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Prakash J, Ramesh K, Tripathi D, Kumar R. Corrigendum to "Numerical simulation of heat transfer in blood flow altered by electroosmosis through tapered micro-vessels" [Microvasc. Res. 118 (2018) 162-172]. Microvasc Res 2024; 153:104657. [PMID: 38267351 DOI: 10.1016/j.mvr.2024.104657] [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: 01/26/2024]
Affiliation(s)
- J Prakash
- Department of Mathematics, Agni College of Technology, Thalambur, Chennai 600120, Tamilnadu, India
| | - K Ramesh
- Department of Mathematics, Lovely Professional University, Jalandhar 144411, Punjab, India
| | - D Tripathi
- Department of Mechanical Engineering, Manipal University Jaipur, 303007, Rajasthan, India.
| | - R Kumar
- Department of Mechanical Engineering, Manipal University Jaipur, 303007, Rajasthan, India
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Sharma A, Verma K, Kumar A, Rani S, Chauhan K, Battan B, Kumar R. Delineating the role of host plants in regulating the water and salinity stress induced changes in sandalwood roots. 3 Biotech 2024; 14:133. [PMID: 38660477 PMCID: PMC11035507 DOI: 10.1007/s13205-024-03979-8] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 03/25/2024] [Indexed: 04/26/2024] Open
Abstract
The interaction of root hemi-parasite (sandalwood) with its hosts is crucial for establishing successful plantations under abiotic stresses. In the present study, we explored the best possible host for sandalwood along with its effect on sandalwood physiology in terms of water and nutrients. Interactive effects of host species (Alternanthera sp., Azadirachta indica, Dalbergia sissoo, Melia dubia, and Aquilaria malaccensis) with sandalwood were observed under eight treatments {100% best available water (BAW); 100% BAW + nutrient medium; 50% water deficit; 50% water deficit + nutrient medium; 100% saline water (ECiw 8ds/m); 100% saline water (ECiw 8ds/m) + nutrient medium; 50% water deficit + saline water (ECiw 8ds/m); and 50% water deficit + saline water (ECiw 8ds/m) + nutrient medium}. A significant change in morpho-physiological traits of sandalwood roots was observed under different stress conditions, which were slightly improved through external supply of nutrient medium. Dalbergia sissoo (Shisham) and Melia dubia (Dek) seemed to be the best host plants providing better environment for sandalwood growth and development, i.e., higher plant height (59.7 and 53.68 cm) and collar diameter (3.24 and 3.07 mm) under stresses by maintaining water and ionic balance. Root length is an important parameter that was reduced by 27.58%, 19.22%, and 36.3% under water deficit, salinity, and combined stress of water deficit and salinity. Sandalwood grown with D. sissoo and M. dubia maintained the lowest Ψw (- 1.38 MPa) and Ψs (- 1.47 and - 1.48 MPa), respectively. In addition, sandalwood cultivated with D. sissoo and A. indica had higher accumulation of soluble proteins (0.48 and 0.42 mg/g) and soluble sugars (98.56 and 91.04 mg/g) in their roots. Results also showed that sandalwood roots had higher K+/Na+ with compatible host, i.e., with A. indica (1.85) and D. sissoo (1.83) than other studied hosts. It was also observed that sandalwood plants could not grow and survive alone under stress conditions even with application of nutrient medium. Based on the morphological traits, it was observed that sandalwood grown with hosts, Dalbergia sissoo and Melia dubia, was able to tolerate stress conditions better than other studied hosts. We can further recommend growing sandalwood with D. sissoo and M. dubia as a viable option to endure adverse environmental conditions.
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Affiliation(s)
- Aarju Sharma
- Kurukshetra University, Kurukshetra, 136119 India
- ICAR–Central Soil salinity Research Institute, Karnal, 132001 India
| | - Kamlesh Verma
- ICAR–Central Soil salinity Research Institute, Karnal, 132001 India
| | - Ashwani Kumar
- ICAR–Central Soil salinity Research Institute, Karnal, 132001 India
| | - Sulekha Rani
- Kurukshetra University, Kurukshetra, 136119 India
| | | | - Bindu Battan
- Kurukshetra University, Kurukshetra, 136119 India
| | - Raj Kumar
- ICAR–Central Soil salinity Research Institute, Karnal, 132001 India
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Maurya HS, Vikram RJ, Kumar R, Rahmani R, Juhani K, Sergejev F, Prashanth KG. EBSD investigation of microstructure and microtexture evolution on additively manufactured TiC-Fe based cermets-Influence of multiple laser scanning. Micron 2024; 180:103613. [PMID: 38428322 DOI: 10.1016/j.micron.2024.103613] [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: 12/19/2023] [Revised: 02/20/2024] [Accepted: 02/20/2024] [Indexed: 03/03/2024]
Abstract
Sustainable TiC-Fe-based cermets have been fabricated by adopting an Additive Manufacturing route based on laser powder bed fusion technology (L-PBF). The objective is to produce crack-free cermet components by employing novel multiple laser scanning techniques with variations in laser process parameters. Electron backscatter diffraction analysis (EBSD) was used to study the microstructure and microtexture evolution with variations in laser process parameters. The investigation revealed that adjusting the preheating scan speed (PHS) and melting scan speed (MS) influenced the growth and nucleation of TiC phases. Lowering these speeds resulted in grain coarsening, while higher scan speeds led to grain refinement with larger sub-grain boundaries. Moreover, a high scanning speed increases the degree of dislocation density and internal stress in the fabricated cermet parts. Notably, it is revealed that decreasing the laser scan speed enhanced the proportion of high-angle grain boundaries in the cermet components, signifying an increase in material ductility.
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Affiliation(s)
- H S Maurya
- Department of Mechanical and Industrial Engineering, Tallinn University of Technology, Ehitajate tee 5, Tallinn 19086, Estonia; Luleå University of Technology, Department of Engineering Sciences and Mathematics, Luleå SE-97187, Sweden.
| | - R J Vikram
- Department of Materials Engineering, Indian Institute of Science, Bangalore 560012, India
| | - R Kumar
- Department of Mechanical and Industrial Engineering, Tallinn University of Technology, Ehitajate tee 5, Tallinn 19086, Estonia
| | - R Rahmani
- CiTin- Centro de Interface Tecnológico Industrial, Arcos de Valdevez 4970-786, Portugal; ProMetheus- Instituto Politécnico de Viana do Castelo (IPVC), Viana do Castelo 4900-347, Portugal
| | - K Juhani
- Department of Mechanical and Industrial Engineering, Tallinn University of Technology, Ehitajate tee 5, Tallinn 19086, Estonia
| | - F Sergejev
- Department of Mechanical and Industrial Engineering, Tallinn University of Technology, Ehitajate tee 5, Tallinn 19086, Estonia
| | - K G Prashanth
- Department of Mechanical and Industrial Engineering, Tallinn University of Technology, Ehitajate tee 5, Tallinn 19086, Estonia; Erich Schmid Institute of Materials Science, Austrian Academy of Sciences, Jahnstrasse 12, Leoben 8700, Austria; CBCMT, School of Mechanical Engineering, Vellore Institute of TechnologyVellore, Tamil Nadu 630014, India
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Kashyap T, Thakur R, Ngo GH, Lee D, Fekete G, Kumar R, Singh T. Silt erosion and cavitation impact on hydraulic turbines performance: An in-depth analysis and preventative strategies. Heliyon 2024; 10:e28998. [PMID: 38644884 PMCID: PMC11033088 DOI: 10.1016/j.heliyon.2024.e28998] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Revised: 03/26/2024] [Accepted: 03/27/2024] [Indexed: 04/23/2024] Open
Abstract
The primary issues in the Himalayan Rivers are sediment and cavitation degradation of the hydroelectric power turbine components. During the monsoon season, heavy material is transported by streams in hilly areas like the Himalayas through regular rainfalls, glacial and sub-glacial hydrological activity, and other factors. The severe erosion of hydraulic turbines caused by silt abrasion in these areas requires hydropower facilities to be regularly shut down for maintenance, affecting the plant's overall efficiency. This article provides an in-depth examination of the challenges that can lead to cavitation, silt erosion, and a decrease in the efficiency of various hydroelectric turbines, and it demands attention on the design, manufacture, operation, and maintenance of the turbines. This study's main objective is to critically evaluate earlier theoretical, experimental, and numerical evaluation-based studies (on cavitation and silt erosion) that are provided and addressed throughout the study. As a part of this study, various strategies for mitigating the effects of these problems and elongating the time that turbine may be utilized before they must be replaced have been provided.
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Affiliation(s)
- Tanish Kashyap
- Department of Mechanical Engineering, Shoolini University, Solan, 173229, India
| | - Robin Thakur
- Department of Mechanical Engineering, Shoolini University, Solan, 173229, India
| | - Gia Huy Ngo
- Department of Mechanical Engineering, Gachon University, Seongnam, 13120, South Korea
| | - Daeho Lee
- Department of Mechanical Engineering, Gachon University, Seongnam, 13120, South Korea
| | - Gusztáv Fekete
- Vehicle Industry Research Center, Széchenyi István University, H-9026, Győr, Hungary
| | - Raj Kumar
- Department of Mechanical Engineering, Gachon University, Seongnam, 13120, South Korea
| | - Tej Singh
- Savaria Institute of Technology, Faculty of Informatics, ELTE Eötvös Loránd University, Budapest, 1117, Hungary
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Verma K, Kumar A, Kumar R, Kumar N, Kumar A, Bhardwaj AK, Verma RC, Sharma P. Host Plant Modulated Physio-Biochemical Process Enhances Adaptive Response of Sandalwood ( Santalum album L.) under Salinity Stress. Plants (Basel) 2024; 13:1162. [PMID: 38674572 PMCID: PMC11054670 DOI: 10.3390/plants13081162] [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] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 04/10/2024] [Accepted: 04/19/2024] [Indexed: 04/28/2024]
Abstract
Salinity is one of the most significant abiotic stress that affects the growth and development of high-value tree species, including sandalwood, which can also be managed effectively on saline soils with the help of suitable host species. Therefore, the current investigation was conducted to understand the physiological processes and antioxidant mechanisms in sandalwood along the different salinity gradients to explore the host species that could support sandalwood growth in salt-affected agro-ecosystems. Sandalwood seedlings were grown with ten diverse host species with saline water irrigation gradients (ECiw~3, 6, and 9 dS m-1) and control (ECiw~0.82 dS m-1). Experimental findings indicate a decline in the chlorophyll content (13-33%), relative water content (3-23%), photosynthetic (27-61%) and transpiration rate (23-66%), water and osmotic potential (up to 137%), and ion dynamics (up to 61%) with increasing salinity levels. Conversely, the carotenoid content (23-43%), antioxidant activity (up to 285%), and membrane injury (82-205%) were enhanced with increasing salinity stress. Specifically, among the hosts, Dalbergia sissoo and Melia dubia showed a minimum reduction in chlorophyll content, relative water content, and plant water relation and gas exchange parameters of sandalwood plants. Surprisingly, most of the host tree species maintained K+/Na+ of sandalwood up to moderate water salinity of ECiw~6 dS m-1; however, a further increase in water salinity decreased the K+/Na+ ratio of sandalwood by many-fold. Salinity stress also enhanced the antioxidative enzyme activity, although the maximum increase was noted with host plants M. dubia, followed by D. sissoo and Azadirachta indica. Overall, the investigation concluded that sandalwood with the host D. sissoo can be successfully grown in nurseries using saline irrigation water and, with the host M. dubia, it can be grown using good quality irrigation water.
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Affiliation(s)
- Kamlesh Verma
- ICAR—Central Soil Salinity Research Institute, Karnal 132001, Haryana, India; (K.V.); (N.K.); (A.K.); (A.K.B.)
- Department of Forestry, CCS Haryana Agricultural University, Hisar 125004, Haryana, India;
| | - Ashwani Kumar
- ICAR—Central Soil Salinity Research Institute, Karnal 132001, Haryana, India; (K.V.); (N.K.); (A.K.); (A.K.B.)
| | - Raj Kumar
- ICAR—Central Soil Salinity Research Institute, Karnal 132001, Haryana, India; (K.V.); (N.K.); (A.K.); (A.K.B.)
| | - Naresh Kumar
- ICAR—Central Soil Salinity Research Institute, Karnal 132001, Haryana, India; (K.V.); (N.K.); (A.K.); (A.K.B.)
| | - Arvind Kumar
- ICAR—Central Soil Salinity Research Institute, Karnal 132001, Haryana, India; (K.V.); (N.K.); (A.K.); (A.K.B.)
| | - Ajay Kumar Bhardwaj
- ICAR—Central Soil Salinity Research Institute, Karnal 132001, Haryana, India; (K.V.); (N.K.); (A.K.); (A.K.B.)
| | - Ramesh Chander Verma
- Department of Forestry, CCS Haryana Agricultural University, Hisar 125004, Haryana, India;
| | - Prashant Sharma
- Department of Silviculture and Agroforestry, Dr. Yashwant Singh Parmar University of Horticulture and Forestry, Solan 173230, Himachal Pradesh, India;
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Parashar R, Mal Yadav S, Meena P, Kumar R, Jheeta KS, Saini P, Dutt Patel D. Response of Male Reproductive System Against Ionizing Radiation and Available Radio-protective Agents: Cellular and Molecular Insight. Curr Radiopharm 2024; 17:CRP-EPUB-139568. [PMID: 38584548 DOI: 10.2174/0118744710285874240326041025] [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: 11/24/2023] [Revised: 02/27/2024] [Accepted: 03/05/2024] [Indexed: 04/09/2024]
Abstract
BACKGROUND The reproductive organ, housing spermatogonial stem cells (SSCs), undergoes ongoing division impacted by the irradiation dosage and exposure duration. Within the male reproductive organ, germ stem cells (spermatogonia) and somatic cells (Sertoli and Leydig cells) are present. Lower doses of ionizing (>4-6 Gy) and non-ionizing radiation (radiofrequency and microwave range 900 MHz - 2.45 GHz) may cause sperm-related issues, while higher doses (15 Gy) may affect Leydig cells and testosterone production. Response to radiation varies with age and pubescence. Spermatogonial stem cells, crucial for regenerating the spermatogenic lineage, express molecular markers like Estrogen receptor, FSH (Follicular Stimulating Hormone) receptor, TLR-4 (Toll-like Receptor-4), TLR-5 (Toll-like Receptor-5), FGF2 (Fibroblast Growth Factor-2), KIT (Receptor Tyrosine Kinase), AT-1 (Angiotensin II Type-1 Receptor), LXRs-γ (Liver X Receptor-γ), TNF-β (Tumor Necrosis Factor-β), and PCNA (Proliferating Cell Nuclear Antigen), influencing stem cell activity in testes. OBJECTIVE This study aimed to review the various available radioprotective agents and their efficacy in targeting the male reproductive system from the available literature. RESULT Various radioprotective herbal/synthetic/microbial/metallic extracts/formulations/ drugs [Septilin, Silymarin, Organic Turmeric, Oestrogen, Melatonin, Febuxostat, SQGD (Semiquinone glucoside derivative), Rapamycin, Entolimod, Zinc, Selenium, etc.] have been investigated up to exposure, but owing to effectiveness issues, they are unable to fulfil the aim to the fullest of restoring male fertility and normal testosterone levels during such eventuality. CONCLUSION Further study is needed to optimize these tactics and fill knowledge gaps. Also, the effective components of herbal, synthetic drugs, etc., should be isolated and tested up to clinical levels, paving the way for successful radioprotection and radiomitigation strategies in the male reproductive system.
