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Mahajan K, Ghosh M. Empathy marketing during COVID-19 pandemic: decoding the impact and effectiveness on the brand image. CM 2022. [DOI: 10.18137/cardiometry.2022.23.392398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
For brands, empathy can create a customer persona, which can help in effectively targeting their consumers. In terms of marketing, however, it means asking what customers truly value rather than what will sell. Moreover, by creating content that evokes empathy, consumers are more likely to take action – sharing, responding, and even prompting change within their communities. Nevertheless, why are brands suddenly realizing the power of empathy? This is because consumers today are not only interested in passively consuming content. Instead, they actively seek out content that prompts a change in themselves and the world around them. This need of the hour made the brand realize the power of effective communication and hence the rise of empathy as a useful marketing tool. The research used a qualitative approach to understand the effectiveness of Empathy marketing during the pandemic hit time. Focus Group Discussions were conducted to understand the importance and relevance of empathy-based communication. The findings established that this type of communication is useful and helps the consumer create a positive brand image and a recall, but this may not directly impact or lead to a purchase decision.
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Bohlega S, Elboghdady A, Al-Johani A, Mahajan K, Mughari MK, Al-Saqa'aby M, Mohamed O, Alarieh R, Al Malik Y. Economic Evaluation of Cladribine Tablets in Patients With High Disease Activity-Relapsing-Remitting Multiple Sclerosis in the Kingdom of Saudi Arabia. Value Health Reg Issues 2021; 25:189-195. [PMID: 34425468 DOI: 10.1016/j.vhri.2021.03.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 02/25/2021] [Accepted: 03/11/2021] [Indexed: 11/15/2022]
Abstract
OBJECTIVE Cladribine tablets are the first short-course oral treatment approved for high disease activity relapsing-remitting multiple sclerosis (HDA-RRMS) across various countries. This analysis assessed the cost-effectiveness of introducing cladribine tablets as a treatment option for patients with high disease activity compared with other HDA-RRMS therapies in the Kingdom of Saudi Arabia (KSA). METHODS The cost-effectiveness model was adapted from the KSA payer's perspective. Data for the model's adaptation were retrieved from the literature and validated by key opinion leaders. The comparators considered in the model were alemtuzumab, dimethyl fumarate, fingolimod, interferon beta-1a (subcutaneous and intramuscular) and beta-1b, natalizumab, and teriflunomide. A sensitivity analysis was also performed to assess the robustness of the analysis. RESULTS The cost-effectiveness results showed cladribine tablets as the dominant strategy (ie, less costly and more effective) versus all the comparators. The incremental cost and quality-adjusted life-years gained were largely driven by drug acquisition cost and delayed expanded disability status scale progression, respectively. Cladribine tablets showed an 81% to 100% probability of being cost-effective at a threshold of Saudi Riyal 225 326 per quality-adjusted life-years gained against different comparators. CONCLUSIONS Cladribine tablets are a dominant treatment option for patients with HDA-RRMS from the payer perspective in the KSA.
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Affiliation(s)
- Saeed Bohlega
- King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
| | - Ahmed Elboghdady
- Merck Serono Middle East FZ LTD, an affiliate of Merck KGaA, Darmstadt, Germany
| | | | | | | | - Mai Al-Saqa'aby
- King Faisal Specialist Hospital and Research Centre, Riyadh, Saudi Arabia
| | | | | | - Yaser Al Malik
- King Abdulaziz Medical City, National Guard Health Affairs, Riyadh, Saudi Arabia
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Mahajan K, Prakash Chand Negi D. How is juvenile rheumatic heart disease different: baseline results from a prospective north Indian registry. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Introduction
Juvenile rheumatic heart disease (RHD) refers to RHD in patients <20 years of age. There are no contemporary data highlighting the differences between juvenile and older RHD patients.
Purpose
We aim to report the age related differences in the pattern, and consequencies of valvular dysfunction in patients of RHD.
Methods
The 2475 consecutive patients of RHD diagnosed using clinical and echocardiographic criteria were registered prospectively from 2011 till December 2019. Patients were divided into 3 groups according to their age: Group 1 (Juvenile RHD), Group 2 (21–50 years), and Group 2 (>51 years).The data concerning the socio-demographic and clinical profile were recorded systematically, and the nature and severity of valvular dysfunction was assessed by echocardiography. The data were analyzed using the Epi-InfoTM Software.
Results
Out of 2475 RHD patients, Juvenile RHD comprised of 211 (8.5%) patients. Group 2 and 3 comprised of 1691 (68.3%) and 573 (23.2%) patients respectively. Overall, 1767 (71.4%) patients were females, however this female predilection was less pronounced in juvenile RHD (55.5% females vs 44.5% males) as compared to older groups. Past history of acute rheumatic fever was more commonly recorded in Juvenile RHD group (37.9% vs 18.8% in group 2 and 10% in group 3, p=0.0001). At the time of registration, the presence of advanced heart failure symptoms (dyspnea class III and IV) (11.4% group 1 vs 13.9% group 2 vs 20.6% group 3, p<0.0001), right heart failure symptoms (0.9% group 1 vs 2.5% group 2 vs 7.3% group 3, p<0.01), thromboembolic events (0% group 1 vs 4.1% group 2 vs 3.3% group 3, p<0.01), atrial fibrillation (2.8% group 1 vs 24.5% group 2 vs 45.9% group 3, p<0.0001), and pulmonary hypertension (27.1% group 1 vs 40.3% group 2 vs 51.9% group 3, p<0.01), were all more commonly recorded in non-juvenile older RHD groups. Multivalvular involvement was also less common in juvenile RHD (34.6% vs 42.4% and 44.5%, p=0.04). Mitral regurgitation was the most common lesion in Juvenile RHD followed by aortic regurgitation (68.7% and 40.2% respectively). Stenotic lesions (both mitral and aortic) were present more commonly in older age groups.
