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Samoi TB, Banerjee S, Ghosh B, Jha T, Adhikari N. Exploring crucial structural attributes of quinolinyl methoxyphenyl sulphonyl-based hydroxamate derivatives as ADAM17 inhibitors through classification-dependent molecular modelling approaches. SAR QSAR Environ Res 2024; 35:157-179. [PMID: 38346125 DOI: 10.1080/1062936x.2024.2311689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Accepted: 01/23/2024] [Indexed: 02/15/2024]
Abstract
A Disintegrin and Metalloproteinase 17 (ADAM17), a Zn2+-dependent metalloenzyme of the adamalysin family of the metzincin superfamily, is associated with various pathophysiological conditions including rheumatoid arthritis and cancer. However, no specific inhibitors have been marketed yet for ADAM17-related disorders. In this study, 94 quinolinyl methoxyphenyl sulphonyl-based hydroxamates as ADAM17 inhibitors were subjected to classification-based molecular modelling and binding pattern analysis to identify the significant structural attributes contributing to ADAM17 inhibition. The statistically validated classification-based models identified the importance of the P1' substituents such as the quinolinyl methoxyphenyl sulphonyl group of these compounds for occupying the S1' - S3' pocket of the enzyme. The quinolinyl function of these compounds was found to explore stable binding of the P1' substituents at the S1' - S3' pocket whereas the importance of the sulphonyl and the orientation of the P1' moiety also revealed stable binding. Based on the outcomes of the current study, four novel compounds of different classes were designed as promising ADAM17 inhibitors. These findings regarding the crucial structural aspects and binding patterns of ADAM17 inhibitors will aid the design and discovery of novel and effective ADAM17 inhibitors for therapeutic advancements of related diseases.
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Affiliation(s)
- T B Samoi
- Natural Science Laboratory, Division of Medicinal and Pharmaceutical Chemistry, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, India
| | - S Banerjee
- Natural Science Laboratory, Division of Medicinal and Pharmaceutical Chemistry, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, India
| | - B Ghosh
- Epigenetic Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science-Pilani, Hyderabad, India
| | - T Jha
- Natural Science Laboratory, Division of Medicinal and Pharmaceutical Chemistry, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, India
| | - N Adhikari
- Natural Science Laboratory, Division of Medicinal and Pharmaceutical Chemistry, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, India
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Baidya SK, Banerjee S, Ghosh B, Jha T, Adhikari N. Assessing structural insights into in-house arylsulfonyl L-(+) glutamine MMP-2 inhibitors as promising anticancer agents through structure-based computational modelling approaches. SAR QSAR Environ Res 2023; 34:805-830. [PMID: 37850742 DOI: 10.1080/1062936x.2023.2261842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 09/17/2023] [Indexed: 10/19/2023]
Abstract
MMP-2 is potentially contributing to several cancer progressions including leukaemias. Therefore, considering MMP-2 as a promising target, novel anticancer compounds may be designed. Here, 32 in-house arylsulfonyl L-(+) glutamines were subjected to various structure-based computational modelling approaches to recognize crucial structural attributes along with the spatial orientation for higher MMP-2 inhibition. Again, the docking-based 2D-QSAR study revealed that the Coulomb energy conferred by Tyr142 and total interaction energy conferred by Ala84 was crucial for MMP-2 inhibition. Importantly, the docking-dependent CoMFA and CoMSIA study revealed the importance of favourable steric, electrostatic, and hydrophobic substituents at the terminal phenyl ring. The MD simulation study revealed a lower fluctuation in the RMSD, RMSF, and Rg values indicating stable binding interactions of MMP-2 and these molecules. Moreover, the residual hydrogen bond and their interaction analysis disclosed crucial amino acid residues responsible for forming potential hydrogen bonding for higher MMP-2 inhibition. The results can effectively aid in the design and discovery of promising small-molecule drug-like MMP-2 inhibitors with greater anticancer potential in the future.
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Affiliation(s)
- S K Baidya
- Natural Science Laboratory, Division of Medicinal and Pharmaceutical Chemistry, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, India
| | - S Banerjee
- Natural Science Laboratory, Division of Medicinal and Pharmaceutical Chemistry, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, India
| | - B Ghosh
- Epigenetic Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science-Pilani, Hyderabad, India
| | - T Jha
- Natural Science Laboratory, Division of Medicinal and Pharmaceutical Chemistry, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, India
| | - N Adhikari
- Natural Science Laboratory, Division of Medicinal and Pharmaceutical Chemistry, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, India
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Banerjee S, Baidya SK, Ghosh B, Jha T, Adhikari N. Exploration of structural alerts and fingerprints for novel anticancer therapeutics: a robust classification-QSAR dependent structural analysis of drug-like MMP-9 inhibitors. SAR QSAR Environ Res 2023; 34:299-319. [PMID: 37170840 DOI: 10.1080/1062936x.2023.2209737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Among various matrix metalloproteinases (MMPs), overexpression of MMP9 has been established as a key player in a variety of cancers. Therefore, MMP9 has emerged as a promising biomolecule that may be targeted to design potent inhibitors as novel anticancer therapeutics. In this study, a large database containing 1,123 drug-like MMP-9 inhibitors was considered for robust classification-dependent fragment-based QSAR study through SARpy, Bayesian classification, and recursive partitioning analyses and were validated by both internal and external validation techniques. In a nutshell, all these classification-dependent techniques revealed some common structural alerts and sub-structural fingerprints responsible for modulating MMP-9 inhibition. These observations are in agreement with the interactions obtained from the ligand-bound co-crystal structures of MMP-9 justifying the robustness of the current study. Finally, based on these crucial structural fragments, some new lead compounds were designed and further validated by the binding mode of interaction analysis. Therefore, these findings may be beneficial in designing novel and potential MMP-9 inhibitors in the future as a weapon to combat several cancers.
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Affiliation(s)
- S Banerjee
- Natural Science Laboratory, Division of Medicinal and Pharmaceutical Chemistry, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, India
| | - S K Baidya
- Natural Science Laboratory, Division of Medicinal and Pharmaceutical Chemistry, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, India
| | - B Ghosh
- Epigenetic Research Laboratory, Department of Pharmacy, Birla Institute of Technology and Science-Pilani, Hyderabad, India
| | - T Jha
- Natural Science Laboratory, Division of Medicinal and Pharmaceutical Chemistry, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, India
| | - N Adhikari
- Natural Science Laboratory, Division of Medicinal and Pharmaceutical Chemistry, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, India
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Ghosh B, Adhikary S, Chattopadhyay S, Choudhury S. Achieving Energy Efficiency and Impact of SAR in a WBAN Through Optimal Placement of the Relay Node. Wirel Pers Commun 2023; 130:1861-1884. [PMID: 37206635 PMCID: PMC10069738 DOI: 10.1007/s11277-023-10361-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Accepted: 02/25/2023] [Indexed: 05/21/2023]
Abstract
Wireless Body Area Network (WBAN) is an emerging and promising specialized area in Wireless networks that deals with crucial health-related datasets. Unlike other wireless networks, as this type of network deals with medical facts, losing it is fatal. WBAN is a highly constrained network. Reducing energy consumption and enhancing lifetime are the two most important challenges of WBANs. One way to achieve these is by deploying relay nodes optimally in WBANs. Generally, a relay node is placed at the midpoint of the line joining the source and the destination (D) nodes. We show that such simplistic deployment of the relay nodes is not the optimal deployment, which can hamper the overall lifetime of WBANs. In this paper, we have investigated the best location to deploy a relay node on a human body. We assume that an adaptive decode and forward relay node (R) can move linearly between the source (S) and the destination (D) nodes. Moreover, the assumption is that a relay node can be deployed linearly and that the body part of a human is a flat surface and hard. We have investigated the most energy-efficient data payload size based on the optimally placed relay location. The impact of such a deployment on different system parameters, such as distance (d), payload (L), modulation scheme, specific absorption rate, and an end to end outage (O ) are examined as well. It is observed that in every aspect optimal deployment of the relay node performs an important role to enhance the lifetime of wireless body area networks. Sometimes linear relay deployment is very difficult to implement, especially on the different body parts of the human body. To address these issues, we have examined the optimal region for the relay node based on a 3D non-linear system model. The paper provides guidance for both linear and non-linear relay deployment along with the optimal data payload size under various circumstances and also considered the impact of specific absorption rates on the human body.
