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Gupta G, Murugesan A, Thanigainathan S, Adhisivam B. Does Early Fortification of Human Milk Decrease Time to Regain Birth Weight as Compared to Late Fortification Among Preterm Infants? - A Randomized Controlled Trial. Indian J Pediatr 2024:10.1007/s12098-024-05066-5. [PMID: 38416365 DOI: 10.1007/s12098-024-05066-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 02/01/2024] [Indexed: 02/29/2024]
Abstract
OBJECTIVES To compare the duration required to regain birth weight following early fortification of human milk vs. late fortification among preterm infants. METHODS This randomized controlled trial included hemodynamically stable 120 preterm infants (≤32 wk of gestation). The intervention and comparator groups received standard fortification with human milk fortifier when enteral feeds reached 30 ml/kg/d (early fortification) and 80 ml/kg/d (late fortification) respectively. Neonates in both the groups received feed increments as per standard NICU protocol. Anthropometric measurements (weight, length, and head circumference) at birth and during postnatal follow-up were done following standard precautions and plotted on the sex-specific Fenton growth charts. Primary outcome was the mean duration required to regain birth weight. Secondary outcomes included weight gain velocity, linear growth, increase in head circumference and occurrence of sepsis, feed intolerance and necrotizing enterocolitis. RESULTS Preterm neonates who received early fortification regained birth weight earlier compared to those in the late fortification group (10.13 ± 2.90 vs. 11.26 ± 3.06, p <0.05). The weight gain velocity, linear growth and increase in head circumference were better in the early fortification group. There was no increased risk of culture proven sepsis, feed intolerance and necrotizing enterocolitis in the early fortification group compared to late fortification. CONCLUSIONS Standard fortification with human milk fortifier when enteral feeds reach 30 ml/kg/d helps preterm neonates regain birth weight earlier. Early fortification is well tolerated and safe for the population studied.
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Affiliation(s)
- Gaurav Gupta
- Department of Neonatology, Jawaharlal Institute of Postgraduate Medical Education & Research (JIPMER), Puducherry, India
| | - A Murugesan
- Department of Neonatology, Jawaharlal Institute of Postgraduate Medical Education & Research (JIPMER), Puducherry, India
| | - S Thanigainathan
- Department of Neonatology, Jawaharlal Institute of Postgraduate Medical Education & Research (JIPMER), Puducherry, India
| | - B Adhisivam
- Department of Neonatology, Jawaharlal Institute of Postgraduate Medical Education & Research (JIPMER), Puducherry, India.
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Kathirvel M, Murugesan A, Sastry A, Adhisivam B. Effect of Electronic Infrared Tap With Voice Reinforcement on Hand Hygiene Compliance of Healthcare Personnel. Indian Pediatr 2023; 60:744-747. [PMID: 37480298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/24/2023]
Abstract
OBJECTIVE To assess the efficacy of an electronic infrared tap with voice reinforcement to improve hand hygiene compliance among health care workers. METHOD This pre-post intervention study used an automated electronic infrared tap with voice reinforcement as intervention in the neonatal intensive care unit (NICU) and the pediatric intensive care unit (PICU). Hand hygiene adherence rates of health care workers were monitored using a video camera. RESULTS A total of 2718 hand hygiene events were observed. Baseline rates of hand hygiene (complete or partial adherence rates) were 86.9% in NICU and 81.2% in PICU, that improved to 94.9% for NICU and 92.9% for PICU post-intervention (P=0.001). CONCLUSION Use of an electronic infrared (EIR) tap with voice reinforcement in handwashing stations of NICU and PICU improved hand hygiene compliance among health care workers.
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Affiliation(s)
- M Kathirvel
- Department of Neonatology, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry
| | - A Murugesan
- Department of Neonatology, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry
| | - Apurba Sastry
- Department of Microbiology, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry
| | - B Adhisivam
- Department of Neonatology, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry. Correspondence to: Dr B Adhisivam, Professor, Department of Neonatology, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry.
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Loganathan M, Raj AS, Murugesan A, Kumar PS. Effective adsorption of crystal violet onto aromatic polyimides: Kinetics and isotherm studies. Chemosphere 2022; 304:135332. [PMID: 35709844 DOI: 10.1016/j.chemosphere.2022.135332] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 06/07/2022] [Accepted: 06/10/2022] [Indexed: 06/15/2023]
Abstract
The motive of this work is to synthesis aromatic polyimides by a two-step poly condensation process and the prepared aromatic polyamides (APIs) is been used as an effective functionalized adsorbent for the removal of carcinogenic crystal violet (CV) from aqueous medium. The adsorption efficiency of the APIs was enhanced by incorporation different functional moieties (varying aromatic dianhydrides with -O-, -(CF3)2-, -(CH3)2-) in the polymer structure. The initial and final concentration of CV was measured using UV-Vis spectrometer. The adsorption process was optimized by varying the parameters such as the effect of solution pH, contact time, initial dye concentration, and adsorbent dosage. Kinetics and isotherms of the adsorption system were appraised using data obtained from effect of contact time and initial dye concentration with corresponding empirical modelling techniques respectively. The evaluated results of the adsorption kinetic studies confirmed that the adsorption of API onto CV is followed a pseudo-second-order kinetic model. The adsorption behaviour and their interactions between APIs and CV are well established. The experimental results of this research output could be confirmed that APIs is a very effective adsorbent for the removal of cationic dye from aqueous.
