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Malik M, Das S, Chakraborty P, Paul P, Roy R, Das Gupta A, Sarkar S, Chatterjee S, Maity A, Dasgupta M, Sarker RK, Tribedi P. Application of cuminaldehyde and ciprofloxacin for the effective control of biofilm assembly of Pseudomonas aeruginosa: A combinatorial study. Microb Pathog 2024; 190:106624. [PMID: 38492828 DOI: 10.1016/j.micpath.2024.106624] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 02/28/2024] [Accepted: 03/14/2024] [Indexed: 03/18/2024]
Abstract
Pseudomonas aeruginosa is widely associated with biofilm-mediated antibiotic resistant chronic and acute infections which constitute a persistent healthcare challenges. Addressing this threat requires exploration of novel therapeutic strategies involving the combination of natural compounds and conventional antibiotics. Hence, our study has focused on two compounds; cuminaldehyde and ciprofloxacin, which were strategically combined to target the biofilm challenge of P. aeruginosa. The minimum inhibitory concentration (MIC) of cuminaldehyde and ciprofloxacin was found to be 400 μg/mL and 0.4 μg/mL, respectively. Moreover, the fractional inhibitory concentration index (FICI = 0.62) indicated an additive interaction prevailed between cuminaldehyde and ciprofloxacin. Subsequently, sub-MIC doses of cuminaldehyde (25 μg/mL) and ciprofloxacin (0.05 μg/mL) were selected for an array of antibiofilm assays which confirmed their biofilm inhibitory potential without exhibiting any antimicrobial activity. Furthermore, selected doses of the mentioned compounds could manage biofilm on catheter surface by inhibiting and disintegrating existing biofilm. Additionally, the test combination of the mentioned compounds reduced virulence factors secretion, accumulated reactive oxygen species and increased cell-membrane permeability. Thus, the combination of cuminaldehyde and ciprofloxacin demonstrates potential in combating biofilm-associated Pseudomonal threats.
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Affiliation(s)
- Moumita Malik
- Microbial Ecology Research Laboratory, Department of Biotechnology, The Neotia University, Sarisha, West Bengal, 743368, India.
| | - Sharmistha Das
- Microbial Ecology Research Laboratory, Department of Biotechnology, The Neotia University, Sarisha, West Bengal, 743368, India.
| | - Poulomi Chakraborty
- Microbial Ecology Research Laboratory, Department of Biotechnology, The Neotia University, Sarisha, West Bengal, 743368, India.
| | - Payel Paul
- Microbial Ecology Research Laboratory, Department of Biotechnology, The Neotia University, Sarisha, West Bengal, 743368, India.
| | - Ritwik Roy
- Microbial Ecology Research Laboratory, Department of Biotechnology, The Neotia University, Sarisha, West Bengal, 743368, India.
| | - Anirban Das Gupta
- Microbial Ecology Research Laboratory, Department of Biotechnology, The Neotia University, Sarisha, West Bengal, 743368, India.
| | - Sarita Sarkar
- Microbial Ecology Research Laboratory, Department of Biotechnology, The Neotia University, Sarisha, West Bengal, 743368, India.
| | - Sudipta Chatterjee
- Microbial Ecology Research Laboratory, Department of Biotechnology, The Neotia University, Sarisha, West Bengal, 743368, India.
| | - Alakesh Maity
- Microbial Ecology Research Laboratory, Department of Biotechnology, The Neotia University, Sarisha, West Bengal, 743368, India.
| | - Monikankana Dasgupta
- Microbial Ecology Research Laboratory, Department of Biotechnology, The Neotia University, Sarisha, West Bengal, 743368, India.
| | - Ranojit Kumar Sarker
- Microbial Ecology Research Laboratory, Department of Biotechnology, The Neotia University, Sarisha, West Bengal, 743368, India.
| | - Prosun Tribedi
- Microbial Ecology Research Laboratory, Department of Biotechnology, The Neotia University, Sarisha, West Bengal, 743368, India.
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Das S, Malik M, Dastidar DG, Roy R, Paul P, Sarkar S, Chakraborty P, Maity A, Dasgupta M, Gupta AD, Chatterjee S, Sarker RK, Maiti D, Tribedi P. Piperine, a phytochemical prevents the biofilm city of methicillin-resistant Staphylococcus aureus: A biochemical approach to understand the underlying mechanism. Microb Pathog 2024; 189:106601. [PMID: 38423404 DOI: 10.1016/j.micpath.2024.106601] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 02/21/2024] [Indexed: 03/02/2024]
Abstract
Methicillin-resistant Staphylococcus aureus (MRSA), a drug-resistant human pathogen causes several nosocomial as well as community-acquired infections involving biofilm machinery. Hence, it has gained a wide interest within the scientific community to impede biofilm-induced MRSA-associated health complications. The current study focuses on the utilization of a natural bioactive compound called piperine to control the biofilm development of MRSA. Quantitative assessments like crystal violet, total protein recovery, and fluorescein-di-acetate (FDA) hydrolysis assays, demonstrated that piperine (8 and 16 μg/mL) could effectively compromise the biofilm formation of MRSA. Light and scanning electron microscopic image analysis confirmed the same. Further investigation revealed that piperine could reduce extracellular polysaccharide production by down-regulating the expression of icaA gene. Besides, piperine could reduce the cell-surface hydrophobicity of MRSA, a crucial factor of biofilm formation. Moreover, the introduction of piperine could interfere with microbial motility indicating the interaction of piperine with the quorum-sensing components. A molecular dynamics study showed a stable binding between piperine and AgrA protein (regulator of quorum sensing) suggesting the possible meddling of piperine in quorum-sensing of MRSA. Additionally, the exposure to piperine led to the accumulation of intracellular reactive oxygen species (ROS) and potentially heightened cell membrane permeability in inhibiting microbial biofilm formation. Besides, piperine could reduce the secretion of diverse virulence factors from MRSA. Further exploration revealed that piperine interacted with extracellular DNA (e-DNA), causing disintegration by weakening the biofilm architecture. Conclusively, this study suggests that piperine could be a potential antibiofilm molecule against MRSA-associated biofilm infections.
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Affiliation(s)
- Sharmistha Das
- Microbial Ecology Research Laboratory, Department of Biotechnology, The Neotia University, Sarisha, West Bengal, 743368, India.
| | - Moumita Malik
- Microbial Ecology Research Laboratory, Department of Biotechnology, The Neotia University, Sarisha, West Bengal, 743368, India.
| | - Debabrata Ghosh Dastidar
- Guru Nanak Institute of Pharmaceutical Science and Technology, 157/F Nilgunj Road, Panihati, Kolkata, West Bengal, 700114, India.
| | - Ritwik Roy
- Microbial Ecology Research Laboratory, Department of Biotechnology, The Neotia University, Sarisha, West Bengal, 743368, India.
| | - Payel Paul
- Microbial Ecology Research Laboratory, Department of Biotechnology, The Neotia University, Sarisha, West Bengal, 743368, India.
| | - Sarita Sarkar
- Microbial Ecology Research Laboratory, Department of Biotechnology, The Neotia University, Sarisha, West Bengal, 743368, India.
| | - Poulomi Chakraborty
- Microbial Ecology Research Laboratory, Department of Biotechnology, The Neotia University, Sarisha, West Bengal, 743368, India.