Conclusion
RHD is predominantly a disease of females, however the predilection is less common in juvenile patients. Juvenile RHD predominantly affects the mitral valve and mainly leads to regurgitant lesions. As the age advances, the complications of RHD, mainly heart failure symptoms, thromboembolic events, pulmonary hypertension, and atrial fibrillation, become more common.
Funding Acknowledgement
Type of funding source: Public hospital(s). Main funding source(s): Self sponsored registry
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Affiliation(s)
- K Mahajan
- Indira Gandhi Medical College, Shimla, India
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Goel R, Kaur I, Mahajan K, Chatterjee M. PMU8 The Increasing Burden of NON-Communicable Diseases in India. Value Health Reg Issues 2020. [DOI: 10.1016/j.vhri.2020.07.366] [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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Michels RE, De Francesco M, Mahajan K, Hengstman GJD, Schiffers KMH, Budhia S, Harty G, Krol M. Correction to: Cost Effectiveness of Cladribine Tablets for the Treatment of Relapsing-Remitting Multiple Sclerosis in The Netherlands. Appl Health Econ Health Policy 2020; 18:141. [PMID: 31939112 PMCID: PMC6978442 DOI: 10.1007/s40258-019-00548-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The second author's name should be "Maria De Francesco" rather than "Maria de Fransesco".
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Affiliation(s)
- Renée Else Michels
- IQVIA, Real World Evidence Solutions, Herikerbergweg 314, 1101 CT, Amsterdam, The Netherlands
| | | | | | - Gerald J D Hengstman
- Department of Neurology, Catharina Hospital, Michelangelolaan 2, 5623 EJ, Eindhoven, The Netherlands
| | | | - Sangeeta Budhia
- PAREXEL International, PAREXEL Access Consulting, London, UK
| | - Gerard Harty
- EMD Serono, a business of Merck KGaA, Boston, MA, USA
| | - Marieke Krol
- IQVIA, Real World Evidence Solutions, Herikerbergweg 314, 1101 CT, Amsterdam, The Netherlands.
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Michels RE, de Fransesco M, Mahajan K, Hengstman GJD, Schiffers KMH, Budhia S, Harty G, Krol M. Cost Effectiveness of Cladribine Tablets for the Treatment of Relapsing-Remitting Multiple Sclerosis in The Netherlands. Appl Health Econ Health Policy 2019; 17:857-873. [PMID: 31444659 PMCID: PMC6885501 DOI: 10.1007/s40258-019-00500-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
BACKGROUND Cladribine tablets have recently become available in The Netherlands for patients with relapsing-remitting multiple sclerosis (RRMS) as a disease-modifying agent that reduces the frequency and severity of relapses and delays disability progression. OBJECTIVE The aim of this study was to evaluate the cost effectiveness of cladribine tablets, compared with alternative options, in the treatment of RRMS patients with high disease activity (HDA) and patients with rapidly evolving severe (RES) MS in The Netherlands. METHODS A Markov model was developed simulating the costs and effects of RRMS treatment. For HDA, alemtuzumab and fingolimod were used as comparators; natalizumab was used for the RES subpopulation. The analysis included a societal perspective and a value-of-information (VOI) analysis. RESULTS For the HDA subpopulation, treatment with cladribine tablets was the cost-effective (dominant) strategy compared with alemtuzumab and fingolimod, with 50.9% and 98.2%, respectively, probability of being cost effective at a threshold of €50,000/QALY gained and a net monetary benefit (NMB) of €10,866 and €151,115, respectively. For the RES subpopulation, treatment with cladribine tablets dominated treatment with natalizumab, with 94.1% probability of being cost effective at a threshold of €50,000/QALY gained and an NMB of €122,986. Note that these outcomes are driven by the lower costs of cladribine tablets. Efficacy differences were small, very uncertain, and likely not clinically meaningful. The probabilistic sensitivity analyses showed significant overlap in the credible intervals for total lifetime QALY outcomes and costs of cladribine tablets and all relevant comparators. The population-level VOI amounted to €19,295,441. CONCLUSIONS The base-case analysis shows that treatment of RRMS with cladribine tablets is cost effective versus alemtuzumab and fingolimod in HDA patients, and cost effective versus natalizumab in RES patients, at a threshold of €50,000. Driven by the lower costs, cladribine tablets were cost effective (dominant) in all base-case analyses. However, given that outcomes are based on indirect comparisons and post hoc subgroup analysis, as well as the uncertainty surrounding the outcomes, the results presented in this paper should be interpreted with caution.
