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Sarin S, Patra S, Namita, Pande C, Dutta A, Trivedi S. P.452 Decline in the prevalence of hepatitis B virus infection amongst healthy pregnant women in India — the changed scenario. J Clin Virol 2006. [DOI: 10.1016/s1386-6532(06)80625-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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152
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Dutta A, Triolo R. Stability analysis of Functional Electrical Stimulation (FES)-assisted overground gait in an incomplete spinal cord injured subject. J Biomech 2006. [DOI: 10.1016/s0021-9290(06)83353-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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153
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Puri GD, Dutta A, Chinnan NK, Thingnam SKS, Sharma SK, Chari P. Arterial oxygenation changes in valvular heart disease patients with cardiomegaly in different recumbent positions. Eur J Anaesthesiol 2005; 22:834-8. [PMID: 16225717 DOI: 10.1017/s0265021505001407] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND AND OBJECTIVE We studied the effect of different recumbent positions (supine, left and right lateral decubitus), on arterial oxygenation in 42 valvular heart disease patients planned for cardiac surgery. All patients had cardiomegaly (cardiothoracic ratio > or = 0.5) in their chest X-rays. Their left ventricular end-diastolic diameter was also noted from the preoperative echocardiogram. METHODS Arterial blood gas analysis was performed in supine, left and right lateral positions after keeping the patient in a given position for 15 min. During this period all patients received 35% oxygen supplementation. RESULTS Arterial oxygen tension and haemoglobin saturation were significantly higher in the right lateral position (PaO2 = 120.6 +/- 29.5 mmHg, SaO2 = 98.1 +/- 1.4%) than in supine (PaO2 = 111.0 +/- 30.6 mmHg, SaO2 = 97.6 +/- 2.2%) and left lateral positions (PaO2 = 109.7 +/- 32.0 mmHg, SaO2 = 97.6 +/- 1.7%; mean +/- SD; P 0.05). The change in PaO2 and SaO2 with change of posture from left to right was significantly related to left ventricular end-diastolic diameter (r = 0.50 and r = 0.63, respectively; Pearson correlation). Repeated measures of analysis of variance with left ventricular end-diastolic diameter as a covariate showed a significant change in arterial PaO2 with posture (P = 0.011). CONCLUSION Right lateral posture improves arterial oxygenation in the valvular heart disease patient with an enlarged left ventricle. In the preoperative period, these patients may benefit from a right lateral posture when lying in bed.
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Bandyopadhyay SK, Dutta S, Dutta A. Panniculitis-like T-cell lymphoma with fatal termination. JOURNAL OF THE INDIAN MEDICAL ASSOCIATION 2005; 103:551-2. [PMID: 16498764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
A 58-year-old male presented with three weeks history of multiple subcutaneous nodules and fever. Histopathological feature of the nodule was characteristic of panniculitis. Three months later, the patient presented with carvical lymphadenopathy and compressive thoracic myelopathy and a diagnosis of diffuse mixed- cell lymphoma was established. Immunohistochemical study of subcutaneous lesions confirmed their T-cell origin. Chemotherapy was started but patient succumbed to his disease.
