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Bhattacharyya P, Roy KS, Das M, Ray S, Balachandar D, Karthikeyan S, Nayak AK, Mohapatra T. Elucidation of rice rhizosphere metagenome in relation to methane and nitrogen metabolism under elevated carbon dioxide and temperature using whole genome metagenomic approach. THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 542:886-898. [PMID: 26556753 DOI: 10.1016/j.scitotenv.2015.10.154] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Revised: 10/29/2015] [Accepted: 10/30/2015] [Indexed: 06/05/2023]
Abstract
Carbon (C) and nitrogen (N) mineralization is one of the key processes of biogeochemical cycling in terrestrial ecosystem in general and rice ecology in particular. Rice rhizosphere is a rich niche of microbial diversity influenced by change in atmospheric temperature and concentration of carbon dioxide (CO2). Structural changes in microbial communities in rhizosphere influence the nutrient cycling. In the present study, the bacterial diversity and population dynamics were studied under ambient CO2 (a-CO2) and elevated CO2+temperature (e-CO2T) in lowland rice rhizosphere using whole genome metagenomic approach. The whole genome metagenomic sequence data of lowland rice exhibited the dominance of bacterial communities including Proteobacteria, Firmicutes, Acidobacteria, Actinobacteria and Planctomycetes. Interestingly, four genera related to methane production namely, Methanobacterium, Methanosphaera, Methanothermus and Methanothermococcus were absent in a-CO2 but noticed under e-CO2T. The acetoclastic pathway was found as the predominant pathway for methanogenesis, whereas, the serine pathway was found as the principal metabolic pathway for CH4 oxidation in lowland rice. The abundances of reads of enzymes in the acetoclastic methanogenesis pathway and serine pathways of methanotrophy were much higher in e-CO2T (328 and 182, respectively) as compared with a-CO2 (118 and 98, respectively). Rice rhizosphere showed higher structural diversities and functional activities in relation to N metabolism involving nitrogen fixation, assimilatory and dissimilatory nitrate reduction and denitrification under e-CO2T than that of a-CO2. Among the three pathways of N metabolism, dissimilarity pathways were predominant in lowland rice rhizosphere and more so under e-CO2T. Consequently, under e-CO2T, CH4 emission, microbial biomass nitrogen (MBN) and dehydrogenase activities were 45%, 20% and 35% higher than a-CO2, respectively. Holistically, a high bacterial diversity and abundances of C and N decomposing bacteria in lowland rice rhizosphere were found under e-CO2T, which could be explored further for their specific role in nutrient cycling, sustainable agriculture and environment management.
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Ray S, Talukdar A, Sonthalia N, Saha M, Kundu S, Khanra D, Guha S, Basu AK, Mukherjee A, Ray D, Ganguly S. Serum lipoprotein ratios as markers of insulin resistance: a study among non-diabetic acute coronary syndrome patients with impaired fasting glucose. Indian J Med Res 2016; 141:62-7. [PMID: 25857496 PMCID: PMC4405942 DOI: 10.4103/0971-5916.154504] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND & OBJECTIVES Recent data suggest that insulin resistance can predict cardiovascular disease independently of the other risk factors, such as hypertension, visceral obesity or dyslipidaemia. However, the majority of available methods to evaluate insulin resistance are complicated to operate, expensive, and time consuming. This study was undertaken to assess whether serum lipoprotein ratios could predict insulin resistance in non-diabetic acute coronary syndrome (ACS) patients. METHODS Ninety non-diabetic patients with impaired fasting glucose admitted with a diagnosis of ACS were included in the study. At the time of admission fasting glucose and insulin concentrations were measured. The homeostatic model assessment-insulin resistance (HOMA-IR) was used for insulin resistance. The fasting serum total cholesterol (TC), triglycerides (TG) and high density lipoprotein cholesterol (HDL-C) levels were checked, and then TC/HDL-C and TG/HDL-C ratios were calculated. The areas under the curves (AUC) of the receiver operating characteristic (ROC) curves were used to compare the power of these serum lipoprotein ratios as markers. RESULTS Lipoprotein ratios were significantly higher in patients with HOMA-IR index > 2.5 as compared to patients with index <2.5 (P < 0.05). Both TG/HDL-C and TC/HDL-C ratios were significantly correlated with HOMA-IR (P<0.05). The area under the ROC curve of the TG/HDL-C and TC/HDL-C ratio for predicting insulin resistance was 0.80 (95% CI, 0.67 to 0.93), 0.78 (95% CI, 0.65 to 0.91), respectively. INTERPRETATION & CONCLUSIONS The findings of this study demonstrate that serum lipoprotein ratios can provide a simple means of identifying insulin resistance and can be used as markers of insulin resistance and cardiovascular diseases risk in adult non-diabetic patients.
