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Mahajan R, Bishnoi A, Manjunath S, Vignesh P, Suri D, Gopal M, Chatterjee D, Jamwal M, De D, Das R, Handa S, Kubba A, Batrani M, Radotra BD. Severe epidermolysis bullosa/Kindler syndrome-like phenotype of an autoinflammatory syndrome in a child. Clin Exp Dermatol 2021; 46:795-799. [PMID: 33625737 DOI: 10.1111/ced.14557] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 01/04/2021] [Accepted: 01/08/2021] [Indexed: 11/26/2022]
Abstract
A 5-year-old boy presented with generalized cutaneous erosions, severe scarring, depigmentation and contractures affecting major joints. The lesions had initially affected his ears, nose, feet, and the genital and ocular mucosa, leading to significant depigmentation, scarring, contractures and mutilation. The whole of the trunk and limbs were involved at the time of presentation, with the exception of some islands of spared skin on the proximal thighs, legs, nipples and external genitalia. Electron microscopy revealed a split in the sublamina densa with the absence of anchoring fibrils, suggestive of dystrophic epidermolysis bullosa (EB). Immunofluorescence antigen mapping demonstrated a broad reticulate pattern of staining with collagen IV, VII, and laminin 332 in the floor of the blister, suggestive of Kindler syndrome. Next-generation sequencing revealed a de novo heterozygous missense mutation (a variant of unknown significance) in exon 22 of the phospholipase-C gamma 2 gene (PLCG2), which resulted in a substitution of serine by asparagine at codon 798 (p.Asp798Ser), a result that was validated using Sanger sequencing. The child was diagnosed with PLCG2-associated antibody deficiency and immune dysregulation (PLAID)/autoinflammation and PLCG2-associated antibody deficiency and immune dysregulation (APLAID) syndrome. The cutaneous and corneal erosions, inflammation and scarring of this magnitude, and the eventual result of death have not been described previously for the PLAID/APLAID spectrum previously. In conclusion, this was an unusual acquired autoinflammatory severe EB-like disease that may be associated with de novo PLCG2 mutation.
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Affiliation(s)
- R Mahajan
- Departments of, Dermatology, Venereology, and Leprology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - A Bishnoi
- Departments of, Dermatology, Venereology, and Leprology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - S Manjunath
- Departments of, Dermatology, Venereology, and Leprology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - P Vignesh
- Department of Pediatric Medicine, Allergy Immunology Unit, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - D Suri
- Department of Pediatric Medicine, Allergy Immunology Unit, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - M Gopal
- Histopathology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - D Chatterjee
- Histopathology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - M Jamwal
- Haematology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - D De
- Departments of, Dermatology, Venereology, and Leprology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - R Das
- Haematology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - S Handa
- Departments of, Dermatology, Venereology, and Leprology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - A Kubba
- Delhi Dermatology Group, New Delhi, India
| | - M Batrani
- Delhi Dermatology Group, New Delhi, India
| | - B D Radotra
- Histopathology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
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Cheng T, Pointer K, Gopal M, Farber A, Jones D, Eberhardt R, Kalish J, Eslami M, Rybin D, Siracuse J. Natural History of Non-operative Management in Asymptomatic Patients with 70%–80% Internal Carotid Artery Stenosis by Duplex Criteria. J Vasc Surg 2020. [DOI: 10.1016/j.jvs.2020.08.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Hebbar KB, Arivalagan M, Pavithra KC, Roy TK, Gopal M, Shivashankara KS, Chowdappa P. Nutritional profiling of coconut (Cocos nucifera L.) inflorescence sap collected using novel coco-sap chiller method and its value added products. Food Measure 2020. [DOI: 10.1007/s11694-020-00516-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Gopal M, Peycelon M, Caldamone A, Chrzan R, El-Ghoneimi A, Olsen H, Leclair MD, Stillebroer A, MacDonald C, Tonnhofer U, Strasser C, Adam A, Spinoit AF, Haid B. Management of ureteropelvic junction obstruction in children-a roundtable discussion. J Pediatr Urol 2019; 15:322-329. [PMID: 31227314 DOI: 10.1016/j.jpurol.2019.05.010] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Accepted: 05/08/2019] [Indexed: 12/13/2022]
Abstract
The investigation, management and follow-up of paediatric ureteropelvic junction obstruction is not standardized. The Young Pediatric Urology Committee of the European Society of Pediatric Urology interviewed five experts in the field on various aspects of management and compared this with published literature.