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Affiliation(s)
- M Loganathan
- Polymer Science and Engineering Lab, Department of Chemistry, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam-603110, India
| | - Arya S Raj
- Polymer Science and Engineering Lab, Department of Chemistry, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam-603110, India
| | - A Murugesan
- Polymer Science and Engineering Lab, Department of Chemistry, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam-603110, India; Centre of Excellence in Water Research (CEWAR), Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam-603110, India.
| | - P Senthil Kumar
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam-603110, India; Centre of Excellence in Water Research (CEWAR), Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam-603110, India
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Grieve S, Puvvada N, Phinyomark A, Russell K, Murugesan A, Zed E, Hassan A, Legare JF, Kienesberger PC, Pulinilkunnil T, Reiman T, Scheme E, Brunt KR. Nanoparticle surface-enhanced Raman spectroscopy as a noninvasive, label-free tool to monitor hematological malignancy. Nanomedicine (Lond) 2021; 16:2175-2188. [PMID: 34547916 DOI: 10.2217/nnm-2021-0076] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Aim: Monitoring minimal residual disease remains a challenge to the effective medical management of hematological malignancies; yet surface-enhanced Raman spectroscopy (SERS) has emerged as a potential clinical tool to do so. Materials & methods: We developed a cell-free, label-free SERS approach using gold nanoparticles (nanoSERS) to classify hematological malignancies referenced against two control cohorts: healthy and noncancer cardiovascular disease. A predictive model was built using machine-learning algorithms to incorporate disease burden scores for patients under standard treatment upon. Results: Linear- and quadratic-discriminant analysis distinguished three cohorts with 69.8 and 71.4% accuracies, respectively. A predictive nanoSERS model correlated (MSE = 1.6) with established clinical parameters. Conclusion: This study offers a proof-of-concept for the noninvasive monitoring of disease progression, highlighting the potential to incorporate nanoSERS into translational medicine.
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Affiliation(s)
- Stacy Grieve
- Department of Biology, University of New Brunswick, Saint John, New Brunswick, Canada.,IMPART investigator team, Canada
| | - Nagaprasad Puvvada
- Department of Pharmacology, Dalhousie University, Saint John, New Brunswick, Canada.,Department of Chemistry, Indrashil University, Gujarat, India
| | - Angkoon Phinyomark
- IMPART investigator team, Canada.,Institute of Biomedical Engineering, University of New Brunswick, Fredericton, New Brunswick, Canada
| | - Kevin Russell
- Faculty of Medicine, Dalhousie University, Saint John, New Brunswick, Canada
| | - Alli Murugesan
- Department of Biology, University of New Brunswick, Saint John, New Brunswick, Canada.,Faculty of Medicine, Dalhousie University, Saint John, New Brunswick, Canada
| | - Elizabeth Zed
- Department of Oncology, Saint John Regional Hospital, Saint John, New Brunswick, Canada
| | - Ansar Hassan
- IMPART investigator team, Canada.,Department of Cardiac Surgery, Saint John Regional Hospital, Saint John, New Brunswick, Canada
| | - Jean-Francois Legare
- IMPART investigator team, Canada.,Department of Cardiac Surgery, Saint John Regional Hospital, Saint John, New Brunswick, Canada
| | - Petra C Kienesberger
- IMPART investigator team, Canada.,Faculty of Medicine, Dalhousie University, Saint John, New Brunswick, Canada.,Department of Biochemistry & Molecular Biology, Dalhousie University, Saint John, New Brunswick, Canada
| | - Thomas Pulinilkunnil
- IMPART investigator team, Canada.,Faculty of Medicine, Dalhousie University, Saint John, New Brunswick, Canada.,Department of Biochemistry & Molecular Biology, Dalhousie University, Saint John, New Brunswick, Canada
| | - Tony Reiman
- Department of Biology, University of New Brunswick, Saint John, New Brunswick, Canada.,IMPART investigator team, Canada.,Faculty of Medicine, Dalhousie University, Saint John, New Brunswick, Canada.,Department of Oncology, Saint John Regional Hospital, Saint John, New Brunswick, Canada
| | - Erik Scheme
- IMPART investigator team, Canada.,Institute of Biomedical Engineering, University of New Brunswick, Fredericton, New Brunswick, Canada.,Faculty of Medicine, Dalhousie University, Saint John, New Brunswick, Canada
| | - Keith R Brunt
- IMPART investigator team, Canada.,Department of Pharmacology, Dalhousie University, Saint John, New Brunswick, Canada.,Faculty of Medicine, Dalhousie University, Saint John, New Brunswick, Canada
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Moorthi M, Murugesan A, Alagumalai A. Enhancement of fuel properties of Manilkara zapota biodiesel blend by doping green-synthesized silver nanoparticles. Appl Nanosci 2021. [DOI: 10.1007/s13204-021-02088-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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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Grieve S, Ding K, Moore J, Finniss M, Ray A, Lees M, Hossain F, Murugesan A, Agar J, Acar C, Taylor J, Shepherd FA, Reiman T. Immunohistochemical validation study of 15-gene biomarker panel predictive of benefit from adjuvant chemotherapy in resected non-small-cell lung cancer: analysis of JBR.10. ESMO Open 2021; 5:S2059-7029(20)30069-7. [PMID: 32220948 PMCID: PMC7174014 DOI: 10.1136/esmoopen-2020-000679] [Citation(s) in RCA: 3] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 02/11/2020] [Accepted: 02/12/2020] [Indexed: 12/18/2022] Open