| | - Alakesh Maity
- Microbial Ecology Research Laboratory, Department of Biotechnology, The Neotia University, Sarisha, West Bengal, 743368, India.
| | - Monikankana Dasgupta
- Microbial Ecology Research Laboratory, Department of Biotechnology, The Neotia University, Sarisha, West Bengal, 743368, India.
| | - Anirban Das Gupta
- Microbial Ecology Research Laboratory, Department of Biotechnology, The Neotia University, Sarisha, West Bengal, 743368, India.
| | - Sudipta Chatterjee
- Microbial Ecology Research Laboratory, Department of Biotechnology, The Neotia University, Sarisha, West Bengal, 743368, India.
| | - Ranojit Kumar Sarker
- Microbial Ecology Research Laboratory, Department of Biotechnology, The Neotia University, Sarisha, West Bengal, 743368, India.
| | - Debasish Maiti
- Department of Human Physiology, Tripura University, Suryamaninagar, Agartala, Tripura, 799022, India.
| | - Prosun Tribedi
- Microbial Ecology Research Laboratory, Department of Biotechnology, The Neotia University, Sarisha, West Bengal, 743368, India.
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Roy R, Paul P, Chakraborty P, Malik M, Das S, Chatterjee S, Maity A, Dasgupta M, Sarker RK, Sarkar S, Das Gupta A, Tribedi P. Cuminaldehyde and Tobramycin Forestall the Biofilm Threats of Staphylococcus aureus: A Combinatorial Strategy to Evade the Biofilm Challenges. Appl Biochem Biotechnol 2024:10.1007/s12010-024-04914-6. [PMID: 38526664 DOI: 10.1007/s12010-024-04914-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/04/2024] [Indexed: 03/27/2024]
Abstract
Staphylococcus aureus, an opportunistic Gram-positive pathogen, is known for causing various infections in humans, primarily by forming biofilms. The biofilm-induced antibiotic resistance has been considered a significant medical threat. Combinatorial therapy has been considered a reliable approach to combat antibiotic resistance by using multiple antimicrobial agents simultaneously, targeting bacteria through different mechanisms of action. To this end, we examined the effects of two molecules, cuminaldehyde (a natural compound) and tobramycin (an antibiotic), individually and in combination, against staphylococcal biofilm. Our experimental observations demonstrated that cuminaldehyde (20 μg/mL) in combination with tobramycin (0.05 μg/mL) exhibited efficient reduction in biofilm formation compared to their individual treatments (p < 0.01). Additionally, the combination showed an additive interaction (fractional inhibitory concentration value 0.66) against S. aureus. Further analysis revealed that the effective combination accelerated the buildup of reactive oxygen species (ROS) and increased the membrane permeability of the bacteria. Our findings also specified that the cuminaldehyde in combination with tobramycin efficiently reduced biofilm-associated pathogenicity factors of S. aureus, including fibrinogen clumping ability, hemolysis property, and staphyloxanthin production. The selected concentrations of tobramycin and cuminaldehyde demonstrated promising activity against the biofilm development of S. aureus on catheter models without exerting antimicrobial effects. In conclusion, the combination of tobramycin and cuminaldehyde presented a successful strategy for combating staphylococcal biofilm-related healthcare threats. This combinatorial approach holds the potential for controlling biofilm-associated infections caused by S. aureus.
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Affiliation(s)
- Ritwik Roy
- Microbial Ecology Research Laboratory, Department of Biotechnology, The Neotia University, Sarisha, West Bengal, 743368, India
| | - Payel Paul
- Microbial Ecology Research Laboratory, Department of Biotechnology, The Neotia University, Sarisha, West Bengal, 743368, India
| | - Poulomi Chakraborty
- Microbial Ecology Research Laboratory, Department of Biotechnology, The Neotia University, Sarisha, West Bengal, 743368, India
| | - Moumita Malik
- Microbial Ecology Research Laboratory, Department of Biotechnology, The Neotia University, Sarisha, West Bengal, 743368, India
| | - Sharmistha Das
- Microbial Ecology Research Laboratory, Department of Biotechnology, The Neotia University, Sarisha, West Bengal, 743368, India
| | - Sudipta Chatterjee
- Microbial Ecology Research Laboratory, Department of Biotechnology, The Neotia University, Sarisha, West Bengal, 743368, India
| | - Alakesh Maity
- Microbial Ecology Research Laboratory, Department of Biotechnology, The Neotia University, Sarisha, West Bengal, 743368, India
| | - Monikankana Dasgupta
- Microbial Ecology Research Laboratory, Department of Biotechnology, The Neotia University, Sarisha, West Bengal, 743368, India
| | - Ranojit Kumar Sarker
- Microbial Ecology Research Laboratory, Department of Biotechnology, The Neotia University, Sarisha, West Bengal, 743368, India
| | - Sarita Sarkar
- Microbial Ecology Research Laboratory, Department of Biotechnology, The Neotia University, Sarisha, West Bengal, 743368, India
| | - Anirban Das Gupta
- Microbial Ecology Research Laboratory, Department of Biotechnology, The Neotia University, Sarisha, West Bengal, 743368, India
| | - Prosun Tribedi
- Microbial Ecology Research Laboratory, Department of Biotechnology, The Neotia University, Sarisha, West Bengal, 743368, India.
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Urias E, Weil CR, Maity A, Tao R, Gaffney DK. Risk of Cardiac-Specific Mortality in Patients with Lymphoma Treated with Radiotherapy. Int J Radiat Oncol Biol Phys 2023; 117:e489. [PMID: 37785544 DOI: 10.1016/j.ijrobp.2023.06.1717] [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: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) The mainstays of treatment for Non-Hodgkin (NHL) and Hodgkin (HL) lymphoma are chemotherapy, radiotherapy (RT), or a combination of both. Thanks to improvements in treatment options many patients outlive their diagnosis by several decades. As treatments are de-intensified and cardiac sparing techniques have improved, the impact of RT on cardiac mortality should be re-visited. In this study, we sought to investigate the potential association between thoracic irradiation and cardiac-specific mortality (CSM) in patients with lymphoma. We hypothesized that receipt of RT would be associated with higher risk of cardiac death. MATERIALS/METHODS The Surveillance Epidemiology and End Results (SEER) database was queried to identify all patients with HL and NHL with a thoracic primary site from 1975 to 2018. Kaplan Meier estimators were used to analyze cardiac-specific survival. Cohorts were balanced using inverse probability treatment weighing (IPTW). Hazard ratios were calculated using multivariate cox regression analysis. The following treatment eras were defined for analysis: pre-1995, 1995-2003, post-2003, to roughly correspond to the adoption of 3D conformal RT (3DCRT) and intensity-modulated RT (IMRT). RESULTS We identified 10,602 patients, of which 8,088 (76%) had NHL and 2,514 (24%) had HL. Seventy-three percent of patients received chemotherapy and 38% received RT. Median follow up was 11.2 years. Forty-eight percent of patients were alive at last follow up, 6.6% had died from cardiac-specific causes, and 45% had died of other causes. Patients who received RT were had a lower risk of CSM (HR = 0.64, p < 0.01). However, IPTW survival analysis revealed no difference in the risk of cardiac death between the treatment cohorts (HR = 1.00, p = 0.99). Multivariate cox regression analysis identified female sex (HR = 0.73, p <0.01), age younger than 40 (HR = 0.27, p <0.01), and diagnosis after 1995 (HR = 0.31, p <0.01) to be associated with a lower CSM. In patients who received RT, we found that the risk of CSM was a higher (HR = 2.66, p <0.01) in those treated in the pre-1995 era and lower (HR = 0.32, p < 0.01) in the post-2003 era when compared to patients treated between 1995-2003. Additionally, receipt of RT was associated with a lower risk of all-cause mortality (HR 0.82, p<0.01). CONCLUSION Our IPTW analysis shows that patients with thoracic lymphoma treated with RT have a similar risk of cardiac death to patients who did not receive RT, and an improved OS. Known cardiovascular risk factors like male sex and older age were associated with higher risk of cardiac death in patients receiving RT. We also found that patients treated with RT pre-1995 had higher CSM compared to those treated in 1995-2003 and those treated after 2003 had the lowest CSM, possibly in part attributable to the adoption of newer RT techniques. These findings may help clinicians counsel patients with lymphoma on the optimal modality of therapy and the possibility for late treatment effects in the modern era.
