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Bhaumik M, Raju K, Arunachellan I, Ludwig T, Mathe MK, Maity A, Mathur S. High-performance supercapacitors based on S-doped polyaniline nanotubes decorated with Ni(OH)2 nanosponge and onion-like carbons derived from used car tyres. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.136111] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Maponya TC, Ramohlola KE, Kera NH, Modibane KD, Maity A, Katata-Seru LM, Hato MJ. Influence of Magnetic Nanoparticles on Modified Polypyrrole/ m-Phenylediamine for Adsorption of Cr(VI) from Aqueous Solution. Polymers (Basel) 2020; 12:E679. [PMID: 32204322 PMCID: PMC7182836 DOI: 10.3390/polym12030679] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 02/17/2020] [Accepted: 02/20/2020] [Indexed: 01/12/2023] Open
Abstract
A novel, modified polypyrrole/m-phenylediamine (PPy-mPD) composite, decorated with magnetite (Fe3O4) nanoparticles, and prepared via an in-situ oxidative polymerisation, was investigated. The PPy-mPD/Fe3O4 nanocomposite was employed for the removal of highly toxic oxyanion hexavalent chromium Cr(VI) from an aqueous solution. The structure and successful formation of the PPy-mPD/Fe3O4 nanocomposite was confirmed and investigated using various techniques. The presence of Fe3O4 was confirmed by high resolution transmission electron microscopy, with an appearance of Fe lattice fringes. The estimation of the saturation magnetisation of the nanocomposite, using a vibrating sample magnetometer, was observed to be 6.6 emu/g. In batch adsorption experiments, PPy-mPD/Fe3O4 nanocomposite (25 mg) was able to remove 99.6% of 100 mg/L of Cr(VI) at pH 2 and 25 °C. Adsorption isotherms were investigated at different Cr(VI) concentration (100-600 mg/L) and temperature (15-45 °C). It was deduced that adsorption follows the Langmuir model, with a maximum adsorption capacity of 555.6 mg/g for Cr(VI) removal. Furthermore, isotherm data were used to calculate thermodynamic values for Gibbs free energy, enthalpy change and entropy change, which indicated that Cr(VI) adsorption was spontaneous and endothermic in nature. Adsorption-desorption experiments revealed that the nanocomposite was usable for two consecutive cycles with no significant loss of adsorption capacity. This research demonstrates the application potential for the fascinating properties of PPy-mPD/Fe3O4 nanocomposite as a highly efficient adsorbent for the removal of heavy metal ions from industrial wastewater.
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Goddeti SMR, Bhaumik M, Maity A, Ray SS. Removal of Congo red from aqueous solution by adsorption using gum ghatti and acrylamide graft copolymer coated with zero valent iron. Int J Biol Macromol 2020; 149:21-30. [PMID: 31981661 DOI: 10.1016/j.ijbiomac.2020.01.099] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 01/03/2020] [Accepted: 01/09/2020] [Indexed: 11/19/2022]
Abstract
Gum ghatti (Gg) and acrylamide (AAm) grafted copolymer [poly (Gg-AAm)] coated by zero valent iron (ZVI) was developed to remove toxic Congo red (CR) from waste water. Prepared composite, [poly (Gg-AAm)/ZVI] was characterized by FESEM, TEM, BET, FTIR and XRD. CR adsorption from water using [poly (Gg-AAm)/ZVI] was investigated and several parameters discussed, such as solution pH, contact time, dosage and temperature to find out removal efficiency of polymer composite. The kinetic data for the adsorption of CR followed the pseudo-second-order model and the Langmuir maximum adsorption capacity for CR at pH 7.0 were found to be 153.8, 200 and 250 mg/g at 25, 35 and 45 °C correspondingly. Desorption studies revealed that prepared composite can be used up to three cycles efficiently and thermodynamic parameters such as Gibbs free energy (ΔG0), enthalpy (ΔH0) and entropy (ΔS0) changes showed the adsorption of CR onto [poly (Gg-AAm)/ZVI] was feasible, spontaneous and endothermic.