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Affiliation(s)
- Renée Else Michels
- IQVIA, Real World Evidence Solutions, Herikerbergweg 314, 1101 CT, Amsterdam, The Netherlands
| | | | | | - Gerald J D Hengstman
- Department of Neurology, Catharina Hospital, Michelangelolaan 2, 5623 EJ, Eindhoven, The Netherlands
| | | | - Sangeeta Budhia
- PAREXEL International, PAREXEL Access Consulting, London, UK
| | - Gerard Harty
- EMD Serono, a business of Merck KGaA, Boston, MA, USA
| | - Marieke Krol
- IQVIA, Real World Evidence Solutions, Herikerbergweg 314, 1101 CT, Amsterdam, The Netherlands.
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Sondhi S, Negi P, Mahajan K. Clinical characteristics, complications, and treatment practices in patients with RHD 7-year results from HP-RHD registry. Indian Heart J 2019. [DOI: 10.1016/j.ihj.2019.11.004] [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: 10/25/2022] Open
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Nicklaus KM, Teo I, Reece GP, Huang SC, Mahajan K, Andon J, Khanal P, Sun CS, Merchant FA, Markey MK, Fingeret MC. Abstract P5-18-03: Relationships among breast symmetry, appearance investment, and body image dissatisfaction in breast cancer patients undergoing reconstruction. Cancer Res 2018. [DOI: 10.1158/1538-7445.sabcs17-p5-18-03] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Purpose: Reconstruction as part of treatment for breast cancer is aimed at mitigating body image concerns post-mastectomy. Although algorithms are increasingly being developed to objectively assess breast reconstruction outcomes, previous research has not evaluated associations between objectively quantified breast aesthetic appearance and patient-reported body image outcomes. Further, the role appearance investment plays in a patient's body image is not well understood. We examined the extent to which objectively quantified breast symmetry and appearance investment were associated with body image dissatisfaction in patients undergoing cancer-related breast reconstruction. Method: Breast cancer patients in different stages of reconstruction (n=190) completed self-report measures of appearance investment and body image dissatisfaction. Vertical extent and horizontal extent symmetry values, which are indicators of breast symmetry across the vertical axis, were calculated from clinical photographs. Associations among symmetry, appearance investment, body image dissatisfaction, and patient clinical factors were examined. Multiple regression was used to evaluate the association of symmetry and appearance investment with body image dissatisfaction. Results: Vertical extent symmetry, but not horizontal extent symmetry, was associated with body image dissatisfaction. Multiple regression results indicated that decreased vertical extent symmetry (β = -0.24, p <0.01) and increased appearance investment (β = 0.37, p <0.001) were significantly associated with greater body image dissatisfaction while controlling for clinical factors.Conclusions: Our findings suggest that quantitatively measured reconstruction outcomes and appearance investment both significantly contribute to an understanding of patient-reported body image satisfaction during breast reconstruction treatment. Future studies are encouraged to utilize algorithms assessing breast aesthetic appearance and to consider patient values as predictors of body image outcomes.
Symmetry Predicting Body Image Dissatisfaction Controlling for Clinical Factors Body Image Dissatisfaction (β)VE Symmetry-0.24**Appearance investment (ASI-R)0.37*** Clinial factors controlled for BMI-0.01Prior chemotherapy0.19Prior radiation therapy0.08Prior complications0.06Reconstruction timing (ref: Immediate) Delayed0.06Reconstruction type (ref: Implant) Autologous-0.01Mixed type0.09Reconstruction Stage (ref: Pre-surgery) Intermediate-0.06Final-0.15*p<.05, **p<.01, ***p<.001; ref = reference group; Note ASI-R = Appearance Schemas Inventory-Revised
Citation Format: Nicklaus KM, Teo I, Reece GP, Huang S-C, Mahajan K, Andon J, Khanal P, Sun CS, Merchant FA, Markey MK, Fingeret MC. Relationships among breast symmetry, appearance investment, and body image dissatisfaction in breast cancer patients undergoing reconstruction [abstract]. In: Proceedings of the 2017 San Antonio Breast Cancer Symposium; 2017 Dec 5-9; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2018;78(4 Suppl):Abstract nr P5-18-03.
