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Srivastava A, Rawat P, Kumar M, Nirala V, Singh SP, Prabhu KN, Sundaresan V, Srivastava S. Identification of potential source of quality raw material of Costus speciosus from Western coast of Malabar. JPC-J PLANAR CHROMAT 2022. [DOI: 10.1007/s00764-022-00167-3] [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: 11/30/2022]
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Rawat P, Imam SS, Gupta S. Formulation of Cabotegravir Loaded Gold Nanoparticles: Optimization, Characterization to In-Vitro Cytotoxicity Study. J CLUST SCI 2022; 34:893-905. [PMID: 35493274 PMCID: PMC9044393 DOI: 10.1007/s10876-022-02261-2] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Accepted: 03/29/2022] [Indexed: 11/30/2022]
Abstract
The effective and preventive treatment of HIV is one of the difficult challenges worldwide. It requires the development of an effective prophylactic strategy to prevent HIV/AIDS. This study aimed to synthesize Cabotegravir (CAB)-biodegradable gold (Au) nanoparticles by using pectin as a reducer and stabilizer. CAB-GNPs were prepared by the slightly modified Turkevich method. CAB-GNPs were optimized using Box Behnken design for independent variables gold chloride (A), pectin (B) and pH range (C). The effects of independent variables were observed on particle size (Y1) and encapsulation efficiency (Y2). The results of the study revealed that the optimized nanoparticles (GLN7) had a particle size of 3.9 ± 0.1 nm and encapsulation efficiency of 97.2 ± 3.9%. TEM study showed the spherical shape particles. The in-vitro drug release revealed 62.1 ± 0.5% release of CAB in simulated gastric buffer (pH 1.2) and 45.5 ± 2.8% in physiological buffer (pH 7.4). In-vitro cytotoxicity study and antibacterial activity depicted the safety of the prepared NPs by showing lesser toxicity than pure CAB. From the results, our experimental outcomes concluded that CAB gold nanoparticles composed of pectin may constitute a preferred embodiment for the delivery of CAB.
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Affiliation(s)
- Purnima Rawat
- Discipline of Biosciences and Biomedical Engineering, Indian Institute of Technology, Madhya Pradesh, Indore, 453552 India
| | - Syed Sarim Imam
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh, 11451 Saudi Arabia
| | - Sharad Gupta
- Discipline of Biosciences and Biomedical Engineering, Indian Institute of Technology, Madhya Pradesh, Indore, 453552 India
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Rawat P, Gupta S. Dual engineered gold nanoparticle based synergistic prophylaxis delivery system for HIV/AIDS. Med Hypotheses 2021; 150:110576. [PMID: 33799160 DOI: 10.1016/j.mehy.2021.110576] [Citation(s) in RCA: 3] [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] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 03/10/2021] [Accepted: 03/16/2021] [Indexed: 11/15/2022]
Abstract
HIV is a pandemic and continuously raises problem across the world. This disease puts an immense pressure on treatment modalities. There are only few clinically accepted drugs available for the treatment and few molecules under clinical development. Although, the antiretroviral drugs give reliable and positive response on control of virus replication but during the long treatment, it has been affirmed that there are number of side effects. With recent advancements in biotechnology, nanomaterials such as gold and silver etc. are proving to be a game changer in targeted drug delivery treatment. As gold nanoparticles (AuNPs) are biocompatible natural excipients, a lot of scientists are very eager to investigate more about the immune effects of AuNPs to create a safe and cost effective treatment that could potentially help in the reduction of numerous toxic effects present in the existing treatments of various critical diseases like cancer and HIV etc. In this context, the present hypothesis recommends the use of combination drug delivery strategy based on gold nanoparticles that could pave the way to overcome adverse results of existing delivery techniques of antiretroviral drugs to treat HIV. This review also highlights the fact that a proper development of this gold nanoparticle combination antiretroviral drug delivery approach will not only help to suppress the virus multiplication but also target the viral entry area by attaching with gp120 (glycoprotein 120), and inhibit the binding with CD4 (Cluster of differentiation 4) T cells.
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Affiliation(s)
- Purnima Rawat
- Discipline of Biosciences and Biomedical Engineering, Indian Institute of Technology, Indore, Madhya Pradesh 453552, India.
| | - Sharad Gupta
- Discipline of Biosciences and Biomedical Engineering, Indian Institute of Technology, Indore, Madhya Pradesh 453552, India.
