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Sarkar PK, Prajapati PK, Shukla VJ, Ravishankar B. Effect of shodhana treatment on chronic toxicity and recovery of aconite. Toxicol Int 2012; 19:35-41. [PMID: 22736901 PMCID: PMC3339243 DOI: 10.4103/0971-6580.94515] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Aconite is one of the poisonous plants used therapeutically in practice of Ayurveda after proper treatment called as ‘Shodhana’. To determine the effect of Shodhana treatment on chronic toxicity and to assess the effect of recovery period after chronic toxicity of aconite. Raw aconite (RV), urine treated aconite (SM), and milk treated aconite (SD) were administered in 6.25 mg/kg dose in Charles Foster strain albino rats for 90 days for chronic toxicity. Six rats from each were kept for another 30 days without test drugs treatment to observe recovery from chronic toxicity. RV was found to be highly toxic in chronic exposure, SM had no apparent toxicity, but SD had mild toxicity in kidney. The toxicities of RV and SD were reversible, but sudden withdrawal of SM caused adverse effects, suggestive of tapering withdrawal. Shodhana treatments remove toxic effects from raw aconite. Chronic toxicity of aconite is reversible. Confirmed the arrangement of abstract
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Paul S, Rao DD, Sarkar PK. Detection of low level gaseous releases and dose evaluation from continuous gamma dose measurements using a wavelet transformation technique. Appl Radiat Isot 2012; 70:2569-80. [PMID: 22940411 DOI: 10.1016/j.apradiso.2012.07.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2011] [Accepted: 07/03/2012] [Indexed: 11/29/2022]
Abstract
Measurement of environmental dose in the vicinity of a nuclear power plant site (Tarapur, India) is carried out continuously for the years 2007-2010 and attempts have been made to quantify the additional contributions from nuclear power plants over natural background by segregating the background fluctuations from the events due to plume passage using a non-decimated wavelet approach. A conservative estimate obtained using wavelet based analysis has shown a maximum annual dose of 38 μSv in a year at 1.6 km and 4.8 μSv at 10 km from the installation. The detected events within a year are in good agreement with the month wise wind-rose profile indicating reliability of the algorithm for proper detection of an event from the continuous dose rate measurements. The results were validated with the dispersion model dose predictions using the source term from routine monitoring data and meteorological parameters.
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Joshi RM, James JP, Dileep BN, Mulla RM, Reji TK, Ravi PM, Hegde AG, Sarkar PK. Transfer coefficient of 137Cs from feed to cow milk in tropical region Kaiga, India. RADIATION PROTECTION DOSIMETRY 2012; 149:333-339. [PMID: 21685495 DOI: 10.1093/rpd/ncr249] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
In the transport model for the prediction of the concentration of (137)Cs in milk, the transfer coefficient from feed to milk, F(m), is an important parameter. Site-specific transfer coefficient from feed to cow's milk, for (137)Cs in the Kaiga environment, a nuclear power station site in India, determined over a period of 10 y is presented in this paper. The value is determined from (137)Cs concentration in milk and grass samples of the Kaiga region and the result ranged from 6.43E-03 to 1.09E-02 d l(-1) with a geometric mean value of 8.0E-03 d l(-1). The result is compared with that for (40)K, determined concurrently at the same region and ranged from 3.06E-03 to 3.48E-03 d l(-1) with a geometric mean value of 3.26E-03 d l(-1). This parameter is quite useful in decision-making for implementing countermeasures during a large area contamination with (137)Cs in tropical areas like Kaiga.
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Reji TK, Ravi PM, Ajith TL, Dileep BN, Hegde AG, Sarkar PK. Environmental transportation of tritium and estimation of site-specific model parameters for Kaiga site, India. RADIATION PROTECTION DOSIMETRY 2012; 149:304-308. [PMID: 21646248 DOI: 10.1093/rpd/ncr234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Tritium content in air moisture, soil water, rain water and plant water samples collected around the Kaiga site, India was estimated and the scavenging ratio, wet deposition velocity and ratio of specific activities of tritium between soil water and air moisture were calculated and the results are interpreted. Scavenging ratio was found to vary from 0.06 to 1.04 with a mean of 0.46. The wet deposition velocity of tritium observed in the present study was in the range of 3.3E-03 to 1.1E-02 m s(-1) with a mean of 6.6E-03 m s(-1). The ratio of specific activity of tritium in soil moisture to that in air moisture ranged from 0.17 to 0.95 with a mean of 0.49. The specific activity of tritium in plant water in this study varied from 73 to 310 Bq l(-1). The present study is very useful for understanding the process and modelling of transfer of tritium through air/soil/plant system at the Kaiga site.