Abstract
Objective There are no validated approaches to predict benefit from adjuvant chemotherapy for resected patients with non-small-cell lung cancer (NSCLC). The aim of this study was to translate a 15-gene mRNA expression profile published by Zhu et al, shown to be prognostic and predictive of benefit, into a readily applicable immunohistochemistry (IHC) panel. Methods For seven of the genes in the gene expression profile (GEP) for which suitable commercial antibodies were available, we semiquantitatively assessed the IHC expression and prognostic significance for 173 patients treated at the Saint John Regional Hospital (SJRH). Cut-offs for high and low expression were defined for each marker and applied to IHC scores from 291 of the 482 patients in JBR.10, including patients on both the adjuvant chemotherapy and observation arms. The prognostic and predictive value of these markers on overall survival (OS) or recurrence-free survival (RFS) was assessed by Cox regression models. Results In the SJRH cohort, in 62 patients with resected stage II–III NSCLC, the prognostic significance of IHC assays for four proteins were concordant with Zhu’s GEP results. Low FOSL2 (OS, HR=0.15; p=0.0001; RFS, HR=0.14; p<0.0001) and high STMN2 (RFS, HR=2.501; p=0.0197) were adverse prognostic factors. Low ATP1B1 and low TRIM14 expression trended toward worse OS and RFS. Validation of these markers with JBR.10 patients failed to show prognostic significance either individually or in combined risk classifications. Additionally, the interaction between these markers and chemotherapy treatment in predicting OS (FOSL2, p=0.52; STMN2 p=0.14; ATP1B1, p=0.33; TRIM14, p=0.81) or RFS (FOSL2, p=0.63; STMN2, p=0.12; ATP1B1, p=0.66; TRIM14, p=0.57) did not reach significance, individually or in combination panels. Conclusions Zhu’s GEP could not be translated into an IHC panel predictive of benefit from adjuvant chemotherapy. Future predictive biomarker analysis in the adjuvant NSCLC setting may need to focus on novel therapies.
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Affiliation(s)
- Stacy Grieve
- Department of Biology, University of New Brunswick Saint John, Saint John, New Brunswick, Canada
| | - Keyue Ding
- Canadian Cancer Trials Group, Kingston, Ontario, Canada
| | - Jonathan Moore
- Department of Medicine, Dalhousie University, Saint John, New Brunswick, Canada
| | - Mathew Finniss
- Department of Medicine, Dalhousie University, Saint John, New Brunswick, Canada
| | - Ayush Ray
- Department of Biology, University of New Brunswick Saint John, Saint John, New Brunswick, Canada
| | - Miranda Lees
- Department of Biology, University of New Brunswick Saint John, Saint John, New Brunswick, Canada
| | - Faisal Hossain
- Department of Biology, University of New Brunswick Saint John, Saint John, New Brunswick, Canada
| | - Alli Murugesan
- Department of Biology, University of New Brunswick Saint John, Saint John, New Brunswick, Canada.,Department of Medicine, Dalhousie University, Saint John, New Brunswick, Canada
| | - Jane Agar
- Department of Pathology, Saint John Regional Hospital, Saint John, New Brunswick, Canada
| | - Cenk Acar
- Department of Pathology, Saint John Regional Hospital, Saint John, New Brunswick, Canada
| | - James Taylor
- Canadian Cancer Trials Group, Kingston, Ontario, Canada
| | - Frances A Shepherd
- Department of Medical Oncology and Hematology, Princess Margaret Hospital Cancer Centre, University of Toronto, Toronto, Ontario, Canada
| | - Tony Reiman
- Department of Biology, University of New Brunswick Saint John, Saint John, New Brunswick, Canada .,Department of Medicine, Dalhousie University, Saint John, New Brunswick, Canada
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Murugesan A, Lassalle-Claux G, Hogan L, Vaillancourt E, Selka A, Luiker K, Kim MJ, Touaibia M, Reiman T. Antimyeloma Potential of Caffeic Acid Phenethyl Ester and Its Analogues through Sp1 Mediated Downregulation of IKZF1-IRF4-MYC Axis. J Nat Prod 2020; 83:3526-3535. [PMID: 33210536 DOI: 10.1021/acs.jnatprod.0c00350] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Caffeic acid phenethyl ester (CAPE, 2), a natural compound from propolis, is a well-documented antitumor agent with nuclear factor kappa B (NF-κB) inhibitory activity. Key transcription factors regulated by NF-κB, namely, interferon regulatory factor-4 (IRF4) and octameric binding protein-2 (OCT2), are implicated in the tumorigenesis of multiple myeloma (MM), an incurable bone marrow cancer. Adverse effects and resistance to current chemotherapeutics pose a great challenge for MM treatment. Hence, the structure-activity relationships of CAPE (2) and 21 of its analogues were evaluated for their antimyeloma potential. Preclinical evaluation revealed that CAPE (2) and the 3-phenylpropyl (4), 2,5-dihydroxycinnamic acid 3-phenylpropyl ester (17), and 3,4-dihydroxycinnamic ether (22) analogues inhibited human myeloma cell growth. Analogue 4 surpassed CAPE (2) and lenalidomide in showing strong apoptotic effects with a remarkable decrease in IRF4 levels. The analogue 17 exhibited the most potent anti-MM activity. The downregulation of specificity protein 1 (Sp1) and the IKZF1-IRF4-MYC axis by CAPE (2) analogues 4 and 17 revealed their novel mechanism of action. The analogues showed no adverse cytotoxic effects on normal human cells and exhibited appropriate in silico pharmacokinetic properties and drug-likeness. These findings suggest the promising application of CAPE (2) analogues to target Ikaros (IKZF1)/IRF4 addiction, the so-called Achilles heel of myeloma, for better treatment outcomes.