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Rawat P, Thomas SC, Ahmad FJ, Talegaonkar S. WITHDRAWN: Appraisal of Bone Targeting Potential of Nanohydroxyapatite Based Drug Carriers Conjugated with Pamidronate in Osteoporosis Treatment. Pharm Nanotechnol 2019; 07:PNT-EPUB-102793. [PMID: 31804171 DOI: 10.2174/2211738507666191205141718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2019] [Revised: 10/08/2019] [Accepted: 11/26/2019] [Indexed: 11/22/2022]
Abstract
Bentham Science has decided to withdraw this article from the journal in accordance with BSP Editorial Policies and apologizes to its readers for any inconvenience this may cause. Bentham Science Disclaimer It is a condition of publication that manuscripts submitted to this journal have not been published and will not be simultaneously submitted or published elsewhere. Furthermore, any data, illustration, structure or table that has been published elsewhere must be reported, and copyright permission for reproduction must be obtained. Plagiarism is strictly forbidden, and by submitting the article for publication the authors agree that the publishers have the legal right to take appropriate action against the authors, if plagiarism or fabricated information is discovered. By submitting a manuscript the authors agree that the copyright of their article is transferred to the publishers if and when the article is accepted for publication.
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Affiliation(s)
- Purnima Rawat
- Nanomedicine Research Lab, Department of Pharmaceutics, Faculty of Pharmacy, Jamia Hamdard, New Delhi-110062. India
| | - Shindu C Thomas
- Nanomedicine Research Lab, Department of Pharmaceutics, Faculty of Pharmacy, Jamia Hamdard, New Delhi-110062. India
| | - Farhan Jalees Ahmad
- Nanomedicine Research Lab, Department of Pharmaceutics, Faculty of Pharmacy, Jamia Hamdard, New Delhi-110062. India
| | - Sushama Talegaonkar
- Nanomedicine Research Lab, Department of Pharmaceutics, Faculty of Pharmacy, Jamia Hamdard, New Delhi-110062. India
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Abstract
Purpose: To report results of a novel technique for sutureless, glueless intrascleral fixation of three-piece posterior chamber intraocular lens (IOL) using 26-G needle for management of aphakia. Methods: In this prospective series, 30 eyes of 20 patients with aphakia, subluxated IOL, or crystalline lens were included. 26-G-needle-guided intrascleral fixation of three-piece posterior chamber IOL was performed according to the described technique. The patients were evaluated on day 2, 1 week, 6 weeks, and 3 months postoperatively for change in best-corrected visual acuity (BCVA), intraocular pressure (IOP), IOL centration, and any other complications. The postoperative tilt of the IOL was indirectly measured by determining the lenticular astigmatism which in turn was calculated by the difference between net corneal astigmatism and refractive astigmatism. Paired t-test was used to determine the significance of any association between the preoperative and postoperative BCVA and IOP. P < 0.05 was considered significant. Results: Of 30 eyes (n = 30 patients), 18 were surgical aphakia, 6 traumatic aphakia, 5 subluxated IOL, and 1 ectopia lentis (Marfan syndrome). The mean preoperative BCVA was 1.37 ± 0.37 (logMAR) and postoperative BCVA at 3 months was 0.37 ± 0.29 (logMAR). A significant improvement in the mean BCVA (P < 0.05) was observed after the procedure. The mean IOP preoperatively was 13.33 ± 4.18 and postoperatively at 3 months was 12.82 ± 3.97 (P > 0.05), which was not significant. None of the eyes developed any intraoperative and postoperative complications. The IOLs had appropriate centration and stability. Conclusion: We have developed this new technique for intrascleral IOL fixation which is quite simple, cost-effective, minimally invasive, neither requires glue nor suture and gives consistent outcome.
