Bidhan C. Bandyopadhyay

Veterans Health Administration

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Co-Authors

S. Barui

University of Calcutta

S. S. De

Techno India University

Samuel Shin

Veterans Health Administration

Indu S. Ambudkar

National Institutes of Health

D. K. Haldar

University of Calcutta

Xibao Liu

National Institute of Dental and Craniofacial Research

Suman Paul

University of Calcutta

Bratati De

Inner Mongolia Agricultural University

Brij B. Singh

The University of Texas Health Science Center at San Antonio

Minu Sanfui

Maulana Abul Kalam Azad University of Technology, West Bengal

Cooperative Institutions

Max Planck Institute for Physics

168

Centre National de la Recherche Scientifique

141

University of Turku

138

Universitat de Barcelona

123

Institut d'Estudis Espacials de Catalunya

117

Turku Centre for Computer Science

TU Dortmund University

Center for Astrophysics Harvard & Smithsonian

Max Planck Society

Max Planck Institute for Radio Astronomy

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Re-engineering Primary Epithelial Cells from Rhesus Monkey Parotid Glands for Use in Developing an Artificial Salivary Gland

Tissue Engineering (2006)

Simon D. Tran T Sugito Giovanni Dipasquale Ana P. Cotrim Bidhan C. Bandyopadhyay

There is no satisfactory conventional treatment for patients who experience irreversible salivary gland damage after therapeutic radiation for head and neck cancer or because of Sjo ¨gren's syndrome.Additionally, if most parenchyma is lost, these patients also are not candidates for evolving gene transfer strategies.To help such patients, several years ago we began to develop an artificial salivary gland.In the present study, we used a non-human primate tissue source, parotid glands from rhesus monkeys, to obtain potential autologous graft cells for development of a prototype device for in situ testing.Herein, we present 3 major findings.First, we show that primary cultures of rhesus parotid gland (RPG) cells are capable of attaining a polarized orientation, with Na + /K + -adenosine triphosphatase, zonula occludens-1, and claudin-1 distributed in specific domains appropriate for epithelial cells.Second, we show that RPG cells exhibit 2 essential epithelial functions required for graft cells in an artificial salivary gland device (i.e., an effective barrier to paracellular water flow and the generation of a moderate transepithelial electrical resistance).Third, we show that RPG cells can express functional water channels, capable of mediating directional fluid movement, after transduction by adenoviral and adeno-associated virus type 2 vectors.Together these results demonstrate that it is feasible to individually prepare RPG cells for eventual use in a prototype artificial salivary gland.

10.1089/ten.2006.12.ft-227

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Formation of massive black holes: interplay of collisions and accretion

Boletin de la Asociacion Argentina de Astronomia La Plata Argentina (2020)

D. R. G. Schleicher P. J. Alister Seguel B. Reinoso M. Z. C. Vergara Tjarda Boekholt

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A simplified first-order reconstruction algorithm for microwave tomography

International Journal of Electronics (1985)

Arup Datta Bidhan C. Bandyopadhyay

ABSTRACT A first-order reconstruction algorithm for microwave tomographic imaging has been developed considering the wave nature of the probing signal. The algorithm has been simplified by neglecting mutual interaction terms. The traditional ray theory which is successfully applied in X-ray and ultrasound tomography, is totally inadequate to explain different electromagnetic phenomena, for example, scattering, diffraction and boundary reflections. A beam concept has been introduced in developing the algorithm. The results of applying the algorithm on a small biological model containing bone, muscle and muscle-like materials have been extremely encouraging indicating the possibility of development of a microwave imaging scheme. The image, however, at present is not as perfect as it should have been from clinical point of view, most probably due to the simplifying assumptions made in developing the algorithm.

