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Priyadarshini P, Das S, Alagarasan D, Ganesan R, Varadharajaperumal S, Naik R. Author Correction: Observation of high nonlinearity in Bi doped Bi xIn 35-xSe 65 thin films with annealing. Sci Rep 2024; 14:9611. [PMID: 38671067 PMCID: PMC11053047 DOI: 10.1038/s41598-024-60479-8] [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: 04/28/2024] Open
Affiliation(s)
- P Priyadarshini
- Department of Engineering and Material Physics, ICT-IOC, Bhubaneswar, 751013, India
| | - Subhashree Das
- Department of Engineering and Material Physics, ICT-IOC, Bhubaneswar, 751013, India
| | - D Alagarasan
- Department of Physics, Indian Institute of Science, Bangalore, 560012, India
| | - R Ganesan
- Department of Physics, Indian Institute of Science, Bangalore, 560012, India
| | - S Varadharajaperumal
- Centre for Nano Science and Engineering, Indian Institute of Science, Bangalore, 560012, India
| | - Ramakanta Naik
- Department of Engineering and Material Physics, ICT-IOC, Bhubaneswar, 751013, India.
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Priyadarshini P, Kumar PC, Naik R. Tuning in optoelectronic properties of In/Te bilayer heterostructure upon annealing at different temperatures: surface wettability and photo response study for photonic and solar cell applications. RSC Adv 2024; 14:12897-12910. [PMID: 38650689 PMCID: PMC11033610 DOI: 10.1039/d4ra00807c] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Accepted: 04/16/2024] [Indexed: 04/25/2024] Open
Abstract
The current study depicted the influence of annealing temperature on In/Te bilayer thin film of 350 nm synthesized by thermal evaporation method. The interfacial diffusion of In into Te sites at different annealing temperatures (100 °C, 150 °C, 200 °C, 250 °C) modified the structural as well as the electro-optical response of the films. The structural study showed the appearance of an orthorhombic In4Te3 peak with annealing. The surface texture showed the particle nature with homogeneous distribution with annealing temperatures. The cross-sectional view of the bilayer and annealed film confirmed the formation of In/Te film with a total thickness of 350 nm. Surface mapping images confirm the homogeneous and uniform elemental distribution. The transmission was enhanced with annealing and showed broad transparency over the NIR region, making them suitable for IR device applications. The enhanced optical bandgap with annealing due to induced local structural changes reduced the optical parameters, such as refractive index, dielectric constant, and nonlinear susceptibility. The surface wettability measurements showed an enhanced hydrophobic nature with annealing. The variation of photocurrent with respect to voltage showed an ohmic nature, with enhancement from nA to ∼mA with annealing. Such alteration opened new ways to be used in solar cells, photodetectors, and photonic device applications.
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Affiliation(s)
- P Priyadarshini
- Department of Engineering and Materials Physics, ICT-IOC Bhubaneswar 751013 India
| | - Prabhukrupa C Kumar
- Department of Engineering and Materials Physics, ICT-IOC Bhubaneswar 751013 India
| | - Ramakanta Naik
- Department of Engineering and Materials Physics, ICT-IOC Bhubaneswar 751013 India
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Bagaria DK, Gupta S, Pandey S, Choudhary N, Priyadarshini P, Kumar A, Alam J, Mishra B, Sagar S, Kumar S, Gupta A. Abdominal wall reconstruction (AWR) for post-trauma laparotomy ventral hernia and follow-up assessment of functional quality of life (QOL): experience of a level-1 trauma centre in India. Hernia 2024:10.1007/s10029-024-02978-1. [PMID: 38388814 DOI: 10.1007/s10029-024-02978-1] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Accepted: 01/25/2024] [Indexed: 02/24/2024]
Abstract
PURPOSE The aim of this study was to examine the postoperative outcomes and follow-up QOL of patients after AWR at a level-1 trauma centre in India. METHODS The study cohort included AWR patients treated between January 2011 and July 2022. The Activities Assessment Scale (AAS) was used to measure QOL, and the Ventral Hernia Recurrence Inventory (VHRI) was used to determine the occurrence of recurrence. In patients suspected of having recurrence, thorough clinical examination and relevant imaging were performed to confirm or rule out recurrence. RESULTS Out of 89 patients, 35 patients whose complete perioperative and follow-up data were available were enrolled. The mean age of the patients was 28 (SD, 9) years. The mean defect size was 14. 9 (SD, 7) cm. The mean time from laparotomy to AWR surgery was 21 months. During the postoperative course, 37% of patients developed complications, such as SSI and seroma. The mean follow-up time was 53 (SD, 43) months. Upon comparing procedures involving the mesh placed in the sublay position with procedures involving the mesh placed in other positions, no statistically significant difference in the recurrence rate (one in each group, p = 0.99), surgical complication rate (33% v/s 66%, p = 0.6), or mean AAS QOL score (94.7 v/s 98, p = 0.4) was observed. The specificity of the VHRI for diagnosing recurrence was 79%. CONCLUSION Overall, the recurrence rate was low in these patients despite the presence of large hernia defects. Long-term QOL was not affected by the specific procedure used. Timely planning and execution are more important than the specific repair approach for post-trauma laparotomy ventral hernia.