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Affiliation(s)
- M Gopal
- Department of Paediatric Surgery, Great North Children's Hospital, Newcastle Upon Tyne, UK.
| | - M Peycelon
- Robert-Debré University Hospital (Assistance-Publique Hôpitaux de Paris), Department of Pediatric Surgery and Urology, Reference Center for Rare Diseases (CRMR), Malformations Rares des Voies Urinaires (MARVU), Université Paris Diderot, Sorbonne Paris CitéParis, France; Riley Hospital for Children, Indiana University and Purdue University in Indiana, Indianapolis, IN, USA
| | - A Caldamone
- Division of Pediatric Urology, Hasbro Children's Hospital, Warren Alpert School of Medicine at Brown University, Providence Rhode Island, USA
| | - R Chrzan
- Department of Paediatric Urology, Jagiellonian University Medical College, Krakow, Poland
| | - A El-Ghoneimi
- Robert-Debré University Hospital (Assistance-Publique Hôpitaux de Paris), Department of Pediatric Surgery and Urology, Reference Center for Rare Diseases (CRMR), Malformations Rares des Voies Urinaires (MARVU), Université Paris Diderot, Sorbonne Paris CitéParis, France
| | - H Olsen
- Department of Urology, Aarhus University Hospital, Arhus, Denmark
| | - M-D Leclair
- Department of Paediatric Surgery, Children University Hospital, NANTES, France
| | - A Stillebroer
- Department of Urology, University Medical Centre Groningen, Groningen, the Netherlands
| | - C MacDonald
- Department of Paediatric Surgery, Royal Hospital for Children, Glasgow, UK
| | - U Tonnhofer
- Department of Pediatric Surgery, Medical University Vienna, Austria
| | - C Strasser
- Department of Pediatric Urology, Hospital of the Sisters of Charity, Linz, Austria
| | - A Adam
- The Division of Urology, School of Clinical Medicine, University of the Witwatersrand, Johannesburg, South Africa
| | - A-F Spinoit
- Department of Urology, Ghent University Hospital, Ghent, Belgium
| | - B Haid
- Department of Pediatric Urology, Hospital of the Sisters of Charity, Linz, Austria
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Siriwardena M, Breeding J, Gopal M, Buscher H, MacDonald P, Granger E, Nair P. Haemodynamic Assessment of Patients Supported on Veno-Arterial Membrane Oxygenation with Concurrent Evaluation of Echocardiographic Findings. Heart Lung Circ 2018. [DOI: 10.1016/j.hlc.2018.06.448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Abstract
The urachus is a vestigial remnant of the allantois, which is normally obliterated during fetal life to become the median umbilical ligament, which runs between the urinary bladder and umbilicus in adults. Failure of obliteration leaves a tubular urachal remnant, which may present with disease. We report a unique case of a urachal remnant causing umbilical pain and in-drawing on micturition in a nine-year-old boy. There was no urine discharge from the umbilicus and in-drawing did not occur on defecation. His urinary stream was normal. High frequency ultrasonography revealed a thick band with a narrow, anechoic, fluid filled central channel. Exploration via an infraumbilical curvilinear incision identified a thick urachal band that could be traced to the dome of the bladder. This was excised flush with the bladder. The patient remains well at nine months following surgery with complete cessation of symptoms.
