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Lee S, Lim B, Chan T, Neo S, Low A, Tung J, Sundaram P, Cheng C, Lee L, Lim Y. Rezūm water vapour therapy (Rezūm): Is it safe to continue antiplatelet or anticoagulation medication? Eur Urol 2023. [DOI: 10.1016/s0302-2838(23)00284-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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Vijaykumar D, Lekshmi A, Aggarwal R, Sundaram P. 156P The effectiveness of intraoperative administration of both radioactive isotope and blue dye without pre-surgery gamma imaging in comparison with the conventional technique for sentinel node biopsy. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.03.170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Sundaram P, Padmanaban R. Dynamical resonances of the deuterated CH 2+ complex in the electronic ground state: A quantum wavepacket study. J Chem Phys 2018; 148:164306. [PMID: 29716227 DOI: 10.1063/1.5008783] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
We here investigate the effects of isotopic substituents on the vibrational energy levels of the CH2+ complex, supported by the electronic ground (1 2A') potential energy surface (PES) of the H + CH+ reaction. We calculate the transition state spectrum by Fourier transforming the time-autocorrelation function of the initial wavepacket (WP) chosen in the interaction region of the PES. Using the time-dependent WP approach, the dynamical resonances are identified as bound and quasibound in nature, and they are characterized in terms of the eigenfunctions and lifetimes. The present work on the isotopic variants [CHD+(CDH+) and CD2+] is compared with our earlier work [P. Sundaram et al., Phys. Chem. Chem. Phys. 19, 20172 (2017)] on the parent CH2+ species. The isotopic variants reveal a large number of peaks in the spectra and the eigenfunctions exhibit the systematic nodal progressions and periodic orbits, the same as in CH2+. While the CD2+ complex exactly mimics the resonance behaviors (local and hyperspherical modes) of the bound and quasibound CH2+ complex, the CHD+(CDH+) complex reveals only the local mode behaviors at low energies and significantly less number of resonance structures at high energies. Lifetime analysis of the isotopic variants implies that the CD2+ complex survives much longer than the CHD+(CDH+) complex and concludes the work by noting the following order in the decay profile of the deuterated CH2+ resonances as CH2+>CHD+(CDH+) >CD2+.
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Sundaram P, Manivannan V, Padmanaban R. Dynamics and resonances of the H( 2S) + CH +(X 1Σ +) reaction in the electronic ground state: a detailed quantum wavepacket study. Phys Chem Chem Phys 2017; 19:20172-20187. [PMID: 28726890 DOI: 10.1039/c7cp03110f] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Initial state-selected and energy resolved channel-specific reaction probabilities, integral cross sections and thermal rate constants of the H(2S) + CH+(X1Σ+) reaction are calculated within the coupled states approximation by a time-dependent wave packet propagation method. The new ab initio global potential energy surface (PES) of the electronic ground state (1 2A') of the system, recently reported by Li et al. [J. Chem. Phys., 2015, 142, 124302], is employed for this purpose. All partial wave contributions up to the total angular momentum J = 60 are considered to obtain the converged integral reaction cross section up to a collision energy of 1.0 eV. Thermal rate constants are calculated by averaging the reaction cross sections over the Boltzmann distribution of energies and compared with the available theoretical and experimental results for the temperature range 10-1000 K. Investigation of the channel-specific reaction attributes shows that the H abstraction (CH+ destruction) channel is highly favored over the H exchange channel. The effect of rotational and vibrational excitations of the CH+ reagent on the dynamics is also studied. The resonances formed during the course of the reaction are also identified by calculating the transition state spectrum and characterized in terms of the eigenfunctions and lifetimes. More than 260 vibrational levels are obtained and their eigenfunctions are calculated, which are represented in terms of the nodal assignments and the eigenenergies. They reveal both the local and hyperspherical behavior for the bound and quasibound states of the CH2+ complex in the ground 1 2A' surface. The lifetime analysis of the quasibound states indicates that the CH2+ resonances survive for as long as ∼400 fs at high energies (E ∼ 2.0 eV) and are expected to decay faster with further increasing energy. Finally, the type of mechanism for the formation of the product (C+ + H2) is elucidated.