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Affiliation(s)
- E Urias
- Department of Radiation Oncology, Huntsman Cancer Institute, University of Utah, Salt Lake City, UT
| | - C R Weil
- Department of Radiation Oncology, Huntsman Cancer Institute, University of Utah, Salt Lake City, UT
| | - A Maity
- Department of Radiation Oncology, Huntsman Cancer Institute, University of Utah, Salt Lake City, UT
| | - R Tao
- Department of Radiation Oncology, Huntsman Cancer Institute, University of Utah, Salt Lake City, UT
| | - D K Gaffney
- Department of Radiation Oncology, Huntsman Cancer Institute, University of Utah, Salt Lake City, UT
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Maxwell R, Wright C, Baron J, Dreyfuss A, LaRiviere M, Chong E, Maity A, Plastaras J, Paydar I. Dose Response of Bulky Tumors in Relapsed/Refractory Diffuse Large B-Cell Lymphoma. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.593] [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: 10/31/2022]
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Kostopoulos N, Bedgi S, Krimitza E, Costabile F, Paydar I, Kim M, LaRiviere M, Maity A, Schuster S, Plastaras J, Facciabene A. Radiation Therapy for Bridging and Improving CAR-T Cell Therapy. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.488] [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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Su W, Maity A, Pryma D, Mankoff D, Cohen R, Lukens J, Lin A. A Phase II Study of Nelfinavir plus Concurrent Chemoradiation for Advanced, HPV-Negative Squamous Cell Carcinoma of the Head and Neck. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.613] [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: 11/24/2022]
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Parmar V, Maity A, Singh P. 133 A Quality Improvement Project to Improve the Appropriateness of Acute Clinic Referrals to a Local ENT Department Using an Electronic Booking System. Br J Surg 2022. [DOI: 10.1093/bjs/znac039.076] [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: 11/14/2022]
Abstract
Abstract
Aim
Assess and improve the proportion of inappropriate acute clinic referrals being made to our local ENT department via a telephone referral system with regards to nature and suitability for a junior grade doctor run clinic with senior supervision. Additionally, to make a more efficient, timely and failproof booking system with an auditable trail by transitioning to an electronic referral system.
Method
A guideline was created using based on common protocols from major Trusts within the UK which was then used to assess 101 acute clinic referrals taken from February 2021 to our local service. An electronic referral system was created, and guidelines disseminated to departments commonly making referrals to the acute clinic in anticipation for re-audit in September 2021 alongside introduction of the guideline to new doctors rotating to the specialty at induction in August.
Results
Initial audit revealed 29% of referrals were inappropriate, 50% of which were too complex, 45% were not acute and 5% were due to accidental double-bookings. Additionally, nasal fracture reviews were seen within 10 days only one third of the time, 37% of patients referred did not have a recorded contact number and 13.8% of all referrals were made with incorrect or unclear clinical information.
Conclusions
The lack of clear clinical guidance on referrals to an acute ENT service at our local centre with an outdated telephone referral system is associated with a large proportion of inappropriate referrals, delays to timely care and transcription errors potentially putting patients at risk of harm.
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Affiliation(s)
- V. Parmar
- Bedfordshire Hospitals NHS Foundation Trust, Luton, United Kingdom
| | - A. Maity
- Bedfordshire Hospitals NHS Foundation Trust, Luton, United Kingdom
| | - P. Singh
- Bedfordshire Hospitals NHS Foundation Trust, Luton, United Kingdom
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Zou W, Kim H, Diffenderfer E, Carlson D, Koch C, Xiao Y, Teo B, Metz J, Maity A, Koumenis C, Cengel K, Dong L. FLASH OXYGEN DEPLETION EFFECTS DEPEND ON TISSUE VASCULATURE STRUCTURE: A SIMULATION STUDY ON SMALL ANIMAL PROTON FLASH EXPERIMENT. Phys Med 2022. [DOI: 10.1016/s1120-1797(22)01600-3] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Busch T, Velalopoulou A, Karagounis I, Cramer G, Skoufos G, Hatzigeorgiou A, Lanza M, Radaelli E, Assenmacher CA, Putt M, Kim M, Diffenderfer E, Dong L, Metz J, Koumenis C, Cengel K, Maity A. FLASH Mechanisms Track MECHANISMS OF FLASH RADIOTHERAPY SPARING OF NORMAL TISSUE AS INFORMED BY RNA-SEQ TRANSCRIPTOME ANALYSES. Phys Med 2022. [DOI: 10.1016/s1120-1797(22)01452-1] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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Velalopoulou A, Karagounis I, Cramer G, Kim M, Skoufos G, Goia D, Hagan S, Verginadis I, Shoniyozov K, Chiango J, Cerullo M, Varner K, Yao L, Qin L, Hatzigeorgiou A, Minn A, Putt M, Lanza M, Assenmacher CA, Radaelli E, Huck J, Diffenderfer E, Dong L, Metz J, Koumenis C, Cengel K, Maity A, Busch T. FLASH Mechanisms Track (Oral Presentations) FLASH PROTON RADIOTHERAPY IS EQUIPOTENT TO STANDARD RADIATION IN TREATMENT OF MURINE SARCOMAS WHILE REDUCING TOXICITIES TO NORMAL SKIN, MUSCLE AND BONE. Phys Med 2022. [DOI: 10.1016/s1120-1797(22)01459-4] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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Tudu R, Banerjee J, Habib M, Bandyopadhyay S, Biswas S, Kesh SS, Maity A, Batabyal S, Polley S. Prevalence and molecular characterization of extended-spectrum β-lactamase (ESBL) producing Escherichia coli isolated from dogs suffering from diarrhea in and around Kolkata. Iran J Vet Res 2022; 23:237-246. [PMID: 36425605 PMCID: PMC9681975 DOI: 10.22099/ijvr.2022.42543.6176] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 04/21/2022] [Accepted: 05/02/2022] [Indexed: 03/17/2023]
Abstract
BACKGROUND Dogs are the favorite companion animals among humans. The close interaction between dogs and people increases the risk of antibiotic resistance spreading. Surveillance for antimicrobial resistance and the identification of ESBL-producing Escherichia coli as an indicator bacterium is an important tool for managing antimicrobial drug therapy. AIMS The present study targeted to identify and characterize ESBL-producing E. coli among dogs suffering from diarrhea in and around Kolkata. METHODS Isolation and identification of E. coli from dogs suffering from diarrhea (n=70) along with screening for the production of both ESBL and AmpC. The isolates were further characterized through antimicrobial resistance profiling, resistance genes (bla CTX-M, bla TEM, and bla SHV) screening, and phylogenetic group study. RESULTS Among the 70 isolates, 21 (30%) were confirmed ESBL producers. An antibiogram typing of ESBL-producing E. coli revealed that the majority of them were resistant to norfloxacin (85.7%) followed by tetracycline (61.90%), doxycycline (57.14%), piperacillin/tazobactam (52.38%), cotrimoxazole (47.62%), gentamicin (42.62%), amikacin (23.81%), and chloramphenicol (19.05%). Major resistance genes included bla CTX-M (100%), bla TEM (28.57%), and bla SHV (9.50%). The predominant phylogenetic groups were phylogroup A (76%) followed by phylogroup D (24%). CONCLUSION The current investigation reported a high prevalence of both ESBL and AmpC β-lactamase (AmpC) producing E. coli, co-resistance to a distinct group of antibiotics, and co-existence of different ESBL genes in dogs. Our findings highlight the importance of diagnostic antimicrobial susceptibility testing for proper antimicrobial therapy and to prevent antimicrobial resistance from spreading to humans from dogs in Kolkata and the surrounding area.