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Nankar DP, Patra AK, Ravi PM, Joshi CP, Hegde AG, Sarkar PK. Studies on the rain scavenging process of tritium in a tropical site in India. JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 2012; 104:7-13. [PMID: 22115432 DOI: 10.1016/j.jenvrad.2011.09.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2011] [Revised: 09/08/2011] [Accepted: 09/08/2011] [Indexed: 05/31/2023]
Abstract
This study presents the results of one of the first systematic experiments on tritium ((3)H) concentrations in ground level air against that in rainwater near a pressurized heavy water reactor in a tropical region. The samples were collected over the rainy season of three years (2007, 2008 and 2010). For this study, 31 data sets were collected and interpreted based on the theoretical information available in the literature. The specific activity ratio of (3)H between rainwater and air moisture at ground level was calculated for each data set. The average specific activity ratio was found to be 1.96 ± 2.72. A correlation (r = 0.82, p < 0.001) was observed between the total rain hours in a day and the rainwater (3)H activity. Higher rain duration with slower rain rate yielded higher (3)H concentrations as more time was available for the scavenging/wash out process to take effect together with lower dilution. The present data also suggested the need to further investigate the influence of raindrop distribution and other local meteorological parameters on the (3)H wash out process. An attempt was also made to predict the (3)H concentration in air moisture samples using a Gaussian plume dispersion model and the values were compared with the measured (3)H activity. The measured values were generally lower than the predictions.
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Sarkar PK. Deterministic and probabilistic analysis of safety in particle accelerators. RADIATION PROTECTION AND ENVIRONMENT 2012. [DOI: 10.4103/0972-0464.117674] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Sarkar PK. Prospective survey of accelerator safety. RADIATION PROTECTION AND ENVIRONMENT 2012. [DOI: 10.4103/0972-0464.117661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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James JP, Dileep BN, Ravi PM, Joshi RM, Ajith TL, Hegde AG, Sarkar PK. Soil to leaf transfer factor for the radionuclides ²²⁶Ra, ⁴⁰K, ¹³⁷Cs and ⁹⁰Sr at Kaiga region, India. JOURNAL OF ENVIRONMENTAL RADIOACTIVITY 2011; 102:1070-1077. [PMID: 21868141 DOI: 10.1016/j.jenvrad.2011.07.011] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2011] [Revised: 07/19/2011] [Accepted: 07/29/2011] [Indexed: 05/31/2023]
Abstract
Transfer factors are the most important parameters required for mathematical modeling used for environmental impact assessment of radioactive contamination in the environment. In this paper soil to leaf transfer factor for the radionuclides ⁴⁰K, ²²⁶Ra, ¹³⁷Cs and ⁹⁰Sr is estimated for Kaiga region in Karnataka state, India. Among the plants in which study is carried out, ²²⁶Ra, ⁴⁰K, ¹³⁷Cs and ⁹⁰Sr activity in leaves of herbaceous plants is higher than that of tree leaves. Soil to leaf transfer factor for ²²⁶Ra, ⁴⁰K, ¹³⁷Cs and ⁹⁰Sr was found to be in the range of 0.03-0.65, 0.32-8.04, 0.05-3.03 and 0.42-2.67 respectively.
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Patni HK, Nadar MY, Akar DK, Bhati S, Sarkar PK. Selected organ dose conversion coefficients for external photons calculated using ICRP adult voxel phantoms and Monte Carlo code FLUKA. RADIATION PROTECTION DOSIMETRY 2011; 147:406-416. [PMID: 21147784 DOI: 10.1093/rpd/ncq462] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The adult reference male and female computational voxel phantoms recommended by ICRP are adapted into the Monte Carlo transport code FLUKA. The FLUKA code is then utilised for computation of dose conversion coefficients (DCCs) expressed in absorbed dose per air kerma free-in-air for colon, lungs, stomach wall, breast, gonads, urinary bladder, oesophagus, liver and thyroid due to a broad parallel beam of mono-energetic photons impinging in anterior-posterior and posterior-anterior directions in the energy range of 15 keV-10 MeV. The computed DCCs of colon, lungs, stomach wall and breast are found to be in good agreement with the results published in ICRP publication 110. The present work thus validates the use of FLUKA code in computation of organ DCCs for photons using ICRP adult voxel phantoms. Further, the DCCs for gonads, urinary bladder, oesophagus, liver and thyroid are evaluated and compared with results published in ICRP 74 in the above-mentioned energy range and geometries. Significant differences in DCCs are observed for breast, testis and thyroid above 1 MeV, and for most of the organs at energies below 60 keV in comparison with the results published in ICRP 74. The DCCs of female voxel phantom were found to be higher in comparison with male phantom for almost all organs in both the geometries.