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Affiliation(s)
- Ronit Parashar
- Department of Zoology, University of Rajasthan, Jaipur, 302004, Rajasthan, India
| | - Sanwar Mal Yadav
- Department of Zoology, University of Rajasthan, Jaipur, 302004, Rajasthan, India
| | - Priyadarshi Meena
- Department of Zoology, University of Rajasthan, Jaipur, 302004, Rajasthan, India
| | - Raj Kumar
- Department of Radiation Biotechnology, Institute of Nuclear Medicine and Allied Science, DRDO, Delhi, 110054, India
| | - Kuldeep S Jheeta
- Department of Radio-physics and Radiotherapy, Sawai Man Singh Medical College, Jaipur, 302004, Rajasthan, India
| | - Priya Saini
- Department of Radio-physics and Radiotherapy, Sawai Man Singh Medical College, Jaipur, 302004, Rajasthan, India
| | - Dev Dutt Patel
- Department of Zoology, University of Rajasthan, Jaipur, 302004, Rajasthan, India
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Kumar A, Srivastava AK, Sardhara J, Mehrotra A, Bhaisora K, Kumar R. Endoscopic MIS-TLIF with Destandau's system: leveraging endoscopy with conventional instruments. Neurosurg Focus Video 2024; 10:V10. [PMID: 38616907 PMCID: PMC11013367 DOI: 10.3171/2024.1.focvid23216] [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] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 01/30/2024] [Indexed: 04/16/2024]
Abstract
This presentation showcases an endoscopic minimally invasive spine surgery (MISS) technique for lumbar interbody fusion. Significantly expanding the scope of Destandau's system within MISS, it serves as a pivotal link to unilateral biportal endoscopy (UBE) for endofusion. The method involves minimally invasive transforaminal lumbar interbody fusion (MIS-TLIF) using a 4-mm rigid endoscope through Destandau's system. With the widespread familiarity with Destandau's system and the absence of specialized instrument requirements, this approach is easily adoptable, particularly in resource-limited centers. The favorable clinical and radiological outcomes underscore the effectiveness of this technique, propelling the role of endoscopy in MISS, particularly in endofusion. The video can be found here: https://stream.cadmore.media/r10.3171/2024.1.FOCVID23216.
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Affiliation(s)
- Ashutosh Kumar
- Department of Neurosurgery, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Arun Kumar Srivastava
- Department of Neurosurgery, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Jayesh Sardhara
- Department of Neurosurgery, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Anant Mehrotra
- Department of Neurosurgery, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Kamlesh Bhaisora
- Department of Neurosurgery, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Raj Kumar
- Department of Neurosurgery, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
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Mehrotra A, Kanjilal S, Kumar B C A, Tataskar P, Verma PK, Bhaisora KS, Kanti Das K, Jaiswal AK, Kumar R. Comparative analysis of supra-orbital keyhole approach and pterional approach for surgical clipping of intracranial anterior circulation aneurysms in patients with favorable Hunt and Hess grades. Clin Neurol Neurosurg 2024; 239:108230. [PMID: 38490076 DOI: 10.1016/j.clineuro.2024.108230] [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: 01/21/2024] [Revised: 02/18/2024] [Accepted: 03/02/2024] [Indexed: 03/17/2024]
Abstract
INTRODUCTION Traditional large craniotomies have been the standard for aneurysm surgery. However, minimally invasive "keyhole" approaches have gained popularity for aneurysm clipping in recent years. This study focuses on Supra-Orbital Keyhole Approach (SOKHA),its use in clipping of aneurysms of the anterior Circle of Willis. Here we share the experiences of a tertiary care center regarding aneurysm clipping using SOKHA. MATERIALS AND METHODS We retrospectively reviewed 166 cases involving aneurysm clipping, with 62 patients undergoing SOKHA and 104 patients undergoing the pterional approach. Factors evaluated included patient demographics, aneurysm characteristics, incidence of intraoperative complications, temporary-clipping usage, and postoperative clinical outcomes. Glasgow Outcome Scale scores were utilized to assess clinical outcomes. RESULTS The study found that both the SOKHA and pterional approaches were similar in terms of age distribution, Hunt and Hess grades, and the incidence of hydrocephalus. The majority of aneurysms in both groups were anterior communicating artery aneurysms.Hydrocephalus was observed in 14.5 % of SOKHA cases and 13.5 % of pterional cases. Intraoperative aneurysm rupture occurred in 8.1 % of SOKHA cases and 7.7 % of pterional cases. There were no mortalities in the SOKHA group, while the pterional group had 1.92 % mortality rate. At the last follow-up, 77.4 % of SOKHA cases and 75.9 % of pterional cases had a favorable outcome (Glasgow Outcome Scale IV and V), with no significant difference. CONCLUSION SOKHA offers the advantage of potential cosmetic benefit with neurological outcomes comparable to those of the traditional pterional approach, in properly selected patients.
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Affiliation(s)
- Anant Mehrotra
- Department of Neurosurgery, Sanjay Gandhi Post-Graduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India.
| | - Soumen Kanjilal
- Department of Neurosurgery, Sanjay Gandhi Post-Graduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India.
| | - Anil Kumar B C
- Department of Neurosurgery, Sanjay Gandhi Post-Graduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India.
| | - Pooja Tataskar
- Department of Neurosurgery, Sanjay Gandhi Post-Graduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India.
| | - Pawan Kumar Verma
- Department of Neurosurgery, Sanjay Gandhi Post-Graduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India.
| | - Kamlesh Singh Bhaisora
- Department of Neurosurgery, Sanjay Gandhi Post-Graduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India.
| | - Kuntal Kanti Das
- Department of Neurosurgery, Sanjay Gandhi Post-Graduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India.
| | - Awadhesh Kumar Jaiswal
- Department of Neurosurgery, Sanjay Gandhi Post-Graduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India.
| | - Raj Kumar
- Department of Neurosurgery, Sanjay Gandhi Post-Graduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India.
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Nadda R, Nirala CK, Singh PK, Lee D, Kumar R, Singh T. An overview of techniques for monitoring and compensating tool wear in micro-electrical discharge machining. Heliyon 2024; 10:e26784. [PMID: 38496867 PMCID: PMC10944208 DOI: 10.1016/j.heliyon.2024.e26784] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 02/17/2024] [Accepted: 02/20/2024] [Indexed: 03/19/2024] Open
Abstract
Micro-electrical discharge machining (μEDM) is severely affected by tool wear and its process variants, which can lead to compromised precision and dimensional disruptions in micro-part production. Several attempts have been made to address this problem by suggesting offline and online (real-time) tool wear compensation strategies. Research efforts in this area have intensified over the last 20 years. However, most methods proposed were applicable only for a few work-tool combinations and in limited input process parametric settings. Instead of tool wear compensation, several research articles have focused on strategies to reduce the negative impact of tool wear on the quality of fabricated parts. The present study systematically reviews various investigations conducted in this area and aims to add cutting-edge compensation for tool wear to future inquiries. The articles reviewed here are explored in detail. Critical findings/innovations are classified into four categories: tool wear in μEDM, tool wear compensation techniques, and offline and online compensation methods.
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Affiliation(s)
- Rahul Nadda
- Department of Biomedical Engineering, Indian Institute of Technology Ropar, Punjab, 140001, India
| | - Chandrakant Kumar Nirala
- Department of Mechanical Engineering, Indian Institute of Technology Ropar, Punjab, 140001, India
| | - Prashant Kumar Singh
- Department of Mechanical Engineering, Invertis University, Bareilly, UP, 243123, India
| | - Daeho Lee
- Department of Mechanical Engineering, Gachon University, Seongnam, 13120, South Korea
| | - Raj Kumar
- Department of Mechanical Engineering, Gachon University, Seongnam, 13120, South Korea
- Faculty of Engineering and Technology, Shoolini University, Solan, H.P., 173229, India
| | - Tej Singh
- Savaria Institute of Technology, Faculty of Informatics, ELTE Eötvös Loránd University, Budapest 1117, Hungary
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Govatati S, Kumar R, Boro M, Traylor JG, Orr AW, Lusis AJ, Rao GN. TRIM13 reduces cholesterol efflux and increases oxidized LDL uptake leading to foam cell formation and atherosclerosis. J Biol Chem 2024; 300:107224. [PMID: 38537695 PMCID: PMC11053335 DOI: 10.1016/j.jbc.2024.107224] [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: 02/14/2024] [Revised: 03/11/2024] [Accepted: 03/13/2024] [Indexed: 04/25/2024] Open
Abstract
Impaired cholesterol efflux and/or uptake can influence arterial lipid accumulation leading to atherosclerosis. Here, we report that tripartite motif-containing protein 13 (TRIM13), a RING-type E3 ubiquitin ligase, plays a role in arterial lipid accumulation leading to atherosclerosis. Using molecular approaches and KO mouse model, we found that TRIM13 expression was induced both in the aorta and peritoneal macrophages (pMφ) of ApoE-/- mice in response to Western diet (WD) in vivo. Furthermore, proatherogenic cytokine interleukin-1β also induced TRIM13 expression both in pMφ and vascular smooth muscle cells. Furthermore, we found that TRIM13 via ubiquitination and degradation of liver X receptor (LXR)α/β downregulates the expression of their target genes ABCA1/G1 and thereby inhibits cholesterol efflux. In addition, TRIM13 by ubiquitinating and degrading suppressor of cytokine signaling 1/3 (SOCS1/3) mediates signal transducer and activator of transcription 1 (STAT1) activation, CD36 expression, and foam cell formation. In line with these observations, genetic deletion of TRIM13 by rescuing cholesterol efflux and inhibiting foam cell formation protects against diet-induced atherosclerosis. We also found that while TRIM13 and CD36 levels were increased, LXRα/β, ABCA1/G1, and SOCS3 levels were decreased both in Mφ and smooth muscle cells of stenotic human coronary arteries as compared to nonstenotic arteries. More intriguingly, the expression levels of TRIM13 and its downstream signaling molecules were correlated with the severity of stenotic lesions. Together, these observations reveal for the first time that TRIM13 plays a crucial role in diet-induced atherosclerosis, and that it could be a potential drug target against this vascular lesion.
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Affiliation(s)
- Suresh Govatati
- Department of Physiology, University of Tennessee Health Science Center, Memphis, Tennessee, USA
| | - Raj Kumar
- Department of Physiology, University of Tennessee Health Science Center, Memphis, Tennessee, USA
| | - Monoranjan Boro
- Department of Physiology, University of Tennessee Health Science Center, Memphis, Tennessee, USA
| | - James G Traylor
- Department of Pathology, Louisiana State University Health Science Center, Shreveport, Louisiana, USA
| | - A Wayne Orr
- Department of Pathology, Louisiana State University Health Science Center, Shreveport, Louisiana, USA
| | - Aldons J Lusis
- Division of Cardiology, Department of Medicine, University of California, Los Angeles, California, USA
| | - Gadiparthi N Rao
- Department of Physiology, University of Tennessee Health Science Center, Memphis, Tennessee, USA.
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Murray C, Kumar R, Pearson I. Thrombolytic therapy in ST-elevation myocardial infarction. Ir Med J 2024; 117:929. [PMID: 38526317] [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: 03/26/2024]
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Matoba Y, Zarrella DT, Pooladanda V, Azimi Mohammadabadi M, Kim E, Kumar S, Xu M, Qin X, Ray LJ, Devins KM, Kumar R, Kononenko A, Eisenhauer E, Veillard IE, Yamagami W, Hill SJ, Sarosiek KA, Yeku OO, Spriggs DR, Rueda BR. Targeting Galectin 3 illuminates its contributions to the pathology of uterine serous carcinoma. Br J Cancer 2024:10.1038/s41416-024-02621-x. [PMID: 38438589 DOI: 10.1038/s41416-024-02621-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Revised: 02/12/2024] [Accepted: 02/14/2024] [Indexed: 03/06/2024] Open
Abstract
BACKGROUND Uterine serous cancer (USC) comprises around 10% of all uterine cancers. However, USC accounts for approximately 40% of uterine cancer deaths, which is attributed to tumor aggressiveness and limited effective treatment. Galectin 3 (Gal3) has been implicated in promoting aggressive features in some malignancies. However, Gal3's role in promoting USC pathology is lacking. METHODS We explored the relationship between LGALS3 levels and prognosis in USC patients using TCGA database, and examined the association between Gal3 levels in primary USC tumors and clinical-pathological features. CRISPR/Cas9-mediated Gal3-knockout (KO) and GB1107, inhibitor of Gal3, were employed to evaluate Gal3's impact on cell function. RESULTS TCGA analysis revealed a worse prognosis for USC patients with high LGALS3. Patients with no-to-low Gal3 expression in primary tumors exhibited reduced clinical-pathological tumor progression. Gal3-KO and GB1107 reduced cell proliferation, stemness, adhesion, migration, and or invasion properties of USC lines. Furthermore, Gal3-positive conditioned media (CM) stimulated vascular tubal formation and branching and transition of fibroblast to cancer-associated fibroblast compared to Gal3-negative CM. Xenograft models emphasized the significance of Gal3 loss with fewer and smaller tumors compared to controls. Moreover, GB1107 impeded the growth of USC patient-derived organoids. CONCLUSION These findings suggest inhibiting Gal3 may benefit USC patients.