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Affiliation(s)
- R Tudu
- Department of Veterinary Biochemistry, Faculty of Veterinary and Animal Sciences, West Bengal University of Animal and Fishery Sciences, 37, K. B. Sarani, Belgachia, Kolkata-700 037, West Bengal, India
| | - J Banerjee
- Ph.D. Student in Veterinary Biochemistry, Department of Veterinary Biochemistry, Faculty of Veterinary and Animal Sciences, West Bengal University of Animal and Fishery Sciences, 37, K. B. Sarani, Belgachia, Kolkata-700 037, West Bengal, India
| | - Md Habib
- Ph.D. Student in Veterinary Biochemistry, Department of Veterinary Biochemistry, Faculty of Veterinary and Animal Sciences, West Bengal University of Animal and Fishery Sciences, 37, K. B. Sarani, Belgachia, Kolkata-700 037, West Bengal, India
| | - S Bandyopadhyay
- Eastern Regional Station, Indian Veterinary Research Institute, Kolkata-700 037, West Bengal, India
| | - S Biswas
- Department of Veterinary Biochemistry, Faculty of Veterinary and Animal Sciences, West Bengal University of Animal and Fishery Sciences, 37, K. B. Sarani, Belgachia, Kolkata-700 037, West Bengal, India
| | - S S Kesh
- Department of Veterinary Clinical Complex, Faculty of Veterinary and Animal Sciences, West Bengal University of Animal and Fishery Sciences, 37, K. B. Sarani, Belgachia, Kolkata-700 037, West Bengal, India
| | - A Maity
- Department of Veterinary Biochemistry, Faculty of Veterinary and Animal Sciences, West Bengal University of Animal and Fishery Sciences, 37, K. B. Sarani, Belgachia, Kolkata-700 037, West Bengal, India
| | - S Batabyal
- Department of Veterinary Biochemistry, Faculty of Veterinary and Animal Sciences, West Bengal University of Animal and Fishery Sciences, 37, K. B. Sarani, Belgachia, Kolkata-700 037, West Bengal, India
| | - S Polley
- Department of Veterinary Biochemistry, Faculty of Veterinary and Animal Sciences, West Bengal University of Animal and Fishery Sciences, 37, K. B. Sarani, Belgachia, Kolkata-700 037, West Bengal, India
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Lukens J, Mick R, Huang A, Han N, Farwell M, Mitchell T, Amaravadi R, Schuchter L, Berman A, O'Hara M, Maity A, Miller D, Minn A, Vonderheide R, Wherry E, Maity A. Final Results of a Phase I “RadVax” Trial of Hypofractionated Radiation Combined With Pembrolizumab in Patients With Metastatic Solid Tumors. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.168] [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]
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14
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Wright C, Baron J, Lee D, Carpenter M, Anstadt E, Briceño C, Chong E, Maity A, Plastaras J, Paydar I. Disease Outcomes Following Low-Dose Radiotherapy vs. Moderate-Dose Radiotherapy for Orbital Low Grade Non-Hodgkin Lymphoma. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.959] [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: 11/28/2022]
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15
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Campion T, Maity A, Ali S, Richards P, Adams A. Concurrent thyrolipomatosis and thymolipoma in a patient with myasthenia gravis: a case report and review of the literature. Ann R Coll Surg Engl 2021; 103:e212-e215. [PMID: 34192501 PMCID: PMC10752004 DOI: 10.1308/rcsann.2020.7089] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/07/2020] [Indexed: 11/22/2022] Open
Abstract
We present a case of a man with a background of myasthenia gravis who presented with a neck lump, which was diagnosed as thyrolipomatosis in continuity with a very large thymolipoma. Following removal of these lesions, the patient's myaesthenic symptoms improved. While thymolipomas are often seen in the context of myasthenia gravis, thyrolipomatosis is a rare entity and to our knowledge the concurrent finding of both lesions with myasthenia gravis has never been reported. We highlight the important imaging features of both entities and the clinical importance of recognising them.
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Affiliation(s)
| | - A Maity
- Royal London Hospital,
London, UK
| | - S Ali
- Royal London Hospital,
London, UK
| | | | - A Adams
- Royal London Hospital,
London, UK
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Maity A. Meet Our Associate Editorial Board Member. Mini Rev Med Chem 2021. [DOI: 10.2174/138955752110210319142646] [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: 11/22/2022]
Affiliation(s)
- A. Maity
- School of Pharmaceutical Technology, Adamas University Kolkata,India
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Maity A, Panesar H, Kajekar P, Singh P, Panesar J. Safe surgical tracheostomy in patients with COVID-19: key clinical considerations. Ann R Coll Surg Engl 2021; 103:e44-e47. [PMID: 33559561 PMCID: PMC9773852 DOI: 10.1308/rcsann.2020.7024] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Surgical tracheostomy is a high aerosol-generating procedure that is an essential aid to the recovery of patients who are critically ill with COVID-19 pneumonia. We present a single-centre case series of 16 patients with COVID-19 pneumonia who underwent tracheostomy. We recommend that the patient selection criteria for achieving a favourable outcome should be based on fraction of inspired oxygen together with prone-position ventilation. As with any challenging situation, the importance of effective communication is paramount. The critical modifications in the surgical steps are clearly explained. Timely tracheostomy also leads to an earlier freeing up of ventilator space during a period of a rapidly escalating pandemic. The outcomes in terms of swallow and speech function were also assessed. The study has also helped to remove the anxiety around open a tracheostomy in patients who are COVID-19 positive.