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Affiliation(s)
- Alli Murugesan
- Department of Biology, University of New Brunswick, Saint John, New Brunswick E2L 4L2, Canada
- Faculty of Medicine, Halifax, NS, Dalhousie Medicine NB, Saint John, New Brunswick E2L 4L2, Canada
| | - Grégoire Lassalle-Claux
- Department of Chemistry and Biochemistry, Université de Moncton, Moncton, New Brunswick E1A 3E9 Canada
| | - Lauren Hogan
- Department of Biology, University of New Brunswick, Saint John, New Brunswick E2L 4L2, Canada
| | - Elise Vaillancourt
- Department of Biology, University of New Brunswick, Saint John, New Brunswick E2L 4L2, Canada
| | - Ayyoub Selka
- Department of Chemistry and Biochemistry, Université de Moncton, Moncton, New Brunswick E1A 3E9 Canada
| | - Katie Luiker
- Department of Biology, University of New Brunswick, Saint John, New Brunswick E2L 4L2, Canada
| | - Min Ji Kim
- Department of Biology, University of New Brunswick, Saint John, New Brunswick E2L 4L2, Canada
| | - Mohamed Touaibia
- Department of Chemistry and Biochemistry, Université de Moncton, Moncton, New Brunswick E1A 3E9 Canada
| | - Tony Reiman
- Department of Biology, University of New Brunswick, Saint John, New Brunswick E2L 4L2, Canada
- Faculty of Medicine, Halifax, NS, Dalhousie Medicine NB, Saint John, New Brunswick E2L 4L2, Canada
- Department of Oncology, Saint John Regional Hospital, Saint John, New Brunswick E2L 4L2, Canada
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Murugesan A, Ibegbu C, Styles T, Hicks S, Reddy P, Sabula M, Jones A, Shankar E, Amara R, Velu V. MAIT cells (TCR7.2+CD161++CD8+) are functionally impaired during chronic SHIV infection. Int J Infect Dis 2020. [DOI: 10.1016/j.ijid.2020.09.752] [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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Murugesan A, Lasalle-Claux G, Hogan L, Vaillancourt E, Selka A, Luiker K, Hong A, Kim M, Touaibia M, Reiman T. Abstract 6559: Novel anti-myeloma potential of CAPE analogs: Downregulation of IKZF1-IRF4-MYC axis. Cancer Res 2020. [DOI: 10.1158/1538-7445.am2020-6559] [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
Background: Multiple myeloma (MM) is the second most common hematological malignancy and an incurable bone marrow cancer so far. The hallmark of myeloma is chromosomal translocations that transform plasma cells into malignant myeloma cells. 50-75% of myeloma patients exhibit translocations at the immunoglobulin heavy chain (IgH) locus juxtaposing oncogenes from partner chromosome under the control of strong 3' IgH enhancers. Overexpression of oncogenes such as Cyclin D1, Cyclin D3, interferon regulatory factor (IRF4) etc. occurs, depending on the translocating partner locus. We have earlier reported that elevated expression of octameric binding protein-2 (OCT2), a key transcription factor in IgH translocations as a poor prognostic factor and shown its association with reduced survival in MM patients. IRF4 is another indispensable transcription factor for plasma cell differentiation, and its juxtaposition with IgH locus leads to IRF4 overexpression mediated tumorigenesis. Both OCT2 and IRF4 are regulated by the transcription factor, nuclear factor kappa B (NF-κB). Current chemotherapeutics exhibit several side effects, and face the challenge of chemoresistance, thus warranting the need for novel therapeutics for myeloma. Caffeic acid phenethyl ester (CAPE) is an active principle of propolis from honeybee hives, with potent NF-κB inhibitory activity. Hence, we synthesized and evaluated the structure-activity relationship of twenty-one CAPE analogs for their anti-myeloma potential.
Methods: Human myeloma cell lines, lenalidomide, CAPE and its analogs were used for the study. Myeloma cell growth inhibition by CAPE analogs was determined by PrestoBlue cell viability assays. Effect of CAPE analogs on IRF4, OCT2, CyclinD3, caspase-3, Ikaros (IKZF1), MYC levels were evaluated by qRT-PCR and/or immunoblotting methods; apoptosis induction detected by Annexin V-PI flow cytometry assays.