Diffraction tomography

Tomographic reconstruction

Microwave Imaging

Reconstruction algorithm

10.1080/00207218508939075

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Citations (4)

A role for AQP5 in activation of TRPV4 by hypotonicity: Concerted involvement of AQP5 and TRPV4 in regulation of cell volume recovery (Journal of Biological Chemistry (2006) 281, (15485-15495))

Journal of Biological Chemistry (2008)

Xibao Liu Bidhan C. Bandyopadhyay Tetsuji Nakamoto Brij B. Singh Wolfgang Liedtke

TRPV4

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Immunohistochemical localization of carbonic anhydrase IV in the human parotid gland

Biotechnic & Histochemistry (2021)

Robert S. Redman Bidhan C. Bandyopadhyay

Carbonic anhydrases (CAs) catalyze the hydration and dehydration of carbon dioxide. They are important for regulating ions, fluid and acid-base balance in many tissues. The location of CAs by cell type is important for understanding their roles in these functions. CAs II and VI have been demonstrated using immunohistochemistry (IHC) in the serous acinar cells of human salivary glands and ducts of rat salivary glands. CA IV has been localized by IHC to the ducts of rat salivary glands. CA IV also is present in human parotid glands as shown by real time-polymerase chain reaction (RT-PCR), but this method does not show the distribution of the CA isozymes by cell type. We investigated the cell-specific distribution of CA IV in the human parotid gland. Sections from five formalin fixed, paraffin embedded specimens of human parotid gland were subjected to IHC for CA IV using a commercial antibody. Moderate to strong reactions were found in the cell membranes and cytoplasm of the intercalated, striated and excretory ducts and capillaries, and reactions in the acini were limited to faint areas in some cells. These results indicate that CA IV participates in the regulation of bicarbonate/carbon dioxide fluxes in the ductal system of the human parotid gland.

Ductal cells

Excretory system

Sublingual gland

10.1080/10520295.2021.1887936

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Citations (2)

Caesariotomy in a captive spotted dear (Axis axis)

Indian Journal of Veterinary Surgery (1996)

Bidhan C. Bandyopadhyay

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Is Age-induced Decline in Immune Response Associated with Hypothalamic Glutamate Receptor Density and Dietary Protein?

Nutritional Neuroscience (2001)

Lina Chakrabarti Bidhan C. Bandyopadhyay Mrinal K. Poddar

Manipulation of dietary protein has been found to be the most useful dictator in the age-associated decline of neuroimmune activity in mammals. In the present study, we sought to clarify the effect of dietary protein on age-induced alterations of hypothalamic glutamatergic activity and immune response. The hypothalamic glutamatergic activity and immune response were found to increase and decrease, respectively, with the increase in age of rats from young (3 months) to old (18 months) maintained with normal (20%) protein diet. Intake of low (5%) protein diet (LPD) and high (40%) protein diet (HPD) under short-term period (7 days) failed to alter the age-associated loss of immune response and increase in hypothalamic glutamatergic activity. However, long-term (30 days) supplementation of LPD retarded the age-induced decline in immune response and increase in hypothalamic glutamatergic activity, whereas, HPD consumption under similar condition potentiated the age-related immunosuppression and increase in hypothalamic glutamatergic activity. These results suggest that (a) the age-associated immunosuppression may be inversely related to the hypothalamic glutamatergic activity and (b) consumption of diets having variable quantity of protein without variation of calorie content modulates immune response and hypothalamic glutamatergic activity depending upon age and duration of dietary supplementation.

Hypoactivity

Immunosuppression

10.1080/1028415x.2001.11747374

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Citations (6)

Formation of massive black holes via collisions and accretion

arXiv (Cornell University) (2018)

D. R. G. Schleicher M. Fellhauer Tjarda Boekholt B. Reinoso Ralf S. Klessen

To explain the observed population of supermassive black holes at z~7, very massive seed black holes or, alternatively, super-Eddington scenarios are needed to reach final masses of the order of 10^9 solar masses. A popular explanation for massive seeds has been the direct collapse model, which predicts the formation of a single massive object due to the direct collapse of a massive gas cloud. Simulations over the last years have however shown that such a scenario is very difficult to achieve. A realistic model of black hole formation should therefore take fragmentation into account, and consider the interaction between stellar-dynamical and gas-dynamical processes. We present here numerical simulations pursued with the AMUSE code, employing an approximate treatment of the gas. Based on these simulations, we show that very massive black holes of 10^4-10^5 solar masses may form depending on the gas supply and the accretion onto the protostars.

Protostar

Black hole (networking)

Fragmentation

Gamma-ray burst progenitors

10.48550/arxiv.1812.02052

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Stabilization of uric acid mixed crystals by melamine

Journal of Crystal Growth (2023)

Madison Ezell Samuel Shin Yuyan Chen Khanh L. Ly Leron Maddi

Crystal (programming language)

10.1016/j.jcrysgro.2023.127134