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Ray S, Bhol KK. Non cardiogenic pulmonary edema in a case of viperidine snake bite. JOURNAL OF MARINE MEDICAL SOCIETY 2016. [DOI: 10.4103/0975-3605.202982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Vellayappan MV, Venugopal JR, Ramakrishna S, Ray S, Ismail AF, Mandal M, Manikandan A, Seal S, Jaganathan SK. Electrospinning applications from diagnosis to treatment of diabetes. RSC Adv 2016. [DOI: 10.1039/c6ra15252j] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Modern applications of electrospinning.
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Shamsi A, Ray S. Role of AMP-activated protein kinase (AMPK) in vascular endothelial protection. Indian Heart J 2015. [DOI: 10.1016/j.ihj.2015.10.053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Ray S, Hsu CH, Lin FC, Li Z, Kim T, Lin YY. Contrast enhancement for early cancer imaging by Gd-nanoparticles and active feedback MRI. Cancer Imaging 2015. [PMCID: PMC4601756 DOI: 10.1186/1470-7330-15-s1-p2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Ray S, Belch JJ, Craigie AM, Khan F, Kennedy G, Hill A, Barton KL, Dawe RS, Ibbotson SH. Can antioxidant-rich blackcurrant juice drink consumption improve photoprotection against ultraviolet radiation? Br J Dermatol 2015; 174:1101-3. [PMID: 26581666 DOI: 10.1111/bjd.14299] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Mallick MP, Ray S, Medhi R, Bisai S. Elevated serum βhCG and dyslipidemia in second trimester as predictors of subsequent Pregnancy Induced Hypertension. ACTA ACUST UNITED AC 2015; 40:97-101. [PMID: 26402973 DOI: 10.3329/bmrcb.v40i3.25230] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVES To test the hypothesis that pregnant women with high serum βhCG level and serum dyslipidemia in second trimester are more prone to develop subsequent Pregnancy Induced Hypertension (PIH). MATERIALS & METHODS One hundred pregnant women with singleton pregnancy between 14 and 20 weeks of gestation attending antenatal outpatient department (OPD) of SMCH were studied. Serum βhCG was estimated by two-site chemiluminescent-immunometric method. Serum lipid profile was evaluated by enzymatic colorimetric test with Lipid Clearing Factor (LCF). RESULTS Eighteen cases developed PIH while eighty two cases remained normotensive. The serum βhCG level was significantly high (p (see symbol) 0.001) in those women developing PIH. Serum concentration of total cholesterol in women who subsequently developed PIH was significantly higher than that of normotensive group (p (see symbol) 0.05). Mean TG value in PIH group was higher than the normotensive group. Level of LDL in PIH group was also significant (p (see symbol) 0.05). CONCLUSION Present study showed that elevated serum βhCG and Dyslipidemia in second trimester can be considered as predictors of subsequent PIH / Pre-eclampsia. However, there is need of large community based prospective study to validate the result.