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Dutta A, Chakraborty A, Saha A, Ray S, Chatterjee A. Interaction of radiation- and bleomycin-induced lesions and influence of glutathione level on the interaction. Mutagenesis 2005; 20:329-35. [PMID: 16014360 DOI: 10.1093/mutage/gei046] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Radiation-induced exchange aberrations are thought to arise as a consequence of misrejoining of free ends of DNA double strand breaks (dsbs). In quiescent mammalian cells this process of misrejoining is prevalently taken up by the non-homologous end joining (NHEJ) process. In order to investigate the role of glutathione (GSH) in DNA dsb rejoining, the interaction of the lesions induced by bleomycin (Blem) and by radiation was studied since the lesions caused by both have similar and apparent rapid rates of repair. Endogenous GSH was depleted by buthionine sulfoximine (BSO) and chromosome aberrations (CAs) of human lymphocytes were scored from first cycle metaphases. Gamma radiation was administered 2 h after Blem treatment in combined studies. In the case of BSO, the treatment was given 3 h before Blem treatment. The BSO-treated samples showed higher sensitivity to radiation than BSO-untreated ones. Combined treatment of Blem and radiation induced higher frequency of CAs, in particular the exchange aberrations and interstitial deletions. However, such increased frequency of exchange aberrations was reduced drastically and the frequency of terminal deletions was increased significantly when combined treatment was given to BSO-pretreated cells. The consistent level of Ku70 protein in all the treated samples, with undetectable level of Rad51 in the G0-lymphocytes indicates the involvement of NHEJ pathway in misrejoining of DNA dsbs. It may be hypothesized that reduction in the frequency of exchange aberrations as induced by Blem + radiation combined treatment in BSO-treated samples could be because of reduced NHEJ pathway.
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Abstract
Ion transport in Li(2)O-CaO-Bi(2)O(3) glasses has been studied in the frequency range from 10 Hz to 2 MHz and in the temperature range from 293 to 543 K. The variation of the dc conductivity and the activation energy of these glasses with composition have been compared with those of binary lithium bismuthate glasses. It has been observed that the introduction of CaO in small amount does not effect the dc conductivity and the corresponding activation energy, but the larger amount of CaO changes them to some extent. The frequency-dependent conductivity has been studied using both conductivity and modulus formalisms. The values of the nonexponential parameter and frequency exponent are found to differ for the Li(2)O-CaO-Bi(2)O(3) glasses from those for the binary Li(2)O-Bi(2)O(3) glasses. The concentration of mobile Li(+) ions does not change appreciably with the change in the Li(2)O as well as CaO content in the compositions. The increasing amount of CaO in the glass compositions for fixed Li(2)O content points out that CaO dilates the glass network, enhancing the migration of Li(+) ions.
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Nickoloff E, Lu Z, Dutta A, So J, Moses J. SU-DD-A2-03: Influence of Equipment Variables Upon Cardiac Radiation Levels. Med Phys 2005. [DOI: 10.1118/1.1997420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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158
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Nickoloff E, Dutta A, Lu Z, So J, Ruzal-Shapiro C. SU-DD-A2-04: Direct Measurement of Pediatric CT Radiation Dose with a New Solid State Detector System. Med Phys 2005. [DOI: 10.1118/1.1997421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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159
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Thomas MB, Dutta A, Brown T, Charnsangavej C, Rashid A, Hoff PM, Dancey J, Abbruzzese JL. A phase II open-label study of OSI-774 (NSC 718781) in unresectable hepatocellular carcinoma. J Clin Oncol 2005. [DOI: 10.1200/jco.2005.23.16_suppl.4038] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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160
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Nickoloff E, Lu Z, So J, Dutta A. SU-FF-I-09: Comparison of Radiation Dose Indexes For CT Scanners: Measured Verses Automated Scanner Calculations. Med Phys 2005. [DOI: 10.1118/1.1997489] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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161
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Das AK, Kashyap RC, Dutta A. Facial Nerve Neuroma : A Case Report. Med J Armed Forces India 2005; 61:184-5. [DOI: 10.1016/s0377-1237(05)80022-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2002] [Accepted: 10/20/2003] [Indexed: 10/18/2022] Open
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Mondal RK, Dutta A, Basu K, Chakraborti S. Virchows node: rare presentation of childhood hepatocellular carcinoma. Indian J Pediatr 2005; 72:177-8. [PMID: 15758545 DOI: 10.1007/bf02760707] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Cervical (supra-clavicular) lymphadenopathy may not always be due to tuberculosis in children. Hepatocellular carcinoma in children even may present as supra clavicular lymphadenopathy (Virchow's node).