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Affiliation(s)
- Yusuke Matoba
- Vincent Center for Reproductive Biology, Department of Obstetrics and Gynecology, Massachusetts General Hospital, Boston, MA, 02114, USA
- Harvard Medical School, Boston, MA, 02115, USA
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Dominique T Zarrella
- Vincent Center for Reproductive Biology, Department of Obstetrics and Gynecology, Massachusetts General Hospital, Boston, MA, 02114, USA
| | - Venkatesh Pooladanda
- Vincent Center for Reproductive Biology, Department of Obstetrics and Gynecology, Massachusetts General Hospital, Boston, MA, 02114, USA
- Harvard Medical School, Boston, MA, 02115, USA
| | - Maryam Azimi Mohammadabadi
- Vincent Center for Reproductive Biology, Department of Obstetrics and Gynecology, Massachusetts General Hospital, Boston, MA, 02114, USA
- Harvard Medical School, Boston, MA, 02115, USA
| | - Eugene Kim
- Vincent Center for Reproductive Biology, Department of Obstetrics and Gynecology, Massachusetts General Hospital, Boston, MA, 02114, USA
| | - Shaan Kumar
- Vincent Center for Reproductive Biology, Department of Obstetrics and Gynecology, Massachusetts General Hospital, Boston, MA, 02114, USA
| | - Mengyao Xu
- Vincent Center for Reproductive Biology, Department of Obstetrics and Gynecology, Massachusetts General Hospital, Boston, MA, 02114, USA
| | - Xingping Qin
- Harvard T.H. Chan School of Public Health, Boston, MA, 02114, USA
| | - Lauren J Ray
- Department of Pathology, Massachusetts General Hospital, Boston, MA, 02114, USA
| | - Kyle M Devins
- Department of Pathology, Massachusetts General Hospital, Boston, MA, 02114, USA
| | - Raj Kumar
- Vincent Center for Reproductive Biology, Department of Obstetrics and Gynecology, Massachusetts General Hospital, Boston, MA, 02114, USA
| | - Artem Kononenko
- Vincent Center for Reproductive Biology, Department of Obstetrics and Gynecology, Massachusetts General Hospital, Boston, MA, 02114, USA
| | - Eric Eisenhauer
- Harvard Medical School, Boston, MA, 02115, USA
- Division Gynecologic Oncology, Department of Obstetrics and Gynecology, Massachusetts General Hospital, Boston, MA, 02114, USA
| | - Irva E Veillard
- Vincent Center for Reproductive Biology, Department of Obstetrics and Gynecology, Massachusetts General Hospital, Boston, MA, 02114, USA
| | - Wataru Yamagami
- Department of Obstetrics and Gynecology, Keio University School of Medicine, Shinjuku-ku, Tokyo, 160-8582, Japan
| | - Sarah J Hill
- Harvard Medical School, Boston, MA, 02115, USA
- Department of Medical Oncology and Division of Molecular and Cellular Oncology, Dana-Farber Cancer Institute, Boston, MA, 02215, USA
| | | | - Oladapo O Yeku
- Vincent Center for Reproductive Biology, Department of Obstetrics and Gynecology, Massachusetts General Hospital, Boston, MA, 02114, USA
- Harvard Medical School, Boston, MA, 02115, USA
- Division of Hematology-Oncology, Massachusetts General Hospital, Boston, MA, 02114, USA
- Department of Medicine, Massachusetts General Hospital, Boston, MA, 02114, USA
| | - David R Spriggs
- Vincent Center for Reproductive Biology, Department of Obstetrics and Gynecology, Massachusetts General Hospital, Boston, MA, 02114, USA
- Harvard Medical School, Boston, MA, 02115, USA
- Division of Hematology-Oncology, Massachusetts General Hospital, Boston, MA, 02114, USA
- Department of Medicine, Massachusetts General Hospital, Boston, MA, 02114, USA
| | - Bo R Rueda
- Vincent Center for Reproductive Biology, Department of Obstetrics and Gynecology, Massachusetts General Hospital, Boston, MA, 02114, USA.
- Harvard Medical School, Boston, MA, 02115, USA.
- Division Gynecologic Oncology, Department of Obstetrics and Gynecology, Massachusetts General Hospital, Boston, MA, 02114, USA.
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Kaur R, Park JH, Kumar R. Effect of shrinkage in photopolymer film on the information transmitted through the holographic waveguide for near eye displays. J Opt Soc Am A Opt Image Sci Vis 2024; 41:A15-A24. [PMID: 38437419 DOI: 10.1364/josaa.507415] [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] [Received: 10/03/2023] [Accepted: 11/27/2023] [Indexed: 03/06/2024]
Abstract
Due to shrinkage in photopolymer materials, the angle of the reconstruction beam in holographic optical elements (HOEs) does not match with the Bragg condition, resulting in a decreased amount of light in the desired direction or loss of transmitted information to rematch the Bragg condition. Thus, to ensure final display features it is imperative to precompensate the shrinkage effect. We derived simplified expressions for precompensation in recording geometries of required HOEs in holographic waveguide-based Maxwellian near eye displays. An acceptable range of detuning from the Bragg angle is also analyzed. The experimentally measured 4.95% shrinkage in photopolymer film for 0° and 45° recording angles of beams was precompensated using -0.86∘ and 43.7° recording angles. Theoretical results are validated through simulation and experiments.
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Spalgais S, Mrigpuri P, Ravishankar N, Kumar R. Pulmonary Function and Diffusing Capacity of Carbon Monoxide in Hypersensitivity Pneumonitis: An Observational Study of 152 Patients. Thorac Res Pract 2024; 25:51-56. [PMID: 38454199 DOI: 10.5152/thoracrespract.2024.23038] [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: 03/09/2024]
Abstract
OBJECTIVE Hypersensitivity pneumonitis (HP) is an inflammatory and/or fibrotic lung disease. The restrictive lung function with low diffusing capacity of carbon monoxide (DLCO) is common in interstitial lung diseases (ILD). There are limited data on pulmonary function test (PFT) in HP and its role for diagnosis is questionable. We analyzed the data of 152 HP patients for type of defect, lung volume, and DLCO. MATERIAL AND METHODS The present study is a retrospective analysis of 152 patients at one of the tertiary chest institutes in India. All diagnosed cases with at least spirometry were included. PFT findings were classified and graded as obstructive, restrictive, and mixed patterns. The correlation of PFT was calculated with disease duration and 6MWT distance. RESULTS The majority were female [106 (70%)], with a mean age of 47.8 ± 12.3 years. Spirometry with lung volume data were available for 97% patients. PFT was abnormal in 118 (80%) cases. Among the patterns of abnormality, the most common type was restrictive (74%) followed by mixed (15%) and obstructive (11%) with the majority in the severe to very severe grade. The mean total lung capacity (TLC) and residual volume (RV) were reduced, with the grade more severe when the pattern of abnormality was restrictive while the RV/ TLC was higher suggestive of air tapping. DLCO data were available for 132 (87%) cases, with levels decreased in 67%. The severity of DLCO was highest when the pattern of abnormality was restrictive. One of the PFT parameters was abnormal in 137 (90%) cases, with isolated decreased DLCO levels seen in 16 (10%) cases. Forced vital capacity (FVC), TLC, and DLCO showed positive correlation with 6MWT distance (FVC r = .22, P = .02; TLC r = .28, P = .003; DLCO r = .30, P = .002). CONCLUSION The PFT abnormality is seen in >80% of HP patients. All types of abnormality were seen, with the restrictive pattern being the most common. Isolated decreased DLCO levels were seen in 10% of cases. We advised to do full PFT for diagnosis and followup of HP.
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Affiliation(s)
- Sonam Spalgais
- Department of Pulmonary Medicine, Vallabhbhai Patel Chest Institute, University of Delhi, New Delhi, India
| | - Parul Mrigpuri
- Department of Pulmonary Medicine, Vallabhbhai Patel Chest Institute, University of Delhi, New Delhi, India
| | - N Ravishankar
- Department of Biostatistics, Vallabhbhai Patel Chest Institute, University of Delhi, Delhi, India
| | - Raj Kumar
- Department of Pulmonary Medicine, Vallabhbhai Patel Chest Institute, University of Delhi, New Delhi, India
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Muraleedharan M, Keshri A, Rao RN, Mehrotra A, Das KK, Dubey A, Hameed N, Chidambaram KS, Aqib M, Kumar R, Manogaran RS. Aspergillus infections of lateral skull base: a case series. Eur Arch Otorhinolaryngol 2024; 281:1221-1229. [PMID: 37668755 DOI: 10.1007/s00405-023-08218-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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 08/28/2023] [Indexed: 09/06/2023]
Abstract
PURPOSE While extensive research with accurate classification has been done in mycoses of the paranasal sinuses and anterior skull base, a similar understanding of lateral skull base fungal pathologies is lacking due to relative rarity and diagnostic difficulties. We introduce a series of eleven cases and two different invasive entities of Aspergillus temporal bone diseases-fungal skull base osteomyelitis (SBO)/malignant otitis externa (MOE) and chronic invasive granulomatous fungal disease (CIGFD). METHODOLOGY A retrospective observational study was conducted at the neuro-otology unit of a tertiary care referral center between July 2017 and November 2022. Diagnosed cases of lateral skull base osteomyelitis with atypical symptoms and lack of response to culture-directed antibiotics were evaluated for fungal origin. Patient data, including history, laboratory findings, serum galactomannan assay, CT and MRI imaging findings, clinical examination findings, and co-morbidities, were analyzed. The treatment course and response were assessed. RESULTS A total of 11 cases were included in the study. Of these, 9 were cases of Aspergillus-induced skull base osteomyelitis (SBO) and 2 of Aspergillus-induced chronic invasive granulomatous fungal disease (CIGFD). CIGFD presented with persistent ear discharge and slowly progressive post-aural swelling, while all patients of fungal SBO had lower cranial nerve palsies. CIGFD responded to excision and antifungals, while SBO responded well to conservative anti-fungal treatment. CONCLUSION In cases of lateral SBO not responding to antibiotic therapy, the possibility of fungal etiology should be considered. Aspergillus spp. seems to be the major fungal pathogen.
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Affiliation(s)
- Manjul Muraleedharan
- Neurotology Unit, Department of Neurosurgery, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, 226014, India
| | - Amit Keshri
- Neurotology Unit, Department of Neurosurgery, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, 226014, India
| | - Ram Nawal Rao
- Department of Pathology, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, 226014, India
| | - Anant Mehrotra
- Department of Neurosurgery, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, 226014, India
| | - Kuntal Kanti Das
- Department of Neurosurgery, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, 226014, India
| | - Abhishek Dubey
- Neurotology Unit, Department of Neurosurgery, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, 226014, India
| | - Nazrin Hameed
- Neurotology Unit, Department of Neurosurgery, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, 226014, India
| | - Kalyana Sundaram Chidambaram
- Neurotology Unit, Department of Neurosurgery, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, 226014, India
| | - Mohd Aqib
- Neurotology Unit, Department of Neurosurgery, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, 226014, India
| | - Raj Kumar
- Department of Neurosurgery, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, 226014, India
| | - Ravi Sankar Manogaran
- Neurotology Unit, Department of Neurosurgery, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, 226014, India.
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Deutsch A, Kumar R, Sevigny M, Potelle J, McMullen T. Trends in the Characteristics and Outcomes of Older Medicare Patients with Traumatic Brain Injury Treated in Inpatient Rehabilitation Facilities: 2013 to 2018. Arch Phys Med Rehabil 2024:S0003-9993(24)00826-8. [PMID: 38417777 DOI: 10.1016/j.apmr.2024.02.716] [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: 09/09/2023] [Revised: 01/18/2024] [Accepted: 02/12/2024] [Indexed: 03/01/2024]
Abstract
OBJECTIVE To describe the characteristics and outcomes of older (65+) Medicare beneficiaries with traumatic brain injury (TBI) treated in inpatient rehabilitation facilities between 2013 and 2018. DESIGN Descriptive study using IRF Patient Assessment Instrument (IRF-PAI) data reporting trends of the sociodemographic and clinical characteristics and outcomes of inpatient rehabilitation facilities Medicare patients with TBI. SETTING Inpatient rehabilitation facilities in the United States PARTICIPANTS: 99,804 older Medicare fee-for-service and Medicare Advantage patients with TBI. INTERVENTIONS Not applicable MAIN OUTCOME MEASURES: Length of stay, self-care and mobility functional outcomes, discharge destination. RESULTS The number of older Medicare beneficiaries with TBI treated in inpatient rehabilitation facilities increased from 14,657 in 2013 to 18,791 in 2018, an increase of 28.2%. In addition to this overall increase in patients, we also found the percentage of males increased slightly (52.9% to 54.8%), there was a higher percentage of patients with tier 3 comorbidities, there was a decrease in the variability of length of stay, there was slightly more self-care and mobility improvement and a slightly higher percentage of patients discharged to the community (67.8% in 2013 and 71.6% in 2018). Newer standardized data showed that prior to the injury, more than one-third used a walker and more than three-quarters had a history of recent falls. CONCLUSIONS Between 2013 and 2018, the number of Medicare beneficiaries with TBI treated in IRFs increased by approximately 28 percent. The characteristics of IRF older patients with TBI changed between 2013 and 2018 toward a slightly higher proportion of males, more comorbidities, and a higher percentage being discharged home after inpatient rehabilitation.