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Deeken C, Ray S, Zihni A, Thompson D, Gluckstein J, Lake S, Roll S, Ndungu B, Njihia B, Saidi H, Lorenz R, Stechemesser B, Reinpold W, Dietz U, Germer CT, Winstanley J, Miserez M, Fitzgibbons R, Schumpelick V, de Beaux AC, Zollinger R, Matthews BD, Baalman S, Frisella P, Bandyopadhyay S, Raza S, Manu M, Okinyi W, Macharia M, Neema O. Education. Hernia 2015; 19 Suppl 1:S63-7. [PMID: 26518863 DOI: 10.1007/bf03355328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Vassiliadis A, Zanoni A, Di Leo A, Zanella S, Lauro E, Moscatelli P, Ricci F, Huang H, Wada N, Furukawa T, Kitagawa Y, Hirukawa H, Takesue Y, Saito K, Sato H, Tada T, Choua O, Fu XJ, Yao QY, Yang S, Wang MG, Zhu YL, Cao JX, Shen YM, Togbe JO, Gbessi DG, Dossou FM, Iawani I, Cijan V, Gencic M, Scepanovic M, Bojovic P, Brankovic M, Agresta F, Verza LA, Prando D, Roveran MA, Azabdaftari A, Rubinato L, Vacca U, Lubrano T, Vidotto C, Falcone A, Grasso L, Ghiglione F, Morino M, Nácul M, Cavazzola L, Loureiro M, Bonin E, Ferreira P, Misra MC, Bansal VK, Subodh K, Krisha A, Bansal D, Ray S, Rajeshwari S, Wang P, Jia Z, Zhang FJ, Yan JJ, Zhu YH, Jiang K, Altinli E, Eroglu E, Sertel HI, Hizli F, Jacob B, Bresnaham E, Reiner M, Bates A. Inguinal Hernia: Lap vs Open. Hernia 2015; 19 Suppl 1:S57-62. [PMID: 26518862 DOI: 10.1007/bf03355327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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LeBlanc K, Jensen K, Krarup PM, Jorgensen L, Mynster T, Zappa B, Begolli L, Quazi S, Bhargava A, Luque JB, Suarez Gráu JM, Menchero JG, Moreno JG, Juraro JG, Ferreras ID, Nardi M, Millo P, Usai A, Lorusso R, Grivon M, Persico F, Allieta R, Christoffersen M, Brandt E, Helgstrand F, Westen M, Rosenberg J, Kehlet H, Strandfeit P, Bisgaard T, Vanini P, Kabbara S, Elia E, Piancastelli A, Guglielminetti D, Katsumoto F, Ahlqvist S, Björk D, Jänes A, Weisby-Enbom L, Israelsson L, Cengiz Y, Ndungu B, Kiragu P, Odende K, Jovanovic S, Pejcic V, Filipovic N, Trenkic M, Pavlovic A, Jovanovc B, Tatic M, Jovanovic A, Misra MC, Bansal VK, Subodh H, Krishna A, Bansal D, Ray S, Rajeshwari S, Björklund I, Burman A, Riccio PA, Vetrone G, Linguerri R, Liotta S, Antor M, Scottá M, Khalil H, Ichihara K, Takuo H, Ogawa M, Hidaka S, Hara K, Taki T, Ohashi S, Yoshida K, Galimov O, Shkundin A, Khanov V, Sarik J, Basta M, Bauder A, Kovach S, Fischer J, Tang L, Fei X, Xu M. Incisional Hernia: Daily Cases. Hernia 2015; 19 Suppl 1:S85-92. [PMID: 26518867 DOI: 10.1007/bf03355332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Mouralidarane A, Soeda J, Sugden D, Bocianowska A, Carter R, Ray S, Saraswati R, Cordero P, Novelli M, Fusai G, Vinciguerra M, Poston L, Taylor PD, Oben JA. Maternal obesity programs offspring non-alcoholic fatty liver disease through disruption of 24-h rhythms in mice. Int J Obes (Lond) 2015; 39:1339-48. [PMID: 25971926 DOI: 10.1038/ijo.2015.85] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2015] [Revised: 03/25/2015] [Accepted: 05/06/2015] [Indexed: 02/08/2023]
Abstract
BACKGROUND Maternal obesity increases offspring propensity to metabolic dysfunctions and to non-alcoholic fatty liver disease (NAFLD), which may lead to cirrhosis or liver cancer. The circadian clock is a transcriptional/epigenetic molecular machinery synchronising physiological processes to coordinate energy utilisation within a 24-h light/dark period. Alterations in rhythmicity have profound effects on metabolic pathways, which we sought to investigate in offspring with programmed NAFLD. METHODS Mice were fed a standard or an obesogenic diet (OD), before and throughout pregnancy, and during lactation. Offspring were weaned onto standard or an OD at 3 weeks postpartum and housed in 12:12 light/dark conditions. Biochemical and histological indicators of NAFLD and fibrosis, analysis of canonical clock genes with methylation status and locomotor activity were investigated at 6 months. RESULTS We show that maternal obesity interacts with an obesogenic post-weaning diet to promote the development of NAFLD with disruption of canonical metabolic rhythmicity gene expression in the liver. We demonstrate hypermethylation of BMAL-1 (brain and muscle Arnt like-1) and Per2 promoter regions and altered 24-h rhythmicity of hepatic pro-inflammatory and fibrogenic mediators. CONCLUSIONS These data implicate disordered circadian rhythms in NAFLD and suggest that disruption of this system during critical developmental periods may be responsible for the onset of chronic liver disease in adulthood.
