Awadhesh Kumar, Darshan Panda, Monalisha Biswal, Prajjal Dey, Lambodar Behera, M. J. Baig, Lopamudra Nayak, Umakanta Ngangkham, Srigopal Sharma,
... IndiaSearch for more papers by this authorLopamudra Nayak, Lopamudra Nayak Division of Crop Physiology and Biochemistry, ICAR- ... IndiaSearch for more papers by this authorLopamudra Nayak, Lopamudra Nayak Division of Crop Physiology and Biochemistry, ICAR- ...
Tópico(s): GABA and Rice Research
2019 - Wiley | Starch - Stärke
Laxman Saha, Axel Hofmann, Nkosinathi Luvuno. Jele, Chris Harris,
... X54001, 4000 Durban, South Africa, e-mail: saha.lopamudra@gmail.com Search for other works by this ... X54001, 4000 Durban, South Africa, e-mail: saha.lopamudra@gmail.com A. HOFMANN Department of Geology, University ...
Tópico(s): Paleontology and Stratigraphy of Fossils
2012 - Geological Society of South Africa | South African Journal of Geology
T. Brailsford Robertson, Lopamudra Ray,
1920 - Elsevier BV | Journal of Biological Chemistry
G. S. Tripathi, Lopamudra Das, P. K. Misra, S. D. Mahanti,
We derive an expression for the Knight shift ($K$) in solids, including spin-orbit and many-body effects. We construct in $\stackrel{\ensuremath{\rightarrow}}{k}$ space, using the Bloch representation, the equation of motion of the Green's function in the presence of a periodic potential, spin-orbit interaction, external magnetic field, and electron-nuclear hyperfine interaction. We use a finite-temperature Green's-function method where the thermodynamic potential is expressed in terms of the exact ...
Tópico(s): Quantum, superfluid, helium dynamics
1982 - American Physical Society | Physical review. B, Condensed matter
G. S. Tripathi, Lopamudra Das, P. K. Misra, S. D. Mahanti,
Tópico(s): Atomic and Subatomic Physics Research
1981 - Elsevier BV | Solid State Communications
Lopamudra Das Roy, Latha Pathangey, Teresa L. Tinder, Jorge Schettini, Helen E. Gruber, Pinku Mukherjee,
Abstract Introduction Sites of chronic inflammation are often associated with the establishment and growth of various malignancies including breast cancer. A common inflammatory condition in humans is autoimmune arthritis (AA) that causes inflammation and deformity of the joints. Other systemic effects associated with arthritis include increased cellular infiltration and inflammation of the lungs. Several studies have reported statistically significant risk ratios between AA and breast cancer. Despite ...
Tópico(s): Inflammatory mediators and NSAID effects
2009 - BioMed Central | Breast Cancer Research
Narasimharao V. Marella, Sambit Bhattacharya, Lopamudra Mukherjee, Jinhui Xu, Ronald Berezney,
Abstract Numerous studies indicate that the genome of higher eukaryotes is organized into distinct chromosome territories and that the 3‐D arrangement of these territories may be closely connected to genomic function and the global regulation of gene expression. Despite this progress, the degree of non‐random arrangement remains unclear and no overall model has been proposed for chromosome territory associations. To address this issue, a re‐FISH approach was combined with computational analysis ...
Tópico(s): Chromosomal and Genetic Variations
2009 - Wiley | Journal of Cellular Physiology
Lopamudra Homchaudhuri, Eugenia Polverini, Wen Gao, George Harauz, Joan M. Boggs,
Myelin basic protein (MBP) is a highly post-translationally modified, multifunctional structural component of central nervous system myelin, adhering to phospholipid membranes and assembling cytoskeletal proteins, and has previously been shown to bind SH3 domains in vitro and tether them to a membrane surface [Polverini, E., et al. (2008) Biochemistry 47, 267−282]. Since molecular modeling shows that the Fyn-SH3 domain has a negative surface charge density even after binding the MBP ligand, we have ...
Tópico(s): RNA regulation and disease
2009 - American Chemical Society | Biochemistry
Chris Hinrichs, Vikas Singh, Lopamudra Mukherjee, Guofan Xu, Moo K. Chung, Sterling C. Johnson,
Structural and functional brain images are playing an important role in helping us understand the changes associated with neurological disorders such as Alzheimer's disease (AD). Recent efforts have now started investigating their utility for diagnosis purposes. This line of research has shown promising results where methods from machine learning (such as Support Vector Machines) have been used to identify AD-related patterns from images, for use in diagnosing new individual subjects. In this paper, ...