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Affiliation(s)
- Anne Deutsch
- Health Practice, RTI international, Center for Rehabilitation Outcomes Research, Shirley Ryan AbilityLab, Dept of Physical Medicine and Rehabilitation, Feinberg School of Medicine, Northwestern University, Chicago, IL.
| | - Raj Kumar
- Icahn School of Medicine at Mount Sinai, Department of Rehabilitation and Human Performance, New York, NY.
| | | | - John Potelle
- Health Practice, RTI international, RTI International, Waltham, MA.
| | - Tara McMullen
- Division of Post-Acute Care, Center for Clinical Standards and Quality (CCSQ), Centers for Medicare & Medicaid Services, Baltimore, MD.
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Lee K, Perry K, Xu M, Veillard I, Kumar R, Rao TD, Rueda BR, Spriggs DR, Yeku OO. Structural basis for antibody recognition of the proximal MUC16 ectodomain. J Ovarian Res 2024; 17:41. [PMID: 38374055 PMCID: PMC10875768 DOI: 10.1186/s13048-024-01373-9] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 02/13/2024] [Indexed: 02/21/2024] Open
Abstract
BACKGROUND Mucin 16 (MUC16) overexpression is linked with cancer progression, metastasis, and therapy resistance in high grade serous ovarian cancer and other malignancies. The cleavage of MUC16 forms independent bimodular fragments, the shed tandem repeat sequence which circulates as a protein bearing the ovarian cancer biomarker (CA125) and a proximal membrane-bound component which is critical in MUC16 oncogenic behavior. A humanized, high affinity antibody targeting the proximal ectodomain represents a potential therapeutic agent against MUC16 with lower antigenic potential and restricted human tissue expression. RESULTS Here, we demonstrate the potential therapeutic versatility of the humanized antibody as a monoclonal antibody, antibody drug conjugate, and chimeric antigen receptor. We report the crystal structures of 4H11-scFv, derived from an antibody specifically targeting the MUC16 C-terminal region, alone and in complex with a 26-amino acid MUC16 segment resolved at 2.36 Å and 2.47 Å resolution, respectively. The scFv forms a robust interaction with an epitope consisting of two consecutive β-turns and a β-hairpin stabilized by 2 hydrogen bonds. The VH-VL interface within the 4H11-scFv is stabilized through an intricate network of 11 hydrogen bonds and a cation-π interaction. CONCLUSIONS Together, our studies offer insight into antibody-MUC16 ectodomain interaction and advance our ability to design agents with potentially improved therapeutic properties over anti-CA125 moiety antibodies.
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Affiliation(s)
- Kwangkook Lee
- Division of Hematology & Oncology, Department of Medicine, Massachusetts General Hospital-Harvard Medical School, Boston, MA, USA
- Division of Hematology and Oncology, Massachusetts General Hospital, Boston, MA, USA
| | - Kay Perry
- Department of Chemistry and Chemical Biology, Argonne National Laboratory, NE-CAT, Cornell University, Building 436E, 9700 S. Cass Avenue, Argonne, IL, 60439, USA
| | - Mengyao Xu
- Division of Hematology and Oncology, Massachusetts General Hospital, Boston, MA, USA
| | - Irva Veillard
- Division of Hematology and Oncology, Massachusetts General Hospital, Boston, MA, USA
| | - Raj Kumar
- Division of Hematology and Oncology, Massachusetts General Hospital, Boston, MA, USA
| | - Thapi Dharma Rao
- Memorial Sloan Kettering Cancer Center, New York, NY, 10065, USA
| | - Bo R Rueda
- Department of Obstetrics and Gynecology, Vincent Center for Reproductive Biology, Massachusetts General Hospital, Boston, MA, 02114, USA
| | - David R Spriggs
- Division of Hematology & Oncology, Department of Medicine, Massachusetts General Hospital-Harvard Medical School, Boston, MA, USA
| | - Oladapo O Yeku
- Division of Hematology & Oncology, Department of Medicine, Massachusetts General Hospital-Harvard Medical School, Boston, MA, USA.
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Puri D, Kumar R, Kumar S, Thakur MS, Fekete G, Lee D, Singh T. Performance analysis and modelling of circular jets aeration in an open channel using soft computing techniques. Sci Rep 2024; 14:3140. [PMID: 38326386 PMCID: PMC10850504 DOI: 10.1038/s41598-024-53407-3] [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: 06/21/2023] [Accepted: 01/31/2024] [Indexed: 02/09/2024] Open
Abstract
Dissolved oxygen (DO) is an important parameter in assessing water quality. The reduction in DO concentration is the result of eutrophication, which degrades the quality of water. Aeration is the best way to enhance the DO concentration. In the current study, the aeration efficiency (E20) of various numbers of circular jets in an open channel was experimentally investigated for different channel angle of inclination (θ), discharge (Q), number of jets (Jn), Froude number (Fr), and hydraulic radius of each jet (HRJn). The statistical results show that jets from 8 to 64 significantly provide aeration in the open channel. The aeration efficiency and input parameters are modelled into a linear relationship. Additionally, utilizing WEKA software, three soft computing models for predicting aeration efficiency were created with Artificial Neural Network (ANN), M5P, and Random Forest (RF). Performance evaluation results and box plot have shown that ANN is the outperforming model with correlation coefficient (CC) = 0.9823, mean absolute error (MAE) = 0.0098, and root mean square error (RMSE) = 0.0123 during the testing stage. In order to assess the influence of different input factors on the E20 of jets, a sensitivity analysis was conducted using the most effective model, i.e., ANN. The sensitivity analysis results indicate that the angle of inclination is the most influential input variable in predicting E20, followed by discharge and the number of jets.
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Affiliation(s)
- Diksha Puri
- School of Environmental Science, Shoolini University, Solan, Himachal Pradesh, 173229, India
| | - Raj Kumar
- Department of Mechanical Engineering, Gachon University, Seongnam, 13120, South Korea
| | - Sushil Kumar
- Department of Physics, Hansraj College, University of Delhi, Delhi, 110007, India
| | - M S Thakur
- Department of Civil Engineering, Shoolini University, Solan, Himachal Pradesh, 173229, India
| | - Gusztáv Fekete
- Department of Material Science and Technology, Széchenyi István University, 9026, Győr, Hungary
| | - Daeho Lee
- Department of Mechanical Engineering, Gachon University, Seongnam, 13120, South Korea.
| | - Tej Singh
- Savaria Institute of Technology, Faculty of Informatics, ELTE Eötvös Loránd University, Budapest, 1117, Hungary.
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Massa A, Isasi-Fuster A, Requena C, Manrique-Silva E, Kumar R, Nagore E. Nodular type but not vitamin D levels increases the risk of second primary cancers in melanoma patients: An observational study of 663 patients. Actas Dermosifiliogr 2024; 115:143-149. [PMID: 37832865 DOI: 10.1016/j.ad.2023.10.001] [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: 08/05/2023] [Accepted: 10/08/2023] [Indexed: 10/15/2023] Open
Abstract
BACKGROUND Vitamin D deficiency associates with the risk of developing many diseases, including cancer. At the molecular level, vitamin D appears to have an antineoplastic effect. However, the role of vitamin D deficiency in cancer pathogenesis remains unelucidated and numerous studies have resulted in discordant results. This study aimed to determine whether vitamin D deficiency during melanoma diagnosis increases the risk of developing non-cutaneous second primary cancers (SPC). MATERIALS AND METHODS A retrospective study on 663 patients diagnosed with melanoma between 1 January 2011 and 31 October 2022. The effect of each variable on the development of a subsequent non-cutaneous cancer was performed using Kaplan-Meier curves and differences were assessed by log-rank tests. Cox proportional hazard univariate and multivariate models were used to quantify the effect of each variable in the time to develop a non-cutaneous neoplasia. RESULTS Out of 663 patients, 34 developed a non-cutaneous SPC. There was no statistically significant association between vitamin D levels and non-cutaneous SPC development (log-rank, p=0.761). Age>60 years, stage III/IV, and nodular melanoma subtype were significantly associated with the development of a SPC. After multivariate analysis, only age>60 years (HR 3.4; HR CI 95%: 1.5-7.6) and nodular melanoma subtype (HR 2.2; HR CI 95%: 1.0-4.8) were included in the final model. CONCLUSIONS Our results suggest that vitamin D deficiency is not associated with an increased risk of developing non-cutaneous SPC in melanoma patients. However, age over 60 years and nodular melanoma subtype increase the risk for non-cutaneous SPC development.
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Affiliation(s)
- A Massa
- Section of Dermatology, Department of Clinical and Experimental Medicine, University of Parma, Parma, Italy
| | - A Isasi-Fuster
- School of Medicine, Universidad Católica de Valencia San Vicente Mártir, València, Spain
| | - C Requena
- Department of Dermatology, Fundación Instituto Valenciano de Oncología, València, Spain
| | - E Manrique-Silva
- Department of Dermatology, Fundación Instituto Valenciano de Oncología, València, Spain
| | - R Kumar
- Institute of Medical Biometry, University of Heidelberg, Heidelberg, Germany; Institute of Experimental Medicine, Czech Academy of Sciences, Prague, Czech Republic
| | - E Nagore
- School of Medicine, Universidad Católica de Valencia San Vicente Mártir, València, Spain; Department of Dermatology, Fundación Instituto Valenciano de Oncología, València, Spain.
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Massa A, Isasi-Fuster A, Requena C, Manrique-Silva E, Kumar R, Nagore E. Nodular Type but Not Vitamin D Levels Increases the Risk of Second Primary Cancers in Melanoma Patients: An Observational Study of 663 Patients. Actas Dermosifiliogr 2024; 115:T143-T149. [PMID: 38048949 DOI: 10.1016/j.ad.2023.10.038] [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: 08/05/2023] [Accepted: 10/08/2023] [Indexed: 12/06/2023] Open
Abstract
BACKGROUND Vitamin D deficiency associates with the risk of developing many diseases, including cancer. At the molecular level, vitamin D appears to have an antineoplastic effect. However, the role of vitamin D deficiency in cancer pathogenesis remains unelucidated and numerous studies have resulted in discordant results. This study aimed to determine whether vitamin D deficiency during melanoma diagnosis increases the risk of developing non-cutaneous second primary cancers (SPC). MATERIALS AND METHODS A retrospective study on 663 patients diagnosed with melanoma between 1 January 2011 and 31 October 2022. The effect of each variable on the development of a subsequent non-cutaneous cancer was performed using Kaplan-Meier curves and differences were assessed by log-rank tests. Cox proportional hazard univariate and multivariate models were used to quantify the effect of each variable in the time to develop a non-cutaneous neoplasia. RESULTS Out of 663 patients, 34 developed a non-cutaneous SPC. There was no statistically significant association between vitamin D levels and non-cutaneous SPC development (log-rank, p=0.761). Age>60 years, stage III/IV, and nodular melanoma subtype were significantly associated with the development of a SPC. After multivariate analysis, only age>60 years (HR 3.4; HR CI 95%: 1.5-7.6) and nodular melanoma subtype (HR 2.2; HR CI 95%: 1.0-4.8) were included in the final model. CONCLUSIONS Our results suggest that vitamin D deficiency is not associated with an increased risk of developing non-cutaneous SPC in melanoma patients. However, age over 60 years and nodular melanoma subtype increase the risk for non-cutaneous SPC development.
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Affiliation(s)
- A Massa
- Section of Dermatology, Department of Clinical and Experimental Medicine, University of Parma, Parma, Italy
| | - A Isasi-Fuster
- Facultad de Medicina, Universidad Católica de Valencia San Vicente Mártir, València, Spain
| | - C Requena
- Servicio de Dermatología, Fundación Instituto Valenciano de Oncología, València, Spain
| | - E Manrique-Silva
- Servicio de Dermatología, Fundación Instituto Valenciano de Oncología, València, Spain
| | - R Kumar
- Institute of Medical Biometry, University of Heidelberg, Heidelberg, Germany; Institute of Experimental Medicine, Czech Academy of Sciences, Prague, Czech Republic
| | - E Nagore
- Facultad de Medicina, Universidad Católica de Valencia San Vicente Mártir, València, Spain; Servicio de Dermatología, Fundación Instituto Valenciano de Oncología, València, Spain.
