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Loveday B, Mittal A, Phillips A, Windsor JA. HP28P�MINIMALLY INVASIVE MANAGEMENT OF PANCREATIC ABSCESS, PSEUDOCYST AND NECROSIS: A SYSTEMATIC REVIEW OF CURRENT GUIDELINES. ANZ J Surg 2009. [DOI: 10.1111/j.1445-2197.2009.04920_28.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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102
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Perlmutter A, Mittal A, Menter A. Tuberculosis and tumour necrosis factor-α inhibitor therapy: a report of three cases in patients with psoriasis. Comprehensive screening and therapeutic guidelines for clinicians. Br J Dermatol 2009; 160:8-15. [DOI: 10.1111/j.1365-2133.2008.08891.x] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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103
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Agrawal T, Vats V, Wallace P, Singh A, Salhan S, Mittal A. Recruitment of myeloid and plasmacytoid dendritic cells in cervical mucosa during Chlamydia trachomatis infection. Clin Microbiol Infect 2009; 15:50-9. [DOI: 10.1111/j.1469-0691.2008.02113.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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104
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Sharma PK, Mittal A, Bajpai M. A study of oleic acid oily base for the tropical delivery of dexamethasone microemulsion formulations. ASIAN JOURNAL OF PHARMACEUTICS 2009. [DOI: 10.4103/0973-8398.56299] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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105
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Bhengraj A, Dar SA, Talwar G, Mittal A. Potential of a novel polyherbal formulation BASANT for prevention of Chlamydia trachomatis infection. Int J Antimicrob Agents 2008; 32:84-8. [DOI: 10.1016/j.ijantimicag.2008.02.010] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2008] [Revised: 02/12/2008] [Accepted: 02/15/2008] [Indexed: 11/17/2022]
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106
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Dhingra VK, Rajpal S, Mittal A, Gupta UA, Arora VK. Tuberculosis of the ilium: a case report. THE JOURNAL OF COMMUNICABLE DISEASES 2008; 40:79-82. [PMID: 19127675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
A twenty year old man presented with pain in the upper part of right hip. CT scan showed multiple osteolytic areas in the right ilium, suggesting malignancy. CT guided needle biopsy was done and diagnosis of tuberculosis was made. The patient was cured with medical management only. Isolated tuberculosis of the ilium is an extremely rare condition. It is important to have a high clinical suspicion to diagnose early and manage the patient without surgical intervention.
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Mittal A, Das D, Iyer N, Nagaraj J, Gupta M. Masseter cysticercosis – a rare case diagnosed on ultrasound. Dentomaxillofac Radiol 2008; 37:113-6. [DOI: 10.1259/dmfr/31885135] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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108
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Bharatam P, Patel D, Adane L, Mittal A, Sundriyal S. Modeling and Informatics in Designing Anti-Diabetic Agents. Curr Pharm Des 2007; 13:3518-30. [DOI: 10.2174/138161207782794239] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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109
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Dutta R, Jha R, Gupta S, Gupta R, Salhan S, Mittal A. Seroprevalence of antibodies to conserved regions of Chlamydia trachomatis heat shock proteins 60 and 10 in women in India. Br J Biomed Sci 2007; 64:78-83. [PMID: 17633143 DOI: 10.1080/09674845.2007.11732761] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Persistent, untreated chlamydial infection causes chronic stimulation of the host immune system against immunogenic antigens such as chlamydial heat shock proteins (cHSP) 60 and 10. In order to find the seroprevalence of antibodies to cHSPs, enzyme-linked immunosorbent assay (ELISA) is performed using specific peptide sequences to measure antibody response against major outer membrane protein (MOMP), cHSP60 and cHSP10 in patient sera. In this study, 255 patients attending the gynaecology out-patient department (March 2004 to August 2005) of Safdarjung Hospital were enrolled. Of these patients, 107 were diagnosed with cervicitis while 52 had pelvic inflammatory disease (PID)/infertility. Chlamydia trachomatis infection in endocervical specimens is diagnosed by a direct fluorescence assay (DFA) and the polymerase chain reaction (PCR). In 75 (29.4%) of the C. trachomatis-positive women, 50 (66.7%) were ELISA positive for MOMP 48 (64.0%) were positive for cHSP60 and 46 (61.3%) were positive for cHSP10. The anti-MOMP index correlated positively with anti-cHSP60 (R = 0.522, P < 0.01) and anti-cHSP10 (R = 0.286, P < 0.05). Antibody titre for MOMP was significantly higher than that for cHSP60 (1:5; P < 0.01 and 1:25; P < 0.05). Moreover, patients with PID/infertility showed significantly higher antibody titres for cHSP60 and cHSP10 when compared to patients with cervicitis at dilutions of 1 in 50, 1 in 250, 1 in 1250 (P < 0.001) and at 1 in 6250 (P < 0.01).