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Affiliation(s)
- A Maity
- Department of Otolaryngology, Luton and Dunstable Hospital NHS Foundation Trust, Luton, UK
| | - H Panesar
- Department of Ear, Nose and Throat, Nobles Hospital, Braddan, Isle of Man
| | - P Kajekar
- Department of Anaesthetics, Luton and Dunstable Hospital NHS Foundation Trust, Luton, UK
| | - P Singh
- Department of Otolaryngology, Luton and Dunstable Hospital NHS Foundation Trust, Luton, UK
| | - J Panesar
- Department of Otolaryngology, Luton and Dunstable Hospital NHS Foundation Trust, Luton, UK
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Taylor J, Ruggiero M, Maity A, Ko K, Greenberger B, Donofree D, Sherif K, Lazar M, Jaslow R, Richard S, Mitchell E, Anne P, Trabulsi E, Leader A, Simone N. Sexual Health Toxicity in Cancer Survivors: Is There a Gender Disparity in Physician Evaluation and Intervention? Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.872] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Manjunath S, Cohen A, Arscott W, Maity A, Plastaras J, Paydar I. Is Bridging Radiation (RT) Safe with B Cell Maturation Antigen–targeting Chimeric Antigenic Receptor T Cells (CART-BCMA) Therapy? Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.934] [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: 10/23/2022]
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20
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Das P, Saha I, Chatterjee A, Pramanick K, Chakraborty S, Maity A, Bhowal S, Pradhan D, Mukherjee D, Maiti B. Participation of Phosphatidylinositol-3 Kinase Signalling in Human Chorionic Gonadotropin, Bovine Insulin (B-Insulin) and Human-Insulin-Like Growth Factor-I Induced Oocyte Maturation and Steroidogenesis in the Grey Mullet, Mugil Cephalus. Acta Endocrinol (Buchar) 2020; 16:426-436. [PMID: 34084233 PMCID: PMC8126398 DOI: 10.4183/aeb.2020.426] [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] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
CONTEXT The grey mullet, Mugil cephalus, is an edible fish of high economic importance. Breeding biology with reference to hormonal/growth factor regulation of oocyte maturation needs to be known for its commercial production. OBJECTIVE The present study was conducted to examine the potency of maturation inducing hormones, chorionic gonadotropin (hCG), bovine-insulin, and insulin like growth factor1 (h-IGF-1) I on ovarian steroidogenesis and oocyte maturation. DESIGN The role of hormones and growth factors on steroidogenesis and oocyte maturation was investigated using specific inhibitors, Wortmannin for phosphatidylinositol-3 (PI3) kinase, trilostane for 3β-hydroxysteroid dehydrogenase, 1-octanol and 1-heptanol for gap junctions, actinomycin D for transcription and cycloheximide for translation of signal molecules. METHODS Actions of hormonal and growth factors were examined for steroidogenesis, by radioimmunoassay and oocyte maturation by germinal vesicle breakdown (GVBD). Specific inhibitors were used to determine the cell signaling pathways, PI3 kinase. RESULTS All the inhibitors attenuated the hCG-induced oocyte maturation (GVBD%), steroidogenesis including transcription, translation, gap junctions and PI3 kinase signaling. These inhibitors failed to inhibit h-IGF-I and b-insulin-induced oocyte maturation, steroidogenesis, translation and PI3 kinase signaling. CONCLUSION hCG induces oocyte maturation via steroid dependent pathway involving gap junctions, transcription, translation and PI3 kinase signaling, unlike h-IGF-I and b-insulin in the mullet.
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Affiliation(s)
- P. Das
- University Of Calcutta - Zoology, Kolkata, West Bengal, India
| | - I. Saha
- University Of Calcutta - Zoology, Kolkata, West Bengal, India
| | - A. Chatterjee
- University Of Calcutta - Zoology, Kolkata, West Bengal, India
| | - K. Pramanick
- University Of Calcutta - Zoology, Kolkata, West Bengal, India
| | | | - A. Maity
- University Of Calcutta - Zoology, Kolkata, West Bengal, India
| | - S. Bhowal
- University Of Calcutta - Biochemistry, Kolkata, West Bengal, India
| | - D. Pradhan
- Egra Sarada Shashi Bhusan College - Zoology, Egra, West Bengal, India
| | - D. Mukherjee
- University Of Calcutta - Zoology, Kolkata, West Bengal, India
| | - B.R. Maiti
- University Of Calcutta - Zoology, Kolkata, West Bengal, India
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LaRiviere M, Wright C, Arscott W, Miller D, Weber E, Landsburg D, Svoboda J, Nasta S, Gerson J, Chong E, Schuster S, Maity A, Plastaras J. Induction Radiation Prior to Commercial Chimeric Antigen Receptor T-Cell Therapy for Relapsed/Refractory Non-Hodgkin Lymphoma. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.514] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Moeta PJ, Wesley-Smith J, Maity A, Thwala M. Nano-enabled products in South Africa and the assessment of environmental exposure potential for engineered nanomaterials. SN Appl Sci 2019. [DOI: 10.1007/s42452-019-0584-3] [Citation(s) in RCA: 8] [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: 01/13/2023] Open
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Ngulube T, Gumbo J, Masindi V, Maity A. Preparation and characterisation of high performing magnesite-halloysite nanocomposite and its application in the removal of methylene blue dye. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.02.043] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [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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Thomas C, Karagounis I, Srivastava RK, Kumar S, Karar J, Chao HH, Kazimierczak A, Bado I, Nikolos F, Leli N, Koumenis C, Krishnamurthy S, Ueno NT, Chakrabarti R, Maity A. Abstract P5-05-10: Estrogen receptor β suppresses metastasis of inflammatory breast cancer by regulating cell cytoskeleton and cytokine signaling. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-p5-05-10] [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
Inflammatory breast cancer (IBC) is the most lethal form of breast cancer that accounts for about 10% of breast cancer mortality annually in US. Poor prognosis is largely due to the high propensity of IBC tumors to develop distant metastasis that occurs directly from the gland epithelium and through lymphatic invasion in which dermal lymphatics are filled with tumor emboli. Owing to the complex metastatic process, the molecular basis of IBC aggressiveness is poorly understood, and no specific therapeutic target has been identified. Despite the lack of estrogen receptor α (ERα) in the majority of IBC tumors, estrogen may still play a role in these cancers through pathways that involve ERβ. Our tissue staining reveals expression of ERβ in more than 50% of IBCs that is reproduced in IBC cell lines. Furthermore, analysis of IBC datasets indicates correlation of receptor expression with good prognosis. We studied this association in preclinical models of IBC by knocking out ERβ in IBC cells. This promotes migration and invasion through cytoskeleton remodeling whereas re-expression of the receptor in knockout cells restores the cytoskeletal structure and migration to the levels of control cells. Consistent with increased migration, deletion of ERβ activates large gene networks of cell de-differentiation and cytokine synthesis that trigger tumor microenvironment responses to promote the motile phenotype of IBC cells. In contrast, ligands that activate the receptor inhibit signaling that contributes to metastasis in IBC. Analysis of an orthotopic xenograft model shows that IBC tumors lacking ERβ have higher propensity for metastasis compared with the ERβ-proficient tumors supporting the anti-metastatic activity of the receptor. Our findings point towards a role of ERβ in preventing distant metastases by inhibiting dissemination of IBC cells and maintaining the integrity of emboli. This function combined with distinct expression indicates the potential of ERβ to represent a unique prognostic marker and therapeutic target that can be utilized to repress IBC metastasis and eliminate its associated mortality.