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Kumar R, Rottner K, Rao GN. Requirement of Site-Specific Tyrosine Phosphorylation of Cortactin in Retinal Neovascularization and Vascular Leakage. Arterioscler Thromb Vasc Biol 2024; 44:366-390. [PMID: 38126170 PMCID: PMC10872470 DOI: 10.1161/atvbaha.123.320279] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 12/06/2023] [Indexed: 12/23/2023]
Abstract
BACKGROUND Retinal neovascularization is a major cause of vision impairment. Therefore, the purpose of this study is to investigate the mechanisms by which hypoxia triggers the development of abnormal and leaky blood vessels. METHODS A variety of cellular and molecular approaches as well as tissue-specific knockout mice were used to investigate the role of Cttn (cortactin) in retinal neovascularization and vascular leakage. RESULTS We found that VEGFA (vascular endothelial growth factor A) stimulates Cttn phosphorylation at Y421, Y453, and Y470 residues in human retinal microvascular endothelial cells. In addition, we observed that while blockade of Cttn phosphorylation at Y470 inhibited VEGFA-induced human retinal microvascular endothelial cell angiogenic events, suppression of Y421 phosphorylation protected endothelial barrier integrity from disruption by VEGFA. In line with these observations, while blockade of Cttn phosphorylation at Y470 negated oxygen-induced retinopathy-induced retinal neovascularization, interference with Y421 phosphorylation prevented VEGFA/oxygen-induced retinopathy-induced vascular leakage. Mechanistically, while phosphorylation at Y470 was required for its interaction with Arp2/3 and CDC6 facilitating actin polymerization and DNA synthesis, respectively, Cttn phosphorylation at Y421 leads to its dissociation from VE-cadherin, resulting in adherens junction disruption. Furthermore, whereas Cttn phosphorylation at Y470 residue was dependent on Lyn, its phosphorylation at Y421 residue required Syk activation. Accordingly, lentivirus-mediated expression of shRNA targeting Lyn or Syk levels inhibited oxygen-induced retinopathy-induced retinal neovascularization and vascular leakage, respectively. CONCLUSIONS The above observations show for the first time that phosphorylation of Cttn is involved in a site-specific manner in the regulation of retinal neovascularization and vascular leakage. In view of these findings, Cttn could be a novel target for the development of therapeutics against vascular diseases such as retinal neovascularization and vascular leakage.
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Affiliation(s)
- Raj Kumar
- Department of Physiology, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Klemens Rottner
- Division of Molecular Cell Biology, Zoological Institute, Technische Universität Braunschweig, Spielmannstrasse 7, 38106 Braunschweig, Germany
- Department of Cell Biology, Helmholtz Centre for Infection Research, Inhoffenstrasse 7, 38124 Braunschweig, Germany
| | - Gadiparthi N. Rao
- Department of Physiology, University of Tennessee Health Science Center, Memphis, TN 38163, USA
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Kanjilal S, Mehrotra A, Singh V, Singh R, Tataskar P, Prasad SN, Verma PK, Das KK, Bhaisora KS, Jaiswal AK, Kumar R. Contribution of Deep Cerebral Venous Anomaly to the Emergence of Nonaneurysmal Subarachnoid Hemorrhage as Opposed to Aneurysmal Subarachnoid Hemorrhage. World Neurosurg 2024; 182:e405-e413. [PMID: 38030074 DOI: 10.1016/j.wneu.2023.11.115] [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: 11/13/2023] [Accepted: 11/23/2023] [Indexed: 12/01/2023]
Abstract
BACKGROUND The exact reason of nonaneurysmal subarachnoid hemorrhage (SAH) is an enigma. The aim of this study is to identify if type III deep cerebral venous drainage is exclusively prevalent in patients with nonaneurysmal SAH and to enumerate the predictors of poorer outcome in these patients. METHODS All patients of age >18 years, presented at our centre with spontaneous SAH on noncontrast computed tomography head and were divided into 2 groups, aneurysmal and nonaneurysmal SAH after 4-vessel DSA. Based on the deep venous drainage pattern on both sides, basal venous drainage was found and classified into 3 types: type I, type II, and type III. The 3 groups were pitted against one another. Regression analysis were performed to predict the occurrence of nonaneurysmal-SAH with different types of basal vein. RESULTS There were 100 nonaneurysmal SAH cases and 103 aneurysmal SAH cases. The mean age of presentation was 47.8 ± 13.55 years with slight male predominance (52%). The patients with type III venous drainage have 2 times more risk of developing nonaneurysmal SAH (95% confidence interval = 1.21-4.31) as compared to those with aneurysmal SAH. On multivariate analysis, type III basal venous drainage, worse Hunt and Hess grade at presentation, extensive bleeding were predictors of an adverse outcome. CONCLUSIONS The presence of type III venous distribution is associated with a 2-fold increase in the probability of having nonaneurysmal SAH, as well as a 3-fold increase in the risk of developing poorer neurological sequelae.
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Affiliation(s)
- Soumen Kanjilal
- Department of Neurosurgery, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, India
| | - Anant Mehrotra
- Department of Neurosurgery, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, India.
| | - Vivek Singh
- Department of Radiodiagnosis, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, India
| | - Ranapratap Singh
- Department of Neurosurgery, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, India
| | - Pooja Tataskar
- Department of Neurosurgery, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, India
| | - Surya Nandan Prasad
- Department of Radiodiagnosis, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, India
| | - Pawan Kumar Verma
- Department of Neurosurgery, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, India
| | - Kuntal Kanti Das
- Department of Neurosurgery, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, India
| | - Kamlesh Singh Bhaisora
- Department of Neurosurgery, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, India
| | - Awadhesh Kumar Jaiswal
- Department of Neurosurgery, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, India
| | - Raj Kumar
- Department of Neurosurgery, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, India
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Pensia L, Kumar M, Kumar R. Dual Field-of-View Off-Axis Spatially Multiplexed Digital Holography Using Fresnel's Bi-Mirror. Sensors (Basel) 2024; 24:731. [PMID: 38339448 PMCID: PMC10857002 DOI: 10.3390/s24030731] [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] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 01/19/2024] [Accepted: 01/22/2024] [Indexed: 02/12/2024]
Abstract
Digital holography (DH) is an important method for three-dimensional (3D) imaging since it allows for the recording and reconstruction of an object's amplitude and phase information. However, the field of view (FOV) of a DH system is typically restricted by the finite size of the pixel pitch of the digital image sensor. We proposed a new configuration of the DH system based on Fresnel's bi-mirror to achieve doubling the camera FOV of the existing off-axis DH system which leveraged single-shot acquisition and a common-path optical framework. The dual FOV was obtained by spatial frequency multiplexing corresponding to two different information-carrying beams from an object. Experimental evidence of the proposed dual FOV-DH system's viability was provided by imaging two different areas of the test object and an application to surface profilometry by measuring the step height of the resolution chart which showed excellent agreement with an optical profiler. Due to the simple configuration, the proposed system could find a wide range of applications, including in microscopy and optical metrology.
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Affiliation(s)
- Lavlesh Pensia
- CSIR—Central Scientific Instruments Organisation, Sector 30C, Chandigarh 160030, India;
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Manoj Kumar
- Department of Systems Science, Graduate School of System Informatics, Kobe University, Kobe 657-8501, Japan
- Center of Optical Scattering Image Science, Kobe University, Kobe 657-8501, Japan
| | - Raj Kumar
- CSIR—Central Scientific Instruments Organisation, Sector 30C, Chandigarh 160030, India;
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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Mandl A, Jasmine S, Krueger T, Kumar R, Coleman IM, Dalrymple SL, Antony L, Rosen DM, Jing Y, Hanratty B, Patel RA, Jin-Yih L, Dias J, Celatka CA, Tapper AE, Kleppe M, Kanayama M, Speranzini V, Wang YZ, Luo J, Corey E, Sena LA, Casero RA, Lotan T, Trock BJ, Kachhap SK, Denmeade SR, Carducci MA, Mattevi A, Haffner MC, Nelson PS, Rienhoff HY, Isaacs JT, Brennen WN. LSD1 inhibition suppresses ASCL1 and de-represses YAP1 to drive potent activity against neuroendocrine prostate cancer. bioRxiv 2024:2024.01.17.576106. [PMID: 38328141 PMCID: PMC10849473 DOI: 10.1101/2024.01.17.576106] [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: 02/09/2024]
Abstract
Lysine-specific demethylase 1 (LSD1 or KDM1A ) has emerged as a critical mediator of tumor progression in metastatic castration-resistant prostate cancer (mCRPC). Among mCRPC subtypes, neuroendocrine prostate cancer (NEPC) is an exceptionally aggressive variant driven by lineage plasticity, an adaptive resistance mechanism to androgen receptor axis-targeted therapies. Our study shows that LSD1 expression is elevated in NEPC and associated with unfavorable clinical outcomes. Using genetic approaches, we validated the on-target effects of LSD1 inhibition across various models. We investigated the therapeutic potential of bomedemstat, an orally bioavailable, irreversible LSD1 inhibitor with low nanomolar potency. Our findings demonstrate potent antitumor activity against CRPC models, including tumor regressions in NEPC patient-derived xenografts. Mechanistically, our study uncovers that LSD1 inhibition suppresses the neuronal transcriptional program by downregulating ASCL1 through disrupting LSD1:INSM1 interactions and de-repressing YAP1 silencing. Our data support the clinical development of LSD1 inhibitors for treating CRPC - especially the aggressive NE phenotype. Statement of Significance Neuroendocrine prostate cancer presents a clinical challenge due to the lack of effective treatments. Our research demonstrates that bomedemstat, a potent and selective LSD1 inhibitor, effectively combats neuroendocrine prostate cancer by downregulating the ASCL1- dependent NE transcriptional program and re-expressing YAP1.
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Srivastava P, Naja M, Bhardwaj P, Kumar R, Rajwar MC, Seshadri TR. Utilising BC observations to estimate CO contributions from fossil fuel and biomass burning in the Central Himalayan region. Environ Pollut 2024; 341:122975. [PMID: 37992951 DOI: 10.1016/j.envpol.2023.122975] [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: 07/31/2023] [Revised: 10/14/2023] [Accepted: 11/14/2023] [Indexed: 11/24/2023]
Abstract
The Himalayan region is adversely affected by the increasing anthropogenic emissions from the adjacent Indo-Gangetic plain. However, source apportionment studies for the Himalayan region that are crucial for estimating CO concentration, are grossly insufficient, to say the least. It is in this context that our study reported here assumes significance. This study utilizes five years (2014-2018) of ground-based observations of eBC and multiple linear regression framework (MLR) to estimate CO and segregate its fossil fuel and biomass emission fractions at a high-altitude (1958 m) site in the Central Himalayas. The results show that MERRA2 always underestimates the observed CO; MOPITT has a high monthly difference ranging from -32% to +57% while WRF-Chem simulations underestimate CO from February to June and overestimate in other months. In contrast, CO estimated from MLR replicates diurnal and monthly variations and estimates CO with an r2 > 0.8 for 2014-2017. The CO predicted during 2018 closely follows the observed variations, and its mixing ratios lie within ±17% of the observed CO. The results reveal a unimodal diurnal variation of CO, COff (ff: fossil fuel) and CObb (bb: biomass burning) governed by the boundary layer evolution and upslope winds. COff has a higher diurnal amplitude (39.1-67.8 ppb) than CObb (5.7-33.5 ppb). Overall, COff is the major contributor (27%) in CO after its background fraction (58%). CObb fraction reaches a maximum (28%) during spring, a period of increased agricultural and forest fires in Northern India. In comparison, WRF-Chem tracer runs underestimate CObb (-38% to -98%) while they overestimate the anthropogenic CO during monsoon. This study thus attempts to address the lack of continuous CO monitoring and the need to segregate its fossil fuel and biomass sources, specifically over the Central Himalayas, by employing a methodology that utilizes the existing network of eBC observations.
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Affiliation(s)
- Priyanka Srivastava
- National Institute for Environmental Studies (NIES), Tsukuba, 305-8506, Japan
| | - M Naja
- Aryabhatta Research Institute of Observational Sciences, Manora Peak, Nainital, 263001, India.
| | - P Bhardwaj
- Center for Study of Science, Technology and Policy (CSTEP), Bengaluru, 560094, India
| | - R Kumar
- National Center for Atmospheric Research (NCAR), Boulder, CO, 80307-3000, USA
| | - M C Rajwar
- Aryabhatta Research Institute of Observational Sciences, Manora Peak, Nainital, 263001, India
| | - T R Seshadri
- Department of Physics and Astrophysics, University of Delhi, Delhi, 110007, India
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Kumar R, Afrin H, Bhatt HN, Beaven E, Gangavarap A, Esquivel SV, Zahid MI, Nurunnabi M. Mucoadhesive Carrier-Mediated Oral Co-delivery of Bcl2 Inhibitors Improves Gastric Cancer Treatment. ACS Appl Mater Interfaces 2024; 16:305-317. [PMID: 38157479 DOI: 10.1021/acsami.3c15226] [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] [Indexed: 01/03/2024]
Abstract
Gastric cancer treatment is challenging due to the lack of early-stage diagnostic technology and targeted delivery systems. Currently, the available treatments for gastric cancer are surgery, chemotherapy, immunotherapy, and radiation. These strategies are either invasive or require systemic delivery, exerting toxicities within healthy tissues. By creation of a targeted delivery system to the stomach, gastric cancer can be treated in the early stages. Such an approach reduces the negative effects on the rest of the body by minimizing systemic absorbance and random localization. With this in mind, we developed a mucoadhesive vehicle composed of β-Glucan And Docosahexaenoic Acid (GADA) for controlled drug/gene delivery. In the current study, we investigated the therapeutic effect of codelivery Bcl2 inhibitors navitoclax (NAVI) and siRNA (Bcl2) via oral using GADA. The therapeutic efficacy of the GADA-mediated oral NAVI/siRNA was investigated in a gastric cancer mouse model. Higher Bcl2 inhibition efficacy was observed in Western blotting and TUNEL assay in mice treated with GADA/NAVI/siRNA compared to free NAVI, siRNA, and NAVI/siRNA. Histology (H&E) and immunohistochemistry (Ki67, TUNEL, and BCl2) analyses confirmed a significant reduction of the tumor region. Interaction between GADA and mucus resulted in retention for over 6 h and thereby sustained local payload release. The developed oral carrier GADA is an emerging vehicle that has promising potential in oral delivery of both small and large molecules, and their mucoadhesive property results in improved therapeutic efficacy with minimal side effects compared to conventional treatment. This study opens a new window for the effective delivery of oral medicine for the treatment of gastric cancer and other gastrointestinal diseases.