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Deokar U, Kulkarni VV, Khot AR, Mathew P, Kamlesh, Purohit RG, Sarkar PK. Radiation exposure control by estimation of multiplication factors for online remote radiation monitoring systems at vitrification plant. RADIATION PROTECTION AND ENVIRONMENT 2011. [DOI: 10.4103/0972-0464.106097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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36
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Sunil C, Shanbhag AA, Nandy M, Bandyopadhyay T, Tripathy SP, Lahiri C, Joshi DS, Sarkar PK. Directional distribution of the ambient neutron dose equivalent from 145-MeV ¹⁹F projectiles incident on thick Al target. RADIATION PROTECTION DOSIMETRY 2011; 143:4-11. [PMID: 21030399 DOI: 10.1093/rpd/ncq285] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The directional distribution of the ambient neutron dose equivalent from 145-MeV (19)F projectiles bombarding a thick aluminium target is measured and analysed. The measurements are carried out with a commercially available dose equivalent meter at 0°, 30°, 60° and 90° with respect to the beam direction. The experimental results are compared with calculated doses from EMPIRE nuclear reaction code and different empirical formulations proposed by others. The results are also compared with the measured data obtained from an earlier experiment at a lower projectile energy of 110 MeV for the same target-projectile combination.
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James JP, Ravi PM, Joshi RM, Hegde AG, Sarkar PK. Estimation of site-specific deposition velocities and mass interception factor using 7Be and the prediction of deposition pattern of radionuclides at Kaiga site, India. RADIATION PROTECTION DOSIMETRY 2010; 141:248-254. [PMID: 20616111 DOI: 10.1093/rpd/ncq171] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Site-specific wet, dry deposition velocities and mass interception factors at Kaiga site, where three PHWR type power plants are operational, using 7Be as a tracer are presented. Mean wet and dry deposition velocities for Kaiga site were found to be 7.4 x 10(-2) m s(-1) and 3.0 x 10(-4) m s(-1), respectively. Mass interception factors for vegetation were found to be 0.7-5.6 m(2) kg(-1) dry weight with a mean of 2.4 m(2) kg(-1) dry weight. The site-specific data were used for the prediction of radionuclide distribution pattern in soil and vegetation in the case of a hypothetical air contamination.
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Ditya P, Das SP, Sarkar PK, Bhattacharyya A. Degradation dynamics of chlorfenapyr residue in chili, cabbage and soil. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2010; 84:602-605. [PMID: 20411237 DOI: 10.1007/s00128-010-9994-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2009] [Accepted: 04/08/2010] [Indexed: 05/29/2023]
Abstract
Chlorfenapyr is a pyrrole group of insecticide, [4-bromo-2-(4-chlorophenyl)-1-ethoxymethyl-5-trifluoromethyl-1H-pyrrole-3-carbonitrile]used as broad spectrum insecticide/acaricide to control whitefly, thrips, caterpillars, mites, leafminers, aphids, etc., chlorfenapyr 10% SC formulation was applied on chili and cabbage twice @ 75 and 100 g a.i./ha along with untreated control. Chlorfenapyr was dissipated in chili, cabbage and soil following the first-order kinetics (logC/C(0) = -kt). The half lives of chlorfenapyr in chili, cabbage and soil were varying from 2.93 to 2.96 days, 2.98 to 3.62 days and 4.06 to 4.36 days respectively, according to the application rate.
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Sarkar PK, Ahluwalia G, Vijayan VK, Talwar A. Critical care aspects of malaria. J Intensive Care Med 2009; 25:93-103. [PMID: 20018606 DOI: 10.1177/0885066609356052] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Malaria remains a major health problem in much of Asia and Africa. A steady number of cases of imported malaria are also seen in many countries of the developed world. Plasmodium falciparum malaria and to some extent malaria caused by other species of Plasmodium can lead to many complications such as acute respiratory distress syndrome (ARDS), cerebral malaria, acute renal failure, severe anemia, thrombocytopenia, and bleeding complications. About 10% of patients with severe malaria die, usually as a result of multiorgan dysfunction. Critical care physicians should be aware of the complications and management of severe malaria. There has been significant progress in the understanding of pathogenesis of severe malaria over the last decade. Effective management of severe malaria includes early suspicion, prompt diagnosis, early institution of appropriate antimalarial chemotherapy, and supportive care, preferably in an intensive care unit. In this article, we review the different manifestations of severe malaria as relevant to critical care physicians and discuss the principles of laboratory diagnosis and management.