Citation Format: Thomas C, Karagounis I, Srivastava RK, Kumar S, Karar J, Chao H-H, Kazimierczak A, Bado I, Nikolos F, Leli N, Koumenis C, Krishnamurthy S, Ueno NT, Chakrabarti R, Maity A. Estrogen receptor β suppresses metastasis of inflammatory breast cancer by regulating cell cytoskeleton and cytokine signaling [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P5-05-10.
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Affiliation(s)
- C Thomas
- University of Pennsylvania, Philadelphia; The University of Texas MD Anderson Cancer Center, Houston; Baylor College of Medicine, Houston
| | - I Karagounis
- University of Pennsylvania, Philadelphia; The University of Texas MD Anderson Cancer Center, Houston; Baylor College of Medicine, Houston
| | - RK Srivastava
- University of Pennsylvania, Philadelphia; The University of Texas MD Anderson Cancer Center, Houston; Baylor College of Medicine, Houston
| | - S Kumar
- University of Pennsylvania, Philadelphia; The University of Texas MD Anderson Cancer Center, Houston; Baylor College of Medicine, Houston
| | - J Karar
- University of Pennsylvania, Philadelphia; The University of Texas MD Anderson Cancer Center, Houston; Baylor College of Medicine, Houston
| | - H-H Chao
- University of Pennsylvania, Philadelphia; The University of Texas MD Anderson Cancer Center, Houston; Baylor College of Medicine, Houston
| | - A Kazimierczak
- University of Pennsylvania, Philadelphia; The University of Texas MD Anderson Cancer Center, Houston; Baylor College of Medicine, Houston
| | - I Bado
- University of Pennsylvania, Philadelphia; The University of Texas MD Anderson Cancer Center, Houston; Baylor College of Medicine, Houston
| | - F Nikolos
- University of Pennsylvania, Philadelphia; The University of Texas MD Anderson Cancer Center, Houston; Baylor College of Medicine, Houston
| | - N Leli
- University of Pennsylvania, Philadelphia; The University of Texas MD Anderson Cancer Center, Houston; Baylor College of Medicine, Houston
| | - C Koumenis
- University of Pennsylvania, Philadelphia; The University of Texas MD Anderson Cancer Center, Houston; Baylor College of Medicine, Houston
| | - S Krishnamurthy
- University of Pennsylvania, Philadelphia; The University of Texas MD Anderson Cancer Center, Houston; Baylor College of Medicine, Houston
| | - NT Ueno
- University of Pennsylvania, Philadelphia; The University of Texas MD Anderson Cancer Center, Houston; Baylor College of Medicine, Houston
| | - R Chakrabarti
- University of Pennsylvania, Philadelphia; The University of Texas MD Anderson Cancer Center, Houston; Baylor College of Medicine, Houston
| | - A Maity
- University of Pennsylvania, Philadelphia; The University of Texas MD Anderson Cancer Center, Houston; Baylor College of Medicine, Houston
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Maity A, Mick R, Huang A, George S, Farwell M, Lukens J, Berman A, Mitchell T, Bauml J, Schuchter L, O'Hara M, Lin L, DeMichele A, Christodouleas J, Haas N, Patsch D, Hahn S, Minn A, Wherry E, Vonderheide R. A Phase I Trial of Pembrolizumab with Hypofractionated Radiation Therapy (HFRT) in Patients with Metastatic Cancers. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.06.147] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Rengan R, Mick R, Pryma D, Lin L, Plastaras J, Simone C, Gupta A, Evans T, Stevenson J, Langer C, Kucharczuk J, Friedberg J, Lam S, Patsch D, Hahn S, Maity A. Long-term Results of a Phase I/II Trial of Nelfinavir with Concurrent Chemoradiotherapy for Locally Advanced Non-Small Cell Lung Cancer. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.06.135] [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: 10/28/2022]
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27
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Sharma S, Guttmann D, Small D, Rareshide C, Kurtzman G, Jones J, Shabason J, Alonso-Basanta M, Lustig R, Maity A, Metz J, Lowitz S, Cohen M, Anderson N, Finlay J, Gabriel P, Patel M, Bekelman J. Effect of Introducing a Default Order Option on Unnecessary Daily Image Guidance During Palliative Radiation Therapy: A Cluster Randomized Stepped-Wedge Clinical Trial. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.06.382] [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: 11/16/2022]
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28
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Hoppe BS, Hill-Kayser CE, Tseng YD, Flampouri S, Elmongy HM, Cahlon O, Mendenhall NP, Maity A, McGee LA, Plastaras JP. Consolidative proton therapy after chemotherapy for patients with Hodgkin lymphoma. Ann Oncol 2018; 28:2179-2184. [PMID: 28911093 PMCID: PMC5834068 DOI: 10.1093/annonc/mdx287] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [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] [Indexed: 11/16/2022] Open
Abstract
Background We investigated early outcomes for patients receiving chemotherapy followed by consolidative proton therapy (PT) for the treatment of Hodgkin lymphoma (HL). Patients and methods From June 2008 through August 2015, 138 patients with HL enrolled on either IRB-approved outcomes tracking protocols or registry studies received consolidative PT. Patients were excluded due to relapsed or refractory disease. Involved-site radiotherapy field designs were used for all patients. Pediatric patients received a median dose of 21 Gy(RBE) [range 15–36 Gy(RBE)]; adult patients received a median dose of 30.6 Gy(RBE) [range, 20–45 Gy(RBE)]. Patients receiving PT were young (median age, 20 years; range 6–57). Overall, 42% were pediatric (≤18 years) and 93% were under the age of 40 years. Thirty-eight percent of patients were male and 62% female. Stage distribution included 73% with I/II and 27% with III/IV disease. Patients predominantly had mediastinal involvement (96%) and bulky disease (57%), whereas 37% had B symptoms. The median follow-up was 32 months (range, 5–92 months). Results The 3-year relapse-free survival rate was 92% for all patients; it was 96% for adults and 87% for pediatric patients (P = 0.18). When evaluated by positron emission tomography/computed tomography scan response at the end of chemotherapy, patients with a partial response had worse 3-year progression-free survival compared with other patients (78% versus 94%; P = 0.0034). No grade 3 radiation-related toxicities have occurred to date. Conclusion Consolidative PT following standard chemotherapy in HL is primarily used in young patients with mediastinal and bulky disease. Early relapse-free survival rates are similar to those reported with photon radiation treatment, and no early grade 3 toxicities have been observed. Continued follow-up to assess late effects is critical.
