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Samanta S, Kumar V, Nag SK, Raman RK, Saha K, Bandyopadhyay S, Mohanty BP, Das BK. Metal contaminations in sediment and associated ecological risk assessment of river Mahanadi, India. ENVIRONMENTAL MONITORING AND ASSESSMENT 2021; 192:810. [PMID: 33443675 DOI: 10.1007/s10661-020-08708-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Accepted: 10/25/2020] [Indexed: 06/12/2023]
Abstract
Mahanadi is one of the major rivers of peninsular India. Like other Indian rivers, it is contaminated with sewages, industrial discharges, and agricultural runoff. Thus, necessity was felt to monitor its pollution status. Present work was part of that program and aimed to assess the sediment contamination due to the trace metals Cd, Cr, Cu, Mn, Pb, and Zn during 2012-2015. Sediment pollution status and ecological risks were evaluated calculating contamination factor (CF), geo-accumulation (Igeo), pollution load index (PLI), potential ecological risk (EiR), etc. The recorded metal concentrations were Cd BDL of flame mode of AAS; Cr BDL - 73.9; Cu BDL - 44.4; Mn 37.2 - 1887.0; Pb BDL - 29.5; and Zn BDL - 92.5 mg kg-1. As per US EPA guidelines, Cr concentrations at many locations were in the moderately polluted range. Igeo, CF, mCd, PLI, and EiR indicated low pollution levels and low ecological risks due to the trace metals assessed. The sediment quality guidelines (SQGs) indicated that Cr and Cu concentrations exceeded (16% sample) the threshold effect concentrations and may occasionally exhibit adverse biological effects. The association of sediment organic matter, conductivity and content of Cu, and their grouping in component 1 of PCA revealed that the anthropogenic input was dominant and so also the component 2 where Cr exhibited moderately good correlation with organic matter. Cluster analysis of the sampling sites based on pollution status yielded 3 groups: relatively uncontaminated (S3, S4), low to moderately contaminated (S2), and moderately contaminated (S1, S5, S6) stretches.
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Duberstein ZT, Brunner J, Panisch LS, Bandyopadhyay S, Irvine C, Macri JA, Pressman E, Thornburg LL, Poleshuck E, Bell K, Best M, Barrett E, Miller RK, O'Connor TG. The Biopsychosocial Model and Perinatal Health Care: Determinants of Perinatal Care in a Community Sample. Front Psychiatry 2021; 12:746803. [PMID: 34867537 PMCID: PMC8635705 DOI: 10.3389/fpsyt.2021.746803] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Accepted: 10/18/2021] [Indexed: 11/13/2022] Open
Abstract
Insufficient care in the perinatal period is associated with poorer maternal health, poorer perinatal outcomes, infant mortality, and health inequalities. Identifying the sources of and reducing the rates of insufficient care is therefore a major clinical and public health objective. We propose a specific application of the biopsychosocial model that conceptualizes prenatal and postpartum care quality as health markers that are influenced by psychological factors and family and social context. Clinic attendance data were abstracted from the electronic medical records of N = 291 participants enrolled in a longitudinal pregnancy cohort study of healthy women who have been followed since the first trimester; the Kotelchuck Index (KI) was calculated as an index of perinatal care utilization. Detailed prenatal psychological, social, and sociodemographic data were collected from self-report questionnaire and interview. Bivariate analyses indicated socio-demographic (e.g., race), psychological (e.g., response to perceived racism, affective symptoms, trauma experience), and social and family context (e.g., social support, family size) significantly influenced pre- and post-natal care utilization. Multivariate logistic regression analyses, adjusting for medical complications, identified social and family context as robust predictors of perinatal care utilization. The findings underscore the need for biopsychosocial models of health care and highlight several potential strategies for improving health care utilization.