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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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Shyamal S, Maity A, Satpati AK, Bhattacharya C. Development of Cu2O thin films under the influence of electrochemical impedance: Applications in improved photoelectrochemical water reduction. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.03.231] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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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 APPLIED SCIENCES 2019. [DOI: 10.1007/s42452-019-0584-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Midya L, Das R, Bhaumik M, Sarkar T, Maity A, Pal S. Removal of toxic pollutants from aqueous media using poly (vinyl imidazole) crosslinked chitosan synthesised through microwave assisted technique. J Colloid Interface Sci 2019; 542:187-197. [DOI: 10.1016/j.jcis.2019.01.121] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 01/20/2019] [Accepted: 01/28/2019] [Indexed: 10/27/2022]
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Hajra P, Shyamal S, Mandal H, Sariket D, Maity A, Kundu S, Bhattacharya C. Synthesis of oxygen deficient bismuth oxide photocatalyst for improved photoelectrochemical applications. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.01.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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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] [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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Parashar K, Pillay K, Das R, Maity A. Fluoride Toxicity and Recent Advances in Water Defluoridation with Specific Emphasis on Nanotechnology. ACTA ACUST UNITED AC 2019. [DOI: 10.1007/978-3-030-04474-9_9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
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Hato MJ, Maponya TC, Ramohlola KE, Modibane KD, Maity A, Monama GR, Makgopa K, Bello A. Polymer-Based Magnetic Nanocomposites for the Removal of Highly Toxic Hexavalent Chromium from Aqueous Solutions. ENVIRONMENTAL CHEMISTRY FOR A SUSTAINABLE WORLD 2019. [DOI: 10.1007/978-3-030-04477-0_8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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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] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Chigondo M, Paumo HK, Bhaumik M, Pillay K, Maity A. Rapid high adsorption performance of hydrous cerium-magnesium oxides for removal of fluoride from water. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.06.015] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Muliwa AM, Leswifi TY, Maity A, Ochieng A, Onyango MS. Fixed-bed operation for manganese removal from water using chitosan/bentonite/MnO composite beads. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:18081-18095. [PMID: 29691746 DOI: 10.1007/s11356-018-1993-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Accepted: 04/09/2018] [Indexed: 06/08/2023]
Abstract
In the present study, a new composite adsorbent, chitosan/bentonite/manganese oxide (CBMnO) beads, cross-linked with tetraethyl-ortho-silicate (TEOS) was applied in a fixed-bed column for the removal of Mn (II) from water. The adsorbent was characterised by scanning electron microscopy (SEM), Fourier transform infra-red (FT-IR), N2 adsorption-desorption and X-ray photoelectron spectroscopy (XPS) techniques, and moreover the point of zero charge (pHpzc) was determined. The extend of Mn (II) breakthrough behaviour was investigated by varying bed mass, flow rate and influent concentration, and by using real environmental water samples. The dynamics of the column showed great dependency of breakthrough curves on the process conditions. The breakthrough time (tb), bed exhaustion time (ts), bed capacity (qe) and the overall bed efficiency (R%) increased with an increase in bed mass, but decreased with the increase in both influent flow rate and concentration. Non-linear regression suggested that the Thomas model effectively described the breakthrough curves while large-scale column performance could be estimated by the bed depth service time (BDST) model. Experiments with environmental water revealed that coexisting ions had little impact on Mn (II) removal, and it was possible to achieve 6.0 mg/g breakthrough capacity (qb), 4.0 L total treated water and 651 bed volumes processed with an initial concentration of 38.5 mg/L and 5.0 g bed mass. The exhausted bed could be regenerated with 0.001 M nitric acid solution within 1 h, and the sorbent could be reused twice without any significant loss of capacity. The findings advocate that CBMnO composite beads can provide an efficient scavenging pathway for Mn (II) in polluted water.