Tópico(s): Alzheimer's disease research and treatments
2009 - Elsevier BV | NeuroImage
Shanmugam M. Jeyakumar, Pratti Lopamudra, S. Padmini, Nagalla Balakrishna, Nappan Veettil Giridharan, Ayyalasomayajula Vajreswari,
Abstract Background Microsomal stearoyl-CoA desaturase1 (SCD1) is the rate limiting enzyme involved in the biosynthesis of monounsaturated fatty acids (MUFAs); palmitoleic (16:1) and oleic (18:1) acid from their respective substrates palmitic (16:0) and stearic (18:0) acids. The ratio of 18:1 to 18:0 has been implicated in the regulation membrane fluidity and function. SCD1 is abundantly expressed in obese humans as well as rodent models. However, no studies have correlated the fatty acid desaturation ...
Tópico(s): Cholesterol and Lipid Metabolism
2009 - BioMed Central | Nutrition & Metabolism
Soumya P. Rout, K. A. Chowdary, Durga Madhab Kar, Lopamudra Das,
For thousands of years plants and their derivatives are being used for treatment of diabetes. Application of modern science to traditional system of medicine has also given birth to compound like Metformin. More than 400 plants incorporated in approximately 700 recipes are used to treat diabetes mellitus in almost two thirds of the world population. A large number of animal studies to test the claimed activity have demonstrated the hypoglycaemic property of many of these plants. In addition, clinical ...
Tópico(s): Food Science and Nutritional Studies
2009 - | Current Trends in Biotechnology and Pharmacy
Μ. Zeitz, Lopamudra Mukherjee, Sambit Bhattacharya, Jinhui Xu, Ronald Berezney,
Abstract There is growing evidence that chromosome territories have a probabilistic non‐random arrangement within the cell nucleus of mammalian cells. Other than their radial positioning, however, our knowledge of the degree and specificity of chromosome territory associations is predominantly limited to studies of pair‐wise associations. In this study we have investigated the association profiles of eight human chromosome pairs (numbers 1, 2, 3, 4, 6, 7, 8, 9) in the cell nuclei of G 0 ‐arrested ...
Tópico(s): Gene expression and cancer classification
2009 - Wiley | Journal of Cellular Physiology
Vikas Pratap Singh, Lopamudra Mukherjee, Jiming Peng, Jinhui Xu,
In this paper, we study the ensemble clustering problem, where the input is in the form of multiple clustering solutions. The goal of ensemble clustering algorithms is to aggregate the solutions into one solution that maximizes the agreement in the input ensemble. We obtain several new results for this problem. Specifically, we show that the notion of agreement under such circumstances can be better captured using a 2D string encoding rather than a voting strategy, which is common among existing ...
Tópico(s): Stochastic Gradient Optimization Techniques
2009 - Springer Science+Business Media | Machine Learning
Huong Thi Thanh Nguyen, Sandra A. Black, Lopamudra Ray, D. V. Espino, Kyriakos S. Markides,
Background. The purpose of this analysis was to examine the association of sociodemographic variables and health-related conditions with 5-year declines in cognitive function among Mexican American elderly persons. Methods. The cognitive function of 1759 participants was assessed by using the Mini-Mental State Examination (MMSE) in 1993/1994 and again in 1998/1999. Cognitive decline was defined by two sets of criteria: (1) a drop to 17 or below on the MMSE at follow-up, and (2) a decline of at least ...
Tópico(s): Frailty in Older Adults
2002 - Oxford University Press | The Journals of Gerontology Series A
N. N. Dutta, Rohan Malla Baruah, Lopamudra Das,
Adenoid cystic carcinoma is a tumor arising from the minor salivary glands, the palate being the commonest site. It accounts for about 1% of all head and neck malignancies. We report a case with the typical presentation of a palatal growth with extensive intra-cranial invasion. The diagnosis of this case and a brief review of literature is discussed. Final diagnosis of this case was made from cytological reports. The dry smears stained with MGG were found to be definitely superior to the alcohol ...
Tópico(s): Oral and Maxillofacial Pathology
2002 - Springer Nature | Indian Journal of Otolaryngology and Head & Neck Surgery
Lopamudra Ghosh, A. Govindarajan, T. Murugesan, Mahesh Pal, Basudeb Saha,
The methanol extract of Rumex nepalensis Spreng. (Family - Polygonaceae) was assessed for different psychopharmacological activities in rats and mice by evaluation of general behaviour, exploratory behaviour, muscle relaxant activity and phenobarbitone sodium-induced sleeping time. The extract at doses 200 mg/kg and above exhibited a reduction in spontaneous activity (general behavioural profile), a decrease in exploratory behavioural pattern in the Y-maze and Head-dip tests, a reduction in muscle relaxant ...