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Das P, Bandyopadhyay S, Mohammed R, Mallik C, Eyre M, Chakraborti P. Outcome Of Elective Nodal Radiation In Elderly Patients With High Risk Prostate Cancer. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Mahanti A, Joardar SN, Bandyopadhyay S, Ghosh S, Batabyal K, Samanta I. Milk from healthy or infected cattle as a source of multi-drug resistant, AmpC β-lactamase-producing Escherichia coli. INDIAN JOURNAL OF DAIRY SCIENCE 2020. [DOI: 10.33785/ijds.2020.v73i04.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Banerjee A, Batabyal K, Singh AD, Joardar SN, Dey S, Isore DP, Sar TK, Dutta TK, Bandyopadhyay S, Samanta I. Multi-drug resistant, biofilm-producing high-risk clonal lineage of Klebsiella in companion and household animals. Lett Appl Microbiol 2020; 71:580-587. [PMID: 32881009 DOI: 10.1111/lam.13381] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 08/21/2020] [Accepted: 08/22/2020] [Indexed: 01/09/2023]
Abstract
Antimicrobial resistance is a global emergency which needs one health approach to address. The present study was conducted to detect the prevalence of beta-lactamase and biofilm-producing Klebsiella strains in rectal swabs (n = 624) collected from healthy dogs, cats, sheep and goats reared as companion or household animals in India. The dogs and cats were frequently exposed to third- or fourth-generation cephalosporins for therapy. The sheep and goats were occasionally exposed to antibiotics and had environmental exposure. Phenotypical ESBL (n = 93) and ACBL (n = 88)-producing Klebsiella were isolated significantly more (P < 0·05) from companion animals than household animals. Majority of the Klebsiella possessed blaCTX-M-15 . The sequences blaCTX-M-15.2 , blaCTX-M-197 and blaCTX-M-225 are reported first time from the companion animals. All ACBL-producing isolates possessed blaAmpC . The present study detected 65·8% of Klebsiella strains as biofilm producers possessing the studied biofilm associated genes. The isolates showed phenotypical resistance against chloramphenicol, tetracycline, doxycycline, co-trimoxazole, ampicillin, cefotaxime/clavulanic acid. The present study showed that companion and household animals (dogs, cats, sheep, goats) may act as a carrier of ESBL/biofilm-producing, multi-drug resistant, high-risk clonal lineage of Klebsiella.
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Bandyopadhyay S, Das P, Davies J, Puttarachaiah L, Seneviratne L, Lawrence C. Can We Translate Non-inferiority Clinical Trial into Practice? Real World Outcome of Sunitinib and Pazopanib as First Line Targeted Therapy in Metastatic Renal Cell Carcinoma: UK Centre Experience. Clin Oncol (R Coll Radiol) 2020. [DOI: 10.1016/j.clon.2020.01.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Martinez-Sobrido L, Blanco-Lobo P, Rodriguez L, Fitzgerald T, Zhang H, Nguyen P, Anderson CS, Holden-Wiltse J, Bandyopadhyay S, Nogales A, DeDiego ML, Wasik BR, Miller BL, Henry C, Wilson PC, Sangster MY, Treanor JJ, Topham DJ, Byrd-Leotis L, Steinhauer DA, Cummings RD, Luczo JM, Tompkins SM, Sakamoto K, Jones CA, Steel J, Lowen AC, Danzy S, Tao H, Fink AL, Klein SL, Wohlgemuth N, Fenstermacher KJ, el Najjar F, Pekosz A, Sauer L, Lewis MK, Shaw-Saliba K, Rothman RE, Liu ZY, Chen KF, Parrish CR, Voorhees IEH, Kawaoka Y, Neumann G, Chiba S, Fan S, Hatta M, Kong H, Zhong G, Wang G, Uccellini MB, García-Sastre A, Perez DR, Ferreri LM, Herfst S, Richard M, Fouchier R, Burke D, Pattinson D, Smith DJ, Meliopoulos V, Freiden P, Livingston B, Sharp B, Cherry S, Dib JC, Yang G, Russell CJ, Barman S, Webby RJ, Krauss S, Danner A, Woodard K, Peiris M, Perera RAPM, Chan MCW, Govorkova EA, Marathe BM, Pascua PNQ, Smith G, Li YT, Thomas PG, Schultz-Cherry S. Characterizing Emerging Canine H3 Influenza Viruses. PLoS Pathog 2020; 16:e1008409. [PMID: 32287326 PMCID: PMC7182277 DOI: 10.1371/journal.ppat.1008409] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 04/24/2020] [Accepted: 02/19/2020] [Indexed: 01/06/2023] Open
Abstract
The continual emergence of novel influenza A strains from non-human hosts requires constant vigilance and the need for ongoing research to identify strains that may pose a human public health risk. Since 1999, canine H3 influenza A viruses (CIVs) have caused many thousands or millions of respiratory infections in dogs in the United States. While no human infections with CIVs have been reported to date, these viruses could pose a zoonotic risk. In these studies, the National Institutes of Allergy and Infectious Diseases (NIAID) Centers of Excellence for Influenza Research and Surveillance (CEIRS) network collaboratively demonstrated that CIVs replicated in some primary human cells and transmitted effectively in mammalian models. While people born after 1970 had little or no pre-existing humoral immunity against CIVs, the viruses were sensitive to existing antivirals and we identified a panel of H3 cross-reactive human monoclonal antibodies (hmAbs) that could have prophylactic and/or therapeutic value. Our data predict these CIVs posed a low risk to humans. Importantly, we showed that the CEIRS network could work together to provide basic research information important for characterizing emerging influenza viruses, although there were valuable lessons learned.