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Ray S, Raychaudhuri U, Chakraborty R. Rice-, Pulse-, Barley-, and Oat-Based Fermented Food Products. CEREAL FOOD WORLD 2015. [DOI: 10.1094/cfw-60-5-0218] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Cox AT, Ayalew Y, White S, Boos CJ, Haworth K, Ray S. Pericarditis and pericardial effusions in the military patient. J ROY ARMY MED CORPS 2015; 161:268-74. [PMID: 26251458 DOI: 10.1136/jramc-2015-000499] [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: 06/26/2015] [Accepted: 06/27/2015] [Indexed: 11/04/2022]
Abstract
The pericardium is the thin double-walled sac encapsulating the heart which has a number of important physiological roles including fixing the heart in the mediastinum, protecting it from cross-organ infection (eg, lung) and lubricating cardiac contraction. The pericardium is associated with several disease syndromes that occasionally affect the military population. These include acute and recurrent pericarditis, pericardial effusion and tamponade, which may result from a large number of different aetiological agents. Pericardial diseases have a wide range of clinical manifestations and the diagnosis of pericardial diseases can be a challenge. This article reviews the anatomy and pathophysiology of pericarditis and pericardial effusions before outlining their clinical features, recommended investigations and management options. Particular emphasis is placed on the impact of these diseases for patients in a military occupational environment.
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Chambers J, Campbell B, Wilson J, Arden C, Ray S. How should specialist competencies in heart valve disease be recognized? QJM 2015; 108:353-4. [PMID: 25609702 DOI: 10.1093/qjmed/hcv002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Matta JT, Garg U, Li W, Frauendorf S, Ayangeakaa AD, Patel D, Schlax KW, Palit R, Saha S, Sethi J, Trivedi T, Ghugre SS, Raut R, Sinha AK, Janssens RVF, Zhu S, Carpenter MP, Lauritsen T, Seweryniak D, Chiara CJ, Kondev FG, Hartley DJ, Petrache CM, Mukhopadhyay S, Lakshmi DV, Raju MK, Madhusudhana Rao PV, Tandel SK, Ray S, Dönau F. Transverse wobbling in ^{135}pr. PHYSICAL REVIEW LETTERS 2015; 114:082501. [PMID: 25768759 DOI: 10.1103/physrevlett.114.082501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2014] [Indexed: 06/04/2023]
Abstract
A pair of transverse wobbling bands is observed in the nucleus ^{135}Pr. The wobbling is characterized by ΔI=1, E2 transitions between the bands, and a decrease in the wobbling energy confirms its transverse nature. Additionally, a transition from transverse wobbling to a three-quasiparticle band comprised of strong magnetic dipole transitions is observed. These observations conform well to results from calculations with the tilted axis cranking model and the quasiparticle rotor model.
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Mitra S, Chakrabarti N, Dutta SS, Ray S, Bhattacharya P, Sinha P, Bhattacharyya A. Gender-specific brain regional variation of neurons, endogenous estrogen, neuroinflammation and glial cells during rotenone-induced mouse model of Parkinson's disease. Neuroscience 2015; 292:46-70. [PMID: 25592425 DOI: 10.1016/j.neuroscience.2014.12.052] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2014] [Revised: 12/29/2014] [Accepted: 12/30/2014] [Indexed: 12/17/2022]
Abstract
Rotenone (RT) produces reactive oxygen species (ROS) by inhibiting the mitochondrial electron transport chain; causing dopaminergic (DA) cell death in the substantia nigra (SN) and simulates other models of induced Parkinson's disease (PD). There is a sincere dearth of knowledge regarding the status of glial cells, neuroprotective estrogen and the status of neuroinflammatory TNF-α in the different brain regions in either sex during healthy, as well as during PD conditions. In the present study of RT-induced mouse model of PD, we have selected the frontal cortex (FC), hippocampus (HC) and SN from either sex of Swiss albino mice as these are the major regions involved during PD pathogenesis. During non pathogenic conditions, the ROS-scavenging enzyme activity varied among the brain regions and also in between genders. The number of DOPA decarboxylase-positive cells, astrocytes and microglia was similar in the respective regions of the brain in both the sexes. The level of proinflammatory cytokine TNF-α was same in the respective FC and HC in either sex except that of SN. The expression level of estrogen and its receptors varied among the three brain regions. During RT treatment, ROS-scavenging enzyme activities increased, DOPA decarboxylase-positive neurons and fibers in DA as well as in norepinephrinergic (NE) systems become degenerated, number of astrocytes decreased and microglial cells increased in those specific brain regions in either of the sexes except in the SN region of males where astrocyte number remained unaltered and microglial cell percentage decreased. TNF-α increased in the FC and SN but remained unaltered in the HC of both sexes. Estradiol level decreased in the HC and SN but the level unevenly varied in the FC. Similarly, the estrogen bound and nuclear-cytosolic receptor α and β also varied differentially among the brain regions of the two sexes. Therefore our present study depicts that there exists a clear variation of neuronal and astroglial cell population, estrogen and its receptor levels in different brain regions of both the sexes during control and RT-treated pathogenic condition and these variations have major implication in PD pathogenesis and progression.