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Affiliation(s)
- B. Ghosh
- IT Department, Techno Main, Salt Lake, Kolkata, WB India
| | - S. Adhikary
- IT Department, Jadavpur University, Kolkata, WB India
| | | | - S. Choudhury
- CSE Department, Calcutta University, Kolkata, WB India
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Badola S, Mukherjee S, Ghosh B, Sunil G, Vaitheeswaran G, Garcia-Castro AC, Saha S. Lattice dynamics across the ferroelastic phase transition in Ba 2ZnTeO 6: a Raman and first-principles study. Phys Chem Chem Phys 2022; 24:20152-20163. [PMID: 35993971 DOI: 10.1039/d2cp03137j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Structural phase transitions drive several unconventional phenomena including some illustrious ferroic attributes which are relevant for technological advancements. On this note, we have investigated the ferroelastic structural transition of perovskite-type trigonal Ba2ZnTeO6 across Tc ∼ 150 K. With the help of Raman spectroscopy and density-functional theory (DFT)-based calculations, we report new intriguing observations associated with the phase transition in Ba2ZnTeO6. We observed the presence of a central peak (quasi-elastic Rayleigh profile), huge softening in the soft mode, hysteretic phonon behavior, and signatures of coexistent phases. The existence of a central peak in Ba2ZnTeO6 is manifested by a sharp rise in the intensity of the Rayleigh profile concomitant with the huge damping (or softening) of the soft mode (at ∼31 cm-1) near Tc, shedding light on the lattice dynamics during the phase transition. This is further corroborated by our phonon calculations that show that the soft mode (Eg) in the high-symmetry structure involving TeO6 octahedral rotation (with Ba and Zn translation) condenses into Ag and Bg modes in the C2/m low-symmetry phase. While most of the phonon bands split below Tc confirming the phase transition, we observed thermal hysteretic behavior of phonon modes, which signifies the first-order nature of the transition and the presence of coexisting phases as corroborated by our temperature-dependent X-ray diffraction and specific heat measurements.
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Affiliation(s)
- Shalini Badola
- Indian Institute of Science Education and Research Bhopal, Bhopal 462066, India.
| | - Supratik Mukherjee
- Advanced Centre of Research in High Energy Materials (ACRHEM), University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad 500046, Telangana, India
| | - B Ghosh
- Indian Institute of Science Education and Research Bhopal, Bhopal 462066, India.
| | - Greeshma Sunil
- Indian Institute of Science Education and Research Bhopal, Bhopal 462066, India.
| | - G Vaitheeswaran
- School of Physics, University of Hyderabad, Prof. C. R. Rao Road, Gachibowli, Hyderabad 500046, Telangana, India
| | - A C Garcia-Castro
- School of Physics, Universidad Industrial de Santander, Calle 09 Carrera 27, Bucaramanga, Santander, 680002, Colombia
| | - Surajit Saha
- Indian Institute of Science Education and Research Bhopal, Bhopal 462066, India.
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Ghosh B, Sahoo BK, Jha PK, Kushwaha SK, Chakraborty B, Manjhi KK. Understanding the Impact of Coal Blend Properties on the Coke Strength. Coke Chem 2022. [DOI: 10.3103/s1068364x22070043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Zhong G, Massey L, Thomas S, Ghosh B. 235 Assessing coding of diagnosis for atypical parkinsonian syndromes. J Neurol Neurosurg Psychiatry 2022. [DOI: 10.1136/jnnp-2022-abn.264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BackgroundAtypical Parkinsonian syndromes, including Progressive Supranuclear Palsy (PSP), Multiple System Atrophy (MSA) and Corticobasal Syndrome (CBS), are rare neurodegenerative diseases. Reports showed that the use of the health services for patients with these diseases is underestimated. The NHS uses International Classification of Disease revision 10 (ICD-10) to code health use which has led to error in patient data for these diseases, as they are relatively new entries to this system and there were changes in coding practice in 2016.AimsTo retrospectively investigate the scale of miscoding of PSP, MSA and CBS in England since the introduction of ICD-10.MethodsFreedom of information requests were issued to 150 NHS trusts in England to investigate their method of coding and determine the coding error rate.ResultsThe coding error rates prior to, and after 2016 respectively were: 29.5%, 0% (PSP); 3.8%, 2.3% (MSA); 24.2%, 24.2% (CBS). The indexing for CBS is difficult as no specific coding exists for CBS in ICD-10.ConclusionThe high error rate for PSP is contributed by miscoding of PSP (G23.1) as MND (G12.2), due to the coding techniques employed. These errors have largely been rectified in later versions of ICD-10 with the exception of CBS.ggz1g17@soton.ac.uk
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8
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Jha PK, Madhav M, Ghosh B, Sahoo BK, Kushwaha SK, Manjhi KK. Effect of Microfines Reduction on Coke Quality in a Commercial Oven. Coke Chem 2022. [DOI: 10.3103/s1068364x21100021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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9
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Sahoo BK, Ghosh B, Jha PK, Pankaj PK, Kushwaha SK, Chakraborty B, Manjhi KK, Pradhan N. Effect of Different Size Fractions on Coal Properties. Coke Chem 2022. [DOI: 10.3103/s1068364x21080068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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10
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Chakraborty B, Tirkey S, Mishra S, Jha PK, Pankaj PK, Kumar A, Ghosh B, Sahoo BK. Implementation of an Integrated System for Coke Oven Battery Health Monitoring at Rourkela Steel Plant. Coke Chem 2022. [DOI: 10.3103/s1068364x21050021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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11
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Adhikari N, Banerjee S, Baidya SK, Ghosh B, Jha T. Robust classification-based molecular modelling of diverse chemical entities as potential SARS-CoV-2 3CL pro inhibitors: theoretical justification in light of experimental evidences. SAR QSAR Environ Res 2021; 32:473-493. [PMID: 34011224 DOI: 10.1080/1062936x.2021.1914721] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Accepted: 04/06/2021] [Indexed: 06/12/2023]
Abstract
COVID-19 is the most unanticipated incidence of 2020 affecting the human population worldwide. Currently, it is utmost important to produce novel small molecule anti-SARS-CoV-2 drugs urgently that can save human lives globally. Based on the earlier SARS-CoV and MERS-CoV infection along with the general characters of coronaviral replication, a number of drug molecules have been proposed. However, one of the major limitations is the lack of experimental observations with different drug molecules. In this article, 70 diverse chemicals having experimental SARS-CoV-2 3CLproinhibitory activity were accounted for robust classification-based QSAR analysis statistically validated with 4 different methodologies to recognize the crucial structural features responsible for imparting the activity. Results obtained from all these methodologies supported and validated each other. Important observations obtained from these analyses were also justified with the ligand-bound crystal structure of SARS-CoV-2 3CLpro enzyme. Our results suggest that molecules should contain a 2-oxopyrrolidine scaffold as well as a methylene (hydroxy) sulphonic acid warhead in proper orientation to achieve higher inhibitory potency against SARS-CoV-2 3CLpro. Outcomes of our study may be able to design and discover highly effective SARS-CoV-2 3CLpro inhibitors as potential anticoronaviral therapy to crusade against COVID-19.