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Affiliation(s)
- KM Nicklaus
- The University of Texas at Austin, Austin, TX; Duke-NUS Medical School, Singapore, Singapore; The University of Texas MD Anderson Cancer Center, Houston, TX; OpenText, Austin, TX; Icahn School of Medicine at Mount Sinai, New York, NY; University of Houston, Houston, TX; University of Hawaii Residency Programs, Honolulu, HI
| | - I Teo
- The University of Texas at Austin, Austin, TX; Duke-NUS Medical School, Singapore, Singapore; The University of Texas MD Anderson Cancer Center, Houston, TX; OpenText, Austin, TX; Icahn School of Medicine at Mount Sinai, New York, NY; University of Houston, Houston, TX; University of Hawaii Residency Programs, Honolulu, HI
| | - GP Reece
- The University of Texas at Austin, Austin, TX; Duke-NUS Medical School, Singapore, Singapore; The University of Texas MD Anderson Cancer Center, Houston, TX; OpenText, Austin, TX; Icahn School of Medicine at Mount Sinai, New York, NY; University of Houston, Houston, TX; University of Hawaii Residency Programs, Honolulu, HI
| | - S-C Huang
- The University of Texas at Austin, Austin, TX; Duke-NUS Medical School, Singapore, Singapore; The University of Texas MD Anderson Cancer Center, Houston, TX; OpenText, Austin, TX; Icahn School of Medicine at Mount Sinai, New York, NY; University of Houston, Houston, TX; University of Hawaii Residency Programs, Honolulu, HI
| | - K Mahajan
- The University of Texas at Austin, Austin, TX; Duke-NUS Medical School, Singapore, Singapore; The University of Texas MD Anderson Cancer Center, Houston, TX; OpenText, Austin, TX; Icahn School of Medicine at Mount Sinai, New York, NY; University of Houston, Houston, TX; University of Hawaii Residency Programs, Honolulu, HI
| | - J Andon
- The University of Texas at Austin, Austin, TX; Duke-NUS Medical School, Singapore, Singapore; The University of Texas MD Anderson Cancer Center, Houston, TX; OpenText, Austin, TX; Icahn School of Medicine at Mount Sinai, New York, NY; University of Houston, Houston, TX; University of Hawaii Residency Programs, Honolulu, HI
| | - P Khanal
- The University of Texas at Austin, Austin, TX; Duke-NUS Medical School, Singapore, Singapore; The University of Texas MD Anderson Cancer Center, Houston, TX; OpenText, Austin, TX; Icahn School of Medicine at Mount Sinai, New York, NY; University of Houston, Houston, TX; University of Hawaii Residency Programs, Honolulu, HI
| | - CS Sun
- The University of Texas at Austin, Austin, TX; Duke-NUS Medical School, Singapore, Singapore; The University of Texas MD Anderson Cancer Center, Houston, TX; OpenText, Austin, TX; Icahn School of Medicine at Mount Sinai, New York, NY; University of Houston, Houston, TX; University of Hawaii Residency Programs, Honolulu, HI
| | - FA Merchant
- The University of Texas at Austin, Austin, TX; Duke-NUS Medical School, Singapore, Singapore; The University of Texas MD Anderson Cancer Center, Houston, TX; OpenText, Austin, TX; Icahn School of Medicine at Mount Sinai, New York, NY; University of Houston, Houston, TX; University of Hawaii Residency Programs, Honolulu, HI
| | - MK Markey
- The University of Texas at Austin, Austin, TX; Duke-NUS Medical School, Singapore, Singapore; The University of Texas MD Anderson Cancer Center, Houston, TX; OpenText, Austin, TX; Icahn School of Medicine at Mount Sinai, New York, NY; University of Houston, Houston, TX; University of Hawaii Residency Programs, Honolulu, HI
| | - MC Fingeret
- The University of Texas at Austin, Austin, TX; Duke-NUS Medical School, Singapore, Singapore; The University of Texas MD Anderson Cancer Center, Houston, TX; OpenText, Austin, TX; Icahn School of Medicine at Mount Sinai, New York, NY; University of Houston, Houston, TX; University of Hawaii Residency Programs, Honolulu, HI
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Sardana K, Chugh S, Mahajan K. An observational study of the efficacy of azithromycin in erythema annulare centrifugum. Clin Exp Dermatol 2018; 43:296-299. [PMID: 29297941 DOI: 10.1111/ced.13334] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/16/2017] [Indexed: 11/28/2022]
Abstract
Erythema annulare centrifugum (EAC) is a form of figurate erythema consequent to a cutaneous hypersensitivity reaction to an underlying agent. In the present study, we aimed to assess the role of oral azithromycin in cases of idiopathic EAC. We performed an open trial of azithromycin in 10 patients with idiopathic EAC. Histopathological examination of biopsies was performed to exclude any alternative diagnosis and to assess the depth of the infiltrate. Patients were administered oral azithromycin 250 mg once daily until clinical resolution of the disease, and followed up regularly to monitor for possible relapse. Histopathological examination of the 10 biopsies revealed superficial pattern in 3, deep pattern in 2 and mixed pattern in the remaining 5. Of the 10 patients, 8 responded to azithromycin 250 mg, with no relapse during follow-up. Oral azithromycin might be a promising therapy in cases of idiopathic EAC. Cases with a superficial pattern respond earlier than cases with a deep pattern.