Results: Cyclohexylethyl and two phenpropyl ester analogs exhibited high myeloma cell growth inhibition in comparison with CAPE and lenalidomide. IRF4 was significantly downregulated both at mRNA and protein levels by the phenpropyl ester analog that demonstrated a remarkable increase in cleaved caspase-3 levels and apoptotic cell number. For the first time, we have demonstrated the ability of CAPE analogs to decrease OCT2, IKZF1, IRF4 and MYC levels in myeloma cells. Downregulation of the IKZF1-IRF4-MYC axis by CAPE and its key analogs revealed their novel anti-myeloma mechanism of action. Furthermore, the lead analogs showed no adverse cytotoxic effect on normal human mononuclear or naïve B-cells, also exhibited appropriate in silico pharmacokinetic properties and drug-likeness.
Conclusion: Thus, our findings suggest the promising application of CAPE analogs to target Ikaros/IRF4 addiction, the so-called Achilles heel of myeloma, thereby leading to better therapeutic outcomes.
Citation Format: Alli Murugesan, Gregoire Lasalle-Claux, Lauren Hogan, Elise Vaillancourt, Ayyoub Selka, Katie Luiker, Andy Hong, MinJi Kim, Mohamed Touaibia, Tony Reiman. Novel anti-myeloma potential of CAPE analogs: Downregulation of IKZF1-IRF4-MYC axis [abstract]. In: Proceedings of the Annual Meeting of the American Association for Cancer Research 2020; 2020 Apr 27-28 and Jun 22-24. Philadelphia (PA): AACR; Cancer Res 2020;80(16 Suppl):Abstract nr 6559.
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Affiliation(s)
- Alli Murugesan
- 1University of New Brunswick, Saint John, New Brunswick, Canada
| | | | - Lauren Hogan
- 1University of New Brunswick, Saint John, New Brunswick, Canada
| | | | - Ayyoub Selka
- 2Universite de Moncton, Moncton, New Brunswick, Canada
| | - Katie Luiker
- 1University of New Brunswick, Saint John, New Brunswick, Canada
| | - Andy Hong
- 3Dalhousie Medicine New Brunswick, Saint John, New Brunswick, Canada
| | - MinJi Kim
- 1University of New Brunswick, Saint John, New Brunswick, Canada
| | | | - Tony Reiman
- 1University of New Brunswick, Saint John, New Brunswick, Canada
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Vijayakumar C, Ramesh M, Murugesan A, Panneerselvam N, Subramaniam D, Bharathiraja M. Biodiesel from plant seed oils as an alternate fuel for compression ignition engines-a review. Environ Sci Pollut Res Int 2016; 23:24711-24730. [PMID: 27743330 DOI: 10.1007/s11356-016-7754-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Accepted: 09/20/2016] [Indexed: 06/06/2023]
Abstract
The modern scenario reveals that the world is facing energy crisis due to the dwindling sources of fossil fuels. Environment protection agencies are more concerned about the atmospheric pollution due to the burning of fossil fuels. Alternative fuel research is getting augmented because of the above reasons. Plant seed oils (vegetable oils) are cleaner, sustainable, and renewable. So, it can be the most suitable alternative fuel for compression ignition (CI) engines. This paper reviews the availability of different types of plant seed oils, several methods for production of biodiesel from vegetable oils, and its properties. The different types of oils considered in this review are cashew nut shell liquid (CNSL) oil, ginger oil, eucalyptus oil, rice bran oil, Calophyllum inophyllum, hazelnut oil, sesame oil, clove stem oil, sardine oil, honge oil, polanga oil, mahua oil, rubber seed oil, cotton seed oil, neem oil, jatropha oil, egunsi melon oil, shea butter, linseed oil, Mohr oil, sea lemon oil, pumpkin oil, tobacco seed oil, jojoba oil, and mustard oil. Several methods for production of biodiesel are transesterification, pre-treatment, pyrolysis, and water emulsion are discussed. The various fuel properties considered for review such as specific gravity, viscosity, calorific value, flash point, and fire point are presented. The review also portrays advantages, limitations, performance, and emission characteristics of engine using plant seed oil biodiesel are discussed. Finally, the modeling and optimization of engine for various biofuels with different input and output parameters using artificial neural network, response surface methodology, and Taguchi are included.
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Affiliation(s)
- C Vijayakumar
- Department of Mechatronics Engineering, K. S. Rangasamy College of Technology, Tiruchengode, Tamilnadu, 637215, India.