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Agrawal T, Vats V, Salhan S, Mittal A. Mucosal and peripheral immune responses to chlamydial heat shock proteins in women infected with Chlamydia trachomatis. Clin Exp Immunol 2007; 148:461-8. [PMID: 17493018 PMCID: PMC1941927 DOI: 10.1111/j.1365-2249.2007.03357.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Most of the studies on 60-kDa and 10-kDa chlamydial heat shock proteins (HSPs) to date have been carried out with blood lymphocytes or serum antibody responses, which do not provide a clear picture of the actual pathogenesis as they do not differentiate primary infection from recurrent infection. Thus, in the present study induction of the immune response was evaluated by studying lymphoproliferation of both cervical and peripheral lymphocytes to synthetic peptides of cHSP60, cHSP10 and major outer membrane protein (MOMP) antigen. In addition, cervical antibody prevalence to MOMP antigen, cHSP60 and cHSP10 and cytokine levels in cervical washes was also determined. Positive proliferative responses of cervical lymphocytes to cHSP10 peptide were significantly higher (P < 0.05) in women with recurrent infections and that to MOMP antigen were significantly higher in primary infection. On proliferation of PBMCs with the above antigens, no significant difference was observed between primary and recurrent infection. Prevalence of cervical IgG and IgA antibodies to Chlamydia trachomatis was significantly higher (P < 0.05) during primary infection than recurrent infections. In contrast, prevalence of IgG and IgA antibodies to cHSP10 and IgG antibodies to cHSP60 was higher during recurrent infections than primary infections. Interferon (IFN)-gamma levels were significantly higher in cervical washes of women with recurrent infection and correlated strongly with cHSP60 antibody titres. Our data thus suggest that mucosal responses are more appropriate in understanding the pathogenesis of chlamydial infection and IFN-gamma could be involved in the modulation of immune responses towards chlamydial infection directly, by causing acute inflammation, or indirectly through modulation of HSP expression.
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Gujar GT, Kalia V, Kumari A, Singh BP, Mittal A, Nair R, Mohan M. Helicoverpa armigera baseline susceptibility to Bacillus thuringiensis Cry toxins and resistance management for Bt cotton in India. J Invertebr Pathol 2007; 95:214-9. [PMID: 17475275 DOI: 10.1016/j.jip.2007.03.011] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2007] [Accepted: 03/14/2007] [Indexed: 11/17/2022]
Abstract
Transgenic cotton that produces insecticidal proteins from Bacillus thuringiensis (Bt), often referred to as Bt cotton, is widely grown in many countries. Bt cotton with a single cry1A gene and stacked also with cry2A gene has provided satisfactory protection against the damage by the lepidopteran bollworms, especially the cotton bollworm, Helicoverpa armigera (Hübner) which is considered as a key pest. The baseline susceptibility of the larvae of H. armigera to Cry1Ac and other toxins carried out in many countries has provided a basis for monitoring resistance. There is no evidence of development of field-level resistance in H. armigera leading to the failure of Bt cotton crop anywhere in the world, despite the fact that Bt cotton was grown on the largest ever area of 12.1 million hectares in 2006 and its cumulative cultivation over the last 11 years has surpassed the annual cotton area in the world. Nevertheless, the Bt resistance management has become a necessity to sustain Bt cotton and other transgenic crops in view of potential of the target insects to evolve Cry toxin resistance.