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Affiliation(s)
- N Adhikari
- Natural Science Laboratory, Division of Medicinal and Pharmaceutical Chemistry, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, India
| | - S Banerjee
- Natural Science Laboratory, Division of Medicinal and Pharmaceutical Chemistry, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, India
| | - S K Baidya
- Natural Science Laboratory, Division of Medicinal and Pharmaceutical Chemistry, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, India
| | - B Ghosh
- Department of Pharmacy, BITS-Pilani, Hyderabad, India
| | - T Jha
- Natural Science Laboratory, Division of Medicinal and Pharmaceutical Chemistry, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, India
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Champati BB, Jena S, Ray A, Padhiari BM, Haldar T, Mohanty S, Sahoo A, Kar B, Ghosh B, Nayak S. Quality Control and Discrimination of Andrographis paniculata (Burm. f.) Nees based on High Performance Liquid Chromatography Fingerprinting Combined with Chemometric Approaches. Indian J Pharm Sci 2021. [DOI: 10.36468/pharmaceutical-sciences.868] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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13
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Lang AE, Stebbins GT, Wang P, Jabbari E, Lamb R, Morris H, Boxer AL, Boxer (PI) A, Boeve B, Dickerson B, Grossman M, Litvan I, Ljubenkov P, Pantelyat A, Rojas-Martinez J, Tartaglia MC, Wills AM, Morris (PI) H, Amar K, Capps E, Carey G, Church A, Critchley P, Ghosh B, Houlden H, Hu M, Jabbari E, Kobylecki C, Massey L, Molloy S, Nath U, Pavese N, Rowe J. The Cortical Basal ganglia Functional Scale (CBFS): Development and preliminary validation. Parkinsonism Relat Disord 2020; 79:121-126. [DOI: 10.1016/j.parkreldis.2020.08.021] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 08/05/2020] [Accepted: 08/15/2020] [Indexed: 11/28/2022]
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15
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SEDMAKI K, Karnam K, Sharma P, Ghosh B, Kulkarni O. SUN-016 REGULATION OF IL-1β BY HDAC6 AND PKR IN CALCIUM OXALATE CRYSTALS INDUCED ACUTE RENAL INJURY. Kidney Int Rep 2020. [DOI: 10.1016/j.ekir.2020.02.538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Nur I, Ghosh B, Acharjee M. Comparative microbiological analysis of raw fishes and sun-dried fishes collected from the Kawran bazaar in Dhaka city, Bangladesh. Food Res 2020. [DOI: 10.26656/fr.2017.4(3).368] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Along with the raw fishes, dry fishes also have a huge contribution to meet up the demand
of protein in our daily meal. The assay of microbiological quality is therefore needed to
ensure the public health safety. The present study was emphasized on the existence of
pathogenic bacteria in raw and dry fish. A total of 50 samples of raw fishes and sun-dried
fishes was accumulated aseptically for microbiological quality analysis. Isolation of
bacteria was done by spread plate method. All the samples including both (raw and dry)
fishes harbored bacteria and fungi up to 106 CFU/g. E. coli was found in all samples as a
specific pathogen. In case of raw fishes total viable count (TVC) and total coliform count
(E. coli) were recorded up to 2.5x106 CFU/g and 5.2 x104 CFU/g respectively whereas a
significant load of Salmonella spp. was observed in almost all samples. Staphylococcus
spp. and Pseudomonas spp. were present up to 5 x102 CFU/g and 1.8 x 102 CFU/g
respectively. Likewise, total viable count (TVC), total coliform count (E. coli) and fungal
load were recorded in dry fish up 3.50 x 105 CFU/g, 1.2 x103 CFU/g respectively. Fungal
growth was observed in all experimental raw and dried fishes. For most of the pathogenic
isolates, higher rates of resistance were found against Ceftriaxone, Penicillin, Nalidixic
acid, Neomycin. On the other hand, most of the isolates were found to retain higher
sensitivity against Imipenem, Ciprofloxacin, Tetracyclin and Amoxicillin. This data
suggested that the dry fish harbored fewer bacteria than raw fish and sun drying method is
still a useful technique for the preservation of fish.
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Shamim S, Vidya S, Kabir S, Ghosh B. Choroidal metastases as the initial presentation of lung cancer: A rare scenario. Niger J Clin Pract 2019; 20:905-909. [PMID: 28791988 DOI: 10.4103/1119-3077.212439] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Clinical reports of symptomatic intraocular metastasis as the initial presentation of lung cancer are rare. We report the case of a 49-year-old female patient who presented with loss of vision due to choroidal metastases as the initial manifestation of her disseminated lung cancer. This particular patient was referred to us from ophthalmology department as a case of choroidal metastases from unknown primary. Detailed evaluation at our department helped detect the primary to be a nonsmall cell carcinoma of the right lung, which had multiple distant metastases.
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Affiliation(s)
- S Shamim
- Department of Pulmonary Medicine, Calcutta National Medical College and Hospital, Kolkata, West Bengal, India
| | - S Vidya
- Department of Pulmonary Medicine, Calcutta National Medical College and Hospital, Kolkata, West Bengal, India
| | - Skh Kabir
- Department of Pulmonary Medicine, Calcutta National Medical College and Hospital, Kolkata, West Bengal, India
| | - B Ghosh
- Department of Pulmonary Medicine, Calcutta National Medical College and Hospital, Kolkata, West Bengal, India
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Sarma S, Ghosh B, Ray SC, Wang HT, Mahule TS, Pong WF. Electronic structure and magnetic behaviors of exfoliated MoS 2 nanosheets. J Phys Condens Matter 2019; 31:135501. [PMID: 30609419 DOI: 10.1088/1361-648x/aafc12] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The correlation of electronic structure and magnetic behaviors of layered molybdenum disulfide (MoS2) nanosheets, mechanically exfoliated from pristine hexagonal crystal (2H-MoS2) have been studied. Raman spectra show the energy difference (ΔE) between two Raman peaks A 1g and [Formula: see text] was about 20.2 cm-1, indicating the formation of mono-/bi-layered MoS 2 nanosheets as obtained after mechanical exfoliation from pristine 2H-MoS 2 . The absence of the reflection peak (0 0 2) in x-ray diffraction patterns confirms the formation of few-layered and mono-/bi-layered MoS 2 nanosheets with reduced thickness. Mo 3d and S 2p XPS core level peaks shifted to higher energy with the reduction of the number of layers in exfoliated MoS2. As the number of layers decreased, valence band maximum position increased from 1.11 eV (pristine MoS2) to 1.57 eV (mono-/bi-layered MoS 2 nanosheets), whereas the surface work function (Ф) reduced from 4.85 eV (pristine MoS2) to 4.47 eV (mono-/bi-layered MoS2 nanosheets), as observed from UPS (He-I) measurements. UPS (He-II) spectra, as well as VB-PES spectra of mono-/bi-layered MoS 2 nanosheets, exhibits an enhanced valence band density of states (DOS) of S 3p -derived states near Fermi level (E f). Mo L II-edge and S K-edge x-ray absorption near edge structure spectra of mono-/bi-layered MoS 2 nanosheets show the splitting of different peaks that cause a noticeable change in their band structure. Magnetic M-H hysteresis loops measurement clearly demonstrates the increase of room temperature ferromagnetism from pristine to mono-/bi-layer MoS2, due to the existence of defects ('S'-vacancies or defects at the grain boundaries region) and the increase of DOS.
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Affiliation(s)
- Sweety Sarma
- Department of Physics, University of South Africa, Private Bag X6, Florida, 1710, Science Campus, Christiaan de Wet and Pioneer Avenue, Florida Park, Johannesburg, South Africa
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Mondal R, Bobde Y, Ghosh B, Giri TK. Development and Characterization of a Phospholipid Complex for Effective Delivery of Capsaicin. Indian J Pharm Sci 2019. [DOI: 10.36468/pharmaceutical-sciences.598] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Ghosh B, Yadav S, Budhiraja V, Dass P, Rastogi R, Chowdhury S. Anatomical variation of the ulnar artery: clinical and developmental significance. ACTA ACUST UNITED AC 2018. [DOI: 10.4322/jms.331116] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Abstract
Introduction: Variation of the ulnar artery in the upper limb is uncommon. The existence of such a variant is of particular clinical significance, as these arteries are more susceptible to trauma, and can be easily confused with superficial veins during medical and surgical procedures, potentially leading to iatrogenic distal limb ischemia. Case report: During routine dissection we observed a unilateral case of superficial ulnar artery in a 60-year-old male cadaver. It originated from the left brachial artery in the middle of the arm, near to insertion of coracobrachialis muscle. From its origin, it passed downwards in the medial part of arm behind the median nerve and forearm in a supericial plane compared to normal ulnar artery. In the hand, the supericial ulnar artery anastomosed with the palmar branch of the radial artery, creating the supericial palmar arch. Brachial artery divided into the radial and common interosseous arteries in the cubital fossa. The normal ulnar artery was absent. The existence of superficial ulnar artery is undeniably of interest to the clinicians as well as to the anatomists.