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Sarkar PK, Prajapati PK, Shukla VJ, Ravishankar B, Choudhary AK. Toxicity and recovery studies of two ayurvedic preparations of iron. INDIAN JOURNAL OF EXPERIMENTAL BIOLOGY 2009; 47:987-992. [PMID: 20329703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Lauha Bhasma and Mandura Bhasma in 55 mg/kg dose (5 times the therapeutic effective dose) for 60 days exhibited no serious toxic effects in Charles Foster albino rats. Both the drugs showed significant recovery from chronic toxic effect after 45 days of recovery period.
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Sarkar PK, Patel N, Omonuwa K, Kohn N, Shah RD, Talwar A. ROLE OF COMPUTED TOMOGRAPHY IMAGING OF CHEST IN THE SCREENING FOR PULMONARY HYPERTENSION. Chest 2009. [DOI: 10.1378/chest.136.4_meetingabstracts.61s] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Sarkar PK, Mandel J, Chandra S, Dibello C, Hakimisefat B, Kitakule MM, Steinberg HN, Mayo PH, Koenig SJ. ADVANCED CARDIAC LIFE SUPPORT CERTIFICATION MAY NOT BE ADEQUATE TRAINING FOR IN-HOSPITAL CARDIAC ARRESTS: EVIDENCE FROM COMPUTERIZED PATIENT SIMULATOR TESTING. Chest 2009. [DOI: 10.1378/chest.136.4_meetingabstracts.11s-c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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Sunil C, Shanbhag AA, Nandy M, Maiti M, Bandyopadhyay T, Sarkar PK. Direction distribution of ambient neutron dose equivalent from 20 MeV protons incident on thick Be and Cu targets. RADIATION PROTECTION DOSIMETRY 2009; 136:67-73. [PMID: 19700498 DOI: 10.1093/rpd/ncp146] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Ambient neutron dose equivalent from 20 MeV protons incident on thick Be and Cu targets are measured at 0 degrees, 30 degrees, 60 degrees and 90 degrees with respect to the beam direction using a conventional dose equivalent meter. The neutron spectra calculated using nuclear reaction model codes ALICE, PRECO and earlier reported empirical expressions are converted to the ambient dose equivalent using the ICRP fluence-to-dose conversion coefficients and are compared with the measured values. The experimental energy spectra reported in the literature for 19.08 MeV protons incident on a thick Be target are also converted to ambient neutron dose equivalent and are compared with the present experimental results. It is observed that the values estimated from the neutron spectra obtained from the nuclear reaction codes are unable to predict the measured values. The results obtained from the reported experimental energy spectra compare well with the results obtained here. An empirical relation that was used to calculate the directional dependence of the measured neutron dose equivalent from heavy ion-induced reactions is used in this study to check its effectiveness for proton-induced reactions.
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Krishnamoorthy U, Sarkar PK, Nakhuda Y, Mullins PD. Posterior reversible encephalopathy syndrome (PRES) in pregnancy: a diagnostic challenge to obstetricians. J OBSTET GYNAECOL 2009; 29:192-4. [PMID: 19358022 DOI: 10.1080/01443610802716026] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Post-partum clinical presentation with seizures and focal neurological deficit has a wide differential diagnosis. Two cases of the rare condition Posterior Reversible Encephalopathy Syndrome (PRES) associated with pregnancy are presented with complete recovery following multidisciplinary care. One of the cases was associated with Factor VII deficiency in pregnancy and the other with twin gestation and psoas abcess.
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Sarkar PK, Rodgers CA, Mannion P. A prospective study of the correlation between genital pathogens and morbidity following diathermy loop excision of the transformation zone. J OBSTET GYNAECOL 2009; 17:82-5. [PMID: 15511779 DOI: 10.1080/01443619750114239] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Abstract
A prospective study of 48 women was carried out to estimate the incidence of common genital pathogens in women referred to colposcopy clinic requiring diathermy loop excision and to compare patient morbidity in the subgroups with and without genital pathogens. Of the 43 women included in the analysis, genital pathogens were present in 24 cases (56%) and absent in 19 (44%) of the 24 positive cases, 19 (79%) women had pathogen(s) on the cervical swab, 24 (100%) had pathogen(s) on the high vaginal swab and 15 (63%) had both a positive cervical and high vaginal swab (HVS). The most frequently isolated groups of organisms were mixed anaerobes, alone (four HVS and four cervical) or in combination with Gardnerella vaginalis (four HVS and three cervical) or coliforms (two HVS and two cervical). The mean duration of bleeding and vaginal discharge in the two study groups was not statistically significant (t value 1.97, P 0.05; and t value 0.48, P 0.5, respectively). However, the mean duration of bleeding graded by the patient as being moderate to severe was significantly different in the two groups (t value 3.18 P 0.01). Fifty-six per cent of the women in the study had confirmed genital pathogens, predominantly anaerobes, and the prolonged moderate-to-severe bleeding in this group suggests a potential role for prophylactic bacteriocides, although the study size was unable to implicate a single pathogen.