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Chaterjee S, Ghosh S, Ray S, Rudra A. Pain Management After Spinal Surgery. INDIAN JOURNAL OF PAIN 2015. [DOI: 10.4103/0970-5333.145916] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Verma V, Ray S, Bajaj R, Kumar A. Effect of prolonged exercise on blood glucose levels of under-trainee divers : A pilot study. JOURNAL OF MARINE MEDICAL SOCIETY 2015. [DOI: 10.4103/0975-3605.203392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Kundu S, Mitra S, Ganguly J, Mukherjee S, Ray S, Mitra R. Spectrum of diffuse parenchymal lung diseases with special reference to idiopathic pulmonary fibrosis and connective tissue disease: An eastern India experience. Lung India 2014; 31:354-60. [PMID: 25378843 PMCID: PMC4220317 DOI: 10.4103/0970-2113.142115] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Objective: To evaluate the clinical spectrum of diffuse parenchymal lung diseases (DPLD) encountered in the Indian setting and to compare idiopathic pulmonary fibrosis (IPF) and connective tissue disease associated DPLD (CTD-DPLD), the two commonest aetiologies. Materials and Methods: A prospective study of clinical, imaging and laboratory parameters of patients diagnosed as DPLD and followed up in the Pulmonary Medicine Department of a tertiary-care teaching institution in eastern India was conducted over a period of one year. Results: 92 patients of DPLD were diagnosed in the study period with IPF (n = 35, 38.04%), CTD-DPLD (n = 29, 31.5%), hypersensitivity pneumonitis (n = 10, 10.9%), sarcoidosis (n = 5, 5.4%) and silicosis (n = 5, 5.4%) being the common causes. The CTD-DPLD group had a lower mean age (39.5 ± 1.86 vs 56.9 ± 1.12 years), a longer duration of symptoms (3.5 ± 0.27 vs 2.5 ± 0.26 years), more extra pulmonary manifestations, significantly more base line FVC and 6-minute-walk-distance than the IPF patients. 19 patients of IPF (54%) opted for treatment. All the IPF patients had a significant fall in FVC after six months (mean change -0.203 ± 0.01 litres) compared to the CTD-DPLD group (mean change - 0.05 ± 0.04 litres.) Conclusion: CTD-DPLD patients belong to a younger age group, with longer duration of symptoms, more extrapulmonary features, better physiological parameters and better response to therapy than IPF patients. Larger prospective epidemiological studies and enrolment in clinical trials are necessary for better understanding of the spectrum of diffuse parenchymal lung disorders and their therapeutic options.