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Busby L, Brown I, Mwango G, Rawlings-Fein M, Sundaram P, Mutch C, Rehani B, Dillon W. RISE (Radiology International Student Education): creation and
utilization of virtual online classroom for global radiology
education. Ann Glob Health 2016. [DOI: 10.1016/j.aogh.2016.04.141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Choughule A, Sharma R, Trivedi V, Thavamani A, Noronha V, Joshi A, Desai S, Chandrani P, Sundaram P, Utture S, Jambhekar N, Gupta S, Aich J, Prabhash K, Dutt A. Coexistence of KRAS mutation with mutant but not wild-type EGFR predicts response to tyrosine-kinase inhibitors in human lung cancer. Br J Cancer 2014; 111:2203-4. [PMID: 25117816 PMCID: PMC4260019 DOI: 10.1038/bjc.2014.401] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
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Tammam S, Sampaleanu LM, Koo J, Sundaram P, Ayers M, Chong PA, Forman-Kay JD, Burrows LL, Howell PL. Characterization of the PilN, PilO and PilP type IVa pilus subcomplex. Mol Microbiol 2011; 82:1496-514. [PMID: 22053789 DOI: 10.1111/j.1365-2958.2011.07903.x] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Type IVa pili are bacterial nanomachines required for colonization of surfaces, but little is known about the organization of proteins in this system. The Pseudomonas aeruginosa pilMNOPQ operon encodes five key members of the transenvelope complex facilitating pilus function. While PilQ forms the outer membrane secretin pore, the functions of the inner membrane-associated proteins PilM/N/O/P are less well defined. Structural characterization of a stable C-terminal fragment of PilP (PilP(Δ71)) by NMR revealed a modified β-sandwich fold, similar to that of Neisseria meningitidis PilP, although complementation experiments showed that the two proteins are not interchangeable likely due to divergent surface properties. PilP is an inner membrane putative lipoprotein, but mutagenesis of the putative lipobox had no effect on the localization and function of PilP. A larger fragment, PilP(Δ18-6His), co-purified with a PilN(Δ44)/PilO(Δ51) heterodimer as a stable complex that eluted from a size exclusion chromatography column as a single peak with a molecular weight equivalent to two heterotrimers with 1:1:1 stoichiometry. Although PilO forms both homodimers and PilN-PilO heterodimers, PilP(Δ18-6His) did not interact stably with PilO(Δ51) alone. Together these data demonstrate that PilN/PilO/PilP interact directly to form a stable heterotrimeric complex, explaining the dispensability of PilP's lipid anchor for localization and function.
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Sundaram RK, Hurwitz I, Matthews S, Hoy E, Kurapati S, Crawford C, Sundaram P, Durvasula RV. Expression of a functional single-chain antibody via Corynebacterium pseudodiphtheriticum. Eur J Clin Microbiol Infect Dis 2008; 27:617-22. [PMID: 18322717 DOI: 10.1007/s10096-008-0483-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2007] [Accepted: 02/01/2008] [Indexed: 11/24/2022]
Abstract
Antibody-based therapeutics are effective against conditions ranging from acute infections to malignancy. They may prove crucial in combating bioterrorism and responding to drug-resistant and emerging pathogens. At present the cost of producing therapeutic monoclonal antibodies is between $1,000 to $6,000 per gram. The need to administer antibodies parenterally at frequent intervals further drives the cost of this treatment. Here we present an antibody delivery system, termed paratransgenesis, with the potential to overcome these limitations. The paratransgenic approach involves genetically transforming a commensal or symbiont bacterium to express foreign molecules that target pathogens. We describe transformation of Corynebacterium pseudodiptheriticum, a commensal bacterium found in the human respiratory tract, to express a murine single-chain antibody binding progesterone. The antibody was functional and bound specifically to progesterone in a concentration-dependent manner. This marker antibody system is the precursor to development of expression systems producing recombinant humanized single-chain antibodies. Studies are in progress evaluating fitness, transgene stablility, and pathogenecity of the genetically engineered C. pseudodiptheriticum. We anticipate developing a repertoire of expressed molecules targeting infectious agents and surface epitopes of pulmonary mass lesions. If expression systems for anti-pathogen molecules in C. pseudodiptheriticum and other respiratory commensal bacteria can be optimized, these bacteria have the potential for a range of therapeutic and prophylactic applications.