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Sarkar PK, Patel N, Furie RA, Talwar A. Pulmonary manifestations of primary Sjögren's syndrome. THE INDIAN JOURNAL OF CHEST DISEASES & ALLIED SCIENCES 2009; 51:93-101. [PMID: 19445445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Sjögren's syndrome (SS) is a complex autoimmune exocrinopathy with multifactorial pathogenesis and multisystem manifestation. It is called primary Sjögren's syndrome (PSS) when the manifestations are seen without any other co-existent rheumatic diseases. The incidence of respiratory system involvement varies widely in the reported medical literature, partly due to lack of a universal agreement over the diagnostic criteria of the disease and the type of study methods employed. Respiratory system manifestations are protean; upper airway symptoms are very common and so is the complaint of dry cough. The PSS patients may develop interstitial lung diseases (ILDs) such as usual interstitial pneumonia (UIP), non-specific interstitial pneumonia (NSIP), lymphocytic interstitial pneumonia (LIP), bronchiolitis obliterans and organising pneumonia (BOOP), etc. They may also develop the whole spectrum of lymphoproliferative disorders of the lung ranging from LIP to follicular bronchiolitis, nodular lymphoid hyperplasia and low-grade lymphomas. Therapeutic options include symptomatic and supportive measures and corticosteroids as the mainstay of the treatment for ILDs occurring in these patients. In recent years, rituximab (anti-CD20) has emerged as a promising treatment for this disease, though data from controlled trials are still lacking. Pulmonary involvement may be a source of significant morbidity in these patients, though only rarely, it is the cause of death.
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Charova J, Yunus D, Sarkar PK. Incarcerated retroverted gravid uterus presenting as placenta praevia. J OBSTET GYNAECOL 2009; 28:537-9. [PMID: 18850438 DOI: 10.1080/14756360802236682] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Maiti M, Nandy M, Roy SN, Sarkar PK. Light charged particle emission from neutron and alpha-induced reactions. Appl Radiat Isot 2007; 65:656-62. [PMID: 17391970 DOI: 10.1016/j.apradiso.2007.01.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2006] [Revised: 12/20/2006] [Accepted: 01/16/2007] [Indexed: 11/27/2022]
Abstract
Emissions of protons and alpha-particles from neutron and alpha-induced reactions have been estimated using two nuclear reaction model codes ALICE91 and PRECO-2000. Calculated results have been compared with available energy differential and double differential emission cross sections from experimental measurements. Analysis of the data based on different nuclear reaction mechanisms revealed the relative importance of these mechanisms as well as predictive capabilities of the codes used. These results are useful in accelerator-driven systems, radioactive ion beam facilities and space dosimetry.
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Yunus D, Sarkar PK. Compliance with the RCOG's guidelines on medical record keeping in female sterilisation: a complete audit cycle. J OBSTET GYNAECOL 2007; 27:48-50. [PMID: 17365459 DOI: 10.1080/01443610601056277] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Female sterilisation is a major cause of litigation, accounting for 25% of all claims notified to the Medical Defence Union, suggesting that the practice surrounding female sterilisation is less than perfect. Inadequate documentation has been identified as the major cause for complaints and litigation. RCOG published guidelines have emphasised the need for adequate documentation during preoperative counselling. This retrospective audit was carried out with the primary objective to determine whether RCOG's guidelines had been adhered to. Failure to comply with the RCOG guidelines in our study highlights the fact that awareness of published guidelines may not be enough to improve the quality of documentation. This evidence would strongly support the use of a standardised proforma that would improve the quality of documentation during preoperative counselling.
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Sarkar PK, Prajapati PK, Choudhary AK, Shukla VJ, Ravishankar B. Haematinic evaluation of <i> Lauha bhasma</i> and <i> Mandura bhasma</i> on HgCl<sub> 2</sub> -induced anemia in rats. Indian J Pharm Sci 2007. [DOI: 10.4103/0250-474x.39435] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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