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Affiliation(s)
| | - L McDonald
- Newcastle upon Tyne Hospitals NHS Foundation Trust UK
| | - M Gopal
- Newcastle upon Tyne Hospitals NHS Foundation Trust UK
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Spinoit AF, Radford A, Ashraf J, Gopal M, Subramaniam R. Modified tubularized incised plate urethroplasty in distal hypospadias repair: Stepwise technique with validated functional and cosmetic outcome. J Pediatr Urol 2017; 13:86-87. [PMID: 27887909 DOI: 10.1016/j.jpurol.2016.09.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Accepted: 09/27/2016] [Indexed: 11/19/2022]
Abstract
OBJECTIVE To describe modification of the tubularized incised plate urethroplasty (TIP) for distal hypospadias, and assess its efficacy, and functional and cosmetic outcomes. METHODS A prospective evaluation of a consecutive series of patients operated for primary distal hypospadias was conducted at a tertiary reference center. A standardized modification of the TIP (mTIP) procedure was performed on a 10 French catheter. Clinical data were collected in a dedicated database. Intraoperative variables, postoperative complications and outcomes, by means of uroflowmetries and a validated (HOPE) questionnaire, were assessed. Efficacy was evaluated with the reported complications: functional outcome was evaluated with uroflowmetries and cosmetic assessment by a validated questionnaire (HOPE). A descriptive statistical analysis was performed. RESULTS Of the 112 boys operated between 30/09/2011 and 1/04/2014, 50 completed long-term follow-up with functional and esthetic evaluation, as required for inclusion. Median age at surgery was 25 months (range 14-156); median follow-up time was 21.5 months (range 6-48). Complications requiring re-intervention occurred in 2/50 boys. Uroflowmetry presented a bell-shaped curve in 47/50 boys, and the median HOPE score was 9.5 (range 7.6-10.0). CONCLUSION The mTIP procedure provided satisfactory long-term functional and cosmetic outcomes, as validated by uroflowmetries and standardized questionnaire.
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Affiliation(s)
- A-F Spinoit
- Department of Urology, Ghent University Hospital, Ghent, Belgium
| | - A Radford
- Department of Paediatric Surgery and Urology, Leeds Teaching Hospital, Leeds, UK
| | - J Ashraf
- Department of Paediatric Surgery and Urology, Leeds Teaching Hospital, Leeds, UK
| | - M Gopal
- Department of Paediatric Surgery and Urology, Leeds Teaching Hospital, Leeds, UK
| | - R Subramaniam
- Department of Paediatric Surgery and Urology, Leeds Teaching Hospital, Leeds, UK.
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Padayatchi N, Gopal M, Naidoo R, Werner L, Naidoo K, Master I, O'Donnell MR. Clofazimine in the treatment of extensively drug-resistant tuberculosis with HIV coinfection in South Africa: a retrospective cohort study. J Antimicrob Chemother 2014; 69:3103-7. [PMID: 24986495 DOI: 10.1093/jac/dku235] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND Extensively drug-resistant (XDR) tuberculosis (TB) and HIV coinfection is associated with low cure rates and high mortality. Clofazimine has shown activity in vitro against Mycobacterium tuberculosis, but clinical experience with clofazimine in XDR-TB and HIV coinfection is limited. METHODS This was a retrospective cohort study of adult XDR-TB patients in KwaZulu-Natal, South Africa, treated with either a clofazimine- or non-clofazimine-containing XDR-TB treatment regimen. The primary outcome measure was TB culture conversion at 6 months. Survival analysis and multivariate logistic regression compared time to event in different strata and identified risk factors for TB culture conversion. RESULTS Between August 2009 and July 2011, eligible XDR-TB patients (n = 85) were initiated on treatment for XDR-TB. Most patients (86%) were HIV-infected and receiving antiretroviral therapy (90%). Patients receiving a clofazimine-containing regimen (n = 50) had a higher percentage of culture conversion (40%) compared with patients (n = 35) receiving a non-clofazimine regimen (28.6%). On multivariate analysis, there was a 2-fold increase in TB culture conversion at 6 months (hazard rate ratio 2.54, 95% CI 0.99-6.52, P = 0.05) in the group receiving a clofazimine-containing regimen. Adverse effects due to clofazimine were minor and rarely life-threatening. CONCLUSIONS Clofazimine was associated with improved culture conversion in the treatment of XDR-TB/HIV. Adverse effects were minor and non-life-threatening. Based on these preliminary data, further study of clofazimine in XDR-TB/HIV treatment is warranted. Given the present low rates of culture conversion in XDR-TB treatment, we recommend empirical inclusion of clofazimine in treatment regimens for XDR-TB.