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Sundaram P, Zomorodian A, Beaulieu C, Napel S. Colon polyp detection using smoothed shape operators: preliminary results. Med Image Anal 2007; 12:99-119. [PMID: 17910934 DOI: 10.1016/j.media.2007.08.001] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2007] [Revised: 07/25/2007] [Accepted: 08/03/2007] [Indexed: 10/22/2022]
Abstract
Computer-aided detection (CAD) algorithms identify locations in computed tomographic (CT) images of the colon that are most likely to contain polyps. Existing CAD methods treat the CT data as a voxelized, volume image. They estimate a curvature-based feature at the mucosal surface voxels. However, curvature is a smooth notion, while our data are discrete and noisy. As a second order differential quantity, curvature amplifies noise. In this paper, we present the smoothed shape operators method (SSO), which uses a geometry processing approach. We extract a triangle mesh representation of the colon surface, and estimate curvature on this surface using the shape operator. We then smooth the shape operators on the surface iteratively. Throughout, we use techniques explicitly designed for discrete geometry. All our computation occurs on the surface, rather than in the voxel grid. We evaluate our algorithm on patient data and provide free-response receiver-operating characteristic performance analysis over all size ranges of polyps. We also provide confidence intervals for our performance estimates. We compare our performance with the surface normal overlap (SNO) method for the same data. A preliminary evaluation of our method on 35 patients yielded the following results (polyp diameter range; sensitivity; false positives/case): (10mm; 100%; 17.5), (5-10 mm; 89.7%, 21.23), (<5 mm; 59.1%; 23.9) and (overall; 80.3%; 23.9). The evaluation of the SNO method yielded: (10 mm; 75%; 17.5), (5-10 mm; 43.1%; 21.23), (<5 mm; 15.9%; 23.9) and (overall; 38.5%; 23.9).
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Kasinathan C, Gandhi N, Ramaprasad P, Sundaram P, Ramasubbu N. Tyrosine sulfation of statherin. Int J Biol Sci 2007; 3:237-41. [PMID: 17389930 PMCID: PMC1820877 DOI: 10.7150/ijbs.3.237] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2006] [Accepted: 02/27/2007] [Indexed: 12/02/2022] Open
Abstract
Tyrosylprotein sulfotransferase (TPST), responsible for the sulfation of a variety of secretory and membrane proteins, has been identified and characterized in submandibular salivary glands (William et al. Arch Biochem Biophys 1997; 338: 90-96). In the present study we demonstrate the sulfation of a salivary secretory protein, statherin, by the tyrosylprotein sulfotransferase present in human saliva. Optimum statherin sulfation was observed at pH 6.5 and at 20 mm MnCl2. Increase in the level of total sulfation was observed with increasing statherin concentration. The Kmvalue of tyrosylprotein sulfotransferase for statherin was 40 μM. Analysis of the sulfated statherin product on SDS-polyacrylamide gel electrophoresis followed by autoradiography revealed 35S-labelling of a 5 kDa statherin. Further analysis of the sulfated statherin revealed the sulfation on tyrosyl residue. This study is the first report demonstrating tyrosine sulfation of a salivary secretory protein. The implications of this sulfation of statherin in hydroxyapatite binding and Actinomyces viscosus interactions are discussed.
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Kasinathan C, Ramaprasad P, Sundaram P. Identification and characterization of tyrosylprotein sulfotransferase from human saliva. Int J Biol Sci 2005; 1:141-5. [PMID: 16244708 PMCID: PMC1262495 DOI: 10.7150/ijbs.1.141] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2005] [Accepted: 10/12/2005] [Indexed: 11/05/2022] Open
Abstract
Tyrosylprotein sulfotransferase (TPST), the enzyme responsible for the sulfation of tyrosine residues, has been identified and characterized in submandibular salivary glands previously (William et al. Arch Biochem Biophys 338: 90-96). Tyrosylprotein sulfotransferase catalyses the sulfation of a variety of secretory and membrane proteins and is believed to be present only in the cell. In the present study, this enzyme was identified for the first time in human saliva. Analysis of human saliva and parotid saliva for the presence of tyrosylprotein sulfotransferase revealed tyrosine sulfating activity displayed by both whole saliva and parotid saliva at pH optimum of 6.8. In contrast to tyrosylprotein sulfotransferase isolated from submandibular salivary glands, salivary enzyme does not require the presence of Triton X-100, NaF and 5'AMP for maximal activity. Similar to the submandibular TPST, the enzyme from saliva also required MnCl2 for its activity. Maximum TPST activity was observed at 20mM MnCl2. The enzyme from saliva was immunoprecipitated and purified by immunoaffinity column using anti-TPST antibody. Affinity purified salivary TPST showed a single band of 50-54 kDa. This study is the first report characterizing a tyrosylprotein sulfotransferase in a secretory fluid.