Tópico(s): Psychological and Educational Research Studies
2002 - Elsevier BV | Phytomedicine
Birte Pantenburg, Fred Heinzel, Lopamudra Das, Peter S. Heeger, Anna Valujskikh,
Abstract Alloreactive T lymphocytes can be primed through direct presentation of donor MHC:peptide complexes on graft cells and through indirect presentation of donor-derived determinants expressed by recipient APCs. The large numbers of determinants on an allograft and the high frequency of the alloreactive repertoire has further led to speculation that exposure to environmental Ags may prime T cells that cross-react with alloantigens. We sought to develop a model in which to test this hypothesis. ...
Tópico(s): Immune Cell Function and Interaction
2002 - American Association of Immunologists | The Journal of Immunology
Lopamudra Devi, Krzysztof J Ptasinski, F.J.J.G. Janssen,
Tar formation is one of the major problems to deal with during biomass gasification. Tar condenses at reduced temperature, thus blocking and fouling process equipments such as engines and turbines. Considerable efforts have been directed on tar removal from fuel gas. Tar removal technologies can broadly be divided into two approaches; hot gas cleaning after the gasifier (secondary methods), and treatments inside the gasifier (primary methods). Although secondary methods are proven to be effective, ...
Tópico(s): Catalysis and Hydrodesulfurization Studies
2002 - Elsevier BV | Biomass and Bioenergy
Neeta Datta, Snigdha Mukherjee, Lopamudra Das, Pijush K. Das,
Active targeting of CpG-containing oligodeoxynucleotide (CpG-ODN) to macrophages was studied by incorporating it in mannose-coated liposomes, using visceral leishmaniasis as the model macrophage disease. Mannosylated liposomal CpG-ODN was more effective than liposomal or free CpG-ODN in inhibiting amastigote multiplication within macrophages. Moreover, in a 60-day mouse model of visceral leishmaniasis, complete elimination of spleen parasite burden was achieved by mannosylated liposomal CpG-ODN, ...
Tópico(s): Reproductive System and Pregnancy
2003 - Wiley | European Journal of Immunology
V. Suba, T. Murugesan, Rashmi Rao, Lopamudra Ghosh, Mahesh Pal, Subhash C. Mandal, Basudeb Saha,
Tópico(s): Phytochemistry and Bioactive Compounds
2003 - Elsevier BV | Fitoterapia
Lopamudra Ghosh, Jiaur R. Gayen, Sanghamitra Sinha, Sanchayita Pal, Mintu Pal, Basudeb Saha,
The antibacterial property of Rumex nepalensis Spreng. was evaluated against some strains of bacteria. The methanol extract of the roots (tested at 200-1000 micro g/disc) showed significant concentration-dependent antibacterial activity.
Tópico(s): Phytochemistry and Biological Activities
2003 - Wiley | Phytotherapy Research
Vikas Singh, Lopamudra Mukherjee, Moo K. Chung,
We study the problem of classifying an autistic group from controls using structural image data alone, a task that requires a clinical interview with a psychologist. Because of the highly convoluted brain surface topology, feature extraction poses the first obstacle. A clinically relevant measure called the cortical thickness has shown promise but yields a rather challenging learning problem--where the dimensionality of the distribution is extremely large and the training set is small. By observing ...
Tópico(s): Cell Image Analysis Techniques
2008 - Springer Science+Business Media | Lecture notes in computer science
Abdiwahab A. Musse, Wen Gao, Lopamudra Homchaudhuri, Joan M. Boggs, George Harauz,
The 18.5 kDa isoform of myelin basic protein (MBP) is multifunctional and has previously been shown to have structural and phenomenological similarities with domains of other membrane- and cytoskeleton-associated proteins such as MARCKS (myristoylated alanine-rich C kinase substrate). Here, we have investigated whether 18.5 kDa MBP can sequester phosphatidylinositol-(4,5)-bis-phosphate (PI(4,5)P2) in membranes, like MARCKS and other "PIPmodulins" do. Using fluorescence-quenching and electron paramagnetic ...