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Affiliation(s)
- B S Hoppe
- Department of Radiation Oncology, University of Florida College of Medicine, Gainesville.,University of Florida Health Proton Therapy Institute, Jacksonville
| | - C E Hill-Kayser
- Department of Radiation Oncology, University of Pennsylvania, Philadelphia
| | - Y D Tseng
- Department of Radiation Oncology, University of Washington, Seattle.,Proton Collaborative Group Registry Membership Site, Warrenville.,Seattle Cancer Care Alliance Proton Therapy Center, Seattle
| | - S Flampouri
- Department of Radiation Oncology, University of Florida College of Medicine, Gainesville
| | - H M Elmongy
- Department of Radiation Oncology, University of Pennsylvania, Philadelphia
| | - O Cahlon
- Proton Collaborative Group Registry Membership Site, Warrenville.,Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York.,Procure Proton Therapy Center, Somerset
| | - N P Mendenhall
- Department of Radiation Oncology, University of Florida College of Medicine, Gainesville.,University of Florida Health Proton Therapy Institute, Jacksonville
| | - A Maity
- Department of Radiation Oncology, University of Pennsylvania, Philadelphia
| | - L A McGee
- Proton Collaborative Group Registry Membership Site, Warrenville.,Mayo Clinic, Scottsdale, USA
| | - J P Plastaras
- Department of Radiation Oncology, University of Pennsylvania, Philadelphia
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Aigbe UO, Ho WH, Maity A, Khenfouch M, Srinivasu V. Removal of hexavalent chromium from wastewater using PPy/Fe3O4 magnetic nanocomposite influenced by rotating magnetic field from two pole three-phase induction motor. ACTA ACUST UNITED AC 2018. [DOI: 10.1088/1742-6596/984/1/012008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Abstract
Distant metastasis in advanced breast cancer is not uncommon; however, spread to the paranasal sinuses is extremely rare. We present a case of a woman who presented to our ophthalmology colleagues with worsening unilateral proptosis secondary to a tumour mass within her ethmoid sinuses. Biopsy of the ethmoid tumour showed adenocarcinoma of unknown origin. Whole-body positron emission computed tomography demonstrated a breast primary lesion. The patient was treated with palliative chemotherapy, and the patient remains well at this point. The importance of specialist head and neck radiological interpretation of imaging cannot be underestimated. Early tissue diagnosis is essential before ascribing patients with orbital symptoms to non-malignant process.
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Affiliation(s)
- A Maity
- Royal London Hospital , London , UK
| | | | - S Vasani
- Royal London Hospital , London , UK
| | - G Alusi
- Royal London Hospital , London , UK
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Dasgupta R, Ray PP, Maity A, Pradhan D, Sarkar S, Maiti BR. DUAL ACTION OF ARECOLINE ON ADRENAL FUNCTION AND GLUCOSE-GLYCOGEN HOMEOSTASIS IN METABOLIC STRESS IN MICE. Acta Endocrinol (Buchar) 2017; 13:400-409. [PMID: 31149208 DOI: 10.4183/aeb.2017.400] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Background People chew betel nut (Areca catechu) for physical work and stress reduction, but it contains arecoline, which has both therapeutic value and untoward effects on endocrine and gonadal functions. Objective Aim of the present study is to investigate its role on adrenal with its target in metabolic stress in mice. Materials and methods Mice were deprived of water / food, each for 5 days / treated with arecoline (10 mg / kg body wt daily for 5 days) / arecoline after water or food deprivation, for 5 days each. Results Water or food-deprivation caused adrenocortical hyperactivity, evident from abundance of enlarged mitochondria and smooth endoplasmic reticulum (SER) with elevation of corticosterone level (C: 68.31 ± 2.30, WD: 159.31 ± 4.10 / FD: 194.12 ± 3.40 μg/ mL). Arecoline treatment alone or in water deprivation (C: 68.31 ± 2.30, AR: 144.50 ± 4.33, AR+WD: 194.42 ± 3.35 μg/ mL) / food deprivation (AR + FD: 180.89 ± 4.51 μg/ mL) stress also stimulated adrenocortical activity as recorded in metabolic stress. In contrast, adrenomedullary activity was not altered following water/ food deprivation. Arecoline treatment alone or in metabolic stress suppressed adrenomedullary activity by showing depletion of chromaffin granules (E/NE?), epinephrine (E) and norepinephrine (NE) concentrations. Both the stress decreased blood glucose and liver glycogen levels. Arecoline treatment decreased blood glucose level, with a rise in liver glycogen level, but elevated blood glucose level in water deprivation unlike in starvation. Conclusion Arecoline alone or in metabolic stress involves adrenal and probably other endocrine glands (pancreas, posterior pituitary and rennin-angiotensin system) to maintain homeostasis in metabolic stress in mice.
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Affiliation(s)
- R Dasgupta
- University of Calcutta, Department of Zoology, Calcutta, India
| | - P Paramita Ray
- Bangabasi College, Department of Zoology, Calcutta, India
| | - A Maity
- University of Calcutta, Department of Zoology, Calcutta, India
| | - D Pradhan
- University of Calcutta, Department of Zoology, Calcutta, India
| | - S Sarkar
- City College, Department of Zoology, Calcutta, India
| | - B R Maiti
- University of Calcutta, Department of Zoology, Calcutta, India
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Tseng Y, Hoppe B, Miller D, Maity A, Nanda R, Mendenhall N, Flampouri S, Mohindra P, Hartsell W, Vargas C, Plastaras J. Rates of Toxicity and Outcomes After Mediastinal Proton Therapy For Relapsed/Refractory Lymphoma. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.155] [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: 10/18/2022]
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Rath S, Halder O, Pradhani A, Satpati B, Maity A, Chini TK, Gogurla N, Ray SK. White-light emission by phonon assisted coherent mixing of excitons in Au8-CdS hybrid nanorods. Nanotechnology 2016; 27:495706. [PMID: 27831935 DOI: 10.1088/0957-4484/27/49/495706] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Gold cluster (Au8) coated CdS hybrid nanorods (HNRs), synthesized using a sonication assisted assembly route, exhibit phonon assisted coherent mixing of excitons. As observed from optical absorption, Raman scattering, x-ray diffraction and transmission electron microscopic studies, the Au8 modulates the crystal-and electronic-structure of the CdS nanorods, effecting enhancement of exciton-phonon (e-p) interactions. The e-p interaction and entropy effect mediated phase matching of the excitonic transitions, leading-via cooperative and coherent mixing of the excitons' color-to the emission of white light, has been confirmed from room temperature and time resolved photoluminescence measurements.