| | - M Ramesh
- Department of Mechatronics Engineering, K. S. Rangasamy College of Technology, Tiruchengode, Tamilnadu, 637215, India
| | - A Murugesan
- Department of Mechanical Engineering, K .S. Rangasamy College of Technology, Tiruchengode, Tamilnadu, 637215, India
| | - N Panneerselvam
- Department of Mechanical Engineering, Mahendra Institute of Technology, Mallasamuthram, Tamilnadu, 637503, India
| | - D Subramaniam
- Department of Mechanical Engineering, K .S. Rangasamy College of Technology, Tiruchengode, Tamilnadu, 637215, India
| | - M Bharathiraja
- Department of Mechatronics Engineering, K. S. Rangasamy College of Technology, Tiruchengode, Tamilnadu, 637215, India
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Murugesan A, Tremblay P, Han M, Ray B, Lutes T, Reiman T. Abstract 3791: TRPV6 calcium channel peptide antagonists as novel antimyeloma and antiresorptive agents. Cancer Res 2016. [DOI: 10.1158/1538-7445.am2016-3791] [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
Background: Multiple myeloma and its associated bone disease are generally incurable. Hence, better therapies are needed, ideally targeting biomolecules implicated in the aberrant biology of the disease. Overexpression of transient receptor potential cation channel TRPV6, a highly selective calcium channel has been observed in breast, colon, thyroid, ovary and prostate cancer tissues, and in several tumour cell lines. TRPV6 expression has also been seen in osteoclasts, however its role in bone metabolism remains unclear. The reciprocal interaction between osteoclasts and myeloma cells is pivotal to the generation of bone lesions that characterize myeloma. While myeloma cells secrete factors promoting osteoclast activity, osteoclasts in turn are known to induce myeloma cell growth and survival. The TRPV6 peptide antagonist SOR-C13 is currently in phase I clinical trials as an anti-cancer therapy for advanced cancers. We investigated the expression and potential therapeutic significance of TRPV6 in human osteoclasts and myeloma cells using shrew venom derived peptide antagonists. Methods: High affinity TRPV6 peptide antagonists SOR-C13 and SOR-C27 derived from the C-terminus of venom from the short-tailed shrew, Blarina brevicauda were used. Human primary osteoclasts were generated in vitro from human bone marrow (BM) aspirates; characterized by Hoechst-phalloidin staining, Tartrate resistant acid phosphatase (TRAP) staining, TRAP enzyme activity and Cathepsin K expression. CD138 positive myeloma cells were isolated from patient bone marrow specimens by EasySep immunomagnetic separation, or examined in tissue microarrays of patient BM core biopsies. TRPV6 expression in primary human osteoclasts, myeloma cell lines and myeloma patient BM microarray was checked by qPCR, immunohistochemistry or immunoblotting. Anti-resorptive potential of SOR peptides using human osteoclasts was evaluated in Osteoassay plates that mimic bone, and myeloma cell growth inhibition was determined by prestoblue cell viability assays. Results: We found strong expression of TRPV6 protein in human myeloma cells and osteoclasts by immunohistochemical staining on myeloma patient bone marrow sections. Human osteoclasts generated in vitro and CD138 positive myeloma patient bone marrow plasma cells were found to express TRPV6. We saw dose-dependent inhibition of osteoclast activity in vitro by SOR-C13 and SOR-C27, including markedly reduced osteoclast formation, decreased TRAP activity and reduced osteoassay surface resorption. TRPV6 peptide antagonists were also found to inhibit the growth of human myeloma cell lines U266 and KMM-1. Conclusion: Anti-myeloma and anti-osteoclast activity of human TRPV6 antagonist peptides was seen in the current study. Taken together, our findings suggest a novel therapeutic approach for multiple myeloma involving TRPV6 inhibition to target both myeloma cells and osteoclasts.
Citation Format: Alli Murugesan, Philippe Tremblay, Ming Han, Bithika Ray, Tyler Lutes, Tony Reiman. TRPV6 calcium channel peptide antagonists as novel antimyeloma and antiresorptive agents. [abstract]. In: Proceedings of the 107th Annual Meeting of the American Association for Cancer Research; 2016 Apr 16-20; New Orleans, LA. Philadelphia (PA): AACR; Cancer Res 2016;76(14 Suppl):Abstract nr 3791.
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Affiliation(s)
- Alli Murugesan
- 1University of New Brunswick, Saint John, New Brunswick, Canada
| | | | - Ming Han
- 1University of New Brunswick, Saint John, New Brunswick, Canada
| | - Bithika Ray
- 1University of New Brunswick, Saint John, New Brunswick, Canada
| | - Tyler Lutes
- 3Soricimed Biopharma Inc, Sackville, New Brunswick, Canada
| | - Tony Reiman
- 4Saint John Regional Hospital, Horizon Health Network, Saint John, New Brunswick, Canada
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DiPasquale AM, Rahmeh T, Andrew L, Agar J, Miller K, Finniss M, Murugesan A, Reiman A. Abstract 3405: The analysis of TRPV6 expression in lymphoid tumours. Cancer Res 2016. [DOI: 10.1158/1538-7445.am2016-3405] [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
Introduction:
TRPV6 is a calcium channel that is found overexpressed in various malignancies and is correlated with the prognosis of patients with prostate cancer. TRPV6 targeted anticancer therapies are in development. We are interested in the potential of TRPV6 as a potential biomarker and therapeutic target in lymphoma. This retrospective study examines the expression levels of TRPV6 in various lymphoid tumour types, and correlates expression levels with grade, prognostic scores, and survival rates.
Methods:
A clinical-pathological database was constructed using the health records and lymphoid tumor samples of patients diagnosed with diffuse large B-cell lymphoma (DLBCL), Follicular lymphoma (FL), small lymphocytic lymphoma/chronic lymphocytic leukemia (SLL/CLL), and Hodgkin's lymphoma (HL). Immunohistochemical studies were performed on lymphoid tumor samples to analyze the level of TRPV6 expression. Tumor samples were graded on a 3-point scale. A score of +3 indicated dense staining with high expression levels, and a score of +1 indicated minimal staining with low expression levels. TRPV6 expression levels were correlated with prognostic scores (IPI, FLIPI) and survival rates using Chi-squared, Mantel-Cox, and Kaplan-Meier survival curves. Descriptive statistics were used to describe patient demographics.