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Affiliation(s)
- B. Ghosh
- Department of Anatomy, Dr. Rajendra Prasad Government Medical College, Tanda, Kangra, Himachal Pradesh, India
| | - S. Yadav
- Department of Anatomy, Dr. Rajendra Prasad Government Medical College, Tanda, Kangra, Himachal Pradesh, India
| | - V. Budhiraja
- Department of Anatomy, L.N. Medical College, Bhopal, M.P, India
| | - P. Dass
- Department of Anatomy, Dr. Rajendra Prasad Government Medical College, Tanda, Kangra, Himachal Pradesh, India
| | - R. Rastogi
- Department of Anatomy, L.N. Medical College, Bhopal, M.P, India
| | - S. Chowdhury
- PGT Biology, Kendriya Vidyalaya, Dharmashala Cantt, Himachal Pradesh, India
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Mondal S, Ghosh B, Atreya S, Bhaumik J, Mukhopadhyay A. Role of Gynaecology Oncology Specialist Nurses in Improving Patient Follow-Up and Integration With the Health Care Team. J Glob Oncol 2018. [DOI: 10.1200/jgo.18.69100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Background: All advanced gynecologic cancers treated initially with a curative intent should also be referred to palliative care at the outset for symptom management. Specialist nurses can play an integral role in this process as patients feel more comfortable to relay their symptoms to nurses rather than busy clinicians. The concept of specialist nurses has been introduced in June 2016 in the Gynecologic Oncology Department in Tata Medical Center. We aim evaluate our services through this prospective audit. Aim: i: To assess whether pre and posttreatment counseling and follow-up by gynecologic oncology specialist nurses lead to better patient care in the following areas. Increased patient participation in self-reporting of PROM (patient reported outcome monitoring) and uptake of follow-up methods via e-mail, telephone etc. ii: Coordinate administration of intraperitoneal chemotherapy and follow-up. iii: Detection of posttreatment complications and symptoms by telephonic follow up and coordination with the treating team including quality of life data collection. iv: Communicating MDT decisions to patients and arrange appropriate follow-up. v: Reduction of patient follow-up appointments and distress by coordinating with other departments i.e., palliative care team and gynae/medical oncology at same visit. vi: Develop patient information leaflets and providing preoperative education Methods: Prospective audit for service evaluation. Patients follow-up was done by face to face, telephone, e-mail in the pre and postoperative period, during chemotherapy and follow-up visits by 4 specialist nurses. Results: Between June 2016 and December 2017, specialist nurses conducted follow-up of 225 patients both in preoperative and postoperative period and collected 30 day morbidity data. Preoperative health education was given to all. 36 patients were coordinated with palliative care team on same day with gynecologic visit to reduce harassment/repeat appointments. Postchemotherapy follow-up was done for 80 patients after each cycle of chemotherapy. Coordination for 19 intraperitoneal chemotherapy was done by nurses during a 9 month period. As a result of regular follow-up visits, women were more comfortable in self-reporting of symptoms to the nurse including sensitive issues like body image and sexuality even by nonface to face methods including telephone calls/e-mails and postal mails. This has led to early detection of recurrences in 4 women, participation in multicentric national/international quality of life studies (SOCQER2/ SOCQER IND) and successful organization of survivorship programs in gynecologic oncology. Conclusion: Counseling, education and building up of interpersonal relationship with specialist nurses can improve patient participation. The role of CNS is vital to the advancement of nursing practice.
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Affiliation(s)
| | - B. Ghosh
- Tata Medical Center, Kolkata, India
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Jain V, Raina S, Gheware AP, Singh R, Rehman R, Negi V, Murray Stewart T, Mabalirajan U, Mishra AK, Casero RA, Agrawal A, Ghosh B. Reduction in polyamine catabolism leads to spermine-mediated airway epithelial injury and induces asthma features. Allergy 2018; 73:2033-2045. [PMID: 29729200 DOI: 10.1111/all.13472] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/18/2018] [Indexed: 12/27/2022]
Abstract
BACKGROUND Airway epithelial injury is a crucial component of acute and severe asthma pathogenesis and a promising target for treatment of refractory asthma. However, the underlying mechanism of epithelial injury remains poorly explored. Although high levels of polyamines, mainly spermine, have been found in asthma and comorbidity, their role in airway epithelial injury and the cause of their altered levels in asthma have not been explored. METHODS We measured key polyamine metabolic enzymes in lung samples from normal and asthmatic subjects and in mice with OVA-induced allergic airway inflammation (AAI). Polyamine metabolism was modulated using pharmacologic/genetic modulators. Epithelial stress and apoptosis were measured by TSLP levels and TUNEL assay, respectively. RESULTS We found loss of the polyamine catabolic enzymes spermidine/spermine-N (1)-acetyltransferase-1 (SAT1) and spermine oxidase (SMOX) predominantly in bronchial epithelial cells (BECs) of human asthmatic lung samples and mice with AAI. In naïve mice, SAT1 or SMOX knockdown led to airway hyper-responsiveness, remodeling, and BEC apoptosis. Conversely, in mice with AAI, overexpression of either SAT1 or SMOX alleviated asthmatic features and reduced TSLP levels and BEC apoptosis. Similarly, while pharmacological induction of SAT1 and SMOX using the polyamine analogue bis(ethyl)norspermine (BENSPM) alleviated asthmatic features with reduced TSLP levels and BEC apoptosis, pharmacological inhibition of these enzymes using BERENIL or MDL72527, respectively, worsened them. Spermine accumulation in lungs correlated with BEC apoptosis, and spermine treatment caused apoptosis of human BEAS-2B cells in vitro. CONCLUSIONS Spermine induces BEC injury. Induction of polyamine catabolism may represent a novel therapeutic approach for asthma via reversing BEC stress.
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Affiliation(s)
- V. Jain
- Molecular Immunogenetics Laboratory and Centre of Excellence for Translational Research in Asthma & Lung Disease CSIR‐Institute of Genomics and Integrative Biology (CSIR‐IGIB) Delhi India
- Academy of Scientific and Innovative Research (AcSIR) Chennai India
| | - S. Raina
- Molecular Immunogenetics Laboratory and Centre of Excellence for Translational Research in Asthma & Lung Disease CSIR‐Institute of Genomics and Integrative Biology (CSIR‐IGIB) Delhi India
- Academy of Scientific and Innovative Research (AcSIR) Chennai India
| | - A. P. Gheware
- Molecular Immunogenetics Laboratory and Centre of Excellence for Translational Research in Asthma & Lung Disease CSIR‐Institute of Genomics and Integrative Biology (CSIR‐IGIB) Delhi India
- Academy of Scientific and Innovative Research (AcSIR) Chennai India
| | - R. Singh
- Molecular Immunogenetics Laboratory and Centre of Excellence for Translational Research in Asthma & Lung Disease CSIR‐Institute of Genomics and Integrative Biology (CSIR‐IGIB) Delhi India
- Academy of Scientific and Innovative Research (AcSIR) Chennai India
| | - R. Rehman
- Molecular Immunogenetics Laboratory and Centre of Excellence for Translational Research in Asthma & Lung Disease CSIR‐Institute of Genomics and Integrative Biology (CSIR‐IGIB) Delhi India
- Academy of Scientific and Innovative Research (AcSIR) Chennai India
| | - V. Negi
- Molecular Immunogenetics Laboratory and Centre of Excellence for Translational Research in Asthma & Lung Disease CSIR‐Institute of Genomics and Integrative Biology (CSIR‐IGIB) Delhi India
- Academy of Scientific and Innovative Research (AcSIR) Chennai India
| | - T. Murray Stewart
- The Sidney Kimmel Comprehensive Cancer Center School of Medicine Johns Hopkins University Baltimore MD USA
| | - U. Mabalirajan
- Molecular Immunogenetics Laboratory and Centre of Excellence for Translational Research in Asthma & Lung Disease CSIR‐Institute of Genomics and Integrative Biology (CSIR‐IGIB) Delhi India
- Academy of Scientific and Innovative Research (AcSIR) Chennai India
| | - A. K. Mishra
- Molecular Immunogenetics Laboratory and Centre of Excellence for Translational Research in Asthma & Lung Disease CSIR‐Institute of Genomics and Integrative Biology (CSIR‐IGIB) Delhi India
- Academy of Scientific and Innovative Research (AcSIR) Chennai India
| | - R. A. Casero