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Affiliation(s)
- K Sardana
- Department of Dermatology, RML Hospital, New Delhi, India
| | - S Chugh
- Department of Dermatology, Maulana Azad Medical College, New Delhi, India
| | - K Mahajan
- Department of Dermatology, Hindu Rao Hospital, New Delhi, India
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Bansal P, Arora S, Mahajan K. Test for Gini indices against an umbrella ordered alternative. Journal of Statistics and Management Systems 2017. [DOI: 10.1080/09720510.2017.1413803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- P. Bansal
- Department of Statistics, Panjab University, Chandigarh 160014, India
| | - Sangeeta Arora
- Department of Statistics, Panjab University, Chandigarh 160014, India
| | - K. Mahajan
- Department of Statistics, Panjab University, Chandigarh 160014, India
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Pradhan S, Mahajan K, Gulati H, Sharma M, Kumar A, Patel K, Masand H, Mansuri I, Dhongde J, Bhandarkar M, Chudasama H. Overview of data acquisition and central control system of steady state superconducting Tokamak (SST-1). Fusion Engineering and Design 2016. [DOI: 10.1016/j.fusengdes.2016.06.023] [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: 11/16/2022]
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Mahajan K, Mahajan NP. ACK1/TNK2 tyrosine kinase: molecular signaling and evolving role in cancers. Oncogene 2014; 34:4162-7. [PMID: 25347744 PMCID: PMC4411206 DOI: 10.1038/onc.2014.350] [Citation(s) in RCA: 89] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2014] [Revised: 09/17/2014] [Accepted: 09/22/2014] [Indexed: 01/11/2023]
Abstract
Deregulated tyrosine kinase signaling alters cellular homeostasis to drive cancer progression. The emergence of a non-receptor tyrosine kinase, ACK1 as an oncogenic kinase, has uncovered novel mechanisms by which tyrosine kinase signaling promotes cancer progression. While early studies focused on ACK1 (also known as activated Cdc42-associated kinase 1 or TNK2) as a cytosolic effecter of activated transmembrane receptor tyrosine kinases (RTKs), wherein it shuttles between the cytosol and the nucleus to rapidly transduce extracellular signals from the RTKs to the intracellular effectors, recent data unfold a new aspect of its functionality as an epigenetic regulator. ACK1 interacts with the Estrogen Receptor (ER)/histone demethylase KDM3A (JHDM2a) complex, modifies KDM3A by tyrosine phosphorylation to regulate transcriptional outcome at HOXA1 locus to promote the growth of tamoxifen-resistant breast cancer. It is also well established that ACK1 regulates the activity of Androgen Receptor (AR) by tyrosine phosphorylation to fuel the growth of hormone-refractory prostate cancers. Further, recent explosion in genomic sequencing has revealed recurrent ACK1 gene amplification and somatic mutations in a variety of human malignancies, providing a molecular basis for its role in neoplastic transformation. In this review, we will discuss the various facets of ACK1 signaling, including its newly uncovered epigenetic regulator function, which enables cells to bypass the blockade to major survival pathways to promote resistance to standard cancer treatments. Not surprisingly, cancer cells appear to acquire an `addiction’ to ACK1 mediated survival, particularly under stress conditions, such as growth factor deprivation or genotoxic insults or hormone deprivation. With the accelerated development of potent and selective ACK1 inhibitors, targeted treatment for cancers harboring aberrant ACK1 activity may soon become a clinical reality.
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Affiliation(s)
- K Mahajan
- 1] Moffitt Cancer Center, Drug Discovery Department, Tampa, FL, USA [2] Department of Oncologic Sciences, University of South Florida, Tampa, FL, USA
| | - N P Mahajan
- 1] Moffitt Cancer Center, Drug Discovery Department, Tampa, FL, USA [2] Department of Oncologic Sciences, University of South Florida, Tampa, FL, USA
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Mahajan NN, Mahajan K. Physiological sex steroid replacement in premature ovarian failure. Hum Reprod 2012; 27:3119; author reply 3119-20. [DOI: 10.1093/humrep/des269] [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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Gupta R, Singhal P, Mahajan K, Singhal A. Fabricating feeding plate in CLP infants with two different material: a series of case report. J Indian Soc Pedod Prev Dent 2012; 30:352-5. [PMID: 23514692 DOI: 10.4103/0970-4388.108943] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Feeding is a family's biggest concerns when a child is born with cleft lip and/or palate. The goal for that child is to have as near normal feeding as possible. This report presents fabrication of feeding plates in two infants born with cleft lip and palate using two different materials.
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Affiliation(s)
- R Gupta
- Department of Prosthodontics, HP Government Dental College, Shimla, India.
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Barawkar DA, Meru A, Bandyopadhyay A, Banerjee A, Deshpande AM, Athare C, Koduru C, Khose G, Gundu J, Mahajan K, Patil P, Kandalkar SR, Niranjan S, Bhosale S, De S, Mukhopadhyay S, Chaudhary S, Koul S, Singh U, Chugh A, Palle VP, Mookhtiar KA, Vacca J, Chakravarty PK, Nargund RP, Wright SD, Roy S, Graziano MP, Singh SB, Cully D, Cai TQ. Potent and Selective Inhibitors of Long Chain l-2-Hydroxy Acid Oxidase Reduced Blood Pressure in DOCA Salt-Treated Rats. ACS Med Chem Lett 2011; 2:919-23. [PMID: 24900281 DOI: 10.1021/ml2001938] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2011] [Accepted: 10/07/2011] [Indexed: 12/31/2022] Open
Abstract
l-2-Hydroxy acid oxidase (Hao2) is a peroxisomal enzyme with predominant expression in the liver and kidney. Hao2 was recently identified as a candidate gene for blood pressure quantitative trait locus in rats. To investigate a pharmacological role of Hao2 in the management of blood pressure, selective Hao2 inhibitors were developed. Optimization of screening hits 1 and 2 led to the discovery of compounds 3 and 4 as potent and selective rat Hao2 inhibitors with pharmacokinetic properties suitable for in vivo studies in rats. Treatment with compound 3 or 4 resulted in a significant reduction or attenuation of blood pressure in an established or developing model of hypertension, deoxycorticosterone acetate-treated rats. This is the first report demonstrating a pharmacological benefit of selective Hao2 inhibitors in a relevant model of hypertension.