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Affiliation(s)
- N Padayatchi
- Centre for the AIDS Programme of Research in South Africa (CAPRISA), Nelson R. Mandela School of Medicine, Doris Duke Medical Research Institute, University of KwaZulu-Natal, Private Bag X7, Congella, 4013, South Africa
| | - M Gopal
- Gulf Coast Pulmonary Medicine, Port Charlotte, FL 33952, USA
| | - R Naidoo
- Centre for the AIDS Programme of Research in South Africa (CAPRISA), Nelson R. Mandela School of Medicine, Doris Duke Medical Research Institute, University of KwaZulu-Natal, Private Bag X7, Congella, 4013, South Africa
| | - L Werner
- Centre for the AIDS Programme of Research in South Africa (CAPRISA), Nelson R. Mandela School of Medicine, Doris Duke Medical Research Institute, University of KwaZulu-Natal, Private Bag X7, Congella, 4013, South Africa
| | - K Naidoo
- Centre for the AIDS Programme of Research in South Africa (CAPRISA), Nelson R. Mandela School of Medicine, Doris Duke Medical Research Institute, University of KwaZulu-Natal, Private Bag X7, Congella, 4013, South Africa
| | - I Master
- King Dinuzulu Hospital, PO Box Dormerton 4015, South Africa
| | - M R O'Donnell
- Centre for the AIDS Programme of Research in South Africa (CAPRISA), Nelson R. Mandela School of Medicine, Doris Duke Medical Research Institute, University of KwaZulu-Natal, Private Bag X7, Congella, 4013, South Africa Division of Pulmonary Medicine, Department of Internal Medicine, Montefiore Medical Center, Albert Einstein College of Medicine, 1300 Morris Park Avenue, Bronx, NY 10461, USA
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Hassan E, Chaudhury S, Yadav N, Kalra P, Gopal M. Off-line hand written input based identity determination using multi kernel feature combination. Pattern Recognit Lett 2014. [DOI: 10.1016/j.patrec.2013.04.032] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Hassan E, Chaudhury S, Gopal M. Multi-modal Information Integration for Document Retrieval. 2013 12th International Conference on Document Analysis and Recognition 2013. [DOI: 10.1109/icdar.2013.243] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/19/2023]
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Abstract
The increased incidence of drug-resistant tuberculosis has created an urgent necessity for the development of new and effective anti-tuberculosis drugs and for alternative therapeutic regimens. Clofazimine (CFZ) is a fat-soluble riminophenazine dye used in the treatment of leprosy worldwide. CFZ has also been used as a Group 5 drug in the treatment of tuberculosis (TB). A large cohort study from Bangladesh published in 2010 described a treatment regimen for multidrug-resistant tuberculosis (MDR-TB) including CFZ as being highly effective against MDR-TB. We searched multiple databases for studies published through February 2012 that reported use of CFZ in MDR- and extensively drug-resistant TB (XDR-TB) treatment regimens. We identified nine observational studies (6 MDR-TB and 3 XDR-TB) including patients with drug-resistant TB treated with CFZ. Overall, 65% (95% confidence interval [95%CI] 54-76) of the patients experienced favorable outcomes, defined as either cure or treatment completion. Using random effects meta-analysis, 65% (95%CI 52-79) of those with MDR-TB and 66% (95%CI 42-89) of those with XDR-TB experienced favorable treatment outcomes. High-quality prospective cohort studies and clinical trials examining the effect of CFZ as part of drug-resistant TB treatment regimens are needed.