- The Sidney Kimmel Comprehensive Cancer Center School of Medicine Johns Hopkins University Baltimore MD USA
| | - A. Agrawal
- Molecular Immunogenetics Laboratory and Centre of Excellence for Translational Research in Asthma & Lung Disease CSIR‐Institute of Genomics and Integrative Biology (CSIR‐IGIB) Delhi India
- Academy of Scientific and Innovative Research (AcSIR) Chennai India
| | - B. Ghosh
- Molecular Immunogenetics Laboratory and Centre of Excellence for Translational Research in Asthma & Lung Disease CSIR‐Institute of Genomics and Integrative Biology (CSIR‐IGIB) Delhi India
- Academy of Scientific and Innovative Research (AcSIR) Chennai India
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Pramanik A, Datta AK, Das D, Kumbhakar DV, Ghosh B, Mandal A, Gupta S, Saha A, Sengupta S. Assessment of Nanotoxicity (Cadmium Sulphide and Copper Oxide) Using Cytogenetical Parameters in Coriandrum sativum L. (Apiaceae). CYTOL GENET+ 2018. [DOI: 10.3103/s0095452718040084] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Ghosh B, Mukherjee M. Emergence of co-production of plasmid-mediated AmpC beta-lactamase and ESBL in cefoxitin-resistant uropathogenic Escherichia coli. Eur J Clin Microbiol Infect Dis 2016; 35:1449-54. [DOI: 10.1007/s10096-016-2683-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Accepted: 05/13/2016] [Indexed: 10/21/2022]
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Ghosh B, Cain KD, Nowak BF, Bridle AR. Microencapsulation of a putative probiotic Enterobacter species, C6-6, to protect rainbow trout, Oncorhynchus mykiss (Walbaum), against bacterial coldwater disease. J Fish Dis 2016; 39:1-11. [PMID: 25272249 DOI: 10.1111/jfd.12311] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2014] [Revised: 08/15/2014] [Accepted: 08/19/2014] [Indexed: 06/03/2023]
Abstract
Flavobacterium psychrophilum is the causative agent of bacterial coldwater disease (BCWD), which has a major impact on salmonid aquaculture globally. An Enterobacter species, C6-6, isolated from the gut of rainbow trout, Oncorhynchus mykiss (Walbaum), has been identified as a potential probiotic species providing protection against BCWD. This study examined the effects of alginate microencapsulation on the protective efficacy of C6-6 against BCWD in vivo when administered to rainbow trout fry orally or by intraperitoneal (IP) injection. Viable C6-6 bacteria were microencapsulated successfully, and this process (microencapsulation) did not significantly deteriorate its protective properties as compared to the administration of non-microencapsulated C6-6 bacteria. Both oral and IP delivery of C6-6 achieved significantly better protection than control treatments that did not contain C6-6 bacteria. The highest relative percent survival (RPS) resulted from IP delivery (71.4%) and was significantly greater than the highest oral RPS (38.6%). Successful intestinal colonization was not critical to protective effects of C6-6. The study showed that C6-6 administration, with or without encapsulation, was a viable choice for protecting fry from BCWD especially when administered intraperitoneally.
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Affiliation(s)
- B Ghosh
- National Centre for Marine Conservation and Resource Sustainability, University of Tasmania, Launceston, Tasmania, Australia
| | - K D Cain
- Department of Fish and Wildlife Resources and the Aquaculture Research Institute, University of Idaho, Moscow, Idaho, USA
| | - B F Nowak
- National Centre for Marine Conservation and Resource Sustainability, University of Tasmania, Launceston, Tasmania, Australia
| | - A R Bridle
- National Centre for Marine Conservation and Resource Sustainability, University of Tasmania, Launceston, Tasmania, Australia
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Prasad N, Chattopadhaya R, Ghosh S, Goswami S, Ghosh B, Chakraborty P, Chakravarty B. Testicular sperm extraction followed by intracytoplasmic sperm injection choice of treatment for the apprehensive couples having collection problem. Fertil Steril 2015. [DOI: 10.1016/j.fertnstert.2015.07.763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Gulati S, Chattopadhyay R, Ghosh B, Yasmin S, Ghosh S, Bose G, Chakraborty P, Chakravarty B. Treatment with combined antioxidant formulation before ICSI improves pregnancy rate in couples with obstructive azoospermia. Fertil Steril 2015. [DOI: 10.1016/j.fertnstert.2015.07.760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Goswami S, Yasmin S, Chakraborty P, Chattopadhyay R, Ghosh S, Goswami M, Ghosh B, Chakravarty B. Role of dietary antioxidant supplementation in treatment of idiopathic male infertility: promising evidence from a sub-continental study. Fertil Steril 2015. [DOI: 10.1016/j.fertnstert.2015.07.901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Kamisetty H, Ghosh B, Langmead CJ, Bailey-Kellogg C. Learning sequence determinants of protein:protein interaction specificity with sparse graphical models. J Comput Biol 2015; 22:474-86. [PMID: 25973864 DOI: 10.1089/cmb.2014.0289] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
In studying the strength and specificity of interaction between members of two protein families, key questions center on which pairs of possible partners actually interact, how well they interact, and why they interact while others do not. The advent of large-scale experimental studies of interactions between members of a target family and a diverse set of possible interaction partners offers the opportunity to address these questions. We develop here a method, DgSpi (data-driven graphical models of specificity in protein:protein interactions), for learning and using graphical models that explicitly represent the amino acid basis for interaction specificity (why) and extend earlier classification-oriented approaches (which) to predict the ΔG of binding (how well). We demonstrate the effectiveness of our approach in analyzing and predicting interactions between a set of 82 PDZ recognition modules against a panel of 217 possible peptide partners, based on data from MacBeath and colleagues. Our predicted ΔG values are highly predictive of the experimentally measured ones, reaching correlation coefficients of 0.69 in 10-fold cross-validation and 0.63 in leave-one-PDZ-out cross-validation. Furthermore, the model serves as a compact representation of amino acid constraints underlying the interactions, enabling protein-level ΔG predictions to be naturally understood in terms of residue-level constraints. Finally, the model DgSpi readily enables the design of new interacting partners, and we demonstrate that designed ligands are novel and diverse.
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Affiliation(s)
| | - Bornika Ghosh
- 3Department of Computer Science, Dartmouth, Hanover, New Hampshire
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Kamisetty H, Ghosh B, Langmead CJ, Bailey-Kellogg C. Learning Sequence Determinants of Protein:protein Interaction Specificity with Sparse Graphical Models. Res Comput Mol Biol 2014; 8394:129-143. [PMID: 25414914 DOI: 10.1007/978-3-319-05269-4_10] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
In studying the strength and specificity of interaction between members of two protein families, key questions center on which pairs of possible partners actually interact, how well they interact, and why they interact while others do not. The advent of large-scale experimental studies of interactions between members of a target family and a diverse set of possible interaction partners offers the opportunity to address these questions. We develop here a method, DgSpi (Data-driven Graphical models of Specificity in Protein:protein Interactions), for learning and using graphical models that explicitly represent the amino acid basis for interaction specificity (why) and extend earlier classification-oriented approaches (which) to predict the ΔG of binding (how well). We demonstrate the effectiveness of our approach in analyzing and predicting interactions between a set of 82 PDZ recognition modules, against a panel of 217 possible peptide partners, based on data from MacBeath and colleagues. Our predicted ΔG values are highly predictive of the experimentally measured ones, reaching correlation coefficients of 0.69 in 10-fold cross-validation and 0.63 in leave-one-PDZ-out cross-validation. Furthermore, the model serves as a compact representation of amino acid constraints underlying the interactions, enabling protein-level ΔG predictions to be naturally understood in terms of residue-level constraints. Finally, as a generative model, DgSpi readily enables the design of new interacting partners, and we demonstrate that designed ligands are novel and diverse.