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Affiliation(s)
- Dinesh A. Barawkar
- Drug Discovery Facility, Advinus Therapeutics Limited, Quantum Towers, Plot-9, Phase-I, Rajiv Gandhi InfoTech Park, Hinjewadi,
Pune 411 057, India
| | - Ashwin Meru
- Drug Discovery Facility, Advinus Therapeutics Limited, Quantum Towers, Plot-9, Phase-I, Rajiv Gandhi InfoTech Park, Hinjewadi,
Pune 411 057, India
| | - Anish Bandyopadhyay
- Drug Discovery Facility, Advinus Therapeutics Limited, Quantum Towers, Plot-9, Phase-I, Rajiv Gandhi InfoTech Park, Hinjewadi,
Pune 411 057, India
| | - Abir Banerjee
- Drug Discovery Facility, Advinus Therapeutics Limited, Quantum Towers, Plot-9, Phase-I, Rajiv Gandhi InfoTech Park, Hinjewadi,
Pune 411 057, India
| | - Anil M. Deshpande
- Drug Discovery Facility, Advinus Therapeutics Limited, Quantum Towers, Plot-9, Phase-I, Rajiv Gandhi InfoTech Park, Hinjewadi,
Pune 411 057, India
| | - Chandrashekhar Athare
- Drug Discovery Facility, Advinus Therapeutics Limited, Quantum Towers, Plot-9, Phase-I, Rajiv Gandhi InfoTech Park, Hinjewadi,
Pune 411 057, India
| | - Chandrasekhar Koduru
- Drug Discovery Facility, Advinus Therapeutics Limited, Quantum Towers, Plot-9, Phase-I, Rajiv Gandhi InfoTech Park, Hinjewadi,
Pune 411 057, India
| | - Goraksha Khose
- Drug Discovery Facility, Advinus Therapeutics Limited, Quantum Towers, Plot-9, Phase-I, Rajiv Gandhi InfoTech Park, Hinjewadi,
Pune 411 057, India
| | - Jayasagar Gundu
- Drug Discovery Facility, Advinus Therapeutics Limited, Quantum Towers, Plot-9, Phase-I, Rajiv Gandhi InfoTech Park, Hinjewadi,
Pune 411 057, India
| | - Koshu Mahajan
- Drug Discovery Facility, Advinus Therapeutics Limited, Quantum Towers, Plot-9, Phase-I, Rajiv Gandhi InfoTech Park, Hinjewadi,
Pune 411 057, India
| | - Pradeep Patil
- Drug Discovery Facility, Advinus Therapeutics Limited, Quantum Towers, Plot-9, Phase-I, Rajiv Gandhi InfoTech Park, Hinjewadi,
Pune 411 057, India
| | - Sachin R. Kandalkar
- Drug Discovery Facility, Advinus Therapeutics Limited, Quantum Towers, Plot-9, Phase-I, Rajiv Gandhi InfoTech Park, Hinjewadi,
Pune 411 057, India
| | - Sanjay Niranjan
- Drug Discovery Facility, Advinus Therapeutics Limited, Quantum Towers, Plot-9, Phase-I, Rajiv Gandhi InfoTech Park, Hinjewadi,
Pune 411 057, India
| | - Shubhangi Bhosale
- Drug Discovery Facility, Advinus Therapeutics Limited, Quantum Towers, Plot-9, Phase-I, Rajiv Gandhi InfoTech Park, Hinjewadi,
Pune 411 057, India
| | - Siddhartha De
- Drug Discovery Facility, Advinus Therapeutics Limited, Quantum Towers, Plot-9, Phase-I, Rajiv Gandhi InfoTech Park, Hinjewadi,
Pune 411 057, India
| | - Sudit Mukhopadhyay
- Drug Discovery Facility, Advinus Therapeutics Limited, Quantum Towers, Plot-9, Phase-I, Rajiv Gandhi InfoTech Park, Hinjewadi,
Pune 411 057, India
| | - Sumit Chaudhary
- Drug Discovery Facility, Advinus Therapeutics Limited, Quantum Towers, Plot-9, Phase-I, Rajiv Gandhi InfoTech Park, Hinjewadi,
Pune 411 057, India
| | - Summon Koul
- Drug Discovery Facility, Advinus Therapeutics Limited, Quantum Towers, Plot-9, Phase-I, Rajiv Gandhi InfoTech Park, Hinjewadi,
Pune 411 057, India
| | - Umesh Singh
- Drug Discovery Facility, Advinus Therapeutics Limited, Quantum Towers, Plot-9, Phase-I, Rajiv Gandhi InfoTech Park, Hinjewadi,
Pune 411 057, India
| | - Anita Chugh
- Drug Discovery Facility, Advinus Therapeutics Limited, Quantum Towers, Plot-9, Phase-I, Rajiv Gandhi InfoTech Park, Hinjewadi,
Pune 411 057, India
| | - Venkata P. Palle
- Drug Discovery Facility, Advinus Therapeutics Limited, Quantum Towers, Plot-9, Phase-I, Rajiv Gandhi InfoTech Park, Hinjewadi,
Pune 411 057, India
| | - Kasim A. Mookhtiar
- Drug Discovery Facility, Advinus Therapeutics Limited, Quantum Towers, Plot-9, Phase-I, Rajiv Gandhi InfoTech Park, Hinjewadi,
Pune 411 057, India
| | - Joseph Vacca
- Merck Research Laboratories, Rahway, New Jersey 07065,
United States
| | | | - Ravi P. Nargund
- Merck Research Laboratories, Rahway, New Jersey 07065,
United States
| | - Samuel D. Wright
- Merck Research Laboratories, Rahway, New Jersey 07065,
United States
| | - Sophie Roy
- Merck Research Laboratories, Rahway, New Jersey 07065,
United States
| | | | - Sheo B. Singh
- Merck Research Laboratories, Rahway, New Jersey 07065,
United States
| | - Doris Cully
- Merck Research Laboratories, Rahway, New Jersey 07065,
United States
| | - Tian-Quan Cai
- Merck Research Laboratories, Rahway, New Jersey 07065,
United States
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16
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Affiliation(s)
- B Kumar
- St. Vincent Mercy Medical Center, Toledo, Ohio 43608, USA
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17
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Swami M, Mahajan K, Arya S, Mehla SK, Singh RV. Organoboron(III) and organolead(IV) complexes as antimicrobial and antimycobacterial agents: Synthetic, structural, and biological aspects. RUSS J COORD CHEM+ 2009. [DOI: 10.1134/s1070328409050108] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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18
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Mahajan K, Swami M, Singh RV. Microwave synthesis, spectral studies, antimicrobial approach, and coordination behavior of antimony(III) and bismuth(III) compounds with benzothiazoline. RUSS J COORD CHEM+ 2009. [DOI: 10.1134/s1070328409030038] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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19