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Affiliation(s)
- D K Bagaria
- Division of Trauma Surgery and Critical Care, Jai Prakash Narayan Apex Trauma Centre, Jai Prakash Narayan Apex Trauma Centre, All India Institute of Medical Sciences, New Delhi, India
| | - S Gupta
- Division of Trauma Surgery and Critical Care, Jai Prakash Narayan Apex Trauma Centre, Jai Prakash Narayan Apex Trauma Centre, All India Institute of Medical Sciences, New Delhi, India
| | - S Pandey
- Department of Biostatistics, All India Institute of Medical Sciences, New Delhi, India
| | - N Choudhary
- Division of Trauma Surgery and Critical Care, Jai Prakash Narayan Apex Trauma Centre, Jai Prakash Narayan Apex Trauma Centre, All India Institute of Medical Sciences, New Delhi, India.
| | - P Priyadarshini
- Division of Trauma Surgery and Critical Care, Jai Prakash Narayan Apex Trauma Centre, Jai Prakash Narayan Apex Trauma Centre, All India Institute of Medical Sciences, New Delhi, India
| | - A Kumar
- Division of Trauma Surgery and Critical Care, Jai Prakash Narayan Apex Trauma Centre, Jai Prakash Narayan Apex Trauma Centre, All India Institute of Medical Sciences, New Delhi, India
| | - J Alam
- Division of Trauma Surgery and Critical Care, Jai Prakash Narayan Apex Trauma Centre, Jai Prakash Narayan Apex Trauma Centre, All India Institute of Medical Sciences, New Delhi, India
| | - B Mishra
- Division of Trauma Surgery and Critical Care, Jai Prakash Narayan Apex Trauma Centre, Jai Prakash Narayan Apex Trauma Centre, All India Institute of Medical Sciences, New Delhi, India
| | - S Sagar
- Division of Trauma Surgery and Critical Care, Jai Prakash Narayan Apex Trauma Centre, Jai Prakash Narayan Apex Trauma Centre, All India Institute of Medical Sciences, New Delhi, India
| | - S Kumar
- Division of Trauma Surgery and Critical Care, Jai Prakash Narayan Apex Trauma Centre, Jai Prakash Narayan Apex Trauma Centre, All India Institute of Medical Sciences, New Delhi, India
| | - A Gupta
- Division of Trauma Surgery and Critical Care, Jai Prakash Narayan Apex Trauma Centre, Jai Prakash Narayan Apex Trauma Centre, All India Institute of Medical Sciences, New Delhi, India
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Kalwan G, Priyadarshini P, Kumar K, Yadava YK, Yadav S, Kohli D, Gill SS, Gaikwad K, Hegde V, Jain PK. Genome wide identification and characterization of the amino acid transporter (AAT) genes regulating seed protein content in chickpea (Cicer arietinum L.). Int J Biol Macromol 2023; 252:126324. [PMID: 37591427 DOI: 10.1016/j.ijbiomac.2023.126324] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Revised: 06/29/2023] [Accepted: 08/09/2023] [Indexed: 08/19/2023]
Abstract
Amino acid transporters (AATs), besides, being a crucial component for nutrient partitioning system are also vital for growth and development of the plants and stress resilience. In order to understand the role of AAT genes in seed quality proteins, a comprehensive analysis of AAT gene family was carried out in chickpea leading to identification of 109 AAT genes, representing 10 subfamilies with random distribution across the chickpea genome. Several important stress responsive cis-regulatory elements like Myb, ABRE, ERE were detected in the promoter region of these CaAAT genes. Most of the genes belonging to the same sub-families shared the intron-exon distribution pattern owing to their conserved nature. Random distribution of these CaAAT genes was observed on plasma membrane, vacuolar membrane, Endoplasmic reticulum and Golgi membranes, which may be associated to distinct biochemical pathways. In total 92 out 109 CaAAT genes arise as result of duplication, among which segmental duplication was more prominent over tandem duplication. As expected, the phylogenetic tree was divided into 2 major clades, and further sub-divided into different sub-families. Among the 109 CaAAT genes, 25 were found to be interacting with 25 miRNAs, many miRNAs like miR156, miR159 and miR164 were interacting only with single AAT genes. Tissues specific expression pattern of many CaAAT genes was observed like CaAAP7 and CaAVT18 in nodules, CaAAP17, CaAVT5 and CaCAT9 in vegetative tissues while CaCAT10 and CaAAP23 in seed related tissues as per the expression analysis. Mature seed transcriptome data revealed that genotypes having high protein content (ICC 8397, ICC 13461) showed low CaAATs expression as compared to the genotypes having low protein content (FG 212, BG 3054). Amino acid profiling of these genotypes revealed a significant difference in amount of essential and non-essential amino acids, probably due to differential expression of CaAATs. Thus, the present study provides insights into the biological role of AAT genes in chickpea, which will facilitate their functional characterization and role in various developmental stages, stress responses and involvement in nutritional quality enhancement.