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Affiliation(s)
- Shweta Walia
- Department of Ophthalmology, Mahatma Gandhi Memorial Medical College, M.Y. Hospital, Indore, Madhya Pradesh, India
| | - Santosh Kashyap
- Department of Ophthalmology, Mahatma Gandhi Memorial Medical College, M.Y. Hospital, Indore, Madhya Pradesh, India
| | - V Bhaisare
- Department of Ophthalmology, Mahatma Gandhi Memorial Medical College, M.Y. Hospital, Indore, Madhya Pradesh, India
| | - P Rawat
- Department of Ophthalmology, Mahatma Gandhi Memorial Medical College, M.Y. Hospital, Indore, Madhya Pradesh, India
| | - N Kori
- Department of Ophthalmology, Mahatma Gandhi Memorial Medical College, M.Y. Hospital, Indore, Madhya Pradesh, India
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Pandey S, Mahtab A, Rai N, Rawat P, Ahmad FJ, Talegaonkar S. Emerging Role of CD44 Receptor as a Potential Target in Disease Diagnosis: A Patent Review. ACTA ACUST UNITED AC 2018; 11:77-91. [PMID: 28891438 DOI: 10.2174/1872213x11666170907111858] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Revised: 08/31/2017] [Accepted: 08/31/2017] [Indexed: 11/22/2022]
Abstract
BACKGROUND The CD44 receptor is a cell surface glycoprotein, which mediates many physiological and pathological activities. Its key role is to provide defence against inflammatory reactions by cellular transmigration and cell signalling. In pathological conditions, it gives destructive outcomes by mediating migration of pathogenic cells to vital organs resulting in tissue and organ damage. It binds to several ligands principally the hyaluronan. OBJECTIVE This review explores CD44 structure, functions, and its potential as a disease indicator and therapeutic target. METHOD From a thorough literature review on the CD44 receptor, several patents of targeting approaches have been identified and herewith reviewed which recommend CD44-binding proteins, CD44-binding antibodies, antibody fragments, pharmaceutical compositions, as well as nucleic acids as a targeting moiety. RESULT Applicability of CD44 overexpression and its targeting has now been extensively utilized in the disease diagnosis and real-time bio imaging of pathologic cells. CONCLUSION A thorough understanding of CD44-receptor structure, expression and diverse functions towards different cell types would offer an opportunity to develop better therapeutic approaches in the near future by overcoming all the shortcomings of toxicity and efficacy. The present review includes recent patents of CD44 receptor targeting approaches that have been presented in the different agencies: European (EP), US, and World Intellectual Property Organization (WIPO) and a general analysis of the future developments and trends in this emerging area.
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Affiliation(s)
- Shweta Pandey
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi- 110 062. India
| | - Asiya Mahtab
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi- 110 062. India
| | - Nishant Rai
- Department of Pharmacology, Vallabhbhai Patel Chest Institute, University of Delhi, Delhi -110 007. India
| | - Purnima Rawat
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi- 110 062. India
| | - Farhan J Ahmad
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi- 110 062. India
| | - Sushama Talegaonkar
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi- 110 062. India
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Shashikumar N, Baithalu R, Bathla S, Ali S, Rawat P, Kumaresan A, Kumar S, Maharana B, Singh G, Puneeth Kumar D, Singh S, Lathwal S, Jaiswal L, Mohanty T, Mohanty A. Global proteomic analysis of water buffalo ( Bubalus bubalis ) saliva at different stages of estrous cycle using high throughput mass spectrometry. Theriogenology 2018; 110:52-60. [DOI: 10.1016/j.theriogenology.2017.12.046] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Revised: 12/30/2017] [Accepted: 12/30/2017] [Indexed: 01/07/2023]
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Gupta R, Chaturvedi M, Kushwaha S, Jalan N, Rawat P, Thakur R. Clinical, laboratory and Imaging characteristics in patients with Neurological deficits in Tuberculous meningitis and its effect on patient outcome. Int J Infect Dis 2016. [DOI: 10.1016/j.ijid.2016.11.199] [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: 11/27/2022] Open
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Thomas SC, Sharma H, Rawat P, Verma AK, Leekha A, Kumar V, Tyagi A, Gurjar BS, Iqbal Z, Talegaonkar S. Synergistic anticancer efficacy of Bendamustine Hydrochloride loaded bioactive Hydroxyapatite nanoparticles: In-vitro, ex-vivo and in-vivo evaluation. Colloids Surf B Biointerfaces 2016; 146:852-60. [DOI: 10.1016/j.colsurfb.2016.07.035] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Revised: 06/14/2016] [Accepted: 07/15/2016] [Indexed: 10/21/2022]