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Affiliation(s)
- Raj Kumar
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Texas at El Paso, El Paso, Texas 79902, United States
- Department of Biomedical Engineering, University of Texas at El Paso, El Paso, Texas 79968, United States
| | - Humayra Afrin
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Texas at El Paso, El Paso, Texas 79902, United States
- Environmental Science & Engineering, University of Texas at El Paso, El Paso, Texas 79965,United States
| | - Himanshu N Bhatt
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Texas at El Paso, El Paso, Texas 79902, United States
- Department of Biomedical Engineering, University of Texas at El Paso, El Paso, Texas 79968, United States
| | - Elfa Beaven
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Texas at El Paso, El Paso, Texas 79902, United States
- Department of Biomedical Engineering, University of Texas at El Paso, El Paso, Texas 79968, United States
| | - Anushareddy Gangavarap
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Texas at El Paso, El Paso, Texas 79902, United States
| | - Stephanie V Esquivel
- Department of Aerospace & Mechanical Engineering, University of Texas at El Paso, El Paso, Texas 79968, United States
| | - Md Ikhtiar Zahid
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Texas at El Paso, El Paso, Texas 79902, United States
- Department of Biomedical Engineering, University of Texas at El Paso, El Paso, Texas 79968, United States
| | - Md Nurunnabi
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Texas at El Paso, El Paso, Texas 79902, United States
- Department of Biomedical Engineering, University of Texas at El Paso, El Paso, Texas 79968, United States
- Environmental Science & Engineering, University of Texas at El Paso, El Paso, Texas 79965,United States
- Border Biomedical Research Center, University of Texas at El Paso, El Paso, Texas 79968, United States
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27
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Yadav LP, Gangadhara K, Apparao VV, Yadav V, Mishra DS, Singh AK, Rane J, Kaushik P, Janani P, Kumar R, Verma AK, Kumar S, Malhotra SK, Shekhawat N. Genetic diversity, morphological traits, quality traits and antioxidants potentiality of Coccinia grandis germplasm under rainfed semi-arid region. Sci Rep 2024; 14:868. [PMID: 38195737 PMCID: PMC10776759 DOI: 10.1038/s41598-023-49091-4] [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: 07/09/2023] [Accepted: 12/04/2023] [Indexed: 01/11/2024] Open
Abstract
The present study was conducted to evaluate the genetic variability for morphological and qualitative traits of Coccinia for development of trait specific lines at ICAR-Central Horticultural Experiment Station (CIAH-RS), Panchmahals (Godhra), Gujarat during 2020-2022. In this study, we evaluated 26 gynoecious accessions to assess the genetic divergence through principal component and cluster analysis. The experiment was carried out in a randomized complete block design with three replications under rainfed semi-arid conditions. High values of PCV and GCV were observed for variables such as NFFP (25.13 and 22.20), PL (23.14 and 20.69), FD (24.01 and 21.46), AFW (22.98 and 20.13), NFPY (26.38 and 24.40), FYP (37.57 and 31.29), FY (35.55 and 33.20), AsC (28.65 and 27.73), Ac (24.32 and 21.06), TSS (37.23 and 35.94), DPPHL (20.71 and 20.38), FRAPL (21.08 and 20.92), TPF(20.81 and 20.45) respectively. High heritability coupled with high genetic advance as per cent of mean was observed for vine length (VL), internodal length (IL), number of female flowers per plant (NFFP), fruit length (FL), peduncle length (PL), fruit diameter (FD), average fruit weight (AFW), number of fruit per plant per year (NFPY), fruit yield per plant (FYP), fruit yield (FY), ascorbic acid (AsC), acidity (Ac), total soluble solids (TSS), total phenols in leaves TPL), total flavonoids in leaves TFL, CUPRAC in leaves (CUPRACL), DPPH in leaves (DPPHL), FRAP in leaves (FRAPL), Total phenols in fruits (TPF), Total flavonoids in fruits (TFF), CUPRAC in fruits (CUPRACF) and DPPH in fruits (DPPHF). The FYP exhibited a significant positive correlation with variables like VL (0.6833), IL (0.2991), NFFP (0.8107), FD (0.5245), AFW (0.6766), NFPY (0.7659), ASC (0.4611), TSS (0.5004) and TPF (0.4281). The estimates of genetic parameters revealed scope for further improvement of fruit yield by selection. Of the eight principal components, PC-I through PC-VIII had eigen values greater than 1 and it accounts 85.02% of the total variation for 26 gynoecious accessions of Ivy gourd. The eigen values of PC-I comprised 5.775% of total variation followed by PC-II (4.250%), PC-III (3.175%), PC-IV (2.588%), PC-V (1.828%), PC-VI (1.447%), PC-VII (1.179%) and PC-VIII (1.013%).The cluster VI and cluster I having highest mean values for most of traits under study. Thus, genotypes from the distinct cluster like cluster VI and I for should be used for selection of parents and varietal improvement for further breeding programme in ivy gourd.
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Affiliation(s)
- Lalu Prasad Yadav
- ICAR-Central Horicultulal Experiment Station (CIAH RS), Godhra, 389340, Gujarat, India.
| | - K Gangadhara
- ICAR-Central Horicultulal Experiment Station (CIAH RS), Godhra, 389340, Gujarat, India
| | - V V Apparao
- ICAR-Central Horicultulal Experiment Station (CIAH RS), Godhra, 389340, Gujarat, India
| | - Vikas Yadav
- ICAR-Central Horicultulal Experiment Station (CIAH RS), Godhra, 389340, Gujarat, India
| | - D S Mishra
- ICAR-Central Horicultulal Experiment Station (CIAH RS), Godhra, 389340, Gujarat, India
| | - A K Singh
- ICAR-Central Horicultulal Experiment Station (CIAH RS), Godhra, 389340, Gujarat, India
| | - Jagdish Rane
- ICAR-Central Institute for Arid Horticulture, Beechwal, Bikaner, 334006, Rajasthan, India
| | - Prashant Kaushik
- Chaudhary Charan Singh Haryana Agricultural University, Hisar, 125 004, Haryana, India
| | - P Janani
- ICAR-Central Potato Research Station, Shillong, 793 009, Meghalaya, India
| | - Raj Kumar
- ICAR-Central Institute for Arid Horticulture, Beechwal, Bikaner, 334006, Rajasthan, India
| | - A K Verma
- ICAR-Central Institute for Arid Horticulture, Beechwal, Bikaner, 334006, Rajasthan, India
| | - Sanjay Kumar
- Chaudhary Charan Singh Haryana Agricultural University, Hisar, 125 004, Haryana, India
| | - S K Malhotra
- ICAR-Directorate of Knowledge Management in Agriculture, Pusa, 110012, New Delhi, India
| | - Neelam Shekhawat
- ICAR-NBPGR Regional Station Jodhpur, C/o CAZRI, Jodhpur, 342003, Rajasthan, India
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Jangid H, Kumar D, Kumar G, Kumar R, Mamidi N. An Emerging Foodborne Pathogen Spotlight: A Bibliometric Analysis and Scholarly Review of Escherichia coli O157 Research. Antibiotics (Basel) 2024; 13:60. [PMID: 38247619 PMCID: PMC10812834 DOI: 10.3390/antibiotics13010060] [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: 12/06/2023] [Revised: 12/25/2023] [Accepted: 01/04/2024] [Indexed: 01/23/2024] Open
Abstract
Foodborne infections pose a substantial global threat, causing an estimated 600 million illnesses and resulting in approximately 420,000 deaths annually. Among the diverse array of pathogens implicated in these infections, Escherichia coli (E. coli), specifically the O157 strain (E. coli O157), emerges as a prominent pathogen associated with severe outbreaks. This study employs a comprehensive bibliometric analysis and scholarly review focused on E. coli O157 research. The bibliometric analysis highlights the significant role played by the United States in the E. coli O157 research domain. Further exploration underscores the noteworthy contributions of the researcher Doyle MP, whose body of work, consisting of 84 documents and an impressive H-Index of 49, reflects their substantial impact in the field. Recent research trends indicate a discernible shift towards innovative detection methods, exemplified by the adoption of CRISPR-CAS and Loop-Mediated Isothermal Amplification. Moreover, high-throughput whole-genome sequencing techniques are gaining prominence for the expeditious analysis of pathogenic E. coli strains. Scientists are increasingly exploring antimicrobial agents, including phage therapy, to address the challenges posed by antibiotic-resistant E. coli strains, thereby addressing critical concerns related to multi-drug resistance. This comprehensive analysis provides vital insights into the dynamic landscape of E. coli O157 research. It serves as a valuable resource for researchers, policymakers, and healthcare professionals dedicated to mitigating E. coli O157 outbreaks and advancing global public health strategies.
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Affiliation(s)
- Himanshu Jangid
- Department of Microbiology, School of Bioengineering and Biosciences, Lovely Professional University, Phagwara 144411, Punjab, India;
| | - Deepak Kumar
- Department of Chemistry, School of Chemical Engineering and Physical Sciences, Lovely Professional University, Phagwara 144411, Punjab, India;
| | - Gaurav Kumar
- Department of Microbiology, School of Bioengineering and Biosciences, Lovely Professional University, Phagwara 144411, Punjab, India;
| | - Raj Kumar
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE 68105, USA
| | - Narsimha Mamidi
- Wisconsin Center for NanoBioSystems, School of Pharmacy, University of Wisconsin-Madison, Madison, WI 53705, USA
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Mehrotra A, Singh K, Kanjilal S, Dikshit P, Kumar A, Verma PK, Das KK, Jaiswal AK, Kumar R. Expanding the Horizons of Minimally Invasive Spine Surgery: Experience of the Destandau Technique for the Treatment of Multiple Spinal Diseases. World Neurosurg 2024; 181:e970-e977. [PMID: 37951463 DOI: 10.1016/j.wneu.2023.11.022] [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: 10/30/2023] [Accepted: 11/06/2023] [Indexed: 11/14/2023]
Abstract
OBJECTIVE Minimally invasive spine surgery is rapidly gaining popularity because of its versatile nature. Traditionally, prolapsed disc has been the most common disease targeted using this technique. However, its usefulness for various other diseases has also been shown in studies. We present our experience of using this technique for various spinal diseases apart from prolapsed discs. METHODS This is a retrospective study in which patients operated on by a single surgeon from January 2019 to April 2023 were included. Cases that required conversion to open technique were excluded. Intraoperative findings and postoperative courses were obtained from patient records. RESULTS A total of 47 patients were included in the study, of whom 29 were male and 18 were female. The various diseases treated comprised intradural extramedullary (IDEM) tumors (n = 23), hypertrophied/ossified ligamentum flavum (n = 9), arachnoid cysts (n = 6), dermoid/epidermoid cysts (n = 4), detethering of cord (n = 3), and posterior cervical decompression for an ossified posterior longitudinal ligament (n = 2). The average duration of surgery was 2.1 ± 1.2 hours and the mean intraoperative blood loss was 138.4 ± 59.1 mL. The mean length of hospital stay was 2.3 ± 0.9 days. Two patients had superficial wound infection and none of the operated patients had cerebrospinal fluid leakage. Re-exploration was not required in any of the operated patients. CONCLUSIONS Minimally invasive techniques for dealing with multiple diseases involving the spine are as good as traditional open techniques, with some additional advantages of lesser tissue trauma, early return to work, and so on. However, one must overcome the steep learning curve before adopting them in day-to-day practice.
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Affiliation(s)
- Anant Mehrotra
- Department of Neurosurgery, Sanjay Gandhi Institute of Medical Sciences, Lucknow, Uttar Pradesh, India.
| | - Kavindra Singh
- Department of Neurosurgery, Sanjay Gandhi Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Soumen Kanjilal
- Department of Neurosurgery, Sanjay Gandhi Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Priyadarshi Dikshit
- Department of Neurosurgery, Sanjay Gandhi Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Ashutosh Kumar
- Department of Neurosurgery, Sanjay Gandhi Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Pawan Kumar Verma
- Department of Neurosurgery, Sanjay Gandhi Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Kuntal Kanti Das
- Department of Neurosurgery, Sanjay Gandhi Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Awadhesh Kumar Jaiswal
- Department of Neurosurgery, Sanjay Gandhi Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Raj Kumar
- Department of Neurosurgery, Sanjay Gandhi Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
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Dutta S, Goel N, Kumar R. Assessment of frailty and its predictors in chronic obstructive pulmonary disease. Lung India 2024; 41:17-24. [PMID: 38160454 PMCID: PMC10883449 DOI: 10.4103/lungindia.lungindia_119_23] [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: 03/18/2023] [Accepted: 08/19/2023] [Indexed: 01/03/2024] Open
Abstract
BACKGROUND Frailty represents a state of risk in which a relatively small stressor results in a disproportionate decline in health status. This study aims to determine the prevalence of frailty among patients with COPD in the Indian population and its associated risk factors. METHODS A descriptive cross-sectional study was conducted in 150 COPD patients. Frailty was assessed using the frailty phenotype method. RESULTS The mean age (SD) of the study population was 60.59 (5.9) years with 88.67% males and 53.33% ex-smokers. The prevalence of frailty was 51.33% (n = 77). Most of the frail patients belonged to GOLD group D (66.23%) (P < 0.0001). Post-bronchodilator FEV1(%) was lowest in the frail group (40 [36-47]%) (P < 0.0001). Risk of frailty significantly correlated with smoking pack years (1.036; 1.001-1.074), history of 1 exacerbation in last year (6.810; 2.036-22.779), post-bronchodilator FVC(%) (0.955; 0.926-0.985), post-bronchodilator FEV1(%) (0.940; 0.913-0.968), distance covered in 6-minute walk test [0.975; 0.965-0.986] and dyspnoea severity [1.044; 1.024-1.063]. In multivariate regression, 6-minute walk distance and GOLD group B were the independent predictors of frailty in COPD. CONCLUSION The prevalence of frailty in Indian patients with COPD was 51.33%. Six-minute walk distance is an important predictor of frailty. Early identification of frailty will lead to prompt intervention and rehabilitation.