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Affiliation(s)
- Gopal Kalwan
- ICAR - National Institute for Plant Biotechnology, New Delhi 110012, India; PG School, ICAR-Indian Agricultural Research Institute, New Delhi 110012, India
| | - Parichita Priyadarshini
- ICAR - National Institute for Plant Biotechnology, New Delhi 110012, India; PG School, ICAR-Indian Agricultural Research Institute, New Delhi 110012, India; ICAR-Indian Grassland and Fodder Research Institute, Jhansi, Uttar Pradesh 284003, India
| | - Kuldeep Kumar
- ICAR - National Institute for Plant Biotechnology, New Delhi 110012, India; PG School, ICAR-Indian Agricultural Research Institute, New Delhi 110012, India; ICAR - Indian Institute of Pulses Research, Kanpur, Uttar Pradesh 208024, India
| | | | - Sheel Yadav
- ICAR - National Institute for Plant Biotechnology, New Delhi 110012, India; PG School, ICAR-Indian Agricultural Research Institute, New Delhi 110012, India
| | - Deshika Kohli
- ICAR - National Institute for Plant Biotechnology, New Delhi 110012, India
| | - Sarvajeet Singh Gill
- Stress Physiology & Molecular Biology Lab, Centre for Biotechnology, Maharshi Dayanand University, Rohtak 124 001, Haryana, India
| | - Kishor Gaikwad
- ICAR - National Institute for Plant Biotechnology, New Delhi 110012, India
| | - Venkatraman Hegde
- Division of Genetics, ICAR-Indian Agricultural Research Institute, New Delhi 110012, India
| | - Pradeep Kumar Jain
- ICAR - National Institute for Plant Biotechnology, New Delhi 110012, India.
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Sahoo D, Priyadarshini P, Dandela R, Alagarasan D, Ganesan R, Varadharajaperumal S, Naik R. Correction: In situ laser irradiation: the kinetics of the changes in the nonlinear/linear optical parameters of As 50Se 40Sb 10 thin films for photonic applications. RSC Adv 2023; 13:29342. [PMID: 37818269 PMCID: PMC10560874 DOI: 10.1039/d3ra90098c] [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] [Received: 10/02/2023] [Accepted: 10/02/2023] [Indexed: 10/12/2023] Open
Abstract
[This corrects the article DOI: 10.1039/D1RA02368C.].
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Affiliation(s)
- D Sahoo
- Department of Engineering and Material Physics, ICT-IOC Bhubaneswar 751013 India
| | - P Priyadarshini
- Department of Engineering and Material Physics, ICT-IOC Bhubaneswar 751013 India
| | - R Dandela
- Department of Industrial & Engineering Chemistry, ICT-IOC Bhubaneswar 751013 India
| | - D Alagarasan
- Department of Physics, Indian Institute of Science Bangalore 560012 India
| | - R Ganesan
- Department of Physics, Indian Institute of Science Bangalore 560012 India
| | - S Varadharajaperumal
- Centre for Nano Science and Engineering, Indian Institute of Science Bangalore 560012 India
| | - R Naik
- Department of Engineering and Material Physics, ICT-IOC Bhubaneswar 751013 India
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Giri S, Priyadarshini P, Alagarasan D, Ganesan R, Naik R. Annealing-induced phase transformation in In 10Se 70Te 20 thin films and its structural, optical and morphological changes for optoelectronic applications. RSC Adv 2023; 13:24955-24972. [PMID: 37614788 PMCID: PMC10442775 DOI: 10.1039/d3ra03731b] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Accepted: 08/09/2023] [Indexed: 08/25/2023] Open
Abstract
In2Se3 and In2Te3 have great importance in various device fabrications. The present report is based on the annealing-induced phase formation of both In2Se3 and In2Te3 from In10Se70Te20 thin films at different annealing temperatures as found from the XRD analysis and well supported by the Raman study. The average crystallite size increased with a decrease in the dislocation density. The surface morphology changed with annealing and increased in particle size as noticed from the FESEM images. The uniform distribution and presence of constituent elements in the film were verified using EDX data. The increase in transmittance is accompanied by a decrease in extinction coefficient, optical density and increase in skin depth with annealing. The increase in optical bandgap from 0.418 eV to 0.645 eV upon annealing at 250 °C is associated with a decrease in disorder. The steepness parameter increased and the Se-p value decreased with annealing. The refractive index decreased with an increase in oscillator energy and decrease in dispersion energy. The quality factor, dielectric loss, optical conductivity and electrical susceptibility decreased. The optical electronegativity and plasma frequency increased with annealing. There is a significant change in the non-linear susceptibility and non-linear refractive index with annealing. The observed changes in the film structure and optical behaviour are due to the annealing-induced phase formation from the In10Se70Te20 host matrix upon annealing. Such materials are suitable for optoelectronic and phase change devices.
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Affiliation(s)
- Sasmita Giri
- Department of Engineering and Material Physics, ICT-IOC Bhubaneswar 751013 India
| | - P Priyadarshini
- Department of Engineering and Material Physics, ICT-IOC Bhubaneswar 751013 India
| | - D Alagarasan
- Nitte Meenakshi Institute of Technology Yelahanka Bengaluru 560064 India
- Department of Physics, Indian Institute of Science Bangalore 560012 India
| | - R Ganesan
- Department of Physics, Indian Institute of Science Bangalore 560012 India
| | - R Naik
- Department of Engineering and Material Physics, ICT-IOC Bhubaneswar 751013 India
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Priyadarshini P, Sarathi S, Hemavathy V. A Study to Assess the Knowledge Regarding Self-Breast Examination on Prevention of Breast Cancer Among Women Attending OPD in Sree Balaji Medical and College And Hospital. CM 2023. [DOI: 10.18137/cardiometry.2023.26.663670] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023] Open
Abstract
Self-examination of the breasts is less expensive than mammography. Breast cancer can be discovered sooner, and women's survival rates can be raised. Rural residents have limited access to medical treatment and have a poorer educational position. As a result, it is critical that they be educated about breast cancer prevention and early diagnosis by systematic breast self-examination. Breast cancer risk begins to climb in a woman's early thirties and reaches an all-time high by the time she reaches her sixth decade. Because women between the ages of 30 and 60 are at high risk, an educational programme for them would be quite useful. Because the perceived threat of breast cancer should inspire children to practise breast self-examination on a regular basis, improved knowledge about breast cancer and competence to do breast self-examination at this age would be useful. According to a study, the five-year survival rate of breast cancer patients is 75 percent, and it is suggested that 50 percent of all breast cancer patients worldwide could have their lives extended by increasing public awareness through early detection and effective treatment at the community level.