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Popescu BA, Stefanidis A, Nihoyannopoulos P, Fox KF, Ray S, Cardim N, Rigo F, Badano LP, Fraser AG, Pinto F, Zamorano JL, Habib G, Maurer G, Lancellotti P. Updated standards and processes for accreditation of echocardiographic laboratories from The European Association of Cardiovascular Imaging: an executive summary. Eur Heart J Cardiovasc Imaging 2014; 15:1188-93. [DOI: 10.1093/ehjci/jeu057] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Arianmehr I, Ting DK, Ray S. Effect of a transverse groove on cooling of a surrogate photovoltaic panel. ACTA ACUST UNITED AC 2014. [DOI: 10.1080/00207233.2014.967016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Sarathi Patra P, Das K, Bhattacharyya A, Ray S, Hembram J, Sanyal S, Dhali GK. Natural resolution or intervention for fluid collections in acute severe pancreatitis. Br J Surg 2014; 101:1721-8. [PMID: 25329330 DOI: 10.1002/bjs.9666] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2014] [Revised: 06/23/2014] [Accepted: 09/05/2014] [Indexed: 12/20/2022]
Abstract
BACKGROUND Revisions in terminology of fluid collections in acute pancreatitis have necessitated reanalysis of their evolution and outcome. The course of fluid collections in patients with acute pancreatitis was evaluated prospectively. METHODS Consecutive adults with acute pancreatitis, who had contrast-enhanced CT (CECT) within 5-7 days of symptom onset, were enrolled in a prospective cohort study in a tertiary-care centre. Patients were treated according to standard guidelines. Follow-up transabdominal ultrasonography was done at 4-week intervals for at least 6 months. CECT was repeated at 6-10 weeks, or at any time if there were new or persistent symptoms. Asymptomatic collections were followed until spontaneous resolution. Risk factors for pancreatic pseudocysts or walled-off necrosis (WON) were assessed in multivariable analyses. RESULTS Of 122 patients with acute pancreatitis, 109 were analysed. Some 91 patients (83·5 per cent) had fluid collections at baseline. Eleven of 29 with interstitial oedematous pancreatitis had acute peripancreatic fluid collections, none of which evolved into pseudocysts. All 80 patients with acute necrotizing pancreatitis had at least one acute necrotizing collection (ANC); of these, five patients died (2 after drainage), three underwent successful drainage within 5 weeks, and collections resolved spontaneously in 33 and evolved into WON in 39. By 6 months' follow-up, WON had required drainage in eight patients, resolved spontaneously in 23 and was persistent but asymptomatic in seven. Factors associated with increased risk of WON were blood urea nitrogen 20 mg/dl or more (odds ratio (OR) 10·96, 95 per cent c.i. 2·57 to 46·73; P = 0·001) and baseline ANC diameter greater than 6 cm (OR 14·57, 1·60 to 132·35; P = 0·017). Baseline ANC diameter over 6 cm was the only independent predictor of either the need for drainage or persistence of such collections beyond 6 months (hazard ratio 6·61, 1·77 to 24·59; P = 0·005). CONCLUSION Pancreatic pseudocysts develop infrequently in oedematous acute pancreatitis. Only one-quarter of ANCs either require intervention or persist beyond 6 months, whereas more than one-half of WONs resolve without any intervention within 6 months of onset. Baseline diameter of ANC(s) is an important predictor of outcome.
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Narendra H, Thomas J, Ray S, Fernandes DJ. An analysis of response to neo-adjuvant chemotherapy in patients with locally advanced breast cancer with emphasis on pathological complete response. Indian J Cancer 2014; 51:587-92. [PMID: 26842205 DOI: 10.4103/0019-509x.175316] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
CONTEXT In India, most breast cancer women present at a locally advanced stage. Routine practice in majority of the cancer centers is to administer neo-adjuvant chemotherapy (NACT) followed by loco-regional treatment. Surgery is scheduled after 3 or 4 cycles. The patients who achieve pathological complete response (pCR) are expected do well. AIMS The present study was conducted to analyze our results with NACT, to know pCR rate, to compare pCR rates among various subgroups and to determine the factors which predict pCR. SETTINGS AND DESIGN The study was conducted in a tertiary care university affiliated cancer hospital in South India. SUBJECTS AND METHODS All patients with non-metastatic locally advanced breast cancer and agreed by the hospital tumor board to receive NACT were included. At each visit, response was assessed according to RECIST criteria. Re-staging work up and mammography was done prior to surgery. STATISTICAL ANALYSIS USED Chi square test was used to analyze categorical variables and uni and multivariate analysis were performed to determine the factors predicting pCR rates. RESULTS A total of 84 patients received NACT. Median age was 46 years (ranged from 28 to 66), 46 patients were premenopausal. Totally 72 patients completed the full course before surgery. Clinical response was complete in 26, partial in 52 and 3 had local progression, one stable and two patient developed distant metastasis. Forty-eight patients underwent modified radical mastectomy and breast could be conserved in 34 patients, pCR rate was 36%. CONCLUSIONS Compared with historical controls particularly from India, we could achieve higher pCR rates.
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Ray S, Basak S, Chatterjee P. Malignant Leiomyoblastoma: An Incidental Diagnosis. NEPAL JOURNAL OF OBSTETRICS AND GYNAECOLOGY 2014. [DOI: 10.3126/njog.v7i2.11147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
DOI: http://www.dx.doi.org/10.3126/njog.v7i2.11147 Nepal Journal of Obstetrics and Gynaecology / Vol 7 / No. 2 / Issue 14 / July-Dec, 2012 / 55-56
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