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Prajapati SK, Senthamizhselvan K, Murugesan R, Mohan P. Utility of proximal mean nocturnal basal impedance in gastroesophageal reflux disease-A preliminary experience. Indian J Gastroenterol 2024:10.1007/s12664-024-01573-7. [PMID: 38619808 DOI: 10.1007/s12664-024-01573-7] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/16/2024]
Affiliation(s)
- Sandeep Kumar Prajapati
- Department of Medical Gastroenterology, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry 605 006, India
| | - Kuppusamy Senthamizhselvan
- Department of Medical Gastroenterology, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry 605 006, India.
| | - Rajeswari Murugesan
- Department of Biostatistics, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry 605 006, India
| | - Pazhanivel Mohan
- Department of Medical Gastroenterology, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry 605 006, India
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Tiwari A, Khanikar D, Bharali P, Prajapati SK, Gattani R. Letter to the Editor: HDV therapy-evolving success parameters. Hepatology 2023; 77:E178-E179. [PMID: 36976543 DOI: 10.1097/hep.0000000000000272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 11/14/2022] [Indexed: 03/29/2023]
Affiliation(s)
- Avinash Tiwari
- Department of Gastroenterology, Sher-i-Kashmir Institute of Medical Sciences, Soura, Srinagar, Jammu, and Kashmir, India
| | - Duncan Khanikar
- Department of Oncology, Dr. Bhubaneswar Borooah Cancer Institute (BBCI): Guwahati, Assam, India
| | - Pankaj Bharali
- Department of Gastroenterology, SCB Medical College & Hospital, Manglabag, Cuttack, India
| | - Sandeep Kumar Prajapati
- Department of Gastroenterology, Jawaharlal Institute of Postgraduate Medical Education & Research (JIPMER), Dhanvantari Nagar, Puducherry, India
| | - Ramkishor Gattani
- Department of Gastroenterology, Institute of Medical Sciences - Banaras Hindu University (BHU), Varanasi, Uttar Pradesh, India
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Tiwari A, Ashraf A, Bhangale N, Prajapati SK, Gattani R. Post-Endoscopic Retrograde Cholangiopancreatography Pancreatitis: Prevention Is Better Than Cure. Pancreas 2023; 52:e260-e262. [PMID: 37751384 DOI: 10.1097/mpa.0000000000002250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/28/2023]
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Tiwari A, Aziz RA, Gattani R, Kumar Prajapati S, Tripathi R. Liver decompensation: the yard stick that measures indications and adverse effects of human albumin infusion. Hepatol Int 2023; 17:770-772. [PMID: 36753027 DOI: 10.1007/s12072-023-10483-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 01/06/2023] [Indexed: 02/09/2023]
Affiliation(s)
- Avinash Tiwari
- Department of Gastroenterology, Sher-I-Kashmir Institute of Medical Sciences, Soura, Srinagar, Jammu and Kashmir, 190011, India.
| | - Riffat Abdul Aziz
- Department of Gastroenterology, Father Muller Medical College, Mangalore, Karnataka, 575002, India
| | - Ramkishor Gattani
- Department of Gastroenterology, Institute of Medical Sciences-Banaras Hindu University (BHU), Varanasi, Uttar Pradesh, 221005, India
| | - Sandeep Kumar Prajapati
- Department of Gastroenterology, Jawaharlal Institute of Postgraduate Medical Education & Research (JIPMER), Dhanvantari Nagar, Puducherry, India
| | - Riddhima Tripathi
- Sharda University School of Medical Sciences and Research, Greater Noida, Uttar Pradesh, India
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Tiwari A, Khanikar D, Prajapati SK, Rathod SG, Tripathi R. Letter: chronic HDV infection-Is ignorance bliss? Aliment Pharmacol Ther 2023; 57:357-358. [PMID: 36641797 DOI: 10.1111/apt.17291] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Accepted: 10/23/2022] [Indexed: 01/16/2023]
Affiliation(s)
- Avinash Tiwari
- Department of Gastroenterology, Sher-i-Kashmir Institute of Medical Sciences, Jammu and Kashmir, Srinagar, India
| | - Duncan Khanikar
- Department of Oncology, Dr. Bhubaneswar Borooah Cancer Institute (BBCI), Guwahati, Assam, India
| | - Sandeep Kumar Prajapati
- Department of Gastroenterology, Jawaharlal Institute of Postgraduate Medical Education & Research (JIPMER), Dhanvantari Nagar, Puducherry, India
| | - Santosh Govind Rathod
- Department of Clinical Hematology, Sher-i-Kashmir Institute of Medical Sciences, Jammu and Kashmir, Srinagar, India
| | - Riddhima Tripathi
- Sharda University School of Medical Sciences and Research, Greater Noida, Uttar Pradesh, India
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Fakhri AA, Prajapati SK, Ghodke AD, Singh G. Studies of beam injection with a compensated bump and uncompensated bump in a synchrotron. Rev Sci Instrum 2013; 84:083303. [PMID: 24007057 DOI: 10.1063/1.4817676] [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] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Synchrotron radiation sources Indus-1 and Indus-2 have a synchrotron as the common injector. A three kicker compensated bump injection scheme was employed for beam injection into this synchrotron. The stored beam current in the synchrotron is higher, when all the three kickers are operated at the same current than when kickers are operated at currents required to generate compensated bump. Beam dynamics studies have been done to understand why this happens. Theoretical studies indicate that higher stored current in the later case is attributed to smaller residual oscillations of injected beam. These studies also reveal that if the angle of the injected beam during beam injection is kept varying, the performance could be further improved. This is experimentally confirmed by injecting the beam on rising part of the injection septum magnet current pulse.