Tópico(s): Neurogenesis and neuroplasticity mechanisms
2008 - American Chemical Society | Biochemistry
Lopamudra Das, Alan D. Levine,
Abstract TGF-β signaling is critical for controlling naive T cell homeostasis and differentiation; however, the biological and biochemical changes induced by TGF-β in effector/memory T cells are poorly defined. We show that although TGF-β inhibits effector/memory peripheral blood T lymphoblast proliferation and IL-2 production, the intensity and kinetics for TCR-induced global tyrosine phosphorylation are markedly increased compared with that in untreated cells or naive T cells. After TCR ligation, ...
Tópico(s): Immunodeficiency and Autoimmune Disorders
2008 - American Association of Immunologists | The Journal of Immunology
Lopamudra Das Roy, Mehnaz Mazumdar, Sarbani Giri,
Abstract Chloroquine (CHQ) is a commonly used antimalarial agent. We evaluated the genotoxic potential of CHQ using chromosome aberration (CA), micronucleus (MN), and sperm head abnormality (SA) assays in vivo in Swiss albino mice. The interaction between a low dose of radiation and CHQ, as well as the effect of vitamin C on CHQ‐induced genotoxicity, was also evaluated. It was observed that CHQ induced CA, as well as MN, in the bone marrow cells under certain treatment conditions. Further, CHQ induced ...
Tópico(s): Retinoids in leukemia and cellular processes
2008 - Wiley | Environmental and Molecular Mutagenesis
Lopamudra Mukherjee, Vikas Singh, Jiming Peng, Jinhui Xu, Μ. Zeitz, Ronald Berezney,
Tópico(s): Advanced Image and Video Retrieval Techniques
2008 - Springer Science+Business Media | Journal of Combinatorial Optimization
Kishore S. Malyavantham, Sambit Bhattacharya, Marcos S. Barbeitos, Lopamudra Mukherjee, Jinhui Xu, Frank O. Fackelmayer, Ronald Berezney,
Abstract Higher order chromatin organization in concert with epigenetic regulation is a key process that determines gene expression at the global level. The organization of dynamic chromatin domains and their associated protein factors is intertwined with nuclear function to create higher levels of functional zones within the cell nucleus. As a step towards elucidating the organization and dynamics of these functional zones, we have investigated the spatial proximities among a constellation of functionally ...
Tópico(s): DNA Repair Mechanisms
2008 - Wiley | Journal of Cellular Biochemistry
Lopamudra Homchaudhuri, Miguel De Avila, Stina B. Nilsson, Kyrylo Bessonov, Graham Smith, Vladimir V. Bamm, Abdiwahab A. Musse, George Harauz, Joan M. Boggs,
Myelin basic protein (MBP), specifically the 18.5 kDa isoform, is a peripheral membrane protein and a major component of mammalian central nervous system myelin. It is an intrinsically disordered and multifunctional protein that binds cytoskeletal and other cytosolic proteins to a membrane surface and thereby acquires ordered structure. These associations are modulated by post-translational modifications of MBP, as well as by interactions of MBP with Ca(2+)-calmodulin (CaM). Enzymatic deimination ...
Tópico(s): Signaling Pathways in Disease
2010 - American Chemical Society | Biochemistry
Prabal Bandyopadhyay, Lopamudra Guha, T. Seenivasagan, Manisha Sathe, Pratibha Sharma, B. D. Parashar, M. P. Kaushik,
A novel series of aryl hydrazono esters (AHE) (1-13) were synthesized (yield 76-98%) to study the oviposition responses in Aedes albopictus (Skuse) mosquitoes for the first time. At a concentration of 10μgml(-1) in dual choice experiment, among the screened compounds, AHE-12 showed remarkable oviposition attractant activity with an oviposition activity index (OAI) of +0.299 (greater than 95% confidence limit) comparable to p-cresol (OAI +0.320) which is well-reported oviposition attractant for Aedes aegypti. ...
Tópico(s): Malaria Research and Control
2010 - Elsevier BV | Bioorganic & Medicinal Chemistry Letters
This article examines the impact of floods on agriculture in Bangladesh and argues that, although severe inundation destroys crops in the monsoon flood months, monsoon floods act as an open-access resource in supplying irrigational input to agriculture. District-level rice and jute productivity data for the period 1978–2000 are analyzed to investigate the long-term impacts of floods in terms of agricultural performance, comparing “more” flood-prone districts with “less” flood-prone districts. In addition, ...
Tópico(s): Agricultural risk and resilience
2010 - Taylor & Francis | Oxford Development Studies