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MESH Headings
- Animals
- Communicable Diseases, Emerging/transmission
- Communicable Diseases, Emerging/veterinary
- Communicable Diseases, Emerging/virology
- Dog Diseases/transmission
- Dog Diseases/virology
- Dogs
- Ferrets
- Guinea Pigs
- Humans
- Influenza A Virus, H3N2 Subtype/classification
- Influenza A Virus, H3N2 Subtype/genetics
- Influenza A Virus, H3N2 Subtype/isolation & purification
- Influenza A Virus, H3N8 Subtype/classification
- Influenza A Virus, H3N8 Subtype/genetics
- Influenza A Virus, H3N8 Subtype/isolation & purification
- Influenza A virus/classification
- Influenza A virus/genetics
- Influenza A virus/isolation & purification
- Influenza, Human/transmission
- Influenza, Human/virology
- Mice, Inbred BALB C
- Mice, Inbred C57BL
- Mice, Inbred DBA
- United States
- Zoonoses/transmission
- Zoonoses/virology
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Haderk F, Fernández-Méndez C, Shah K, Wu W, Guan J, Rotow J, Allegakoen D, Olivas V, Bandyopadhyay S, Kuo C, Bivona T. B01 Active YAP as a Functional Marker of Drug-Tolerant Persister Cells in EGFR-Mutant and ALK Fusion-Positive NSCLC. J Thorac Oncol 2020. [DOI: 10.1016/j.jtho.2019.12.070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Banerjee M, Kumar A, Batra HS, Bandyopadhyay S, Kapoor R. Are thalassemia patients oxidatively challenged? Med J Armed Forces India 2019; 75:383-388. [PMID: 31719731 DOI: 10.1016/j.mjafi.2017.12.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Accepted: 12/15/2017] [Indexed: 01/19/2023] Open
Abstract
Background Repeated blood transfusions is the mainstay of treatment for beta thalassemia major patients. Multiple blood transfusions lead to significant iron overload in these patients. Iron overload causes liberation of oxygen free radicals and peroxidative lipid injury. This study has been designed to study whether thalassemics suffer from oxidative injury. It also aims to study the quantum of oxidative injury. Methods It is a cross sectional study using cases and controls. Thirty thalassemic patients receiving multiple blood transfusions were included in this study and thirty healthy age and sex matched controls were recruited for the study. Serum ferritin levels, malondialdehyde, nitric oxide levels were estimated. Results Levels of all the three parameters were significantly increased (p < 0.05) in the cases compared to controls. Mean levels of all three parameters were correlated with serum ferritin levels and number of blood transfusions in increasing order. All the parameters showed fair degree of correlation (r ≥ 0.25, p ≤ 0.05). Conclusion Thalassemic patients receiving multiple blood transfusion suffer from iron overload which results in increased oxidative stress.