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Sundaram P, Joshi JM. Tracheobronchomegaly associated tracheomalacia: analysis by sleep study. THE INDIAN JOURNAL OF CHEST DISEASES & ALLIED SCIENCES 2004; 46:47-9. [PMID: 14870869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/28/2023]
Abstract
Tracheobronchomegaly (TBM) occasionally may progress to extensive tracheomalacia which leads to respiratory failure. Spirometry, dynamic expiratory multidetector computed tomography (CT), bronchoscopy are used to diagnose patients of suspected tracheobronchomalacia. We used the technique of night-time monitoring of respiratory variables to show the presence of respiratory abnormalities during sleep and which was corrected by applying nasal continuous positive airway pressure (CPAP). The study showed the presence of both apnoea and hypopnoeas, which were obstructive in nature with an apnoea-hypopnoea index (AHI) of 11, no snoring and associated oxygen desaturation of 75 per cent. A second overnight study with nasal continuous positive airway pressure at a critical pressure of 8 cm, the AHI decreased to 3 along with no drop in oxygen saturation. This non-invasive technique should be considered as a diagnostic tool in tracheobronchomalacia and to know the outcome of CPAP, surgical or stent therapy in this condition.
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Kolekar S, Sundaram P, Joshi JM. Unusual diagnostic aid for a common tropical disease. THE INDIAN JOURNAL OF CHEST DISEASES & ALLIED SCIENCES 2003; 45:257-9. [PMID: 12962460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/21/2023]
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Singh R, Sundaram P, Joshi JM. Upper lobe fibrosis in ulcerative colitis. THE JOURNAL OF THE ASSOCIATION OF PHYSICIANS OF INDIA 2003; 51:515-7. [PMID: 12974439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/04/2023]
Abstract
We report a case of ulcerative colitis where chest radiograph and high-resolution computed tomography (HRCT) of the lungs revealed bilateral upper lobe fibrosis, which was misdiagnosed and treated as pulmonary tuberculosis. The diagnosis of ulcerative colitis was confirmed by sigmoidoscopy and rectal biopsy.
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Bhat SP, Sundaram P, Joshi JM. Recurrent pneumothorax in a 28-year-old woman. THE INDIAN JOURNAL OF CHEST DISEASES & ALLIED SCIENCES 2002; 44:255-7. [PMID: 12437239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/27/2023]
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Sundaram P, Kamat R, Joshi JM. Flour mill lung: a pneumoconiosis of mixed aetiology. THE INDIAN JOURNAL OF CHEST DISEASES & ALLIED SCIENCES 2002; 44:199-201. [PMID: 12206482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/19/2023]
Abstract
We report two cases of mixed dust fibrosis which occurred in the setting of poorly ventilated flour mills where various kinds of grain, chiefly wheat, were ground using stones whose silica content was analysed to be greater than 80 percent. While one patient was a non-smoker and the other was an ex-smoker, both cooked on kerosene stoves in the same room. We propose the term 'Flour mill lung' for this form of pneumoconiosis. A larger study would be required to establish the entity and its incidence among flour mill workers.
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Bhat S, Kamble RT, Sundaram P, Joshi JM. Transdiaphragmatic extension of hepatic hydatid cyst. THE INDIAN JOURNAL OF CHEST DISEASES & ALLIED SCIENCES 2002; 44:191-4. [PMID: 12206480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
Abstract
Transdiaphragmatic extension of hydatid cyst (HC) or cystic echinococcosis (CE) of the liver is a rare phenomenon. We report a case that presented as a right middle lobe consolidation. The diagnosis of transdiaphragmatic extension of hepatic hydatid cyst was suspected on CT scan of the chest and abdomen, and confirmed operatively. A successful outcome was achieved by a combination of pre- and post-operative albendazole therapy combined with surgery.