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Zhang C, Jin Y, Ziemba KS, Fletcher AM, Ghosh B, Truit E, Yurek DM, Smith GM. Long distance directional growth of dopaminergic axons along pathways of netrin-1 and GDNF. Exp Neurol 2013; 250:156-64. [PMID: 24099728 DOI: 10.1016/j.expneurol.2013.09.022] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2013] [Revised: 09/26/2013] [Accepted: 09/26/2013] [Indexed: 12/20/2022]
Abstract
Different experimental and clinical strategies have been used to promote survival of transplanted embryonic ventral mesencephalic (VM) neurons. However, few studies have focused on the long-distance growth of dopaminergic axons from VM transplants. The aim of this study is to identify some of the growth and guidance factors that support directed long-distance growth of dopaminergic axons from VM transplants. Lentivirus encoding either glial cell line-derived neurotrophic factor (GDNF) or netrin-1, or a combination of lenti-GDNF with either lenti-GDNF family receptor α1 (GFRα-1) or lenti-netrin-1 was injected to form a gradient along the corpus callosum. Two weeks later, a piece of embryonic day 14 VM tissue was transplanted into the corpus callosum adjacent to the low end of the gradient. Results showed that tyrosine hydroxylase (TH(+)) axons grew a very short distance from the VM transplants in control groups, with few axons reaching the midline. In GDNF or netrin-1 expressing groups, more TH(+) axons grew out of transplants and reached the midline. Pathways co-expressing GDNF with either GFRα-1 or netrin-1 showed significantly increased axonal outgrowth. Interestingly, only the GDNF/netrin-1 combination resulted in the majority of axons reaching the distal target (80%), whereas along the GDNF/GFRα-1 pathway only 20% of the axons leaving the transplant reached the distal target. This technique of long-distance axon guidance may prove to be a useful strategy in reconstructing damaged neuronal circuits, such as the nigrostriatal pathway in Parkinson's disease.
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Affiliation(s)
- C Zhang
- Department of Physiology, University of Kentucky, Lexington, KY 40536, USA; Spinal Cord and Brain Injury Research Center (SCoBIRC), University of Kentucky, Lexington, KY 40536, USA
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Singh RG, Rajak M, Ghosh B, Agrawal A, Dubey GP. Comparative evaluation of fosinopril and herbal drug Dioscorea bulbifera in patients of diabetic nephropathy. Saudi J Kidney Dis Transpl 2013; 24:737-42. [PMID: 23816723 DOI: 10.4103/1319-2442.113866] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Worldwide, diabetic nephropathy is one of the leading causes of end-stage renal failure. This hospital-based single-center prospective open-label randomized case-control interventional study was performed to evaluate and compare the native drug Dioscorea bulbifera with fosinopril in the management of diabetic nephropathy. Patients with diabetic nephropathy with proteinuria >500 mg/day or albuminuria >300 mg/ day, S Cr ≤2.5 mg/dL and hypertension controlled with a single drug were included into the study and were divided into three groups according to the interventional drugs that they were given; group A (n = 46) on fosinopril (5-40 mg/day), group B (n = 45) on Dioscorea bulbifera (500 mg BD) and group C (n = 46) on neither of these drugs. All necessary laboratory investigations needed to assess the effect of both the drugs were carried out. Patients were followed-up for six months. The study included 137 patients (M:F 2.61:1) with an age range of 19-76 years. At the sixth-month follow-up, a significant decrease in the systolic blood pressure was noted in all three groups whereas the diastolic blood pressure decreased significantly only in group B. There was significantly better control of both systolic and diastolic blood pressures in group B than in the other groups. Although fasting blood sugar was poorly controlled in the initial visit in all three groups, there was a significant decrease at the sixth-month follow-up in all three groups. Moreover, the decrease was significantly more pronounced in group B than in the other two groups. Low-density lipoprotein decreased significantly only in group B. Proteinuria, serum transforming growth factor-β, interleukin-6 (IL-6) and C-reactive protein decreased in both group A and group B, more so in the latter, but the differences between the groups were not statistically significant. Importantly, proteinuria and serum IL-6 showed an increasing trend in group C. It can be concluded that Dioscorea bulbifera was more effective than fosinopril in controlling blood pressure, glycemia, cholesterolemia and inflammatory state in diabetic nephropathy. Both agents decreased proteinuria. However, creatinine clearance significantly decreased with both the drugs, more so with Dioscera, and thus further evaluation with a larger trial is needed.
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Affiliation(s)
- R G Singh
- Department of Nephrology, Banaras Hindu University, Varanasi, Uttar Pradesh, India
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Sengupta U, Ghosh B, Pahari D. Online haemodiafiltration, a new form of dialysis. J Indian Med Assoc 2013; 111:534-541. [PMID: 24783392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
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Gorain B, Choudhury H, Halder D, Sarkar A, Sarkar P, Biswas E, Ghosh B, Pal T. A Comparative Pharmacokinetic Study of a Fixed Dose Combination for Essential Hypertensive Patients: A Randomized Crossover Study in Healthy Human Volunteers. Drug Res (Stuttg) 2013. [DOI: 10.1055/s-0033-1343457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- B. Gorain
- Department of Pharmaceutical Technology, Bioequivalence Study Centre, Jadavpur University, Kolkata, India
| | - H. Choudhury
- Department of Pharmaceutical Technology, Bioequivalence Study Centre, Jadavpur University, Kolkata, India
| | - D. Halder
- Department of Pharmaceutical Technology, Bioequivalence Study Centre, Jadavpur University, Kolkata, India
| | - A. Sarkar
- Department of Pharmaceutical Technology, Bioequivalence Study Centre, Jadavpur University, Kolkata, India
| | - P. Sarkar
- Department of Pharmaceutical Technology, Bioequivalence Study Centre, Jadavpur University, Kolkata, India
| | - E. Biswas
- Department of Pharmaceutical Technology, Bioequivalence Study Centre, Jadavpur University, Kolkata, India
| | - B. Ghosh
- Department of Pharmacology, Kolkata Medical College and Hospital, Kolkata, India
| | - T. Pal
- Department of Pharmaceutical Technology, Bioequivalence Study Centre, Jadavpur University, Kolkata, India
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Gorain B, Choudhury H, Halder D, Sarkar AK, Sarkar P, Biswas E, Ghosh B, Pal TK. A comparative pharmacokinetic study of a fixed dose combination for essential hypertensive patients: a randomized crossover study in healthy human volunteers. Drug Res (Stuttg) 2013; 63:177-84. [PMID: 23471702 DOI: 10.1055/s-0033-1334882] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
BACKGROUND This study was aimed to investigate the relative bioavailability of fixed-dose-combination (FDC) product of amlodipine, telmisartan and hydrochlorothiazide with individual marketed products in healthy male volunteers. Control of blood pressure with fixed dose combination of the above drugs acting through different mechanism have a benefit of convenient dosing in terms of compliance, lower the dose and subsequently reduce the side effects. METHODS The authors investigated the relative bioavailability under a fasting state of the 3 drugs in a randomized, open-label, 2-treatment, 2-period, 2-sequence, crossover bioequivalence study with a washout period of 21 days. Plasma concentration of the analytes were assayed in timed samples with a simple, highly sensitive and rapid validated method using HPLC coupled to tandem mass spectrometry that had a lower limit of quantification of 1 ng/mL for all the 3 components. RESULTS Test and reference formulations gave a mean Cmax of 5.234±0.914 ng/mL and 4.991±0.563 ng/mL, 108.839±13.601 ng/mL and 114.783±12.315 ng/mL and 97.814±10.779 ng/mL and 93.731±10.018 ng/mL for amlodipine, telmisartan and hydrochlorothiazide respectively. The AUC0-t of amlodipine, telmisartan and hydrochlorothiazide was 161.484 ng.h/mL, 1 917.644 ng.h/mL and 822.847 ng.h/mL for test formulation and 162.108 ng.h/mL, 2 014.764 ng.h/mL and 829.323 ng.h/mL for reference in the fasting state. CONCLUSION The 90% confidence intervals for the test/reference ratio of the pharmacokinetic parameters in fasting state (mean Cmax, AUC0-t, and AUC0-∞) were within the acceptable range of 80.00-125.00. Thus, these findings clearly indicate that the FDC product is bioequivalent with the individual marketed products in terms of rate and extent of drug absorption and is well tolerated with no significant adverse reactions.