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Affiliation(s)
- M Gopal
- Division of Pulmonary Medicine, Albert Einstein College of Medicine, Bronx, NY 10461, USA
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Breeding J, Nair P, Nguyen N, Buscher H, Frost C, Gopal M, Pye R, Whittam S. Is peripheral arterial waveform analysis continuous cardiac output monitoring useful with assessment of oxygenation status for patients on veno–venous extracorporeal membrane oxygenation? Aust Crit Care 2013. [DOI: 10.1016/j.aucc.2013.02.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Murali G, Gopal M, Rajadurai A. Effect of Circular and Rectangular Drawbeads in Hemispherical Cup Forming: Finite Element Analysis and Experimental Validation. Arab J Sci Eng 2012. [DOI: 10.1007/s13369-012-0276-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Hassan E, Chaudhury S, Gopal M. Feature Combination in Kernel Space for Distance Based Image Hashing. IEEE Trans Multimedia 2012; 14:1179-1195. [DOI: 10.1109/tmm.2012.2190388] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/19/2023]
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Butovsky O, Siddiqui S, Gabriely G, Lanser A, Dake B, Gopal M, Doykan C, Wu P, Lawson R, Berry J, Krichevsky A, Cudkowicz M, Weiner H. Identification of a Unique miRNA Signature in CD14+/CD16- Blood-Monocytes in ALS Subjects Identical to That Observed in SOD Mice (IN9-2.002). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.in9-2.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Butovsky O, Siddiqui S, Gabriely G, Lanser A, Dake B, Gopal M, Doykan C, Wu P, Lawson R, Berry J, Krichevsky A, Cudkowicz M, Weiner H. Identification of a Unique miRNA Signature in CD14+/CD16- Blood-Monocytes in ALS Subjects Identical to That Observed in SOD Mice (P05.167). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.p05.167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Hassan E, Chaudhury S, Gopal M. Annotating Dance Posture Images Using Multi Kernel Feature Combination. 2011 Third National Conference on Computer Vision, Pattern Recognition, Image Processing and Graphics 2011. [DOI: 10.1109/ncvpripg.2011.16] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/19/2023]
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Hassan E, Chaudhury S, Gopal M, Garg V. A hybrid framework for event detection using multi-modal features. 2011 IEEE International Conference on Computer Vision Workshops (ICCV Workshops) 2011. [DOI: 10.1109/iccvw.2011.6130429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/19/2023]
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Hassan E, Garg R, Chaudhury S, Gopal M. Script based text identification. Proceedings of the 2011 Joint Workshop on Multilingual OCR and Analytics for Noisy Unstructured Text Data 2011. [DOI: 10.1145/2034617.2034630] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/19/2023]
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Hassan E, Chaudhury S, Gopal M. Document Image Indexing Using Edit Distance Based Hashing. 2011 International Conference on Document Analysis and Recognition 2011. [DOI: 10.1109/icdar.2011.242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/19/2023]
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Hassan E, Garg V, Haque SKM, Chaudhury S, Gopal M. Searching OCR'ed Text: An LDA Based Approach. 2011 International Conference on Document Analysis and Recognition 2011. [DOI: 10.1109/icdar.2011.244] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/19/2023]