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Affiliation(s)
- Sharmistha Dutta
- Department of Pulmonary Medicine, Vallabhbhai Patel Chest Institute, University of Delhi, Delhi, India
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Beaven E, Kumar R, An JM, Mendoza H, Sutradhar SC, Choi W, Narayan M, Lee YK, Nurunnabi M. Potentials of ionic liquids to overcome physical and biological barriers. Adv Drug Deliv Rev 2024; 204:115157. [PMID: 38104896 PMCID: PMC10787599 DOI: 10.1016/j.addr.2023.115157] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 12/04/2023] [Accepted: 12/10/2023] [Indexed: 12/19/2023]
Abstract
Over the last decades, ionic liquids (IL) have shown great potential in non-invasive delivery starting from synthetic small molecules to biological large molecules. ILs are emerging as a particular class of drug delivery systems due to their unique physiochemical properties, simple surface modification, and functionalization. These features of IL help achieve specific design principles that are essential for a non-invasive drug delivery system. In this review, we have discussed IL and their applications in non-invasive drug delivery systems. We evaluated state-of-the-art development and advances of IL aiming to mitigate the biological and physical barriers to improve transdermal and oral delivery, summarized in this review. We also provided an overview of the various factors determining the systemic transportation of IL-based formulation. Additionally, we have emphasized how the ILs facilitate the transportation of therapeutic molecules by overcoming biological barriers.
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Affiliation(s)
- Elfa Beaven
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Texas at El Paso, El Paso, TX 79902, United States; Biomedical Engineering Program, College of Engineering, University of Texas at El Paso, El Paso, TX 79968, United States
| | - Raj Kumar
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Texas at El Paso, El Paso, TX 79902, United States; Biomedical Engineering Program, College of Engineering, University of Texas at El Paso, El Paso, TX 79968, United States
| | - Jeong Man An
- Department of Bioengineering, College of Engineering, Hanyang University, Seoul 04763, Republic of Korea
| | - Hannia Mendoza
- Department of Chemistry and Biochemistry, College of Science, University of Texas at El Paso, El Paso, TX 79968, United States
| | - Sabuj Chandra Sutradhar
- 4D Convergence Technology Institute, Korea National University of Transportation, Jungpyeong 27909, Republic of Korea
| | - Wonho Choi
- 4D Convergence Technology Institute, Korea National University of Transportation, Jungpyeong 27909, Republic of Korea
| | - Mahesh Narayan
- Department of Chemistry and Biochemistry, College of Science, University of Texas at El Paso, El Paso, TX 79968, United States
| | - Yong-Kyu Lee
- Department of Bioengineering, College of Engineering, Hanyang University, Seoul 04763, Republic of Korea; Department of Chemical and Biological Engineering, College of Engineering, Korea National University of Transportation, Chungju 380-702, Republic of Korea; 4D Convergence Technology Institute, Korea National University of Transportation, Jungpyeong 27909, Republic of Korea.
| | - Md Nurunnabi
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Texas at El Paso, El Paso, TX 79902, United States; Biomedical Engineering Program, College of Engineering, University of Texas at El Paso, El Paso, TX 79968, United States; Border Biomedical Research Center, University of Texas at El Paso, El Paso, TX 79968, United States.
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Akella PL, Kumar R. An advanced deep learning method to detect and classify diabetic retinopathy based on color fundus images. Graefes Arch Clin Exp Ophthalmol 2024; 262:231-247. [PMID: 37548671 DOI: 10.1007/s00417-023-06181-3] [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: 02/23/2023] [Revised: 06/10/2023] [Accepted: 07/17/2023] [Indexed: 08/08/2023] Open
Abstract
BACKGROUND In this article, we present a computerized system for the analysis and assessment of diabetic retinopathy (DR) based on retinal fundus photographs. DR is a chronic ophthalmic disease and a major reason for blindness in people with diabetes. Consistent examination and prompt diagnosis are the vital approaches to control DR. METHODS With the aim of enhancing the reliability of DR diagnosis, we utilized the deep learning model called You Only Look Once V3 (YOLO V3) to recognize and classify DR from retinal images. The DR was classified into five major stages: normal, mild, moderate, severe, and proliferative. We evaluated the performance of the YOLO V3 algorithm based on color fundus images. RESULTS We have achieved high precision and sensitivity on the train and test data for the DR classification and mean average precision (mAP) is calculated on DR lesion detection. CONCLUSIONS The results indicate that the suggested model distinguishes all phases of DR and performs better than existing models in terms of accuracy and implementation time.
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Affiliation(s)
- Prasanna Lakshmi Akella
- Department of Electronics and Instrumentation Engineering, National Institute of Technology, Dimapur, Nagaland, India.
| | - R Kumar
- Department of Electronics and Instrumentation Engineering, National Institute of Technology, Dimapur, Nagaland, India
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Singh AK, Kumar A, Arora S, Kumar R, Verma A, Khalilullah H, Jaremko M, Emwas AH, Kumar P. Current insights and molecular docking studies of HIV-1 reverse transcriptase inhibitors. Chem Biol Drug Des 2024; 103:e14372. [PMID: 37817296 DOI: 10.1111/cbdd.14372] [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: 03/21/2023] [Revised: 08/12/2023] [Accepted: 09/22/2023] [Indexed: 10/12/2023]
Abstract
Human immunodeficiency virus (HIV) causes acquired immunodeficiency syndrome (AIDS), a lethal disease that is prevalent worldwide. According to the Joint United Nations Programme on HIV/AIDS (UNAIDS) data, 38.4 million people worldwide were living with HIV in 2021. Viral reverse transcriptase (RT) is an excellent target for drug intervention. Nucleoside reverse transcriptase inhibitors (NRTIs) were the first class of approved antiretroviral drugs. Later, a new type of non-nucleoside reverse transcriptase inhibitors (NNRTIs) were approved as anti-HIV drugs. Zidovudine, didanosine, and stavudine are FDA-approved NRTIs, while nevirapine, efavirenz, and delavirdine are FDA-approved NNRTIs. Several agents are in clinical trials, including apricitabine, racivir, elvucitabine, doravirine, dapivirine, and elsulfavirine. This review addresses HIV-1 structure, replication cycle, reverse transcription, and HIV drug targets. This study focuses on NRTIs and NNRTIs, their binding sites, mechanisms of action, FDA-approved drugs and drugs in clinical trials, their resistance and adverse effects, their molecular docking studies, and highly active antiretroviral therapy (HAART).
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Affiliation(s)
- Ankit Kumar Singh
- Department of Pharmaceutical Sciences and Natural Products, Central University of Punjab, Bathinda, Punjab, India
| | - Adarsh Kumar
- Department of Pharmaceutical Sciences and Natural Products, Central University of Punjab, Bathinda, Punjab, India
| | - Sahil Arora
- Department of Pharmaceutical Sciences and Natural Products, Central University of Punjab, Bathinda, Punjab, India
| | - Raj Kumar
- Department of Pharmaceutical Sciences and Natural Products, Central University of Punjab, Bathinda, Punjab, India
| | - Amita Verma
- Department of Pharmaceutical Sciences, Bioorganic and Medicinal Chemistry Research Laboratory, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj, Uttar Pradesh, India
| | - Habibullah Khalilullah
- Department of Pharmaceutical Chemistry and Pharmacognosy, Unaizah College of Pharmacy, Qassim University, Unayzah, Saudi Arabia
| | - Mariusz Jaremko
- Smart-Health Initiative (SHI) and Red Sea Research Center (RSRC), Division of Biological and Environmental Sciences and Engineering (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
| | - Abdul-Hamid Emwas
- Core Labs, King Abdullah University of Science and Technology (KAUST), Thuwal, Saudi Arabia
| | - Pradeep Kumar
- Department of Pharmaceutical Sciences and Natural Products, Central University of Punjab, Bathinda, Punjab, India
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Sasapardhi SB, Verma PK, Srivastava AK, Das KK, Kumar A, Dikshit P, Maurya VP, Bhaisora KS, Mehrotra A, Jaiswal AK, Mishra P, Behari S, Kumar R, Mishra H, Shahare K. An institutional study on accuracy of freehand cervical C1 C2 screws placement by knock and drill technique in craniovertebral anomalous bony anatomy: An evaluation of more than 600 screws based on SGPGI screw accuracy criteria. J Craniovertebr Junction Spine 2024; 15:83-91. [PMID: 38644916 PMCID: PMC11029100 DOI: 10.4103/jcvjs.jcvjs_116_23] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 01/29/2024] [Indexed: 04/23/2024] Open
Abstract
Purpose To assess the accuracy of freehand cervical C1 C2 screws placement by knock and drill (K and D) technique in craniovertebral anomalous bony anatomy. Materials and Methods From January 2017 to December 2022, 682 consecutive C1 C2 screws in 215 patients with craniovertebral junction (CVJ) anomalies were enrolled. All patients underwent posterior fixation with K and D technique without any fluoroscopic guidance. The patient's demographic details, clinical details, radiological details, major intraoperative events, and postoperative complications were noted. The screws malposition grades and direction on CT images in the axial and sagittal plane were defined as new per proposed "SGPGI accuracy criteria." All patients had a clinical evaluation at 3-month follow-up. Results Total 682 C1, C2 screws were placed in 215 patients for CVJ anomalies using K and D technique. The accuracy of screws placement by freehand technique was 84.46% (576/682). So with technique explained the rate of malplacement in simple (16.35%) and complex (15.19%) groups were almost comparable and comparison difference was not significant (P = 0.7005). Conclusion The freehand technique, as described, is effective in cases of anomalous bony anatomy, and it is mandatory in complex CVJ anomalies. The accuracy of screw placement and VA injury is comparable with major studies. This technique is supposedly cost-effective and less hazardous to both health-care workers and patients.
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Affiliation(s)
- Sudhir Bisan Sasapardhi
- Department of Neurosurgery, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Pawan Kumar Verma
- Department of Neurosurgery, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Arun Kumar Srivastava
- Department of Neurosurgery, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Kuntal Kanti Das
- Department of Neurosurgery, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Ashutosh Kumar
- Department of Neurosurgery, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | | | - Ved Prakash Maurya
- Department of Neurosurgery, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Kamlesh Singh Bhaisora
- Department of Neurosurgery, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Anant Mehrotra
- Department of Neurosurgery, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Awadhesh Kumar Jaiswal
- Department of Neurosurgery, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Prabhaker Mishra
- Department of Biostatistics and Health Informatics, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Sanjay Behari
- Department of Neurosurgery, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Raj Kumar
- Department of Neurosurgery, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Harshit Mishra
- Department of Neuroanesthesiology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Kalyani Shahare
- Department of Neuroanesthesiology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
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Kanjilal S, Das KK, Srivastava AK, Mehrotra A, Bhaisora KS, Jaiswal AK, Kumar R. Extradural Anterior Clinoidectomy: The "Key Stone" of Clinoidal Meningioma Resection. Neurol India 2024; 72:20-23. [PMID: 38442995 DOI: 10.4103/neurol-india.neurol-india-d-23-00687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Accepted: 01/11/2024] [Indexed: 03/07/2024]
Affiliation(s)
- Soumen Kanjilal
- Department of Neurosurgery, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
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Singh M, Ahamed TPW, Maurya VP, Gupta P, Bhaisora KS, Srivastava AK, Verma PK, Das KK, Kumar A, Dikshit P, Mehrotra A, Jaiswal AK, Behari S, Kumar R. Stereotactic biopsy for brain lesions: Doing more with less. J Neurosci Rural Pract 2024; 15:95-102. [PMID: 38476427 PMCID: PMC10927046 DOI: 10.25259/jnrp_258_2023] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 09/17/2023] [Indexed: 03/14/2024] Open
Abstract
Objectives Stereotactic biopsy (STB) is a potential diagnostic tool considering its minimal invasiveness, high diagnostic yield, and minimal associated complications. Over the years, various frame-based instrument systems and frameless stereotactic biopsy systems have emerged to be employed in clinical use. With this study, we intend to get more by doing less in the form of STB for the patients of doubtful intracranial lesions treated over the past 5 years. We also want to highlight the technique of performing the procedure under scalp block, which can be used as a versatile tool in many clinical scenarios. Stereotactic biopsies may be planned even in rural district-level health facilities. One-time investment to procure instruments and avail existing imaging can lead to establishing definitive diagnoses in many doubtful cases. This will result in lesser cost and early establishment of treatment. Independent risk factors determining the outcome, such as deep-seated lesions, associated edema, and intraoperative hypertension, were studied. Establishing the diagnosis helped in prognosticating the disease, explaining the natural progression of symptoms, and starting adjuvant therapy. This tissue biopsy would also help secure samples for research and molecular analysis. Materials and Methods Twenty patients underwent STBs at our institution between January 2018 and December 2022. We retrospectively analyzed patient characteristics, tumor pathology, surgical procedures, and outcomes, including the diagnostic value and surgery-related complications. These patients were followed up, and their progression-free and overall survival were analyzed. The need for adjuvant treatment was noted and analyzed. All procedures were performed using Cosman Roberts Wells® stereotactic frame. Pre-procedure magnetic resonance scans were performed at the time of admission. Contrast-enhanced computerized tomography (CT) scan after frame application was performed to identify targets and calculate the coordinates. A post-procedure CT scan was done to confirm the accessibility of the targeted lesion. Results The most common location of the tumor was a deep-seated thalamic lesion. A definitive diagnosis was established in 19 patients (95%) at the first STB. The diagnoses were glioma in 55% of cases, primary central nervous system lymphoma, tuberculosis, and demyelinating disorders in 10% of each, and a metastatic brain tumor in 1 (5%). The post-operative complications were all transient except in one patient with deterioration of motor weakness. The follow-up was noted, and modes of adjuvant treatment needed in these patients were recorded. Conclusion Stereotactic biopsy is a useful and effective method for achieving a definitive diagnosis and aiding in treating multifocal or small deep-seated lesions in or around eloquent regions.
