easy removal of high concentration polyacrylamide gels after electrophoresis from glass tubes without breaking them.
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Nandy P, Dutta Choudhury M, Chakrabarti P. Effect of sealing on the incorporation of pyrene in goat erythrocyte ghosts — A fluorescence study. J Biosci 1983. [DOI: 10.1007/bf02716855] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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