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Abstract
BACKGROUND Benign breast lumps affect 10% of women in their lifetimes. Despite a favorable natural history enabling surveillance as an option, surgical excision continues to be popular. Avoiding a scar on the breast is an inherent feminine desire. Because the breast is a part with a high charge in the culture, women seek to keep it away from the surgical knife. Numerous minimally invasive approaches have evolved as a result of this psychology. These leave much to be desired. Circumareolar incision at best camouflages the scar, which still is sited on the breast. This scar is subject to the same sequelae as any other breast scar. The axilla, an anatomically contiguous space, provides easy access for endoscopic breast surgery. The authors used this access to excise benign breast lumps endoscopically. This spared the breast from a scar. METHODS Between January 2002 and March 2005, 14 women with benign breast lumps underwent surgery. Transaxillary endoscopic excision of 18 such lumps was performed. RESULTS A total of 14 women with 18 benign breast lumps underwent surgery. The mean operative time per patient was 66.78 min (range, 40-110 min). No axillary injury, bleeding, technical difficulty, surgical emphysema, conversion, hematoma, or rehospitalization occurred. All the women expressed their satisfaction and happiness with the operation. CONCLUSION Endoscopic excision of benign breast lumps is a safe and patient-friendly procedure.
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Affiliation(s)
- B B Agarwal
- Department of General Surgery, Sir Ganga Ram Hospital, New Delhi, 110060, India.
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20
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Mahajan NN, Mahajan K. Improving the existing diagnostic strategy by accounting for characteristics of the women in the diagnostic work up for postmenopausal bleeding. BJOG 2007; 114:650; author reply 650-1. [PMID: 17439574 DOI: 10.1111/j.1471-0528.2007.01303.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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21
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22
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Mahajan NN, Mahajan K. Re: bacterial vaginosis in a cohort of Danish pregnant women: prevalence and relationship with preterm delivery, low birthweight and perinatal infections. BJOG 2007; 114:510-1; author reply 511. [PMID: 17378828 DOI: 10.1111/j.1471-0528.2006.01251.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Abstract
BACKGROUND Adenomyoma is a benign tumour composed of smooth muscle and benign endometrium. These tumours typically originate within the uterus. An extra-uterine adenomyoma is a rare entity. CASE We report a case of extra-uterine adenomyoma of the ovarian ligament, which was an incidental finding during a total abdominal hysterectomy and bilateral salpingo-oophorectomy for a benign ovarian tumour in a postmenopausal woman. The mass was round with uterine-type smooth muscle and scattered functional endometrial glands and stroma. DISCUSSION Only seven other cases of an extra-uterine uterine-like mass are reported in the literature. There have been no cases of adenomyoma in the ovarian ligament reported until now. CONCLUSION It is most likely that this uterine-like mass arose from the tissues of the secondary müllerian system.
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Affiliation(s)
- L Choudhrie
- Padhar Hospital, Padhar, District - Betul, Madhya Pradesh, India
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24
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Mason PA, Walters TJ, DiGiovanni J, Beason CW, Jauchem JR, Dick EJ, Mahajan K, Dusch SJ, Shields BA, Merritt JH, Murphy MR, Ryan KL. Lack of effect of 94 GHz radio frequency radiation exposure in an animal model of skin carcinogenesis. Carcinogenesis 2001; 22:1701-8. [PMID: 11577012 DOI: 10.1093/carcin/22.10.1701] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [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: 11/13/2022] Open
Abstract
Although there is no evidence that electromagnetic energy in the radio frequency radiation (RFR) band is mutagenic, there have been suggestions that RFR energy might serve as either a promoter or co-promoter in some animal models of carcinogenesis. Recent developments in electromagnetic technology have resulted in the manufacture of RFR sources capable of generating frequencies in the millimeter wavelength (MMW) range (30-300 GHz). Because absorption of MMW energy occurs in the skin, it is to be expected that long-term detrimental health effects, if any, would most likely be manifest in the skin. In this study we investigated whether a single (1.0 W/cm(2) for 10 s) or repeated (2 exposures/week for 12 weeks, 333 mW/cm(2) for 10 s) exposure to 94 GHz RFR serves as a promoter or co-promoter in the 7,12-dimethylbenz[a]anthracene (DMBA)-induced SENCAR mouse model of skin carcinogenesis. Neither paradigm of MMW exposure significantly affected papilloma development, as evidenced by a lack of effect on tumor incidence and multiplicity. There was also no evidence that MMW exposure served as a co-promoter in DMBA-induced animals repeatedly treated with 12-O-tetradecanoylphorbol 13-acetate. Therefore, we conclude that exposure to 94 GHz RFR under these conditions does not promote or co-promote papilloma development in this animal model of skin carcinogenesis.