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Garg R, Hassan E, Chaudhury S, Gopal M. A CRF Based Scheme for Overlapping Multi-colored Text Graphics Separation. 2011 International Conference on Document Analysis and Recognition 2011. [DOI: 10.1109/icdar.2011.245] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/19/2023]
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Gurupadayya BM, Gopal M, Padmashali B, Manohara YN. Synthesis and Pharmacological Evaluation of Azetidin-2-ones and Thiazolidin-4-ones Encompassing Benzothiazole. Indian J Pharm Sci 2011; 70:572-7. [PMID: 21394251 PMCID: PMC3038279 DOI: 10.4103/0250-474x.45393] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2007] [Revised: 05/21/2008] [Accepted: 09/10/2008] [Indexed: 11/10/2022] Open
Abstract
Various 7-chloro-6-fluoro-2-arylidenylaminobenzo(1,3)thiazole (2a-h) have been synthesized by the condensation of 7-chloro-6-fluoro-2-aminobenzo(1,3)thiazole (1) with different aromatic aldehydes. The Schiff's bases on reaction with acetyl chloride, chloroacetyl chloride and phenyl acetyl chloride yielded 1-(7-chloro-6-fluorobenzothiazol-2-yl)-3,4-substituted-aryl-azetidin-2-ones (3a-x). Similarly, cyclization of Schiff's base with thioglycolic acid furnished 3-(7-chloro-6-fluoro-benzothiazol-2-yl)-2-substituted–arylthiazolidin-4-ones (4a-h). The structures of the newly synthesized compounds have been established on the basis of their spectral data and elemental analysis. Some selected compounds were evaluated for antiinflammatory, analgesic, CNS depressant and skeletal muscle relaxant activity.
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Affiliation(s)
- B M Gurupadayya
- Department of Pharmaceutical Chemistry, J. S. S. College of Pharmacy, Mysore-570 015, India
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Hassan E, Chaudhury S, Gopal M. Multiple kernel learning for image indexing. Proceedings of the Seventh Indian Conference on Computer Vision, Graphics and Image Processing 2010. [DOI: 10.1145/1924559.1924606] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/19/2023]
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Hassan E, Chaudhury S, Gopal M. Identity Determination with Offline Handwritten Input Using Multi Kernel Feature Combination. 2010 12th International Conference on Frontiers in Handwriting Recognition 2010. [DOI: 10.1109/icfhr.2010.19] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/19/2023]
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Hassan E, Chaudhury S, Gopal M. Document Image Retrieval Using Feature Combination in Kernel Space. 2010 20th International Conference on Pattern Recognition 2010. [DOI: 10.1109/icpr.2010.495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/19/2023]
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Hassan E, Chaudhury S, Gopal M, Dholakia J. Use of MKL as symbol classifier for Gujarati character recognition. Proceedings of the 9th IAPR International Workshop on Document Analysis Systems 2010. [DOI: 10.1145/1815330.1815363] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/19/2023]
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Ho D, Gopal M, Ojelabi MO. Economic implications of preoperative PET-CT scanning in potentially resectable non-small cell lung cancer (NSCLC). J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.e16551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Gopal M, Balasubramanian D, Kanagarajah P, Anirudhan A, Murugan P. Madras Medical College: 175 years of medical heritage. Natl Med J India 2010; 23:117-120. [PMID: 20925216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Affiliation(s)
- M Gopal
- Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, NY 10467, USA.