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Dutta A, Batra J, Pandey-Rai S, Singh D, Kumar S, Sen J. Expression of terpenoid indole alkaloid biosynthetic pathway genes corresponds to accumulation of related alkaloids in Catharanthus roseus (L.) G. Don. PLANTA 2005; 220:376-83. [PMID: 15714355 DOI: 10.1007/s00425-004-1380-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2004] [Accepted: 07/06/2004] [Indexed: 05/23/2023]
Abstract
Madagascar periwinkle, Catharanthus roseus (L.) G. Don, a medicinally important plant, produces anticancer dimeric alkaloids, vinblastine and vincristine, in the leaves and accumulates antihypertensive alkaloids, ajmalicine and serpentine, in the roots. This plant grows wild in distant tropical and sub-tropical geographical locations with different agro-climates and shows wide variations in morphological and alkaloid yield-related traits. In order to understand the correlation between the expression of terpenoid indole alkaloid (TIA) pathway genes and accumulation of related alkaloids, six different genetic resources of C. roseus, including the medicinal cultivars Nirmal, Prabal, Dhawal, the mutants gsr-3 and gsr-6, and one horticultural variety, Pacifica blush, were studied. The expression profiles of one early and two late TIA biosynthetic pathway genes, namely, strictosidine synthase, desacetoxyvindoline 4-hydroxylase and deacetyl vindoline 4-O-acetyl transferase were analyzed in these plants. A positive correlation between transcript abundance and accumulation of related alkaloids was observed in the different genetic resources. The potential of these TIA biosynthetic pathway genes for use in screening of high-yielding C. roseus germplasm has been discussed.
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Dutta A, Kumra VP, Sood J, Swaroop A. Guided tactile probing: a modified blind orotracheal intubation technique for the problem-oriented difficult airway. Acta Anaesthesiol Scand 2005; 49:106-9. [PMID: 15675994 DOI: 10.1111/j.1399-6576.2004.00545.x] [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: 11/30/2022]
Abstract
We present 'tactile probing', a guided approach to blind orotracheal intubation to secure a problem-oriented anticipated difficult airway in a 55-year-old male patient scheduled for elective surgical tracheostomy for a postradiotherapy translaryngeal carcinoma. Standard techniques to gain the airway were inapplicable in this case and awake flexible fiberoscopy-aided intubation had already failed.
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Chatterjee M, Sarkar D, Dutta A, Das M, Sarkar K, Mandal C. Effect of Aloe vera on nitric oxide production by macrophages during inflammation. Indian J Pharmacol 2005. [DOI: 10.4103/0253-7613.19073] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Katiyar CK, Arora D, Mehrotra R, Nandi AR, Dutta A, Jain AK. Management of chronic hepatitis B with New Livfit in end stage renal disease. INDIAN JOURNAL OF PHYSIOLOGY AND PHARMACOLOGY 2005; 49:83-8. [PMID: 15881863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
New Livfit (NLF) is a standardized, poly-herbal formulation that has been found useful in the management of hepatitis. The aim of this placebo-controlled study was to evaluate its usefulness against hepatitis B virus in the patients of end stage renal disease (ESRD). Patients were regularly evaluated at 6, 12, 24 and 36 weeks of therapy. With 36 weeks of treatment of NLF, there was rapid clearing of HBV-DNA in a significant number of patients. Significant seroconversion of the other markers of hepatitis B and restoration of the raised levels of ALT and AST was observed. The study suggests the potential usefulness of NLF in the control of HBV infection in the patients of ESRD prior to renal transplant.