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Priyadarshini P, Sarath S, Hemavathy V. Breast cancer awareness package on knowledge, attitude and practice towards breast self examination to prevent breast cancer among women in adopted communities – a pilot analysis. CM 2022. [DOI: 10.18137/cardiometry.2022.22.471483] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Breast health is extremely important for all women. However, the breast is another region of the human body that is susceptible to cancer. Breast cancer is becoming increasingly common these days, and it is now one of the leading causes of mortality globally. According to the World Health Organization, breast cancer is the most common disease among women worldwide, claiming the lives of hundreds of thousands of women each year and impacting nations at all stages of development. In fact, it is the most common cancer in women, with a significant incidence observed among those aged 30 to 50. The goal of the World Health Organization’s Worldwide Breast Cancer Initiative (GBCI) is to reduce global breast cancer mortality by 2.5 percent each year; As a result, 2.5 million breast cancer deaths will be avoided globally between 2020 and 2040. To achieve these goals, three pillars must be in place: health endorsement for early detection, suitable identification at the right time, and comprehensive breast cancer management. Because of advances in early detection and care, the incidence of women dying of breast cancer has decreased by 41% from 1989 to 2018. During that time, more than 403,000 breast cancer deaths were prevented.
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Amita K, Pournami SV, Rashmi R, Kusuma KN, Priyadarshini P. Recurrent Cylindroma of the Scalp: A Cytomorphological Evaluation at Fine Needle Aspiration Cytology. Cureus 2022; 14:e25152. [PMID: 35747048 PMCID: PMC9206710 DOI: 10.7759/cureus.25152] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/19/2022] [Indexed: 11/21/2022] Open
Abstract
Specific diagnosis of adnexal tumours at fine needle aspiration cytology (FNAC) is challenging. In a recurrent scalp tumour, a startling array of lesions ranging from benign to malignant tumours fall into differential diagnosis. Accurate preoperative diagnosis is essential for planning management and to improve clinical outcome. Herein, we report a rare case of recurrent cylindroma of the scalp in a 62-year-old male patient. Cytology smears showed tight clusters of round to oval basaloid cells, few clusters with peripheral palisading. Basement membrane material was seen surrounding the cell clusters. FNAC diagnosis of a benign adnexal tumour, possibly cylindroma, was made. The diagnosis was confirmed at histopathology. We emphasize the decisive role of FNAC in arriving at an accurate diagnosis of a recurrent scalp tumour.
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Priyadarshini P, Das S, Alagarasan D, Ganesan R, Varadharajaperumal S, Sahoo S, Naik R. The impact of fluence dependent proton ion irradiation on the structural and optical properties of Bi5In30Se65 thin films for nonlinear optical devices. RSC Adv 2022; 12:5012-5026. [PMID: 35425520 PMCID: PMC8981220 DOI: 10.1039/d2ra00097k] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Accepted: 01/25/2022] [Indexed: 01/03/2023] Open
Abstract
The influence of 30 keV proton ion irradiation on the surface morphology, surface topography and optical properties of Bi5In30Se65 thin films.
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Affiliation(s)
- P. Priyadarshini
- Department of Engineering and Material Physics, ICT-IOC, Bhubaneswar, 751013, India
| | - S. Das
- Department of Engineering and Material Physics, ICT-IOC, Bhubaneswar, 751013, India
| | - D. Alagarasan
- Department of Physics, Indian Institute of Science, Bangalore, 560012, India
| | - R. Ganesan
- Department of Physics, Indian Institute of Science, Bangalore, 560012, India
| | - S. Varadharajaperumal
- Centre for Nano Science and Engineering, Indian Institute of Science, Bangalore-560012, India
| | - S. Sahoo
- Laboratory for Low Dimensional Materials, Institute of Physics, Bhubaneswar 751005, India
- Homi Bhabha Training School Complex, Anushakti Nagar, Mumbai 400094, India
| | - R. Naik
- Department of Engineering and Material Physics, ICT-IOC, Bhubaneswar, 751013, India
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Priyadarshini P, Das S, Alagarasan D, Ganesan R, Varadharajaperumal S, Naik R. Observation of high nonlinearity in Bi doped Bi xIn 35-xSe 65 thin films with annealing. Sci Rep 2021; 11:21518. [PMID: 34728771 PMCID: PMC8563738 DOI: 10.1038/s41598-021-01134-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 10/20/2021] [Indexed: 11/09/2022] Open
Abstract
The present work demonstrates the impact of thermal annealing on the structural, linear, and non-linear optical characteristics of thermally evaporated BixIn35-xSe65 (x = 0, 5, 10, 15 at%) thin films. The prominent crystalline phases have been developed for all annealed films at 450 °C whereas the films remain amorphous at 350 °C annealing. The XRD and Raman analysis showed the phase transformation of Bi-doped films and new Bi2Se3 phases developed upon annealing at 450 °C. The phase transformation induced change increased the linear and nonlinear properties with great extent as seen from the UV-visible optical studies. The direct and indirect optical bandgaps decreased with annealing temperature and also with Bi % content due to the formation of surface dangling bonds near the crystallite sites. The static linear refractive index and high-frequency dielectric constants were increased with annealing. The third-order non-linear susceptibility and non-linear refractive index were found to be greatly influenced by annealing temperature and increased with bismuth content. The FESEM micrographs also showed the phase transformation and EDX analysis showed the composition. The results obtained from the materials showed the potentiality to be useful for photovoltaic and optoelectronic applications.