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Caserta MT, Yang H, Bandyopadhyay S, Qiu X, Gill SR, Java J, McDavid A, Falsey AR, Topham DJ, Holden-Wiltse J, Scheible K, Pryhuber G. Measuring the Severity of Respiratory Illness in the First 2 Years of Life in Preterm and Term Infants. J Pediatr 2019; 214:12-19.e3. [PMID: 31377041 PMCID: PMC6815715 DOI: 10.1016/j.jpeds.2019.06.061] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Revised: 06/10/2019] [Accepted: 06/25/2019] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To develop a valid research tool to measure infant respiratory illness severity using parent-reported symptoms. STUDY DESIGN Nose and throat swabs were collected monthly for 1 year and during respiratory illnesses for 2 years in a prospective study of term and preterm infants in the Prematurity, Respiratory Outcomes, Immune System and Microbiome study. Viral pathogens were detected using Taqman Array Cards. Parents recorded symptoms during respiratory illnesses using a Childhood Origins of Asthma (COAST) scorecard. The COAST score was validated using linear mixed effects regression modeling to evaluate associations with hospitalization and specific infections. A data-driven method was also used to compute symptom weights and derive a new score, the Infant Research Respiratory Infection Severity Score (IRRISS). Linear mixed effects regression modeling was repeated with the IRRISS illness data. RESULTS From April 2013 to April 2017, 50 term, 40 late preterm, and 28 extremely low gestational age (<29 weeks of gestation) infants had 303 respiratory illness visits with viral testing and parent-reported symptoms. A range of illness severity was described with 39% of illness scores suggestive of severe disease. Both the COAST score and IRRISS were associated with respiratory syncytial virus infection and hospitalization. Gestational age and human rhinovirus infection were inversely associated with both scoring systems. The IRRISS and COAST scores were highly correlated (r = 0.93; P < .0001). CONCLUSIONS Using parent-reported symptoms, we validated the COAST score as a measure of respiratory illness severity in infants. The new IRRISS score performed as well as the COAST score.
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Key Words
- auc, area under the curve
- coast, childhood origins of asthma study
- ed, emergency department
- elgans, extremely low gestational age newborns
- hrv, human rhinovirus
- irriss, infant research respiratory infection severity score
- lmer, linear mixed effects regression modeling
- prism, prematurity, respiratory outcomes, immune system and microbiome
- rsv, respiratory syncytial virus
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Banerjee A, Bardhan R, Chowdhury M, Joardar SN, Isore DP, Batabyal K, Dey S, Sar TK, Bandyopadhyay S, Dutta TK, Samanta I. Characterization of beta-lactamase and biofilm producing Enterobacteriaceae isolated from organized and backyard farm ducks. Lett Appl Microbiol 2019; 69:110-115. [PMID: 31087370 DOI: 10.1111/lam.13170] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 05/07/2019] [Accepted: 05/07/2019] [Indexed: 02/06/2023]
Abstract
This study was undertaken to detect the occurrence of beta-lactamase and biofilm producing Enterobacteriaceae in healthy ducks. A total 202 cloacal swabs were collected from ducks kept in organized (n = 92) and backyard (n = 110) farms in West Bengal (India). The ducks had no history of antibiotic intake. Among the 87 phenotypically beta-lactamase producing Escherichia coli, 19 (17·43%), 6 (5·05%) and 15 (13·76%) isolates possessed blaTEM , blaSHV and blaCTX-M respectively. Whereas, 5 (38·46%) Salmonella isolates were found to harbour blaCTX-M . In K. pneumoniae 10 (33·33%), 3 (13·33%), 4 (13·33%) isolates possessed blaTEM , blaSHV and blaCTX-M respectively. The sequences of selected PCR products were found 98% cognate with blaCTX-M-9, blaSHV-12 and blaTEM-1 . Beta-lactamase producing E. coli isolates belonged to 14 different serogroups such as O1, O2, O3, O5, O7, O8, O35, O83, O84, O88, O119, O128, O145 and O157. Moreover, 87 E. coli (79·82%), six Samonella (46·15%) and 13 K. pneumoniae (43·33%) isolates were detected as AmpC producers possessing blaAmpC . Majority of E. coli (46·79%), Salmonella (46·15%) and K. pneumoniae (70%) isolates were detected as biofilm producers and possessed the associated genes (csgA, sdiA, rcsA, rpoS). Significantly higher occurrence of beta-lactamase and biofilm producing Enterobacteriaceae isolates was detected in backyard ducks than organized farms. SIGNIFICANCE AND IMPACT OF THE STUDY: Consumption of antibiotic through feed or during therapy is considered as potential reason for generation of antimicrobial resistant bacteria in birds. This study provides valuable evidence that exposure to contaminated environment may be an additional source for generation of antimicrobial resistant bacteria in backyard ducks. The backyard ducks are reared by marginal farmers in India who cannot offer antibiotics to them either through feed or during therapy due to high cost. The study also reveals a significant correlation between biofilm formation and possession of antimicrobial resistance genes in the bacterial isolates from the ducks.