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Batra J, Dutta A, Singh D, Kumar S, Sen J. Growth and terpenoid indole alkaloid production in Catharanthus roseus hairy root clones in relation to left- and right-termini-linked Ri T-DNA gene integration. PLANT CELL REPORTS 2004; 23:148-54. [PMID: 15221274 DOI: 10.1007/s00299-004-0815-x] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2004] [Revised: 04/27/2004] [Accepted: 04/28/2004] [Indexed: 05/13/2023]
Abstract
Hairy root cultures of Catharanthus roseus var. Prabal were established by infecting the leaves with Agrobacterium rhizogenes agropine-type A4 strain. Two hundred and fifty independent root clones were evaluated for growth, morphology, number of integration of Ri T-DNA genes and alkaloid contents. On the basis of growth pattern, type of branching and number of lateral roots we were able to separate the hairy root clones into four categories. However based on the integration of the Ri T(L)-DNA and T(R)-DNA genes, there were only three different categories of independent hairy root clones-C1 (rolA&B(+)/ags(+)), C2 (rolA&B(-)/ags(+)) and C3 (rolA&B(+)/ags(-)). Southern hybridization analysis revealed both single and multiple copies of T-DNA integration in the root clones. The accumulation of considerable amounts of the root-specific alkaloids ajmalicine and serpentine was observed in the presence of both the T(L)-DNA and T(R)-DNA genes (C1) and the T(L)-DNA gene (C3) alone. Two rolA&B(-) but ags(+) clones (C2) accumulated much less or only very negligible amounts of ajmalicine. The possible role of the T(L)-DNA and T(R)-DNA genes on growth and alkaloid accumulation in these root clones is discussed.
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Dutta A, Chengara A, Nikolov A, Wasan D, Chen K, Campbell B. Destabilization of aerated food products: effects of Ostwald ripening and gas diffusion. J FOOD ENG 2004. [DOI: 10.1016/s0260-8774(03)00230-9] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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169
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Dutta A, Basu P. An Investigation on Heat Transfer to the Standpipe of a Circulating Fluidized Bed Boiler. Chem Eng Res Des 2003. [DOI: 10.1205/026387603322482239] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Malhotra SK, Dutta A, Singh G. Counting the way to induction of anaesthesia. Paediatr Anaesth 2003; 13:180-1. [PMID: 12562496 DOI: 10.1046/j.1460-9592.2003.01019_3.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Dutta A, Chengara A, Nikolov A, Wasan D, Chen K, Campbell B. Effect of Surfactant Composition on Aeration Characteristics and Stability of Foams in Aerated Food Products. J Food Sci 2002. [DOI: 10.1111/j.1365-2621.2002.tb08862.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Malhotra SK, Joshi M, Grover S, Sharma SC, Dutta A. Auditory function following spinal analgesia. Comparison of two spinal needles. Eur J Anaesthesiol 2002; 19:69-72. [PMID: 11913806 DOI: 10.1017/s026502150200011x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND AND OBJECTIVE Auditory impairment is among the lesser known complications of spinal analgesia. The aim of the present study was to determine the degree of vestibulocochlear dysfunction in patients undergoing spinal analgesia for lower abdominal surgery. METHODS Eighty patients who had received spinal analgesia for lower abdominal surgery were studied. Males were undergoing inguinal herniorraphy and the females tubectomy. Audiograms were performed before operation and on the second and seventh postoperative days. Hearing levels were measured from 250 Hz-8 kHz. In Group 1 (n = 40) a 22-gauge, cutting type of spinal needle (Howard Jones) was used. In Group 2 (n = 40) a 25-gauge, non-cutting spinal needle (Whitacre) was used. RESULTS Hearing loss >10 dB was noticed in three patients in Group 1 and none in Group 2. The mean hearing level was more reduced in Group 1 patients. CONCLUSIONS Use of cutting type spinal needle is associated with a greater decrease in mean hearing levels compared to the non-cutting type.
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Sripriya R, Banerjee P, Rao P, Dutta A, Rao M. Critical evaluation of factors affecting the operation of dense medium cyclones treating medium coking coals. ACTA ACUST UNITED AC 2001. [DOI: 10.1016/s0301-7516(01)00048-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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