Results:
We found high TRPV6 expression levels in DLBCL and HL tumor samples with > 40% of samples scoring +3. We found low TRPV6 expression levels in FL and SLL/CLL with > 40% of samples scoring +1. We found no significant correlation between the level of TRPV6 expression and prognostic scores or survival rates in any of the lymphoma subtypes studied. In follicular lymphoma tumor samples, it was noted on observation that the large tumor cells generally stained +3 while the small tumor cells generally stained +1.
Conclusion:
This retrospective study showed DLBCL and HL tumors have high levels of TRPV6 expression. It also showed that TRPV6 is found highly expressed in the large transformed cells (centroblasts) in follicular lymphoma. These results demonstrate a need to further assess the role of TRPV6 in the aggressiveness of follicular lymphoma, as well as the prognosis and survival in DLBCL and HL with a larger sample size. Further studies of the potential of TRPV6 as a therapeutic target in lymphoma will focus on DLBCL, high grade/transformed FL, and HL.
Citation Format: Ashley M. DiPasquale, Tarek Rahmeh, Lauren Andrew, Jane Agar, Kim Miller, Matthew Finniss, Alli Murugesan, Anthony Reiman. The analysis of TRPV6 expression in lymphoid tumours. [abstract]. In: Proceedings of the 107th Annual Meeting of the American Association for Cancer Research; 2016 Apr 16-20; New Orleans, LA. Philadelphia (PA): AACR; Cancer Res 2016;76(14 Suppl):Abstract nr 3405.
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Affiliation(s)
| | - Tarek Rahmeh
- 2Saint John Regional Hospital, Saint John, New Brunswick, Canada
| | - Lauren Andrew
- 1Dalhousie University, Saint John, New Brunswick, Canada
| | - Jane Agar
- 2Saint John Regional Hospital, Saint John, New Brunswick, Canada
| | - Kim Miller
- 2Saint John Regional Hospital, Saint John, New Brunswick, Canada
| | | | - Alli Murugesan
- 3University of New Brunswick, Saint John, New Brunswick, Canada
| | - Anthony Reiman
- 1Dalhousie University, Saint John, New Brunswick, Canada
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Hay AE, Murugesan A, DiPasquale AM, Kouroukis T, Sandhu I, Kukreti V, Bahlis NJ, Lategan J, Reece DE, Lyons JF, Sederias J, Xu H, Powers J, Seymour LK, Reiman T. A phase II study of AT9283, an aurora kinase inhibitor, in patients with relapsed or refractory multiple myeloma: NCIC clinical trials group IND.191. Leuk Lymphoma 2015; 57:1463-6. [PMID: 26376958 DOI: 10.3109/10428194.2015.1091927] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Annette E Hay
- a NCIC Clinical Trials Group, Queen's University , Kingston , ON , Canada
| | - Alli Murugesan
- b Department of Biology , University of New Brunswick , Saint John , NB , Canada
| | | | | | - Irwindeep Sandhu
- e Department of Medicine, Division of Hematology , University of Alberta , Edmonton , AB , Canada
| | - Vishal Kukreti
- f Department of Medical Oncology and Hematology , Princess Margaret Cancer Centre , Toronto , ON , Canada
| | - Nizar J Bahlis
- g Division of Hematology and Hematologic Malignancies , University of Calgary , Calgary , AB , Canada
| | - Johan Lategan
- g Division of Hematology and Hematologic Malignancies , University of Calgary , Calgary , AB , Canada
| | - Donna E Reece
- f Department of Medical Oncology and Hematology , Princess Margaret Cancer Centre , Toronto , ON , Canada
| | - John F Lyons
- h Astex Pharmaceuticals, Inc. , Dublin , CA , USA , and
| | - Joana Sederias
- a NCIC Clinical Trials Group, Queen's University , Kingston , ON , Canada
| | - Hao Xu
- a NCIC Clinical Trials Group, Queen's University , Kingston , ON , Canada
| | - Jean Powers
- a NCIC Clinical Trials Group, Queen's University , Kingston , ON , Canada
| | - Lesley K Seymour
- a NCIC Clinical Trials Group, Queen's University , Kingston , ON , Canada
| | - Tony Reiman
- b Department of Biology , University of New Brunswick , Saint John , NB , Canada .,i Department of Oncology, Saint John Regional Hospital and Department of Medicine , Dalhousie University , Saint John , NB , Canada
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Mathew MM, Han NV, Murugesan A, Raj EA, Prasanth KG. Evaluation of the protective effect of Pterocarpus marsupium on acetic acid-induced ulcerative colitis in rats. Inflammopharmacology 2015; 23:195-201. [PMID: 25991550 DOI: 10.1007/s10787-015-0234-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2015] [Accepted: 04/17/2015] [Indexed: 12/17/2022]
Abstract
The aim of the study was to evaluate the effect of Pterocarpus marsupium (PM) on acetic acid (AA)-induced ulcerative colitis (UC) in rats. The rats were divided into five groups, each having six rats. PM extract 100 mg and 200 mg/kg was given orally to groups four and five, respectively, and standard drug sulfasalazine (100 mg/kg, p.o) to group three. Group two served as UC control animals, and group one control animals received vehicle for 7 days. UC was induced by administering AA (3 % v/v of 2 ml) to all the animals except group one. After 72 h, the animals were killed and the colon was dissected out for microscopic, clinical evaluation, histopathological study and biochemical estimation. PM (100 and 200 mg/kg)-treated group had significantly reduced colon inflammation and mucosal damage. The treatment also normalized the altered antioxidant enzyme levels (LPO, SOD and GSH). Histopathological studies support the effect. The protective effect of PM may be due to antiinflammatory and antioxidant properties.