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Affiliation(s)
- B Gorain
- Department of Pharmaceutical Technology, Bioequivalence Study Centre, Jadavpur University, Kolkata, India
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Abstract
The survival of transplant recipients is significantly lower than age-matched controls in the general population. The aim of this study was to analyze the trends in mortality of renal allograft recipients at our centre. We retrospectively analyzed data from all patients who were transplanted between October 1988 and June 2010 and were followed at our center. Patients were considered to have death with graft function (DWGF) if death was not preceded by return to dialysis or re-transplantation. The study included 98 renal allograft recipients (male : female – 7.99 : 1). The mean recipient and donor ages were 35.06 ± 11.84 (range: 15–69) and 41.17 ± 10.44 (range: 22–60) years, respectively. Basic kidney diseases were CGN (chronic glomerulonephritis) (60.20%), CIN (chronic interstitial nephritis) (15.31%), DN (diabetic nephropathy) (8.16%), ADPKD (autosomal dominant polycystic kidney disease) (2.04%) and others (14.29%). They were followed up for a mean 79.91 ± 60.05 patient-months. Mortality occurred in 25 (25.51%) patients (male : female – 4 : 1). Causes of death were sepsis/infection (36%), coronary artery disease (28%), CVA (8%), failed graft (4%), and rest unknown (24%). DWGF was 88% of total death and contributed to 78.57% of total graft loss. Overall patient survival at 1, 5, 10, and 15 years were 90.8%, 80.2%, 65.6%, and 59.1%, respectively (Kaplan–Meier analysis). Those who died exhibited significant differences in recipient's age (median 40 years vs 31 years, P=0.007), pretransplantation hypertension (HTN) (100% vs 65.75%, P<0.001), post-transplant infection (76% vs 42.47%, P=0.005), coronary artery disease (28% vs 1.37%, P<0.001), and serum creatinine at last follow up (median 2.3mg/dL vs 1.56mg/dL, P=0.003). Cardiovascular disease, in addition to infection, is an important cause of death during the first 15 years following renal transplantation even in nondiabetic recipients. Death with functioning graft is of concern.
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Affiliation(s)
- J Prakash
- Department of Nephrology, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India
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Abstract
Renal cortical necrosis (RCN) is a rare cause of acute renal failure (ARF). There is no clinical case report of RCN in a live kidney donor. A 48-year-old female kidney donor developed sudden anuria five hours postnephrectomy and remained anuric for more than three months on maintenance hemodialysis. Laboratory investigations revealed the features of hemolytic uremic syndrome. Contrast-enhanced computed tomography scan of abdomen showed hypoattenuated subcapsular rim of renal cortex favoring diagnosis of RCN. To the best of our knowledge, this is the first clinical case report of RCN in a live kidney donor in world literature.
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Affiliation(s)
- J Prakash
- Department of Nephrology, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India
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Abstract
Renal cortical necrosis (RCN) is a rare cause of acute renal failure (ARF). There is no clinical case report of RCN in a live kidney donor. A 48-year-old female kidney donor developed sudden anuria five hours postnephrectomy and remained anuric for more than three months on maintenance hemodialysis. Laboratory investigations revealed the features of hemolytic uremic syndrome. Contrast-enhanced computed tomography scan of abdomen showed hypoattenuated subcapsular rim of renal cortex favoring diagnosis of RCN. To the best of our knowledge, this is the first clinical case report of RCN in a live kidney donor in world literature.
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Affiliation(s)
- J Prakash
- Department of Nephrology, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India
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Ghosh B, Sardar M, Lahiri S, Banerjee S. Observation of superparamagnetism to flux closure behaviour in ZnO nanoparticle agglomerates. J Phys Condens Matter 2012; 24:366002. [PMID: 22892994 DOI: 10.1088/0953-8984/24/36/366002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
In this paper we have tried to understand the nature of magnetism in ZnO nanoparticle samples with an intrinsic 50 ppm trace of Fe impurity. When the samples are annealed we observe formation of nanoparticle agglomerates and the size increases with annealing temperature. When the sample is annealed at 600 °C we observe superparamagnetic behaviour, and the magnetic hysteresis along with the coercive field below the blocking temperature is almost independent of the cooling field. When the sample is annealed at 900 °C we observe reduction of saturation magnetization but the magnetic hysteresis and the coercive field are now dependent on the cooling field, indicating magnetic correlation and ordering within the agglomerated nanograins. We propose a simple model that explains the reduction of magnetization as being due to a vortex-state-like flux closure formation.
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Affiliation(s)
- B Ghosh
- Surface Physics Division, Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Kolkata 700 064, India
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Ghosh B, Brojen T, Banerjee S, Singh N, Singh S, Sharma OP, Prakash J. The high prevalence of chronic kidney disease-mineral bone disorders: A hospital-based cross-sectional study. Indian J Nephrol 2012; 22:285-91. [PMID: 23162273 PMCID: PMC3495351 DOI: 10.4103/0971-4065.101249] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Mineral bone disorder (MBD) is an important complication of chronic kidney disease (CKD). However, there are limited data on the pattern of MBD in Indian CKD population. The aim of this study was to describe spectrum of MBD in patients with CKD in our center. This was a hospital-based cross-sectional observational study. Patients with stage 4 and 5 CKD were included in this study. Those receiving calcium supplement, vitamin D or its analogues, and calcimimetic were excluded. Serum/plasma levels of creatinine, albumin, calcium, phosphate, total alkaline phosphatase (TAP), intact parathormone (iPTH), and 25-OH vitaminD (25-vitD) were measured. Radiological survey of bones was carried out in all cases, and echocardiography done in selected patients. Statistical analysis was done using Sigmaplot 10.0 software. A total of 150 patients (114 males, 36 females) were included in this study. Mean age was 45.67±16.96 years. CKD stage 4 and 5D were found in 26% (n=39) and 74% (n=111) of study population, respectively. The most common underlying native kidney diseases in patients of CKD 4 and 5D were diabetic nephropathy (41.03%) and CGN (41.44%), respectively. Median (first quartile, third quartile) values for serum levels of corrected calcium (cCa), phosphate, cCaXPO4 product, TAP, plasma iPTH, and 25-vitD in stage 4 CKD were 8.36 (7.79, 8.91) mg/dL, 4.9 (3.92, 6.4) mg/dL, 41.11 (34.01, 53.81) mg(2)/dL(2), 97 (76.5, 184.25) IU/L, 231 (124.5, 430.75) pg/mL, and 12 (6.98, 23.55) ng/mL, respectively; and in stage 5D CKD were 8.36 (7.66, 8.95) mg/dL, 5.7 (4.23, 6.95) mg/dL, 46.5 (37.16, 54.47) mg(2)/dL(2), 180 (114.5, 276.25) IU/L, 288 (169.75, 625.0) pg/mL, and 18.4 (10.0, 26.4) ng/mL, respectively. Prevalence of hypocalcemia (56.41% vs. 54.95%), hyperphosphatemia (64.10% vs. 70.27%), and hyperparathyroidism (84.62% vs. 88.29%) was not different between patients with CKD 4 and 5D. However, iPTH level outside the target range and increased TAP level were significantly (P<0.001) more common in CKD stage 5D. Multiple logistic regression analysis for hyperparathyroidism revealed significant inverse correlation with cCa in CKD 5D. There were no significant differences in vitamin D status and prevalence of valvular calcification between CKD stage 4 and 5D. X-ray revealed renal osteodystrophy in 8 (5.33%) patients, while it was normal in 118 (78.67%) patients. Secondary hyperparathyroidism, hyperphosphatemia, hypocalcemia, increased TAP, and 25-OH vitamin D deficiency and insufficiency were quite common in CKD 4 and 5 patients. The commonest type of MBD in CKD 4 and 5D was secondary hyperparathyroidism.