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Shah DV, Bhat SP, Sundaram P, Joshi JM. Lung abscess with neck swelling. THE INDIAN JOURNAL OF CHEST DISEASES & ALLIED SCIENCES 2002; 44:117-9. [PMID: 12026250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
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Sheoran AS, Timoney JF, Tinge SA, Sundaram P, Curtiss R. Intranasal immunogenicity of a Deltacya Deltacrp-pabA mutant of Salmonella enterica serotype Typhimurium for the horse. Vaccine 2001; 19:3591-9. [PMID: 11348727 DOI: 10.1016/s0264-410x(01)00072-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
The aim of this study was to investigate the intranasal immunogenicity for the horse of a Deltacya Deltacrp-pabA mutant (MGN-707) of Salmonella enterica serotype Typhimurium (S. typhimurium). MGN-707 caused no sign of disease, was not detected in feces and a single administration induced strong Salmonella-specific serum and nasal mucosal antibody responses. All ponies had made strong salmonella specific serum IgGa, IgGb, IgA and IgM antibody responses by day 25 after the first immunization. IgM responses to salmonella lipopolysaccharide (LPS) were short lived whereas salmonella specific serum IgGa and IgGb persisted at high levels in all ponies until 83 and 140 days, respectively. Specific nasal mucosal antibody responses dominated by IgA and IgM were evident by day 25 in all ponies except one in which only specific IgGa and IgGb were evident. Specific nasal mucosal IgA persisted in most ponies until day 69. A second immunization on day 140 boosted antibody responses, and stimulated a strong nasal mucosal IgA response in the pony that failed to make an IgA response after primary immunization. At the termination of the experiment, IgA and IgGb dominated jejunal antibody responses whereas vaginal responses were mainly IgA. The latter response unequivocally confirms the existence of a common mucosal immune system in equids. The results indicate that a S. typhimurium Deltacya Deltacrp-pabA mutant has potential as an intranasal vaccine against salmonellosis in the horse.
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Sheoran AS, Timoney JF, Tinge SA, Sundaram P, Curtiss R. Intranasal immunogenicity of a Delta cya Delta crp-pabA mutant of Salmonella enterica serotype Typhimurium for the horse. Vaccine 2001; 19:3787-95. [PMID: 11395214 DOI: 10.1016/s0264-410x(01)00091-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The aim of this study was to investigate the intranasal immunogenicity for the horse of a Deltacya Deltacrp-pabA mutant (MGN-707) of Salmonella enterica serotype Typhimurium (S. typhimurium). MGN-707 caused no sign of disease, was not detected in feces and a single administration induced strong Salmonella-specific serum and nasal mucosal antibody responses. All ponies had made strong salmonella specific serum IgGa, IgGb, IgA and IgM antibody responses by day 25 after the first immunization. IgM responses to salmonella lipopolysaccharide (LPS) were short lived whereas salmonella specific serum IgGa and IgGb persisted at high levels in all ponies until 83 and 140 days, respectively. Specific nasal mucosal antibody responses dominated by IgA and IgM were evident by day 25 in all ponies except one in which only specific IgGa and IgGb were evident. Specific nasal mucosal IgA persisted in most ponies until day 69. A second immunization on day 140 boosted antibody responses, and stimulated a strong nasal mucosal IgA response in the pony that failed to make an IgA response after primary immunization. At the termination of the experiment, IgA and IgGb dominated jejunal antibody responses whereas vaginal responses were mainly IgA. The latter response unequivocally confirms the existence of a common mucosal immune system in equids. The results indicate that a S. typhimurium Deltacya Deltacrp-pabA mutant has potential as an intranasal vaccine against salmonellosis in the horse.
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Banerjee S, Sundaram P, Joshi JM. Chronic pulmonary suppuration. Postgrad Med J 2001; 77:272; discussion 282-3. [PMID: 11264503 PMCID: PMC1741998 DOI: 10.1136/pmj.77.906.272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Ladhani S, Kamble RT, Sundaram P, Joshi JM. Non responding pneumonia with skin lesions. THE INDIAN JOURNAL OF CHEST DISEASES & ALLIED SCIENCES 2001; 43:115-7. [PMID: 11529410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
Abstract
Sweet's syndrome (acute febrile neutrophilic dermatitis) is characterised by classical skin lesions accompanied by fever and malaise. Systemic involvement may be present and lung involvement in Sweet's syndrome has been reported in the form of bilateral pulmonary infiltrates, bronchiolitis obliterans organising pneumonia and pleural effusion. There are dense papillary neutrophilic infiltrates on histopathology. We present a case of Sweets' syndrome with left lower lobe consolidation and persistent fever which was non-responsive to antibiotics but showed clinical improvement with clearing of radiological opacities on oral steroid therapy.
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