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Bhatia V, Sapra R, Mittal A, Pandey A, Gupta R, Kachru R, Arora P, Parida A, Singh G, Kaul U. Mobile intracardiac thrombi: clinical scenarios and management strategies. Indian Heart J 2007; 59:284-287. [PMID: 19124942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023] Open
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113
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Mittal A, Singh J, Ahluwalia SK. Effect of maternal factors on nutritional status of 1-5-year-old children in urban slum population. Indian J Community Med 2007. [DOI: 10.4103/0970-0218.37691] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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114
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Mittal A, Sivaram S, Baskaran D. Unfavorable Coordination of Copper with Methyl Vinyl Ketone in Atom Transfer Radical Polymerization. Macromolecules 2006. [DOI: 10.1021/ma060365p] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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115
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Mukherjee I, Mittal A. Bioremediation of endosulfan using Aspergillus terreus and Cladosporium oxysporum. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2005; 75:1034-40. [PMID: 16400595 DOI: 10.1007/s00128-005-0853-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2005] [Accepted: 05/26/2005] [Indexed: 05/06/2023]
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116
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Reddy BS, Rastogi S, Das B, Salhan S, Verma S, Mittal A. Cytokine expression pattern in the genital tract of Chlamydia trachomatis positive infertile women - implication for T-cell responses. Clin Exp Immunol 2004; 137:552-8. [PMID: 15320905 PMCID: PMC1809142 DOI: 10.1111/j.1365-2249.2004.02564.x] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Human genital infection caused by Chlamydia trachomatis is thought to be immunologically mediated, resulting in local recruitment of lymphocyte subsets and inducing the production of cytokines. Little information is available about the role of lymphocyte recruitment and the regulation of cytokine production in the genital tract of C. trachomatis positive infertile women. We have evaluated the recruitment of lymphocyte subsets in the genital tract and production of Th1/Th2 cytokines in cervical secretions and laparoscopic specimens from the fallopian tubes of C. trachomatis positive infertile women (n = 17) and compared them with controls, viz. C. trachomatis negative infertile women (n = 20) using ELISA and flow cytometry. None of these patients were found to be infected either with Candida sps., bacterial vaginosis, Trichomonas vaginalis, Neisseria gonorrhoeae, Mycoplasma hominis or Ureaplasma urealyticum in the cervix. Flow cytometric analysis of cervical secretions in Chlamydia positive women revealed recruitment of both CD4 and CD8 lymphocytes to the genital tract was up-regulated and a variation in the production rates of different cytokines in cervical secretions and fallopian tube was observed. We found that the immune responses in cervical secretions were of Th0 type, since all the analysed cytokines, viz. IFN-gamma, TNF-alpha, IL-10 and IL-12 were up-regulated. As, both CD4 and CD8 cells contribute to the production of IFN-gamma and IL-10, these results suggest that along with CD4 cells, CD8 lymphocytes also may be important for local regulation of Th1/Th2 responses in the genital tract during C. trachomatis infection.
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117
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Vats V, Rastogi S, Kumar A, Ahmed M, Singh V, Mittal A, Jain RK, Singh J. Detection of Chlamydia trachomatis by polymerase chain reaction in male patients with non-gonococcal urethritis attending an STD clinic. Sex Transm Infect 2004; 80:327-8. [PMID: 15295141 PMCID: PMC1744867 DOI: 10.1136/sti.2003.008839] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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118
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Larsen NA, de Prada P, Deng SX, Mittal A, Braskett M, Zhu X, Wilson IA, Landry DW. Crystallographic and biochemical analysis of cocaine-degrading antibody 15A10. Biochemistry 2004; 43:8067-76. [PMID: 15209502 DOI: 10.1021/bi049495l] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Catalytic antibody 15A10 hydrolyzes the benzoyl ester of cocaine to form the nonpsychoactive metabolites benzoic acid and ecgonine methylester. Here, we report biochemical and structural studies that characterize the catalytic mechanism. The crystal structure of the cocaine-hydrolyzing monoclonal antibody (mAb) 15A10 has been determined at 2.35 A resolution. The binding pocket is fairly shallow and mainly hydrophobic but with a cluster of three hydrogen-bond donating residues (TrpL96, AsnH33, and TyrH35). Computational docking of the transition state analogue (TSA) indicates that these residues are appropriately positioned to coordinate the phosphonate moiety of the TSA and, hence, form an oxyanion hole. Tyrosine modification of the antibody with tetranitromethane reduced hydrolytic activity to background level. The contribution from these and other residues to catalysis and TSA binding was explored by site-directed mutagenesis of 15A10 expressed in a single chain fragment variable (scFv) format. The TyrH35Phe mutant had 4-fold reduced activity, and TrpL96Ala, TrpL96His, and AsnH33Ala mutants were all inactive. Comparison with an esterolytic antibody D2.3 revealed a similar arrangement of tryptophan, asparagine, and tyrosine residues in the oxyanion hole that stabilizes the transition state for ester hydrolysis. Furthermore, the crystal structure of the bacterial cocaine esterase (cocE) also showed that the cocE employs a tyrosine hydroxyl in the oxyanion hole. Thus, the biochemical and structural data are consistent with the catalytic antibody providing oxyanion stabilization as its major contribution to catalysis.