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Roumanes D, Falsey AR, Quataert S, Secor-Socha S, Lee FEH, Yang H, Bandyopadhyay S, Holden-Wiltse J, Topham DJ, Walsh EE. T-Cell Responses in Adults During Natural Respiratory Syncytial Virus Infection. J Infect Dis 2019; 218:418-428. [PMID: 29920599 DOI: 10.1093/infdis/jiy016] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Accepted: 06/11/2018] [Indexed: 12/17/2022] Open
Abstract
Background The pathogenesis of respiratory syncytial virus (RSV) in older adults may be due to age-related T-cell immunosenescence. Thus, we evaluated CD4 and CD8 T-cell responses during RSV infection in adults across the age spectrum. Methods Peripheral blood mononuclear cells collected during RSV infection in adults, age 26-96 years, were stimulated with live RSV and peptide pools representing F, M, NP, and G proteins and analyzed by flow cytometry. Results There were no significant age-related differences in frequency of CD4+ T cells synthesizing interferon (IFN)γ, interleukin (IL)2, IL4, IL10, or tumor necrosis factor (TNF)α or in CD8+IFNγ+ T cells. IL4+CD4+ T-cell numbers were low, as were IL13 and IL17 responses. However, in univariate analysis, CD4 T-cell IFNγ, IL2, IL4, IL10, and TNFα responses and CD8+IFNγ+ T cells were significantly increased with more severe illness requiring hospitalization. In multivariate analysis, viral load was also associated with increased T-cell responses. Conclusions We found no evidence of diminished RSV-specific CD4 or CD8 T-cell responses in adults infected with RSV. However, adults with severe disease seemed to have more robust CD4 and CD8 T-cell responses during infection, suggesting that disease severity may have a greater association with T-cell responses than age.
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Bandyopadhyay S, Wilkinson I, Giokarinin-Royal T. 16HOW INCORPORATING ‘LEAN’ APPROACH LED TO IMPROVED DELIVERY OF CARE AND REDUCTION IN LENGTH OF HOSPITAL STAY. Age Ageing 2019. [DOI: 10.1093/ageing/afz055.16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Fletcher N, Harper A, Fan R, Singh I, Deirawan H, Tsolakian I, Maclean J, Naaman J, Bandyopadhyay S, Ali-Fehmi R, Morris R, Saed G. Identification of a novel mechanism of survival in epithelial ovarian cancer. Gynecol Oncol 2019. [DOI: 10.1016/j.ygyno.2019.04.209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Ali-Fehmi R, Sakr S, Abdulfatah E, Wakeling E, Yerrapotu N, Tsolakian I, Ujayli D, Naaman J, Bandyopadhyay S, Morris R. Towards early personalized patient management: Molecular classification of endometrial carcinoma applied to endometrial biopsy specimens. Gynecol Oncol 2019. [DOI: 10.1016/j.ygyno.2019.04.417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Sreevatsava V, De S, Bandyopadhyay S, Chaudhury P, Bera AK, Muthiyan R, De AK, Perumal P, Sunder J, Chakraborty G, Bhattacharya D. Variability of the EG95 antigen-coding gene of Echinococcus granulosus in animal and human origin: implications for vaccine development. J Genet 2019; 98:53. [PMID: 31204707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
In the present study, the genetic variability of the EG95 protein-coding gene in several animal and human isolates of Echinococcus granulosus was investigated. A total of 24 isolates collected from cattle, buffalo, sheep, goat, dog and man were amplified by Eg95-coding gene-specific primers. From the generated sequence information, a conceptual amino acid sequence was deduced. Phylogenetically, the Eg95 coding gene belongs to the Eg95-1/Eg95-2/Eg95-3/Eg95-4 cluster. Further confirmation on the maximum composite likelihood analysis revealed that the overall transition/transversion bias was 2.913. This finding indicated thatthere is bias towards transitional and transversional substitution. Using artificial neural networks, a B-cell epitope was predicted on primary sequence information. Stretches of amino acid residues varied between animal and human isolates when hydrophobicity was considered. Flexibility also varied between larval and adult stages of the organism. This observation is important to develop vaccines. However, cytotoxic T-lymphocyte epitopes on primary sequence data remained constant in all isolates. In this study, agretope identification started with hydrophobic amino acids. Amino acids with the same physico-chemical properties were present in the middle. The conformational propensity of the Eg95-coding gene of 156 amino acid residues had α-turns and β-turns, and α-amphipathic regions up to 129, 138-156 and 151-155 residues, respectively. The results indicated potential T-cell antigenic sites. The overall Tajima's D value was negative (-2.404165), indicative of negative selection pressure.