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Ravichandra P, Gopal M, Annapurna J. Biological sulfide oxidation using autotrophicThiobacillussp.: evaluation of different immobilization methods and bioreactors. J Appl Microbiol 2009; 106:1280-91. [DOI: 10.1111/j.1365-2672.2008.04095.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Hassan E, Chaudhury S, Gopal M. Shape Descriptor Based Document Image Indexing and Symbol Recognition. 2009 10th International Conference on Document Analysis and Recognition 2009. [DOI: 10.1109/icdar.2009.63] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/19/2023]
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Shahabuddin MS, Gopal M. Genotoxicity of DNA Intercalating Anticancer Drugs: Pyrimido[4I,5I:4,5] thieno(2,3-b)quinolines on Somatic and Germinal Cells. Toxicol Mech Methods 2008; 17:135-45. [DOI: 10.1080/15376510600899605] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Shahabuddin MS, Gopal M, Vijayalaxmi KK. The Genotoxicity of DNA Intercalating Drug 8-Methoxy pyrimido [4′,5′:4,5]thieno(2,3-b)quinoline-4(3H)-one. Drug Chem Toxicol 2008; 28:345-57. [PMID: 16051559 DOI: 10.1081/dct-200064506] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
8-methoxypyrimido[4',5':4,5]thieno(2,3-b)quinoline-4(3H)-one (MPTQ) is known to have antitumor and cytotoxic activities on various types of tumors. This compound showed a strong clastogenic effect on bone marrow cells of Swiss albino mice treated in vivo (17.5-35 mg/kg body weight). MPTQ induced micronuclei formation (MN) at doses of 17.5, 23.3, and 35 mg/kg. Dose and time-yield effect of MPTQ was studied in the case of chromosome aberration assay. MPTQ induced a statistically significant increase in the frequency of chromosome aberrations and micronuclei induction. The drug induced significant abnormal sperms even in the sperm shape abnormality assay. Based on the data reported in the literature, we have tried to establish the relationship between the clastogenic effect observed and process of MPTQ intercalation into DNA and the formation of protein-associated DNA-strand breaks probably promoted by topoisomerase enzymes.
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Affiliation(s)
- M S Shahabuddin
- Department of Studies in Biochemistry, Kuvempu University, Shivagangotri, Davanagere, India
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Shenoy S, Vasania VS, Gopal M, Mehta A. 8-Methly-4-(3-diethylaminopropylamino) pyrimido [4′,5′;4,5] thieno (2,3–b) quinoline (MDPTQ), a quinoline derivate that causes ROS-mediated apoptosis in leukemia cell lines. Toxicol Appl Pharmacol 2007; 222:80-8. [PMID: 17553538 DOI: 10.1016/j.taap.2007.04.005] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2006] [Revised: 04/04/2007] [Accepted: 04/13/2007] [Indexed: 11/26/2022]
Abstract
The present study reports the biological activity of 8-methyl-4-(3-diethylamino-propylamino) pyrimido [4';5';4,5] thieno (2,3-b) quinoline (MDPTQ), a quinoline derivative structurally related to ellipticine and suggests a possible mechanism through which the compound induces apoptosis in carcinoma cell lines. Out of the 8 cell lines used in the study as representatives of different types of cancer, MDPTQ was found to be effective only against leukemia cell lines (HL-60 and K-562) whereas it had no effect on normal human bone marrow cells (BMC) which were used as controls. Fall mitochondrial membrane potential and increased reactive oxygen species (ROS) were mainly responsible for inducing apoptosis in the two cell lines. Cell death was demonstrated by increase in caspase 3 activity as well as phosphatidyl serine exposure. Pre-incubation with N-acetylcysteine (NAC) reduced the increased ROS and caspase 3 activity as well as phosphatidyl serine exposure. MDPTQ also caused cell cycle arrest in these cell lines. The above study for the first time reports the mode of action of a quinoline derivative, which could be a possible future candidate for leukemia therapy. However, there are lot of questions that need to be answered in terms of signalling pathways and its effects on animal models.
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Affiliation(s)
- Sudheer Shenoy
- Reliance Life Sciences Pvt. Ltd., Dhirubhai Ambani Life Sciences Centre, Thane-Belapur Road, Navi Mumbai, 400701, India
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Abstract
Sacrococcygeal teratoma (SCT) can be sporadic or familial and there appear to be different characteristics to these entities. It can be an isolated anomaly or occur as part of the Currarino triad, when it is associated with anorectal malformations and sacral anomalies. We present a case of familial sacrococcygeal teratoma and discuss its relationship to previously published reports, drawing conclusions regarding embryogenesis, diagnosis, screening and management.