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Affiliation(s)
- P Priyadarshini
- Department of Engineering and Material Physics, ICT-IOC, Bhubaneswar, 751013, India
| | - Subhashree Das
- Department of Engineering and Material Physics, ICT-IOC, Bhubaneswar, 751013, India
| | - D Alagarasan
- Department of Physics, Indian Institute of Science, Bangalore, 560012, India
| | - R Ganesan
- Department of Physics, Indian Institute of Science, Bangalore, 560012, India
| | - S Varadharajaperumal
- Centre for Nano Science and Engineering, Indian Institute of Science, Bangalore, 560012, India
| | - Ramakanta Naik
- Department of Engineering and Material Physics, ICT-IOC, Bhubaneswar, 751013, India.
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Priyadarshini P, Choudhury S, Tilgam J, Bharati A, Sreeshma N. Nitrogen fixing cereal: A rising hero towards meeting food security. Plant Physiol Biochem 2021; 167:912-920. [PMID: 34547550 DOI: 10.1016/j.plaphy.2021.09.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 03/26/2021] [Revised: 09/05/2021] [Accepted: 09/08/2021] [Indexed: 06/13/2023]
Abstract
Nitrogen serves as one of the primary components of major biomolecules and thus extends a significant contribution to crop growth and yield. But the inability of plants to utilize freely available atmospheric N2 makes the whole agricultural system dependent on chemical fertilizers, which incur significant input cost to supplement required quantities of nitrogen to crops. Only bacteria and archaea have been gifted with the power of drawing free N2 from air to convert them into NH3, which is one of the two utilizable forms of nitrogen taken up by plants. Legumes, the only family of crops, can engage themselves in symbiotic nitrogen fixation where they establish a mutualistic relationship with nitrogen-fixing bacteria and in turn, can waive off the necessity of adding nitrogen fertilizers. Sincere effort, therefore, has been undertaken to incorporate this capability of nitrogen-fixation into non-legume crops, especially cereals which make up a vital portion in the food basket. Biotechnological interventions have also played important role in providing nitrogen fixing trait to non-legumes. This review takes up an effort to look into and accumulate all the important updates to date regarding nitrogen-fixing non-legumes with a special focus on cereals, which is one of the most important future goals in the field of science in the present era.
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Affiliation(s)
- Parichita Priyadarshini
- ICAR-Crop Improvement Division, Indian Grassland and Fodder Research Institute, Jhansi, U.P., 284003, India
| | - Sharani Choudhury
- ICAR - National Institute for Plant Biotechnology, Indian Agricultural Research Institute, New Delhi, 110012, India
| | - Jyotsana Tilgam
- ICAR- National Bureau of Agriculturally Important Microorganisms, Maunath Bhanjan, U.P., 274103, India.
| | - Alka Bharati
- ICAR-Central Agroforestry Research Institute, Jhansi, U.P., 284003, India
| | - N Sreeshma
- ICAR - National Institute for Plant Biotechnology, Indian Agricultural Research Institute, New Delhi, 110012, India
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Sahoo D, Priyadarshini P, Dandela R, Alagarasan D, Ganesan R, Varadharajaperumal S, Naik R. In situ laser irradiation: the kinetics of the changes in the nonlinear/linear optical parameters of As 50Se 40Sb 10 thin films for photonic applications. RSC Adv 2021; 11:16015-16025. [PMID: 35481185 PMCID: PMC9030252 DOI: 10.1039/d1ra02368c] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 04/25/2021] [Indexed: 11/21/2022] Open
Abstract
The photosensitivity of amorphous chalcogenide thin films brings out light-induced changes in the nonlinear and linear optical parameters upon sub-bandgap and bandgap laser irradiation. The present work reports the in situ laser irradiated changes in the optical properties of As50Se40Sb10 thin films. The thermally evaporated film showed an exponential decrease in optical bandgap and increase in Urbach energy. The decay rate of the bandgap was 6.24 min and growth rate of Urbach energy was 6.67 min respectively. The dynamics of photo-induced changes were observed from the changes in linear refractive index and its dependent parameters such as 3rd order nonlinear susceptibility, nonlinear refractive index, dispersion and dielectric parameters. The conversion of heteropolar to homopolar bonds induced the photodarkening mechanism that changed the dispersion parameters. The decrease in E d and E o reduced the oscillator strength along with the zero-frequency dielectric constant. The optical and electrical conductivity changed significantly with time. The changes were saturated with time which brings stability in the film properties that is useful for various optical applications. However, no structural and compositional changes upon laser irradiation were noticed from the X-ray diffraction and EDX studies respectively. The surface homogeneity was checked from the FESEM picture.