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Affiliation(s)
- B. Ghosh
- Department of Nephrology, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - T. Brojen
- Department of Nephrology, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - S. Banerjee
- Department of Internal Medicine, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - N. Singh
- Department of Clinical Pathology, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - S. Singh
- Department of Nephrology, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - O. P. Sharma
- Department of Radiodiagnosis, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India
| | - J. Prakash
- Department of Nephrology, Institute of Medical Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, India
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Sinha A, Krishnan V, Sethi T, Roy S, Ghosh B, Lodha R, Kabra S, Agrawal A. Metabolomic signatures in nuclear magnetic resonance spectra of exhaled breath condensate identify asthma. Eur Respir J 2012; 39:500-2. [PMID: 22298617 DOI: 10.1183/09031936.00047711] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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McColgan P, Evans J, Breen DP, Mason SL, Ghosh B, Rittman T, Rowe J, Nestor P, Barker RA, Williams-Gray CH. 1154 The utility of the Addenbrooke's Cognitive Examination-Revised (ACE-R) in Parkinson's disease. J Neurol Neurosurg Psychiatry 2012. [DOI: 10.1136/jnnp-2011-301993.3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Ghosh B, Hodges JR, Rowe JB. 112 Is cognition stable in progressive supranuclear palsy after diagnosis, or are we testing the wrong thing? J Neurol Neurosurg Psychiatry 2012. [DOI: 10.1136/jnnp-2011-301993.154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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44
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Rai AK, Thakur CP, Velpandian T, Sharma SK, Ghosh B, Mitra DK. High concentration of adenosine in human visceral leishmaniasis despite increased ADA and decreased CD73. Parasite Immunol 2012; 33:632-6. [PMID: 21729107 DOI: 10.1111/j.1365-3024.2011.01315.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Absence of an effective Th-1 response has been demonstrated as a major cause for the disease pathology among patients with visceral leishmaniasis (VL). Defining strategies to prevent the development of Th-2 response and/or initiate/activate effective Th-1 response may be of help to reduce the growing incidence of drug unresponsiveness. Adenosine, which is considered as an endogenous anti-inflammatory agent is generated in injured/inflamed tissues by the enzymatic catabolism of adenosine triphosphate (ATP), and it suppresses inflammatory responses of essentially all immune cells. The extracellular adenosine-producing pathway comprises two major enzymes CD39 (ATP → ADP → AMP) and CD73 (AMP → Adenosine). In contrast, the adenosine-degrading pathway contains only one major enzyme adenosine deaminase (ADA). Our study shows high concentration of adenosine in diseased condition, varying expression of enzyme involved in adenosine-producing (CD73↓) and adenosine-degrading (ADA↑) pathways. These are less studied in infections like VL but are very important in terms of endogenous regulation of immune response among patients.
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Affiliation(s)
- A K Rai
- Department of Transplant Immunology & Immunogenetics, All India Institute of Medical Sciences, New Delhi, India
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Prakash J, Singh LKS, Shreeniwas S, Ghosh B, Singh TB. Non-infectious complications of continuous ambulatory peritoneal dialysis and their impact on technique survival. Indian J Nephrol 2011; 21:112-5. [PMID: 21769174 PMCID: PMC3132330 DOI: 10.4103/0971-4065.82125] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Data on non-infectious complications of continuous ambulatory peritoneal dialysis (CAPD) are sparingly reported from different centres of the country. We studied the non-infectious complications in patients of end stage-renal disease (ESRD) undergoing CAPD. Double-cuffed straight catheter was inserted in all patients using the surgical method and CAPD was started on the 15th day of catheter insertion. The nature of non-infectious complications was noted during follow-up in these patients. Forty-five (male 31, female 14) patients with the mean age of 54.5±11.6 years were studied. Diabetic nephropathy was the most common (59.5%) cause of ESRD. Overall, non-infectious complications were noted in 18/45 (40%) cases. Ultrafiltration failure was the most common (15.5%) followed by incisional hernia (6.6%), exit site leak (4.4%), hydrothorax (4.4%), catheter malposition (4.4%), scrotal swelling (2.2%) and hemoperitoneum (2.2%). Patients with ultrafiltration failure were either shifted to hemodialysis or underwent renal transplantation. The remaining (62%) non-infectious complications did not affect the catheter survival and CAPD could be continued. Non-infectious complications occurred in 40% of our CAPD patients and ultrafiltration failure was the most common (15.5%). A majority (62%) of the complications did not affect catheter survival.
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Affiliation(s)
- J Prakash
- Department of Nephrology, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India
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Majumdar S, Roy S, Ghosh B. Design and gamma scintigraphic evaluation of colon specific pectin-EC pellets of secnidazole prepared by powder layering technology. Pharmazie 2011; 66:843-848. [PMID: 22204129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The aim of the present study was to prepare a colon targeted pellet formulation of secnidazole and to evaluate the formulation in vitro and in vivo by a gamma scintigraphy method. Pectin/ethyl cellulose in different ratios and in different coating labels with plasticizer was used to prepare secnidazole pellets by a powder layering technique. The formulations were tagged with 99mTC-DTPA, a tracer in gamma scintigraphy to evaluate its transit behavior in rabbits. Morphology and compatibility were studied using Scanning Electron Microscopy, IR spectroscopy and Differential Scanning Calorimetry were used for the characterization of prepared pellets. The in-vitro study suggested that pectin (59%) esterification and ethyl cellulose 45cps at 20% coating label led to an optimum bacterial enzyme dependent released behavior. The optimized formulation was subjected to an in-vivo transit study. Scintigraphy images clearly indicated that the formulation can delay the drug release prior to the colon. The average time of gastric emptying and colon arrival was 57 min and 6.08 h, respectively. The coated pellets prepared by powder layering technology successfully released drug in the colon indicating that site specificity has been achieved with pectin 59% esterification and ethyl cellulose 45 cps at 1:2 ratio with 20% coating label.
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Affiliation(s)
- S Majumdar
- Calcutta Institute of Pharmaceutical Technology and Allied Health Sciences, Department of Pharmaceutics, Banitabla, Uluberia, Howrah, India.
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Ghosh B, Byrd LM. Placental chorioangioma - an unusual cause of acute polyhydramnios with an isolated rise in maternal serum ALT: a clinical marker of disease and/or risk? J OBSTET GYNAECOL 2011; 31:663-4. [PMID: 21973147 DOI: 10.3109/01443615.2011.603771] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- B Ghosh
- Department of Obstetrics and Gynaecology, St Marys Hospital, Manchester, UK.
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48
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Ghosh B, Chattopadhyay R, Bose G, Jana S, Choudhury K, Chakravarty B. Role of oral nutraceuticals on abnormal testicular spermatozoa and its impact on ICSI outcome in azoospermic men. Fertil Steril 2011. [DOI: 10.1016/j.fertnstert.2011.07.627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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49
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Chakrabarti P, Ghosh B. Cytoarchitectural and surface ultrastructural analysis of the olfactory epithelium of Oreochromis nilotica (Linnaeus). Folia Morphol (Warsz) 2011; 70:143-148. [PMID: 21866523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The olfactory organ of Oreochromis nilotica was studied by means of light and scanning electron microscopes. The oval shaped olfactory apparatus consists of 19-20 lamellae radiating from a central raphe. The receptor epithelium occupies the restricted area of the middle swollen region of the lamellae and is framed with receptor cells (both ciliated and microvillous) and rod cells. The larger part of the lateral surface of the olfactory lamella is covered with non-receptor epithelium, which is made up of stratified epithelial cells and mucous cells. The functional significance of various cells lining the olfactory epithelium of this fish are discussed.
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Affiliation(s)
- P Chakrabarti
- Department of Zoology, Burdwan University, Golapbag, West Bengal, India.
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50
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Abstract
Glaucoma is seen in about 20% of the patients with uveitis. Anterior uveitis may be acute, subacute, or chronic. The mechanisms by which iridocyclitis leads to obstruction of aqueous outflow include acute, usually reversible forms (e.g., accumulation of inflammatory elements in the intertrabecular spaces, edema of the trabecular lamellae, or angle closure due to ciliary body swelling) and chronic forms (e.g., scar formation or membrane overgrowth in the anterior chamber angle). Careful history and follow-up helps distinguish steroid-induced glaucoma from uveitic glaucoma. Treatment of combined iridocyclitis and glaucoma involves steroidal and nonsteroidal antiinflammatory agents and antiglaucoma drugs. However, glaucoma drugs can often have an unpredictable effect on intraocular pressure (IOP) in the setting of uveitis. Surgical intervention is required in case of medical failure. Method of Literature Search: Literature on the Medline database was searched using the PubMed interface.
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Affiliation(s)
- Sonam A Bodh
- Department of Ophthalmology, Guru Nanak Eye Center, Maulana Azad Medical College, New Delhi - 110 001, India
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