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Affiliation(s)
- S Rath
- School of Basic Sciences, Indian Institute of Technology Bhubaneswar, Toshali Bhawan, Satyanagar, Bhubaneswar-751 007, India
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Xu M, Maity A, Kirk M, Zhai H, Both S, Lin L. Proton Therapy Reduces Normal Tissue Dose Compared to Intensity Modulated Radiation Therapy in Extended Field Pelvic Radiation Therapy for Gynecologic Malignancies. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.2216] [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: 12/01/2022]
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Hoppe B, Hill-Kayser C, Tseng Y, Flampouri S, Elmongy H, Cahlon O, Mendenhall N, Maity A, McGee L, Plastaras J. The Use of Consolidative Proton Therapy After First-Line Therapy Among Patients With Hodgkin Lymphoma at Academic and Community Proton Centers. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.107] [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: 11/28/2022]
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Milgrom S, Jauhari S, Plastaras J, Lukens J, Nieto Y, Dabaja B, Smith G, Pinnix C, Maity A, Nasta S. A Multi-institutional Analysis of Consolidative Radiation Therapy Following Autologous Transplantation for Relapsed/Refractory Hodgkin Lymphoma. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.1872] [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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Plastaras J, Vogel J, Elmongy H, Zeng C, Svoboda J, Both S, Maity A. First Clinical Report of Pencil Beam Scanned Proton Therapy for Mediastinal Lymphoma. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.1876] [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: 11/26/2022]
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Gupta SK, Nayunigari MK, Misra R, Ansari FA, Dionysiou DD, Maity A, Bux F. Synthesis and Performance Evaluation of a New Polymeric Composite for the Treatment of Textile Wastewater. Ind Eng Chem Res 2015. [DOI: 10.1021/acs.iecr.5b03714] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- S. K. Gupta
- Institute
for Water and Wastewater Technology, Durban University of Technology, Durban 4001, South Africa
- Environmental
Engineering, Department of Civil Engineering, Indian Institute of Technology Delhi, New Delhi 110016, India
| | - M. K. Nayunigari
- Department
of Civil and Chemical Engineering, University of South Africa (UNISA), Pretoria 0002, South Africa
| | - R. Misra
- Institute
for Water and Wastewater Technology, Durban University of Technology, Durban 4001, South Africa
| | - F. A. Ansari
- Institute
for Water and Wastewater Technology, Durban University of Technology, Durban 4001, South Africa
| | - D. D. Dionysiou
- Environmental
Engineering and Science Program, Department of Biomedical, Chemical
and Environmental Engineering, University of Cincinnati, Cincinnati, Ohio 45220, United States
| | - A. Maity
- Department
of Civil and Chemical Engineering, University of South Africa (UNISA), Pretoria 0002, South Africa
- DST/CSIR
National
Centre for Nanostructured Materials, Council for Scientific and Industrial
Research, Pretoria 0001, South Africa
| | - F. Bux
- Institute
for Water and Wastewater Technology, Durban University of Technology, Durban 4001, South Africa
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DeCesaris C, Woodhouse K, Volz E, Gabriel P, Suneja G, Maity A, Hahn S. Examining Patient Perceptions of Quality and Safety in a Large Radiation Oncology Department. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.1813] [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: 12/01/2022]
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Woodhouse K, Volz E, Bellerive M, Gabriel P, Maity A, Hahn S, Vapiwala N. The Implementation and Assessment of a Quality and Safety Culture Education Program in a Large Radiation Oncology Department. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.1814] [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: 10/22/2022]
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41
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Ballav N, Choi H, Mishra S, Maity A. Synthesis, characterization of Fe3O4@glycine doped polypyrrole magnetic nanocomposites and their potential performance to remove toxic Cr(VI). J IND ENG CHEM 2014. [DOI: 10.1016/j.jiec.2014.01.007] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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42
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Maity A, Cerniglia G, Tuttle S, Lin A, Koumenis C. PI3K/Akt Inhibition Decreases Oxygen Consumption in Tumor Cells by Phosphorylating and Inactivating Pyruvate Dehydrogenase (PDH) E1a Subunit. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.2240] [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: 11/30/2022]
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43
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Pati S, Maity A, Banerji P, Majumder SB. Qualitative and quantitative differentiation of gases using ZnO thin film gas sensors and pattern recognition analysis. Analyst 2014; 139:1796-800. [DOI: 10.1039/c3an02021e] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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44
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Fang P, Alonso-Basanta M, Maity A, Hahn S, Lustig R, Dorsey J. Phase 1 Study of Nelfinavir Concurrent With Temozolomide and Radiation Therapy in Patients With Glioblastoma Multiforme. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.051] [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: 10/26/2022]
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45
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Das P, Pramanick K, Maity A, Maiti B. The role of some extra-gonadal hormones on the circannual ovarian cycle of the flat head grey mullet,Mugil cephalusL. BIOL RHYTHM RES 2013. [DOI: 10.1080/09291016.2013.770291] [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: 10/27/2022]
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Abstract
Modern research data, where a large number of functional predictors is collected on few subjects are becoming increasingly common. In this paper we propose a variable selection technique, when the predictors are functional and the response is scalar. Our approach is based on adopting a generalized functional linear model framework and using a penalized likelihood method that simultaneously controls the sparsity of the model and the smoothness of the corresponding coefficient functions by adequate penalization. The methodology is characterized by high predictive accuracy, and yields interpretable models, while retaining computational efficiency. The proposed method is investigated numerically in finite samples, and applied to a diffusion tensor imaging tractography data set and a chemometric data set.
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Affiliation(s)
- J. Gertheiss
- Department of Animal Sciences, Georg-August-Universität Göttingen, Germany
| | - A. Maity
- Department of Statistics, North Carolina State University, USA
| | - A.-M. Staicu
- Department of Statistics, North Carolina State University, USA
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47
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Maity A, Cerniglia G, Karar J, Koumenis C. Inhibition of Autophagy as a Strategy to Augment Radiosensitization by the Dual PI3K/mTOR Inhibitor NVP-BEZ235. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.130] [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: 10/27/2022]
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48
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Volz E, Gabriel P, Bergendahl H, Maity A, Hahn S. Improving Safety Culture Through Incident Reporting. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.263] [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: 10/27/2022]
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49
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Gupta K, Bhattacharya S, Nandi D, Dhar A, Maity A, Mukhopadhyay A, Chattopadhyay DJ, Ray NR, Sen P, Ghosh UC. Arsenic(III) sorption on nanostructured cerium incorporated manganese oxide (NCMO): a physical insight into the mechanistic pathway. J Colloid Interface Sci 2012; 377:269-76. [PMID: 22515993 DOI: 10.1016/j.jcis.2012.01.066] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2011] [Revised: 12/24/2011] [Accepted: 01/09/2012] [Indexed: 11/18/2022]
Abstract
Arsenic(III) sorption was investigated with nanostructured cerium incorporated manganese oxide (NCMO). The pH between 6.0 and 8.0 was optimized for the arsenic(III) sorption. Kinetics and equilibrium data (pH=7.0±0.2, T=303±1.6 K, and I=0.01 M) of arsenic(III) sorption by NCMO described, respectively, the pseudo-second order and the Freundlich isotherm equations well. The sorption process was somewhat complicated in nature and divided into two different segments, initially very fast sorption followed by slow intraparticle diffusion process. Sorption reaction of arsenic(III) on NCMO was endothermic (ΔH°=+13.46 kJ mol(-1)) and spontaneous (ΔG°=-24.75 to -30.15 kJ mol(-1) at T=283-323 K), which took place with increasing entropy (ΔS°=+0.14 kJ mol(-1)K(-1)) at solid-liquid interface. Energy of arsenic(III) sorption estimated by analyzing the equilibrium data using the D-R isotherm model was 15.4 kJ mol(-1), indicating the ion-exchange type mechanism. Raman, FT-IR, pH effect, desorption, etc. studies indicated that arsenic(III) was oxidized to arsenic(V) during the sorption process.
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Affiliation(s)
- K Gupta
- Department of Chemistry, Presidency University, 86/1 College Street, Kolkata 700 073, India
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Maity A, Mukherjee K, Majumder SB. Addressing the Cross-Sensitivity of Magnesium Zinc Ferrite Towards Reducing Gas Sensing Using Pattern Recognition Techniques. ACTA ACUST UNITED AC 2012. [DOI: 10.1166/sl.2012.2329] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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