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Affiliation(s)
- D Sahoo
- Department of Engineering and Material Physics, ICT-IOC Bhubaneswar 751013 India
| | - P Priyadarshini
- Department of Engineering and Material Physics, ICT-IOC Bhubaneswar 751013 India
| | - R Dandela
- Department of Industrial & Engineering Chemistry, ICT-IOC Bhubaneswar 751013 India
| | - D Alagarasan
- Department of Physics, Indian Institute of Science Bangalore 560012 India
| | - R Ganesan
- Department of Physics, Indian Institute of Science Bangalore 560012 India
| | - S Varadharajaperumal
- Centre for Nano Science and Engineering, Indian Institute of Science Bangalore-560012 India
| | - R Naik
- Department of Engineering and Material Physics, ICT-IOC Bhubaneswar 751013 India
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Majhy B, Priyadarshini P, Sen AK. Effect of surface energy and roughness on cell adhesion and growth - facile surface modification for enhanced cell culture. RSC Adv 2021; 11:15467-15476. [PMID: 35424027 PMCID: PMC8698786 DOI: 10.1039/d1ra02402g] [Citation(s) in RCA: 71] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Accepted: 04/21/2021] [Indexed: 01/17/2023] Open
Abstract
In vitro, cellular processing on polymeric surfaces is fundamental to the development of biosensors, scaffolds for tissue engineering and transplantation. However, the effect of surface energy and roughness on the cell-surface interaction remains inconclusive, indicating a lack of complete understanding of the phenomenon. Here, we study the effect of surface energy (E s) and roughness ratio (r) of a polydimethylsiloxane (PDMS) substrate on cell attachment, growth, and proliferation. We considered two different cell lines, HeLa and MDA MB 231, and rough PDMS surfaces of different surface energy in the range E s = 21-100 mJ m-2, corresponding to WCA 161°-1°, and roughness ratio in the range r = 1.05-3, corresponding to roughness 5-150 nm. We find that the cell attachment process proceeds through three different stages marked by an increase in the number of attached cells with time (stage I), flattening of cells (stage II), and elongation of cells (III) on the surface. Our study reveals that moderate surface energy (E s ≈ 70 mJ m-2) and intermediate roughness ratio (r ≈ 2) constitute the most favourable conditions for efficient cell adhesion, growth, and proliferation. A theoretical model based on the minimization of the total free energy of the cell-substrate system is presented and is used to predict the spread length of cells that compares well with the corresponding experimental data within 10%. The performance and reusability of the rough PDMS surface of moderate energy and roughness prepared via facile surface modification are compared with standard T-25 cell culture plates for cell growth and proliferation, which shows that the proposed surface is an attractive choice for efficient cell culture.
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Affiliation(s)
- B Majhy
- Fluid Systems Laboratory, Department of Mechanical Engineering, Indian Institute of Technology Madras Chennai India
| | - P Priyadarshini
- Fluid Systems Laboratory, Department of Mechanical Engineering, Indian Institute of Technology Madras Chennai India
| | - A K Sen
- Fluid Systems Laboratory, Department of Mechanical Engineering, Indian Institute of Technology Madras Chennai India
- Micro Nano Bio Fluidics Group, Indian Institute of Technology Madras Chennai India
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Chandran CS, Narayanan V, Chandran S, Priyadarshini P, Karthik R. Feasibility of Endoscopically Assisted Repair of Zygomatico-Maxillary Complex Orbital Fractures: Case Series. J Maxillofac Oral Surg 2020; 19:425-430. [PMID: 32801539 DOI: 10.1007/s12663-019-01289-8] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Accepted: 09/13/2019] [Indexed: 11/26/2022] Open
Abstract
Aim To assess the feasibility and the outcome of endoscopically assisted repair of zygomatico-maxillary complex orbital fractures in a tertiary care hospital. Materials and methods A descriptive study was carried out over a period of 2 years (01. 11. 2014-31. 10. 2016). 0°-4 mm endoscopes were used for intra-operative endoscopic exploration. Regular armamentarium for management of maxillofacial trauma along with standard plating systems was used. Commercially available medical grade titanium meshes were utilised for orbital floor reconstruction. Results Fifty-seven of hundred and twelve surgically managed zygomatico-maxillary complex fractures required orbital exploration. Twenty-one of these had reconstruction of the orbital floor. Endoscopically assisted exploration was performed in 10 of the 21; trans-nasally in three cases, the Caldwell-Luc approach was used in three cases, and in another three, the existing fracture in the anterior wall of the maxilla was utilised. In addition, an endoscopic trans-nasal-sphenoidal approach was opted for to access the orbital apex to manage fractured bone fragments that were impinging on the optic nerve in one of the patients. Conclusion Endoscopes serve as the primary tool in minimally invasive procedures. They are yet to evolve as a major role player in the maxillofacial arena. The authors conclude that endoscopes are truly beneficial as an adjunct to existing techniques. They hold much promise for the future.