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Affiliation(s)
- Ali Akbar Fakhri
- Raja Ramanna Centre for Advanced Technology, Indore 452013, India
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Kumar S, Singh AK, Prajapati SK, Singh VK. Formulation and Evaluation of once daily sustained release matrix tablets of Aceclofenac using natural gums. ACTA ACUST UNITED AC 2012. [DOI: 10.22270/jddt.v2i1.57] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Abstract
PURPOSE The basic objective of this study is to develop the Flurbiprofen sodium soluble ocusert to increase patient compliance by improving local delivery of the drug. MATERIALS AND METHODS Three different polymers were used in combination to prepare the rate controlling membrane. The drug reservoir was prepared by using hydroxy propyl methyl cellulose. Ocuserts were evaluated for their physicochemical parameters. The optimized formulations were further evaluated for accelerated stability studies, eye irritancy tests, and for in vivo drug release studies. RESULTS Ocuserts were found stable at room temperature and showed a strong positive correlation between in vitro and in vivo drug release. CONCLUSION An appropriate combination of hydrophilic and hydrophobic polymers provides better control of drug delivery.
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Affiliation(s)
- Hitesh Kulhari
- Institute of Pharmacy, Bundelkhand University, Jhansi, UP, India.
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Kulhari H, Pooja D, Prajapati SK, Chauhan AS. Performance evaluation of PAMAM dendrimer based simvastatin formulations. Int J Pharm 2011; 405:203-9. [PMID: 21145960 DOI: 10.1016/j.ijpharm.2010.12.002] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2010] [Revised: 11/30/2010] [Accepted: 12/02/2010] [Indexed: 11/18/2022]
Affiliation(s)
- Hitesh Kulhari
- Institute of Pharmacy, Bundelkhand University, Jhansi, UP 284128, India.
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Srivastava HC, Yadav RS, Joshi H, Valecha N, Mallick PK, Prajapati SK, Dash AP. Therapeutic responses of Plasmodium vivax and P. falciparum to chloroquine, in an area of western India where P. vivax predominates. Ann Trop Med Parasitol 2008; 102:471-80. [PMID: 18782486 DOI: 10.1179/136485908x311759] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
In 2003-2005, following an increase in the local incidence of human malaria, the therapeutic efficacy of chloroquine (CQ) in the treatment of Plasmodium vivax and P. falciparum malaria was evaluated in the Anand district of Gujarat state, in western India. After oral administration of CQ, clinical and parasitological responses were measured over a follow-up period of 28 days, following the standard protocol of the World Health Organization. Most of the recurrent infections were checked, by genotyping, to see whether they were the result of treatment failure or re-infection during the follow-up. At the primary health centre (PHC) in Deva, all 57 P. vivax cases included in the study responded to CQ within 3 days. At the Pansora PHC, however, only 59 [90.8%, with a 95% confidence interval (CI) of 83.7%-97.8%] of the 65 P. vivax cases appeared to respond completely, recurrent infections being observed in the other six cases (9.2%; CI=2.2%-16.3%). Of the four recurrent infections checked by genotyping, however, only two appeared to be the result of true treatment failure. Twenty-seven (81.8%; CI=67.2%-94.4%) of the 33 P. falciparum cases who were enrolled in the study, all from Pansora PHC also showed apparent treatment failure, with one early failure, 17 late clinical failures and nine late parasitological failures. All 23 P. falciparum cases that showed apparent treatment failure and were investigated by genotyping appeared to be true cases of failure, none showing any evidence of re-infection during follow-up. The mean parasite-clearance times for those infected with P. falciparum, both those considered CQ-sensitive and the treatment failures, exceeded 2 days. These results indicate the presence of CQ-resistant P. vivax and P. falciparum in Anand district. The high frequency of CQ failure against P. falciparum observed in this study led to a change in the drug policy at the Pansora PHC, with artemisinin-based combination therapy now being used for the first-line treatment of P. falciparum malaria. Chloroquine remains the recommended first-line treatment for P. vivax infections in the area but the treatment failure seen in at least two P. vivax cases indicates a need for further monitoring of the therapeutic efficacy of CQ against such infections, in central Gujarat and elsewhere.