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Affiliation(s)
- M Gopal
- Department of Paediatric Surgery, Royal Hospital for Children, Bristol, United Kingdom
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Mukherjee I, Singh S, Sharma PK, Jaya M, Gopal M, Kulshrsestha G. Extraction of multi-class pesticide residues in mango fruits (Mangiferae indica L.): application of pesticide residues in monitoring of mangoes. Bull Environ Contam Toxicol 2007; 78:380-3. [PMID: 17618379 DOI: 10.1007/s00128-007-9203-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2006] [Accepted: 04/10/2007] [Indexed: 05/16/2023]
Affiliation(s)
- I Mukherjee
- Agricultural Research Service, Division of Agricultural Chemicals, Indian Agricultural Research Institute, New Delhi, 110012, India.
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Mukherjee I, Gopal M, Mathur DS. Behavior of beta-cyfluthrin after foliar application on chickpea (cicer aretinium L. ) and pigeon pea (cajanus cajan L.). Bull Environ Contam Toxicol 2007; 78:85-9. [PMID: 17372662 DOI: 10.1007/s00128-007-9018-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Affiliation(s)
- I Mukherjee
- Agricultural Research Service, Division of Agricultural Chemicals, Indian Agricultural Research Institute, New Delhi 110012, India.
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Chandrasekar P, Krishnamoorthy G, Gopal M, Kapasi F, Potluri B. MP-12.07. Urology 2006. [DOI: 10.1016/j.urology.2006.08.412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Abstract
Fuzzy decision trees are powerful, top-down, hierarchical search methodology to extract human interpretable classification rules. However, they are often criticized to result in poor learning accuracy. In this paper, we propose Neuro-Fuzzy Decision Trees (N-FDTs); a fuzzy decision tree structure with neural like parameter adaptation strategy. In the forward cycle, we construct fuzzy decision trees using any of the standard induction algorithms like fuzzy ID3. In the feedback cycle, parameters of fuzzy decision trees have been adapted using stochastic gradient descent algorithm by traversing back from leaf to root nodes. With this strategy, during the parameter adaptation stage, we keep the hierarchical structure of fuzzy decision trees intact. The proposed approach of applying backpropagation algorithm directly on the structure of fuzzy decision trees improves its learning accuracy without compromising the comprehensibility (interpretability). The proposed methodology has been validated using computational experiments on real-world datasets.
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Affiliation(s)
- Rajen B Bhatt
- Control Laboratories, II/214, Department of Electrical Engineering, Indian Institute of Technology - Delhi, Hauz Khas, New Delhim - 110016, India.
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Sudha T, Teja VD, Gopal M, Rajesh M, Lakshmi V. Comparative evaluation of TRI-DOT Rapid HIV test with fourth-generation ELISA for the detection of human immunodeficiency virus. Clin Microbiol Infect 2005; 11:850-2. [PMID: 16153264 DOI: 10.1111/j.1469-0691.2005.01231.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
This study evaluated the TRI-DOT Rapid HIV test for the early detection of human immunodeficiency virus (HIV) infection in comparison with a fourth-generation ELISA (Vironostika HIV Uniform II). Of 23,609 sera, seven (0.03%) gave discordant results. Six of these were reactive only by the fourth-generation assay and were p24 antigen-positive by VIDAS DUO, Western blot and qualitative RT-PCR tests. The remaining discordant serum was considered to be false-positive by the TRI-DOT assay, as it was negative by repeat ELISA and Western blot tests. The sensitivity and specificity of the TRI-DOT test were 99.48% and 99.99%, respectively, compared with the fourth-generation ELISA.
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Affiliation(s)
- T Sudha
- Department of Microbiology, Nizam's Institute of Medical Sciences, Hyderabad, AP, India
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Gopal M, Jha SK, Shukla L, Rawat RV. In vitro detoxification of pendimethalin by two Actinomycetes spp. Bull Environ Contam Toxicol 2005; 75:1041-5. [PMID: 16400596 DOI: 10.1007/s00128-005-0854-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2005] [Accepted: 08/26/2005] [Indexed: 05/06/2023]
Affiliation(s)
- M Gopal
- Division of Agricultural Chemicals, Indian Agricultural Research Institute, New Delhi, India
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