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Affiliation(s)
- Merin Maria Mathew
- Department of Pharmacology, PSG College of Pharmacy, PO BOX NO 1674, Peelamedu, Coimbatore, 641004, Tamilnadu, India
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Murugesan A, Meenarathi B, Palanikumar S, Kannammal L, Anbarasan R. Synthesis, Characterization and Applications of Poly(sulfanilic acid)-Based Triblock Copolymer. Adv Polym Technol 2015. [DOI: 10.1002/adv.21522] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- A. Murugesan
- Department of Polymer Technology; Kamaraj College of Engineering and Technology; Virudhunagar 626 001 India
| | - B. Meenarathi
- Department of Polymer Technology; Kamaraj College of Engineering and Technology; Virudhunagar 626 001 India
| | - S. Palanikumar
- Department of Polymer Technology; Kamaraj College of Engineering and Technology; Virudhunagar 626 001 India
| | - L. Kannammal
- Department of Polymer Technology; Kamaraj College of Engineering and Technology; Virudhunagar 626 001 India
| | - R. Anbarasan
- Department of Polymer Technology; Kamaraj College of Engineering and Technology; Virudhunagar 626 001 India
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Vidhyadevi T, Murugesan A, Kirupha SD, Baskaralingam P, Ravikumar L, Sivanesan S. Adsorption of Congo Red Dye over Pendent Chlorobenzylidine Rings Present on Polythioamide Resin: Kinetic and Equilibrium Studies. SEP SCI TECHNOL 2013. [DOI: 10.1080/01496395.2012.726306] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Ravikumar L, Kalaivani SS, Murugesan A, Vidhyadevi T, Karthik G, Kirupha SD, Sivanesan S. Synthesis, characterization, and heavy metal ion adsorption studies of polyamides, polythioamides having pendent chlorobenzylidine rings. J Appl Polym Sci 2011. [DOI: 10.1002/app.33968] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Lakshmi Narasimhan R, Murugesan A, Archana H, Abishek-Nair R, Ajithesh S, Vengatesan A, Rajamani V. PO24-TH-36 A flashy tool for parkinsonism. J Neurol Sci 2009. [DOI: 10.1016/s0022-510x(09)71121-9] [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: 10/20/2022]
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Omar E, Murugesan A, Bakar NHA, Wan Z. Non-ulcerative soft tissue mycosis of long duration mimicking soft tissue sarcoma--a case report. Southeast Asian J Trop Med Public Health 2005; 36:1530-2. [PMID: 16610657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Soft tissue mycosis usually presents with a triad of tumefaction, suppuration and ulceration. We report an unusual case of soft tissue mycosis in a 42-year-old male teacher who presented with painless swelling over the anterolateral aspect of the right shin for 4 years duration.
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Affiliation(s)
- E Omar
- Department of Pathology, School of Medical Sciences, University Science Malaysia, Kubang Kerian, Kelantan, Malaysia.
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Ebrahim AS, Gopalakrishnan R, Murugesan A, Sakthisekaran D. In vivo effect of vitamin E on serum and tissue glycoprotein levels in perchloroethylene induced cytotoxicity. Mol Cell Biochem 1995; 144:13-8. [PMID: 7791740 DOI: 10.1007/bf00926735] [Citation(s) in RCA: 7] [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: 01/27/2023]
Abstract
The antioxidant efficacy of vitamin E on Perchloroethylene (PER) induced cytotoxicity has been studied in rats. Feeding PER to rats for 42 days using sesame oil as vehicle alters total protein and protein bound carbohydrate components in liver and kidney of experimental animals. Supplementation of vitamin E prevented the changes observed in total protein and protein bound carbohydrate components of PER administered rats. Histopathological studies also show the effectiveness of vitamin E on PER administered rats in protecting the cellular architecture of liver and kidney from PER induced cytotoxicity.
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Affiliation(s)
- A S Ebrahim
- Department of Medical Biochemistry, Post Graduate Institute of Basic Medical Sciences, University of Madras, India
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Abstract
Two patients with coexisting neurofibromatosis and hyperparathyroidism are described, bringing the total number of such cases in the world literature to seven. Other more classic examples of the association of tumorous conditions of neuroectodermal and entodermal origin are discussed to support the suggestion that the association of these two diseases may be another variant of multiple endocrine neoplasia type 2 (MEN2b). It may be clinically profitable to investigate all patients with either disease in order to uncover their coexistence.
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