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Chinnasamy A, Sung WK, Mittal A. Protein structure and fold prediction using tree-augmented naive Bayesian classifier. PACIFIC SYMPOSIUM ON BIOCOMPUTING. PACIFIC SYMPOSIUM ON BIOCOMPUTING 2004:387-98. [PMID: 14992519 DOI: 10.1142/9789812704856_0037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
For determining the structure class and fold class of Protein Structure, computer-based techniques have became essential considering the large volume of the data. Several techniques based on sequence similarity. Neural Networks, SVMs, etc have been applied. This paper presents a framework using the Tree-Augmented Networks (TAN) based on the theory of learning Bayesian networks but with less restrictive assumptions than the naive Bayesian networks. In order to enhance TAN's performance, pre-processing of data is done by feature discretization and post-processing is done by using Mean Probability Voting (MPV) scheme. The advantage of using Bayesian approach over other learning methods is that the network structure is intuitive. In addition, one can read off the TAN structure probabilities to determine the significance of each feature (say, Hydrophobicity) for each class, which help to further understand the mystery of protein structure. Experimental results and comparison with other works over two databases show the effectiveness of our TAN based framework. The idea is implemented as the BAYESPROT web server and it is available at http://www-appn.comp.nus.edu.sg/-bioinfo/bayesprot/Default.htm.
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Agrawala PK, Mittal A, Bala M, Goel HC. Mitochondrial involvement in RP-1 mediated apoptosis in U 87 cells. Biomed Pharmacother 2004; 58:129-35. [PMID: 14992795 DOI: 10.1016/j.biopha.2003.10.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2003] [Accepted: 10/28/2003] [Indexed: 11/29/2022] Open
Abstract
The aqueous extract of RP-1, which rendered significant protection to whole body irradiated mice, was found to be tumoricidal. The mode of cytotoxic action of RP-1 attributing to its antitumor action was investigated in U 87 cells with special reference to mitochondrial contribution. RP-1 doses above 0.5 microg/ml reduced colonogenic survival (maximum reduction of 62% at 10 microg/ml) and increased the free radical generation, G2/M fraction and apoptotic frequency. Prolonged exposure to RP-1 rendered significant increase in mitochondrial mass. It also reduced mitochondrial membrane potential in a dose and time dependent manner that was restored by verapamil, a Ca+2 channel blocker. Mitochondrial anti-apoptotic proteins Bcl-2 and Hsp-70 levels were also reduced by RP-1 treatment in a dose and time dependent manner. The ability of RP-1 to disrupt mitochondrial structure and function could be responsible for its cytotoxic action.
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Mittal A, Windsor J, Woodfield J, Casey P, Lane M. Matched study of three methods for palliation of malignant pyloroduodenal obstruction. Br J Surg 2004; 91:205-9. [PMID: 14760669 DOI: 10.1002/bjs.4396] [Citation(s) in RCA: 151] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
BACKGROUND The traditional management of pyloroduodenal obstruction is open gastrojejunostomy (OGJ). More recently laparoscopic gastrojejunostomy (LGJ) and endoscopic stenting (ES) have been introduced. The aim of this study was to evaluate the three approaches to the palliation of malignant pyloroduodenal obstruction. METHODS All patients who underwent surgery (open and laparoscopic) for malignant pyloroduodenal obstruction at Auckland City Hospital between 1989 and 2002 inclusive were identified from International Classification of Diseases (ICD) 10 codes and from the Otago Surgical Audit Database. Patients who had an endoscopic stent were identified from the Endoscribe database. A review of medical records was conducted and data recorded in a structured pro forma. There were 181 patients with malignant pyloroduodenal obstruction of whom 56 patients had OGJ, 14 had LGJ and 16 had ES. Patients in the LGJ and ES groups were matched with those who underwent OGJ with respect to American Society of Anesthesiologists (ASA) grade (I-V), age (within 10 years) and level of obstruction (pylorus, first part of duodenum D1, D2, D3 and D4). The primary outcomes compared between the groups were time to starting free oral fluids and light diet, length of stay and survival. RESULTS There were no significant differences in age, sex, ASA grade and level of obstruction between the matched OGJ (n=16), LGJ (n=14) and ES (n=16) groups. There was a significant reduction in time to starting free oral fluids and light diet, and length of stay after the procedure, in the ES group. Patients who underwent surgical palliation of the obstruction had significantly more complications than those who underwent stenting (P=0.016). There were no significant differences in requirement for biliary drainage either before or after the procedure between the three groups. Survival was shortest in the ES group. CONCLUSION This matched study showed significant advantages for ES compared with OGJ and LGJ in the palliation of malignant pyloroduodenal obstruction.