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Sreevatsava V, De S, Bandyopadhyay S, Chaudhury P, Bera AK, Muthiyan R, De AK, Perumal P, Sunder J, Chakraborty G, Bhattacharya D. Variability of the EG95 antigen-coding gene of Echinococcus granulosus in animal and human origin: implications for vaccine development. J Genet 2019. [DOI: 10.1007/s12041-019-1097-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Bhattacharya BK, Green RO, Rao S, Saxena M, Sharma S, Ajay Kumar K, Srinivasulu P, Sharma S, Dhar D, Bandyopadhyay S, Bhatwadekar S, Kumar R. An Overview of AVIRIS-NG Airborne Hyperspectral Science Campaign Over India. CURR SCI INDIA 2019. [DOI: 10.18520/cs/v116/i7/1082-1088] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Wilkinson I, Griffiths S, Bandyopadhyay S, Trangmar P, Giokarini-Royal T. 69CAN P1NP LEVELS AID DECISION MAKING IN PATIENTS WHO SUSTAIN A HIP FRACTURE WHILST ON BISPHOSPHONATE TREATMENT? Age Ageing 2019. [DOI: 10.1093/ageing/afy214.06] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Drobitch JL, Hsiao YC, Wu H, Wang KL, Lynch CS, Bussmann K, Bandyopadhyay S, Gopman DB. Effect of CoFe dusting layer and annealing on the magnetic properties of sputtered Ta/W/CoFeB/CoFe/MgO layer structures. JOURNAL OF PHYSICS D: APPLIED PHYSICS 2019; 53:https://doi.org/10.1088/1361-6463/ab5c97. [PMID: 33060867 PMCID: PMC7552883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
We explored the effect of a CoFe wedge inserted as a dusting layer (0.2 nm-0.4 nm thick) at the CoFeB/MgO interface of a sputtered Ta(2 nm)/W(3 nm)/CoFeB(0.9 nm)/MgO(3 nm)/Ta(2 nm) film-a typical structure for spin-orbit torque devices. Films were annealed at temperatures varying between 300 °C and 400 °C in an argon environment. Ferromagnetic resonance studies and vibrating sample magnetometry measurements were carried out to estimate the effective anisotropy field, the Gilbert damping, the saturation magnetization and the dead layer thickness as a function of the CoFe thickness and across several annealing temperatures. While the as-deposited films present only easy-plane anisotropy, a transition along the wedge from in-plane to out-of-plane was observed across several annealing temperatures, with evidence of a spin-reorientation transition separating the two regions.