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Affiliation(s)
- Catherine S Chandran
- Department of Oral and Maxillofacial Surgery, SRM Kattankulathur Dental College and Hospital, SRM University, Potheri, Kancheepuram Dt., Tamil Nadu 603 203 India
- C/o Gen. Surgery Unit III, CMC, Vellore, Tamil Nadu 632004 India
| | - Vivek Narayanan
- Department of Oral and Maxillofacial Surgery, SRM Kattankulathur Dental College and Hospital, SRM University, Potheri, Kancheepuram Dt., Tamil Nadu 603 203 India
| | - Saravanan Chandran
- Department of Oral and Maxillofacial Surgery, SRM Kattankulathur Dental College and Hospital, SRM University, Potheri, Kancheepuram Dt., Tamil Nadu 603 203 India
| | - P Priyadarshini
- Department of Oral and Maxillofacial Surgery, SRM Kattankulathur Dental College and Hospital, SRM University, Potheri, Kancheepuram Dt., Tamil Nadu 603 203 India
| | - R Karthik
- Department of Oral and Maxillofacial Surgery, SRM Kattankulathur Dental College and Hospital, SRM University, Potheri, Kancheepuram Dt., Tamil Nadu 603 203 India
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Sahoo D, Priyadarshini P, Aparimita A, Alagarasan D, Ganesan R, Varadharajaperumal S, Naik R. Role of annealing temperature on optimizing the linear and nonlinear optical properties of As 40Se 50Ge 10 films. RSC Adv 2020; 10:26675-26685. [PMID: 35515774 PMCID: PMC9055387 DOI: 10.1039/d0ra04763e] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Accepted: 07/09/2020] [Indexed: 11/21/2022] Open
Abstract
The present work shows the effect of annealing conditions on the linear and nonlinear optical properties of two-year-old thermally evaporated 800 nm As40Se50Ge10 thin films. The aging effect in this film is clearly noticeable as compared with the old observation. The two-year-old films were annealed at different temperatures like 373, 413, 453 and 493 K for 1 h. The optical parameters were calculated from the optical transmittance and reflectance spectra measured at normal incidence of light by spectrometer in the 500-1000 nm range. The linear refractive index (n) and extinction coefficient (k) were decreased with annealing temperature. The observation reveals the increase in optical band gap with increase in annealing temperature while the width of the tail in the gap has an opposite behaviour. The oscillator energy, dispersion energy, dielectric constant, the loss factor, and optical conductivity were discussed in detail. The nonlinear refractive index and optical susceptibility were calculated by using Miller's formula which decreased with annealing temperature. The changes in both linear and nonlinear optical parameters with annealing temperature showed that annealing temperature can be considered as a useful factor for controlling the optical properties of As40Se50Ge10 chalcogenide films which could be the candidate for numerous photonic applications. The structural study was done by X-ray diffraction and Raman spectroscopy.
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Affiliation(s)
- D Sahoo
- Department of Engineering and Material Physics, ICT-IOC Bhubaneswar 751013 India
| | - P Priyadarshini
- Department of Engineering and Material Physics, ICT-IOC Bhubaneswar 751013 India
| | - A Aparimita
- Department of Physics, Utkal University Bhubaneswar 751004 India
| | - D Alagarasan
- Department of Physics, Indian Institute of Science Bangalore 560012 India
| | - R Ganesan
- Department of Physics, Indian Institute of Science Bangalore 560012 India
| | - S Varadharajaperumal
- Centre for Nano Science and Engineering, Indian Institute of Science Bangalore-560012 India
| | - R Naik
- Department of Engineering and Material Physics, ICT-IOC Bhubaneswar 751013 India
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Priyadarshini P, Tiwari K, Das A, Kumar D, Mishra MN, Desikan P, Nath G. Evaluation of highly conserved hsp65-specific nested PCR primers for diagnosing Mycobacterium tuberculosis. Int J Tuberc Lung Dis 2018; 21:214-217. [PMID: 28234087 DOI: 10.5588/ijtld.16.0343] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
OBJECTIVE To evaluate the sensitivity and specificity of a new nested set of primers designed for the detection of Mycobacterium tuberculosis complex targeting a highly conserved heat shock protein gene (hsp65). DESIGN The nested primers were designed using multiple sequence alignment assuming the nucleotide sequence of the M. tuberculosis H37Rv hsp65 genome as base. Multidrug-resistant Mycobacterium species along with other non-mycobacterial and fungal species were included to evaluate the specificity of M. tuberculosis hsp65 gene-specific primers. RESULTS The sensitivity of the primers was determined using serial 10-fold dilutions, and was 100% as shown by the bands in the case of M. tuberculosis complex. None of the other non M. tuberculosis complex bacterial and fungal species yielded any band on nested polymerase chain reaction (PCR). The first round of amplification could amplify 0.3 ng of the template DNA, while nested PCR could detect 0.3 pg. CONCLUSION The present hsp65-specific primers have been observed to be sensitive, specific and cost-effective, without requiring interpretation of biochemical tests, real-time PCR, sequencing or high-performance liquid chromatography. These primer sets do not have the drawbacks associated with those protocols that target insertion sequence 6110, 16S rDNA, rpoB, recA and MPT 64.