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Affiliation(s)
- P A Mason
- Air Force Research Laboratory, Directed Energy Bioeffects Division, Brooks AFB, TX, 78235, USA.
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25
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Kothekar V, Mahajan K, Raha K, Gupta D. Molecular dynamics simulation of conformational flexibility of alamethicin fragments in aqueous and membranous environment. J Biomol Struct Dyn 1996; 14:303-16. [PMID: 9016408 DOI: 10.1080/07391102.1996.10508126] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [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: 02/03/2023]
Abstract
We present here results on molecular dynamics (MD) simulation on two fragments of channel forming antibiotic peptide Alamethicin, containing isoamino butyric acid (Aib). Simulations are carried out in aqueous and membranous environment in a bilayer of 39 molecules of Dimyristoyl phosphatidyl choline (DMPC). The peptides Boc-Pro-Aib-Ala-Aib-OBzl (Alam 1) and Boc-Leu-Aib-Pro-OBzl (Alam 2) were simulated from their crystallographic coordinates. The bilayers were built from two different conformations (A and B) of DMPC reported in crystal data. The P-N dipoles were arranged hexagonally with surface area per lipid molecule 66.5 A degrees 2 and P-P separation across the bilayer 34 A degrees. They were hydrated by 28.6 and 25.5 water molecules per DMPC molecule. Simulations are done using AMBER 4.0 package in constant number volume temperature (NVT) condition for 100 pico seconds (ps) in aqueous environment and 250 ps of equilibrated bilayer. Geometric parameters of lipids as: bilayer thickness, order parameter of the chains, transfraction of chain torsional angles were monitored. We also monitored geometric parameters of the peptides as backbone torsional angles, distances amongst C alpha atoms, angles between C alpha atoms, movement of center of gravity (CG) along and perpendicular to bilayer normal. We find that membrane bilayer is slightly disturbed due to the presence of peptides. In case of alam 2 in water angles phi 1 and phi 3 showed larger variation in water compared to same in the bilayer. The peptide conformation is more stable in DMPC bilayer. However the peptides showed movement along and perpendicular to bilayer normal. This we believe is due to hydrophobic nature of these peptides.
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Affiliation(s)
- V Kothekar
- Department of Biophysics, All India Institute of Medical Sciences, New Delhi, India.
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Abdel-Dayem H, Mahajan K, Owuwanne A, Ericsson S, Nawaz K, Kouris K, Higazy E, Awdeh M. The use of 99mTc-DTPA for detection and localization of site of acute gastrointestinal bleeding. Eur J Nucl Med 1988; 14:98-104. [PMID: 3292243 DOI: 10.1007/bf00253449] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Intravenously injected 99mTc-DTPA was evaluated in 64 patients for its efficiency in detecting and localizing sites of acute upper and lower gastrointestinal (G.I.) bleeding. These studies were correlated with endoscopic and surgical findings. There were 34 bleeders and 30 non bleeders giving a sensitivity of 90%, specificity of 82% and accuracy of 86%. Of these, 49 were upper G.I. studies (stomach 21 and duodenum 28) and 15 were lower G.I. studies (small intestine 8, large bowel 7). Of the 49 upper G.I. studies, 27 showed active bleeding while 22 showed no bleeding at the time of the study resulting in a sensitivity of 87.5%, specificity of 76% and accuracy of 82%. Of the 15 lower G.I. studies, 7 were bleeders while 8 were non bleeders. All the lower G.I. bleeding sites were accurately localized with the 99mTc-DTPA. An incidental finding of these studies was the localization of 99mTc-DTPA in the site of inflammatory and malignant lesions of the G.I. tract. Of the 64 studies, 18 inflammatory and malignant lesions were detected with the IV injected 99mTc-DTPA; 10 were bleeders while 8 were non bleeders. Image subtraction of early from delayed images was helpful to differentiate bleeding from non bleeding cases in this last group of studies.
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Affiliation(s)
- H Abdel-Dayem
- Department of Nuclear Medicine, Faculty of Medicine, Kuwait University
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Abdel-Dayem HM, Ziada G, Owunwanne A, Mahajan K, Erickson S, Elwan M. Scintigraphic detection of acute gastrointestinal bleeding using 99Tcm-DTPA. Nucl Med Commun 1984; 5:633-9. [PMID: 6397701 DOI: 10.1097/00006231-198410000-00005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Technetium-99m DTPA is a good agent for detecting sites of acute gastrointestinal bleeding due to its rapid clearance by the kidneys and its stability in the bowel achieving a good target to nontarget ratio. It has been successfully tried for a pilot study. Further evaluation is in progress for its sensitivity. In cases where there is a slow rate of bleeding, we are currently evaluating injection of the dose by infusion, slowly over 15 min instead of the rapid i.v. injection.
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