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Pandey S, Rai N, Rawat P, Ahmad FJ, Talegaonkar S. Nanofacilitated synergistic treatment for rheumatoid arthritis: A ‘three-pronged’ approach. Med Hypotheses 2016; 92:44-7. [DOI: 10.1016/j.mehy.2016.04.026] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Accepted: 04/13/2016] [Indexed: 10/21/2022]
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Rawat P, Ahmad I, Thomas SC, Pandey S, Vohora D, Gupta S, Ahmad FJ, Talegaonkar S. Revisiting bone targeting potential of novel hydroxyapatite based surface modified PLGA nanoparticles of risedronate: Pharmacokinetic and biochemical assessment. Int J Pharm 2016; 506:253-61. [DOI: 10.1016/j.ijpharm.2016.04.049] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2016] [Revised: 04/15/2016] [Accepted: 04/19/2016] [Indexed: 10/21/2022]
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Rawat P, Singh R. Spectral analysis, structural elucidation and evaluation of chemical reactivity of synthesized ethyl-4-[(2-cyano-acetyl)-hydrazonomethyl]-3,5-dimethyl-1H-pyrrole-2-carboxylate through experimental studies and quantum chemical calculations. J Mol Struct 2014. [DOI: 10.1016/j.molstruc.2014.05.050] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Siddiqui JA, Swarnkar G, Sharan K, Chakravarti B, Gautam AK, Rawat P, Kumar M, Gupta V, Manickavasagam L, Dwivedi AK, Maurya R, Chattopadhyay N. A naturally occurring rare analog of quercetin promotes peak bone mass achievement and exerts anabolic effect on osteoporotic bone. Osteoporos Int 2011; 22:3013-27. [PMID: 21225417 DOI: 10.1007/s00198-010-1519-4] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2010] [Accepted: 12/06/2010] [Indexed: 12/01/2022]
Abstract
UNLABELLED The effect of quercetin C-glucoside (QCG) on osteoblast function in vitro and bone formation in vivo was investigated. QCG supplementation promoted peak bone mass achievement in growing rats and new bone formation in osteopenic rats. QCG has substantial oral bioavailability. Findings suggest a significant bone anabolic effect of QCG. INTRODUCTION Recently, we showed that extracts of Ulmus wallichiana promoted peak bone mass achievement in growing rats and preserved trabecular bone mass and cortical bone strength in ovariectomized (OVx) rats. 3,3',4',5,7-Pentahydroxyflavone-6-C-β-D-glucopyranoside, a QCG, is the most abundant bioactive compound of U. wallichiana extract. We hypothesize that QCG exerts bone anabolic effects by stimulating osteoblast function. METHODS Osteoblast cultures were harvested from rat calvaria and bone marrow (BM) to study differentiation and mineralization. In vivo, growing female Sprague Dawley rats and OVx rats with osteopenia were administered QCG (5.0 or 10.0 mg kg(-1) day(-1)) orally for 12 weeks. Efficacy was evaluated by examining changes in bone microarchitecture using histomorphometric and microcomputed tomographic analyses and by determination of new bone formation by fluorescent labeling of bone. Plasma and BM levels of QCG were determined by high-performance liquid chromatography. RESULTS QCG was much more potent than quercetin (Q) in stimulating osteoblast differentiation, and the effect of QCG was not mediated by estrogen receptors. In growing rats, QCG increased BM osteoprogenitors, bone mineral density, bone formation rate, and cortical deposition. In osteopenic rats, QCG treatment increased bone formation rate and improved trabecular microarchitecture. Comparison with the sham group (ovary intact) revealed significant restoration of trabecular bone in osteopenic rats treated with QCG. QCG levels in the BM were ~50% of that of the plasma levels. CONCLUSION QCG stimulated modeling-directed bone accrual and exerted anabolic effects on osteopenic rats by direct stimulatory effect on osteoprogenitors likely due to substantial QCG delivery at tissue level following oral administration.
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Affiliation(s)
- J A Siddiqui
- Division of Endocrinology, Central Drug Research Institute (Council of Scientific and Industrial Research), Chattar Manzil, P.O. Box 173, Lucknow, India
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Sharan K, Siddiqui J, Swarnkar G, Rawat P, Maurya R, Sanyal S, Chattopadhyay N. ISOLATION AND CHARACTERIZATION OF A NOVEL BONE FORMING AGENT (CDROSTEOID-II) FROM NATURAL SOURCE. Maturitas 2009. [DOI: 10.1016/s0378-5122(09)70155-0] [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: 11/28/2022]
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Affiliation(s)
- A Mani
- Christian Medical College, Ludhiana, Punjab, North India
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