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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] [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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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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Maity A, Maughan E, Vasani S, Alusi G. Ethmoidal metastasis as a first presentation of breast cancer: a case report. Ann R Coll Surg Engl 2018; 100:e139-e141. [PMID: 29607722 DOI: 10.1308/rcsann.2018.0065] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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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Mahato SK, Bhaumik M, Maji A, Dutta A, Maiti D, Maity A. Fe-polyaniline composite nanofiber catalyst for chemoselective hydrolysis of oxime. J Colloid Interface Sci 2018; 513:592-601. [PMID: 29195179 DOI: 10.1016/j.jcis.2017.11.059] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2017] [Revised: 11/16/2017] [Accepted: 11/17/2017] [Indexed: 11/17/2022]
Abstract
A facile chemoselective one-pot strategy for the deprotection of oxime has been developed using Fe0-polyaniline composite nanofiber (Fe0-PANI), as a catalyst. Nano material based Fe0-PANI catalyst has been synthesized via in-situ polymerization of ANI monomer and followed by reductive deposition of Fe0 onto PANI matrix. The catalyst was characterized by FE-SEM, HR-TEM, BET, XRD, ATR-FTIR, XPS and VSM techniques. The scope of the transformation was studied for aryl, alkyl and heteroarylketoxime with excellent chemoselectivity (>99%). Mechanistic investigations suggested the involvement of a cationic intermediate with Fe3+ active catalytic species. Substituent effect showed a linear free energy relationship. The activation energy (Ea) was calculated to be 17.46 kJ mol-1 for acetophenone oxime to acetophenone conversion. The recyclability of the catalyst demonstrated up to 10 cycles without any significant loss of efficiency. Based on the preliminary experiments a plausible mechanism has been proposed involving a carbocationic intermediate.
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Sariket D, Shyamal S, Hajra P, Mandal H, Bera A, Maity A, Bhattacharya C. Improvement of photocatalytic activity of surfactant modified In2O3 towards environmental remediation. NEW J CHEM 2018. [DOI: 10.1039/c7nj04645f] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
TX-100 surfactant modification of In2O3 semiconductor thin films with better surface coverage and crystallinity for photoelectrochemical applications with improved catalytic properties.
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Motshekga SC, Sinha Ray S, Maity A. Synthesis and characterization of alginate beads encapsulated zinc oxide nanoparticles for bacteria disinfection in water. J Colloid Interface Sci 2017; 512:686-692. [PMID: 29107919 DOI: 10.1016/j.jcis.2017.10.098] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Revised: 10/23/2017] [Accepted: 10/23/2017] [Indexed: 12/19/2022]
Abstract
The use of polymer nanocomposites as novel materials for water remediation has emerged as a promising alternative for disinfection of bacteria contaminated water. Sodium alginate, a natural biopolymer has been investigated in this study by encapsulating antimicrobial zinc oxide nanoparticles supported bentonite. The confirmation of the alginate nanocomposites was done by use of TEM, SEM-EDS and XRD. The antimicrobial activity of the alginate nanocomposites was investigated by batch studies using surface water and synthetic bacteria contaminated water containing Staphylococcus aureus. The effect of nanocomposite amount and initial bacteria concentration has been studied. The inactivation results indicated that the nanocomposite effectively inactivated bacteria in both the synthetic and surface water. With an amount of 0.5 g of the nanocomposites, no bacteria was observed in the water after 70 min of contact time with initial bacteria concentration of 200 cfu/ml for synthetic water and within a min, no bacteria was observed in the water for surface water. It is worth noting that 200 cfu/ml is the bacteria concentration range in which environmental water is likely to contain. Therefore, the results of this study have indicated that the alginate nanocomposites can be deemed as a potential antimicrobial agent for water disinfection.
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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 ENDOCRINOLOGICA-BUCHAREST 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] [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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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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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