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Affiliation(s)
- P Priyadarshini
- Department of Microbiology, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India
| | - K Tiwari
- Department of Microbiology, Bhopal Memorial Hospital and Research Centre, Bhopal, India
| | - A Das
- Department of Microbiology, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India
| | - D Kumar
- Department of Microbiology, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India
| | - M N Mishra
- Department of Microbiology, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India
| | - P Desikan
- Department of Microbiology, Bhopal Memorial Hospital and Research Centre, Bhopal, India
| | - G Nath
- Department of Microbiology, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India
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Shetty J, Priyadarshini P, Pandey D, Manjunath AP. Modified Goff Symptom Index: Simple triage tool for ovarian malignancy. Sultan Qaboos Univ Med J 2015; 15:e370-5. [PMID: 26355559 DOI: 10.18295/squmj.2015.15.03.011] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2014] [Revised: 12/19/2014] [Accepted: 04/30/2015] [Indexed: 01/01/2023] Open
Abstract
OBJECTIVES Ovarian cancer often goes undiagnosed or misdiagnosed in the early stages. The present study aimed to validate a modified version of the Goff Symptom Index (GSI) in an Indian population. METHODS This prospective case-control study was conducted between July 2010 and June 2012 in a university hospital in Manipal, Karnataka, India. A total of 305 inpatients admitted for ovarian pathology investigations and outpatients undergoing routine gynaecological check-ups were included in the study. The modified GSI (MGSI) was used to investigate the presence, severity, frequency and duration of 10 ovarian cancer symptoms on a scale of 1-5. Four additional symptoms were included with those of the original GSI (two symptoms from a previous MGSI and two new symptoms). Patients were regarded as positive for ovarian cancer if symptoms occurred >12 times per month and time since onset was <1 year. Histopathology confirmed the diagnosis of ovarian tumours. RESULTS A total of 13 patients were excluded. The final sample (n = 292) was divided into a test group (n = 74) and a control group (n = 218) based on histopathology. Within the controls, 144 women were found to have benign tumours. The MGSI was positive in 71.6% of the test group as opposed to only 11.5% of the control group. The addition of two symptoms (loss of appetite and weight) to the GSI increased the test's sensitivity from 71.6% to 77% without compromising specificity (88.5%). CONCLUSION Based on these findings, the addition of two new symptoms (loss of appetite and weight) to the GSI is proposed in order to increase the test's sensitivity. However, the addition of urinary symptoms to the GSI requires further validation.
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Affiliation(s)
- Jyothi Shetty
- Department of Obstetrics & Gynecology, Kasturba Medical College, Manipal, Karnataka, India
| | - P Priyadarshini
- Department of Obstetrics & Gynecology, Kasturba Medical College, Manipal, Karnataka, India
| | - Deeksha Pandey
- Department of Obstetrics & Gynecology, Kasturba Medical College, Manipal, Karnataka, India
| | - A P Manjunath
- Department of Obstetrics & Gynaecology, Sultan Qaboos University Hospital, Muscat, Oman
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Prasad K, Sadasivaiah B, Basha SK, Babu MS, Rao VS, Priyadarshini P, Veeranjaneyulu D, Rao BRP. Conservation of wild orchids in Sri Krishnadevaraya University Botanic Garden, Anantapur, Andhra Pradesh, India. J Threat Taxa 2012. [DOI: 10.11609/jott.o2928.2705-8] [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: 11/27/2022] Open
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Mohapatra JK, Priyadarshini P, Pandey L, Subramaniam S, Hemadri D, Sanyal A, Pattnaik B. Phylogenetic analysis of 3C protease (3C(pro)) coding region of Foot-and-mouth disease virus type A. Acta Virol 2009; 53:175-83. [PMID: 19941399 DOI: 10.4149/av_2009_03_175] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Nucleotide sequence analysis of the 3C protease (3C(pro)) region of Foot-and-mouth disease virus type A (FMDV-A) isolates from India has revealed incongruous phylogenetic grouping between 3C(pro) and VP1 region possibly due to the genetic recombination or independent evolution of non-structural and structural protein coding regions. Similar to the VP1 region, the emerging VP3(59)-deletion group maintained its genetic distinctiveness at 3C(pro) region and was found to be diverging with time. Two lineage specific signature aa residues were detected for the deletion group in proof of lineage specific drift or selection events. 3C(pro) region exhibited high degree of conservation as evident from low dN/dS ratio (0.036) and percentage of variable aa positions (20%). A transmembrane domain from aa 27 to 44 could be predicted that possibly anchors 3C to intracellular membranes for better interaction with RNA replication complex. On the basis of sequence conservation, the likelihood that the region aa 121-150 was carrying a vaccine exploitable T-cell epitope was very high.
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Affiliation(s)
- J K Mohapatra
- Project Directorate on Foot and Mouth Disease, Indian Veterinary Research Institute Campus, Mukteswar-Kumaon, Nainital 263138, Uttarakhand, India.
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Priyadarshini P, Murthy BS, Nagaraju J, Singh L. A GATA-binding protein expressed predominantly in the pupal ovary of the silkworm, Bombyx mori. Insect Biochem Mol Biol 2003; 33:185-195. [PMID: 12535677 DOI: 10.1016/s0965-1748(02)00190-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Preferential localization of Bkm (Banded krait minor-satellite) DNA sequences on Y/W chromosomes of higher eukaryotes, which remain highly condensed in somatic cells but undergo extensive decondensation in the germ cells during early stages of development, led to the postulation for the existence of a sex- and tissue-specific Bkm-binding protein (BBP). Accordingly, we purified and characterized a BmBBP expressed predominantly in pupal ovary of the silkworm (Bombyx mori). 2D-PAGE revealed BmBBP as moderately basic (pI 7.8-8, in the range expected for DNA-binding proteins) and Matrix Assisted Laser Desorption/Ionization Time of Flight exhibited a value of 37.5-kDa. BmBBP neither contains nor requires divalent metal ions for its DNA-binding activity, suggesting that it does not belong to the well-studied GATA-family of transcription factors. BmBBP is unusually strong in its DNA-binding characteristics to Bkm (GATA-repeats), which suggests its probable role in bringing about coordinated chromatin conformational changes to activate genes present in associated chromosomal domains. Fluorescence immuno-localization studies employing specific anti-BmBBP antibodies revealed its presence in the follicle cells and in the ooplasm, as well as the nucleus of different developmental stages of oocytes.
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Affiliation(s)
- P Priyadarshini
- Centre for DNA Fingerprinting and Diagnostics, ECIL Road, Nacharam, Hyderabad 500 076, India
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