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Bandyopadhyay S, Saha N, Saha P. Characterization of Bacterial Cellulose Produced using Media Containing Waste Apple Juice. APPL BIOCHEM MICRO+ 2018. [DOI: 10.1134/s0003683818060042] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Grier A, McDavid A, Wang B, Qiu X, Java J, Bandyopadhyay S, Yang H, Holden-Wiltse J, Kessler HA, Gill AL, Huyck H, Falsey AR, Topham DJ, Scheible KM, Caserta MT, Pryhuber GS, Gill SR. Neonatal gut and respiratory microbiota: coordinated development through time and space. MICROBIOME 2018; 6:193. [PMID: 30367675 PMCID: PMC6204011 DOI: 10.1186/s40168-018-0566-5] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Accepted: 09/28/2018] [Indexed: 05/09/2023]
Abstract
BACKGROUND Postnatal development of early life microbiota influences immunity, metabolism, neurodevelopment, and infant health. Microbiome development occurs at multiple body sites, with distinct community compositions and functions. Associations between microbiota at multiple sites represent an unexplored influence on the infant microbiome. Here, we examined co-occurrence patterns of gut and respiratory microbiota in pre- and full-term infants over the first year of life, a period critical to neonatal development. RESULTS Gut and respiratory microbiota collected as longitudinal rectal, throat, and nasal samples from 38 pre-term and 44 full-term infants were first clustered into community state types (CSTs) on the basis of their compositional profiles. Multiple methods were used to relate the occurrence of CSTs to temporal microbiota development and measures of infant maturity, including gestational age (GA) at birth, week of life (WOL), and post-menstrual age (PMA). Manifestation of CSTs followed one of three patterns with respect to infant maturity: (1) chronological, with CST occurrence frequency solely a function of post-natal age (WOL), (2) idiosyncratic to maturity at birth, with the interval of CST occurrence dependent on infant post-natal age but the frequency of occurrence dependent on GA at birth, and (3) convergent, in which CSTs appear first in infants of greater maturity at birth, with occurrence frequency in pre-terms converging after a post-natal interval proportional to pre-maturity. The composition of CSTs was highly dissimilar between different body sites, but the CST of any one body site was highly predictive of the CSTs at other body sites. There were significant associations between the abundance of individual taxa at each body site and the CSTs of the other body sites, which persisted after stringent control for the non-linear effects of infant maturity. Canonical correlations exist between the microbiota composition at each pair of body sites, with the strongest correlations between proximal locations. CONCLUSION These findings suggest that early microbiota is shaped by neonatal innate and adaptive developmental responses. Temporal progression of CST occurrence is influenced by infant maturity at birth and post-natal age. Significant associations of microbiota across body sites reveal distal connections and coordinated development of the infant microbial ecosystem.
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Pramanick S, Dutta P, Sannigrahi J, Mandal K, Bandyopadhyay S, Majumdar S, Chatterjee S. Metamagnetic transition and observation of spin-fluctuations in the antiferromagnetic Heusler compound Pd 2MnIn. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2018; 30:405803. [PMID: 30160652 DOI: 10.1088/1361-648x/aaddd7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
We report detailed investigations on the structural, magnetic, magneto-transport and calorimetric aspects of a partially ordered Heusler compound Pd2MnIn. The sample shows antiferomagnetic (AFM) state below around 120 K, though positive paramagnetic Curie temperature signifies a complex magnetic ground state with the presence of both ferromagnetic (FM) and AFM correlations. A clear spin-flop type metamagnetic transition is observed as evident from the magnetization and resistivity data. However, non-saturation of magnetization even at 145 kOe of applied field implies that the high field state may be a spin canted state, originating from the enhanced FM correlations by field induced conduction electron spin polarization. The sample shows a profound quadratic temperature dependence of resistivity below about 20-25 K indicating a spin-fluctuation dominated low temperature region. Previous electronic structure calculations show the existence of a subtle balance between superexchange mediated AFM state and an RKKY (Ruderman-Kittel-Kasuya-Yoshida) interaction mediated FM state in Pd2MnIn. Such competing AFM-FM correlations can be accounted for the observed spin fluctuations.
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Shah K, Blakely C, Bivona T, Bandyopadhyay S. P1.13-10 Aurora Kinase A Drives the Evolution of Resistance to Third Generation EGFR Inhibitors in Lung Cancer. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Pradhan S, Patra G, Nanda P, Dandapat P, Bandyopadhyay S, K. Das A. Comparative Microbial Load Assessment of Meat, Contact Surfaces and Water Samples in Retail Chevon meat Shops and Abattoirs of Kolkata, W.B, India. ACTA ACUST UNITED AC 2018. [DOI: 10.20546/ijcmas.2018.705.020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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