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Affiliation(s)
- H C Srivastava
- National Institute of Malaria Research (ICMR), Field Station, Civil Hospital, Nadiad - 387001, Gujarat, India.
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Gupta A, Prajapati SK, Balamurugan M, Singh M, Bhatia D. Design and Development of a Proniosomal Transdermal Drug Delivery System for Captopril. TROP J PHARM RES 2007. [DOI: 10.4314/tjpr.v6i2.14647] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Prajapati SK, Joshi H, Valecha N, Reetha AM, Eapen A, Kumar A, Das MK, Yadav RS, Rizvi MA, Dash AP. Allelic polymorphism in the Plasmodium vivax dihydrofolate reductase gene among Indian field isolates. Clin Microbiol Infect 2007; 13:331-4. [PMID: 17391393 DOI: 10.1111/j.1469-0691.2006.01639.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In total, 129 Plasmodium vivax isolates from different geographical areas in India were analysed for point mutations in the P. vivax dihydrofolate reductase gene that were associated with pyrimethamine resistance. A gradual increase in the frequency of mutant genotypes was observed from north to south (p <0.0001). In the northern region (Delhi, Panna and Nadiad), the wild-type genotype was most prevalent, while the mutant genotype predominated in the coastal regions of southern India (Navi Mumbai, Goa and Chennai). Isolates from the Car-Nicobar islands showed only mutant genotypes. The differential geographical pattern of mutations may be associated with the transmission pattern.
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Affiliation(s)
- S K Prajapati
- National Institute of Malaria Research (ICMR), Delhi, India
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Pandey SK, Tripathi BD, Mishra VK, Prajapati SK. Size fractionated speciation of nitrate and sulfate aerosols in a sub-tropical industrial environment. Chemosphere 2006; 63:49-57. [PMID: 16153681 DOI: 10.1016/j.chemosphere.2005.07.035] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2005] [Revised: 07/12/2005] [Accepted: 07/27/2005] [Indexed: 05/04/2023]
Abstract
Size fractionated chemical speciation of acidic aerosols were performed for ammonium sulfate, other sulfates, ammonium nitrate and other nitrates in a sub-tropical industrial area, Bina, India during December 2003 to November 2004. Analysis of variance (ANOVA) revealed highly significant temporal variations (p > .001) in the concentrations of nitrate and sulfate aerosols in all the three size fractions (fine, mid-size and coarse). Winter demonstrated utmost concentrations of ammonium sulfate, which ranged from 3.2 to 26.4 microg m(-3) in fine particles and 0.20-0.34 microg m(-3) in coarse particles. Ammonium sulfate was chiefly in fine mode (43.77% of total particulate sulfate) as compared to coarse particles (28.60% of total particulate sulfate). The major fraction Ammonium sulfate existed in different forms in atmospheric aerosols, for example NH4Fe(SO4)2, (NH4)2SO4, (NH4)3H(SO4)2 in fine particles, and (NH4)4(NO3)SO4+ in coarse particles. Other sulfate concentrations were also higher during winter ranging from 1.89 to 14.3 microg m(-3) in fine particles and 0.12-0.65microg m(-3) in coarse particles. Ammonium nitrate constituted the major fraction of total particulate nitrate all through the year and was principally in fine particles (the highest concentration in January i.e. 14.2 microg m(-3)). Other nitrates were mainly distributed in the fine particles (highest concentration in January i.e. 11.2 microg m(-3)) All the sulfate and nitrate species were mainly distributed in fine mode and have significant impact on human health.
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Affiliation(s)
- Sudhir Kumar Pandey
- Pollution Ecology Research Laboratory, Centre of Advanced Study in Botany, Banaras Hindu University, Varanasi, Uttar Pradesh 221005, India
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