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Singh V, Salhan S, Das BC, Mittal A. Predominance of Chlamydia trachomatis serovars associated with urogenital infections in females in New Delhi, India. J Clin Microbiol 2003; 41:2700-2. [PMID: 12791909 PMCID: PMC156538 DOI: 10.1128/jcm.41.6.2700-2702.2003] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Screening for Chlamydia trachomatis was done for 280 endocervical swab samples by PCR specific for endogenous plasmid. Age dependency was seen in symptomatic patients, with a high chlamydial prevalence rate (28%) found in younger women. Genotyping by restriction fragment length polymorphism analysis of omp1 PCR-positive samples showed serovars D, E, and F to be the most prevalent.
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Mittal A. High frequency of antibodies to syphilis and HIV in hepatitis C virus positive blood donors may reflect its sexual transmission in this region. Sex Transm Infect 2003; 79:170-1. [PMID: 12690148 PMCID: PMC1744646 DOI: 10.1136/sti.79.2.170-a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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124
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Mitra A, Dubey A, Mittal A. Role of anti-depressant fluoxetine in the puva treatment of psoriasis vulgaris. Indian J Dermatol Venereol Leprol 2003; 69:168-9. [PMID: 17642869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Severity of Psoriasis Vulgaris is known to be modified by psychological stress. The objective of this study was to evaluate the role of Fluoxetine in the PUVA treatment of Psoriasis. Twenty patients with progressive disease having more than thirty per cent body area involvement were included in a randomized, double blinded, placebo-controlled, age and sex matched study. All patients were on PUVA treatment; half of the patients were given Fluoxetine 20 mgms daily whereas the other ten were given placebo. Assessment was done by Psoriasis Area and Severity Index (PASI) scoring after every 5 exposures of PUVA treatment till 20 treatments. All ten patients who took Fluoxetine along with PUVA treatment showed better response and quicker remission. Fluoxetine may be used as an adjuvant in PUVA treatment of Psoriasis.
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Rastogi S, Das B, Salhan S, Mittal A. Effect of treatment for Chlamydia trachomatis during pregnancy. Int J Gynaecol Obstet 2003; 80:129-37. [PMID: 12566185 DOI: 10.1016/s0020-7292(02)00371-5] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVES To screen and treat chlamydial infection in pregnant women in order to assess the effects of therapeutic intervention on the outcome of Chlamydia trachomatis-infected pregnancy. METHODS Enrolled in the study were 350 women in the first to third trimesters of pregnancy. Endocervical swabs were collected for C. trachomatis diagnosis by DFA and PCR. A few STD infections, viz.: Neisseria gonorrhoeae, Candida spp., bacterial vaginosis, Trichomonas vaginalis and Treponema pallidum were ruled out. After excluding 22 patients infected with other sexually transmitted infections, a cohort of 328 pregnant women comprised the study population. Anti-chlamydial treatment (viz.: oral therapy with erythromycin stearate, 500 mg 4 times daily for 7 days) was given to 17 women (group I) and their partners. Fifteen patients of group I were retested by DFA and PCR assay for C. trachomatis infection 2 weeks following therapy. Other Chlamydia-positive patients (n=42) who were lost to follow-up were classified as untreated positive cases (group II) while group III included C. trachomatis negative cases (n=269). Data on obstetric outcome were recorded in a total of 164 cases. Statistical comparison of the data were done using the chi(2)-test and means were compared using Student's t-test. RESULTS Among the 350 pregnant women enrolled initially for the study, C. trachomatis positivity was found to be 18.8% (n=66) in the endocervix by DFA and PCR assay. Co-infection with Candida spp., bacterial vaginosis, T. vaginalis and T. pallidum was 2.0%, 1.7%, 1.7% and 0.5%, respectively. None of the pregnant women was infected with N. gonorrhoeae. Pregnant women at an increased risk of chlamydial infection included those who had multiple births and were in second trimester of pregnancy. Fifteen patients of group I became Chlamydia-negative following treatment. Data on obstetric outcome were recorded in 11, 26 and 127 patients of groups I, II and III, respectively. The mean duration of gestation for premature deliveries was found to be significantly higher in group I in comparison with group II [35.5 vs. 33.1 weeks (P<0.05)], thereby showing an improved effect of treatment on pregnancy outcome. The mean of low birth weight births was higher in group I compared with group II (2200.0 vs. 2113.3 g), however, this was statistically non-significant. Stillbirths were significantly higher among group II in comparison with group III [11.5% vs. 4.7% (chi(2)=1.79; P<0.5)]. No stillbirths were recorded in patients who had taken anti-chlamydial treatment. CONCLUSIONS Our findings suggest that routine screening and treatment of C. trachomatis infection in pregnant women, especially those in high risk groups, should be mandatory to reduce the adverse effects on obstetric outcome.
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