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Affiliation(s)
- Mayank Singh
- Department of Neurosurgery, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - T. P. Waseem Ahamed
- Department of Neurosurgery, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Ved Prakash Maurya
- Department of Neurosurgery, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Pragya Gupta
- Department of Anesthesiology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Kamlesh Singh Bhaisora
- Department of Neurosurgery, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Arun Kumar Srivastava
- Department of Neurosurgery, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Pawan Kumar Verma
- Department of Neurosurgery, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Kuntal Kanti Das
- Department of Neurosurgery, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Ashutosh Kumar
- Department of Neurosurgery, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Priyadarshi Dikshit
- Department of Neurosurgery, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Anant Mehrotra
- Department of Neurosurgery, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Awadhesh Kumar Jaiswal
- Department of Neurosurgery, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Sanjay Behari
- Department of Neurosurgery, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Raj Kumar
- Department of Neurosurgery, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
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Singh D, Malhotra P, Agarwal P, Kumar R. N-acetyl-l-tryptophan (NAT) ameliorates radiation-induced cell death in murine macrophages J774A.1 via regulating redox homeostasis and mitochondrial dysfunction. J Biochem Mol Toxicol 2024; 38:e23529. [PMID: 37702290 DOI: 10.1002/jbt.23529] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 08/02/2023] [Accepted: 08/25/2023] [Indexed: 09/14/2023]
Abstract
Ionizing radiation interacts with the immune system and induces molecular damage in the cellular milieu by generating reactive oxygen species (ROS) leading to cell death. The present study was performed to investigate the protective efficacy of N-acetyl-L-tryptophan (NAT) against gamma-radiation-induced cell death in murine macrophage J774A.1 cells. The radioprotective efficacy of NAT was evaluated in terms of cell survivability, effect on antioxidant enzyme activity, and free radicals inhibition. Radioprotective efficacy of NAT pretreatment to irradiated cells was assessed via cell cycle progression, mitochondrial membrane potential (MMP) perturbation, and apoptosis regulation using flow cytometry. Results of the study demonstrated significant radioprotective efficacy (>80%) of NAT in irradiated cells as estimated by sulforhodamine B (SRB), MTT, and clonogenic assay. Significant (p < 0.001) reduction in ROS, xanthine oxidase, and mitochondrial superoxide levels along with increment in catalase, glutathione-s-transferase, glutathione, and ATPase activities in NAT pretreated plus irradiated cells was observed as compared to the gamma-irradiated cells. Further, significant (p < 0.001) stabilization of MMP and reduction in apoptosis was also observed in NAT pretreated plus irradiated cells as compared to irradiated cells that not pretreated with NAT. The current study demonstrates that NAT pretreatment to irradiated cells protects against gamma radiation-induced cell death by reducing oxidative stress, stabilizing MMP, and inhibiting apoptosis. These observations conclusively highlight the potential of developing NAT as a prospective radioprotective agent upon further validation using in-depth preclinical assessment in cellular and animal models.
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Affiliation(s)
- Darshana Singh
- Institute of Nuclear Medicine and Allied Sciences, Delhi, India
| | - Poonam Malhotra
- Institute of Nuclear Medicine and Allied Sciences, Delhi, India
| | - Prerna Agarwal
- Institute of Nuclear Medicine and Allied Sciences, Delhi, India
| | - Raj Kumar
- Institute of Nuclear Medicine and Allied Sciences, Delhi, India
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Kumar R, Kumar M, Raj S, Arisham DK, Mavi AK, Singh K. Smoking cessation and its significant role in the Indian scenario. Monaldi Arch Chest Dis 2023. [PMID: 38050469 DOI: 10.4081/monaldi.2023.2814] [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: 10/11/2023] [Accepted: 11/16/2023] [Indexed: 12/06/2023] Open
Abstract
Given the increased health dangers of tobacco use, particularly in developing countries, smoking cessation intervention is crucially important. The aim of this study is to determine and assess the effectiveness of a comprehensive smoking cessation intervention program, incorporating behavior modification, counseling, and pharmacologic treatments, in the context of the Indian scenario. The process of initiating smoking or tobacco cessation begins with the evaluation of the distinct stages that smokers undergo as part of their journey toward behavioral change. There are five different levels of preparation for quitting smoking, i.e., i) not prepared (pre-contemplation); ii) unsure (contemplation); iii) prepared (preparation); iv) action; and v) maintenance. Behavior modification and counseling are essential. The "5 A's"-based intervention uses ask, advise, assess, assist, and arrange as part of its strategy. First-line treatments such as nicotine replacement therapy, bupropion, and varenicline, as well as second-line treatments such as clonidine, cytisine, and nortriptyline, are the foundation of pharmacologic care. Every healthcare professional has a duty to help smokers stop using tobacco, and the intervention should be both therapeutic and diagnostic. Combining behavioral and social support yields the best results, along with pharmacotherapy whenever needed.
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Affiliation(s)
- Raj Kumar
- Department of Pulmonary Medicine, Vallabhbhai Patel Chest Institute, University of Delhi.
| | - Manoj Kumar
- Department of Pulmonary Medicine, Vallabhbhai Patel Chest Institute, University of Delhi.
| | | | - Dileep Kumar Arisham
- Department of Pulmonary Medicine, Vallabhbhai Patel Chest Institute, University of Delhi.
| | - Anil Kumar Mavi
- Department of Pulmonary Medicine, Vallabhbhai Patel Chest Institute, University of Delhi.
| | - Kamal Singh
- Department of Pulmonary Medicine, Vallabhbhai Patel Chest Institute, University of Delhi.
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Singh K, Kumar A, Srivastava A, Singh RP, Kumar R. Tension pneumocephalus in a patient with NF1 following ventriculoperitoneal shunt-deciphering the cause and proposed management strategy. Childs Nerv Syst 2023; 39:3601-3606. [PMID: 37392224 DOI: 10.1007/s00381-023-06052-6] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Accepted: 06/22/2023] [Indexed: 07/03/2023]
Abstract
INTRODUCTION Spontaneous pneumocephalus following ventriculoperitoneal shunting is a very unique complication, seen in a handful of patients. Small bony defects form as a result of chronically raised intracranial pressure, which can later lead to pneumocephalus once intracranial pressure decreases following ventriculoperitoneal shunting. CASE REPORT Here, we present a case of a 15-year-old girl with NF1 who presented to us with pneumocephalus 10 months following shunting and our management strategy along with a literature review of this condition. CONCLUSION NF1 & hydrocephalus can lead to skull base erosion, which needs to be looked up before proceeding with VP shunting to avoid delayed onset pneumocephalus. SOKHA with the opening of LT is a minimally invasive approach suitable to tackle both problems simultaneously.
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Affiliation(s)
- Kavindra Singh
- Department of Neurosurgery, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Raebareli Road, Lucknow, Uttar Pradesh, 226014, India
| | - Ashutosh Kumar
- Department of Neurosurgery, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Raebareli Road, Lucknow, Uttar Pradesh, 226014, India.
| | - Arun Srivastava
- Department of Neurosurgery, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Raebareli Road, Lucknow, Uttar Pradesh, 226014, India
| | - Rana P Singh
- Department of Neurosurgery, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Raebareli Road, Lucknow, Uttar Pradesh, 226014, India
| | - Raj Kumar
- Department of Neurosurgery, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Raebareli Road, Lucknow, Uttar Pradesh, 226014, India
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Patel J, Neville C, Kumar R, Grey-Davies E, Hutt R, van Dijk FS, Chan LY, Walter E. Familial hepatic rupture in vascular Ehlers-Danlos syndrome in pregnancy with atypical thromboses. JRSM Open 2023; 14:20542704231215970. [PMID: 38106362 PMCID: PMC10725090 DOI: 10.1177/20542704231215970] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2023] Open
Abstract
This case highlights the importance of genetic testing over fibroblast testing and presents the first published thromboelastometry data in vascular Ehlers-Danlos syndrome.
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Affiliation(s)
- Jesal Patel
- Department of Intensive Care, Royal Surrey County Hospital, Surrey, UK
| | - Cai Neville
- Department of Rheumatology, Royal Surrey County Hospital, Surrey, UK
| | - Raj Kumar
- Department of General Surgery, Royal Surrey County Hospital, Surrey, UK
| | | | - Renata Hutt
- Department of Obstetrics and Gynaecology, Royal Surrey County Hospital, Surrey, UK
| | - Fleur S. van Dijk
- National EDS Service, London North West University NHS Trust, Harrow, UK
| | - Li Yuan Chan
- Department of Haematology, Royal Surrey County Hospital, Surrey, UK
| | - Edward Walter
- Department of Intensive Care, Royal Surrey County Hospital, Surrey, UK
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Saroa A, Singh A, Jindal N, Kumar R, Singh K, Guleria P, Boopathy R, Kumar V. Nanotechnology-assisted treatment of pharmaceuticals contaminated water. Bioengineered 2023; 14:2260919. [PMID: 37750751 PMCID: PMC10524801 DOI: 10.1080/21655979.2023.2260919] [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: 03/15/2023] [Accepted: 09/13/2023] [Indexed: 09/27/2023] Open
Abstract
The presence of pharmaceutical compounds in wastewater due to an increase in industrialization and urbanization is a serious health concern. The demand for diverse types of pharmaceutical compounds is expected to grow as there is continuous improvement in the global human health standards. Discharge of domestic pharmaceutical personal care products and hospital waste has aggravated the burden on wastewater management. Further, the pharmaceutical water is toxic not only to the aquatic organism but also to terrestrial animals coming in contact directly or indirectly. The pharmaceutical wastes can be removed by adsorption and/or degradation approach. Nanoparticles (NPs), such as 2D layers materials, metal-organic frameworks (MOFs), and carbonaceous nanomaterials are proven to be more efficient for adsorption and/or degradation of pharmaceutical waste. In addition, inclusion of NPs to form various composites leads to improvement in the waste treatment efficacy to a greater extent. Overall, carbonaceous nanocomposites have advantage in the form of being produced from renewable resources and the nanocomposite material is biodegradable either completely or to a great extent. A comprehensive literature survey on the recent advancement of pharmaceutical wastewater is the focus of the present article.
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Affiliation(s)
- Amandeep Saroa
- Department of Chemistry, Sri Guru Teg Bahadur Khalsa College, Sri Anandpur Sahib, India
| | - Amrit Singh
- Department of Physics, Sri Guru Teg Bahadur Khalsa College, Sri Anandpur Sahib, India
| | - Neha Jindal
- Department of Chemistry, DAV College, Bathinda, India
| | - Raj Kumar
- Department of Chemistry, School of Basic and Applied Sciences, Maharaja Agrasen University, Baddi, India
| | | | - Praveen Guleria
- Department of Biotechnology, DAV University, Jalandhar, India
| | - Raj Boopathy
- Department of Biological Sciences, Nicholls State University, Thibodaux, LA, USA
| | - Vineet Kumar
- Department of Biotechnology, School of Bioengineering and Biosciences, Lovely Professional University, Phagwara, Punjab, India
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Chidambaram KS, Muraleedharan M, Keshri A, Mayilvaganan S, Hameed N, Aqib M, Kumar A, Manogaran RS, Kumar R. The Outcomes and Surgical Nuances of Minimally Invasive Parotid Surgery for Pleomorphic Adenoma. Indian J Otolaryngol Head Neck Surg 2023; 75:3256-3262. [PMID: 37974711 PMCID: PMC10645680 DOI: 10.1007/s12070-023-03947-3] [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: 05/10/2023] [Accepted: 06/08/2023] [Indexed: 11/19/2023] Open
Abstract
Benign parotid tumors follow an indolent course and present as slow-growing painless swelling in the pre-and-infra-auricular areas. The treatment of choice is surgery. Though the gold standard technique is Superficial Parotidectomy, Extracapsular Dissection (ECD) is an alternative option with the same outcome and decreased complications. This study discusses our experience with extracapsular dissection and the surgical nuances for better results. A retrospective study of histologically confirmed cases of pleomorphic adenoma of the parotid gland, who underwent Extracapsular dissection between September 2019 and March 2023, was done. The demographic details, clinical characteristics, and outcomes were evaluated. There were 33 patients, including 16 females and 17 males, with a mean age of 32.75 years. All cases presented as slow-growing painless swelling for a mean duration of 5 years. Most of the tumors (94%) were of size between 2 and 4 cm, with few tumors more than 4 cm. All underwent extracapsular dissection with complete excision. There was only one complication (seroma) and no incidence of facial palsy in our experience with ECD. The goal of a benign parotid surgery is the complete removal of the tumor with minimum complications, which could be achieved with ECD, which has good tumor clearance and lesser rates of complications with good cosmesis. Thus, this minimally invasive parotid surgery could be a worthwhile option in properly selected cases.
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Affiliation(s)
| | | | - Amit Keshri
- Neurotology Unit, Department of Neurosurgery, SGPGIMS, Lucknow, UP India
| | | | - Nazrin Hameed
- Neurotology Unit, Department of Neurosurgery, SGPGIMS, Lucknow, UP India
| | - Mohd Aqib
- Neurotology Unit, Department of Neurosurgery, SGPGIMS, Lucknow, UP India
| | - Arushi Kumar
- Department of ENT, Nalanda Medical College, and Hospital, Patna, Bihar India
| | | | - Raj Kumar
- Department of Neurosurgery, SGPGIMS, Lucknow, UP India
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Kumar R, Ciobanu CV, Rathi SJ, Brom JE, Redwing JM, Hunte F. Magnetotransport Signatures of Superconducting Cooper Pairs Carried by Topological Surface States in Bismuth Selenide. Nano Lett 2023; 23:10267-10273. [PMID: 37956090 DOI: 10.1021/acs.nanolett.3c02795] [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] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
As topological insulators (TIs) are becoming increasingly intriguing, the community is exploring transformative applications that require interfacing TIs with other materials such as ferromagnets or superconductors. Herein, we report on the manifestations of superconducting electrons carried by topological surface states (TSS) in Bi2Se3 films. As key signatures of TSS-carried Cooper pairs, we uncover the hysteresis of magnetoresistance (MR) and the switching behavior of anisotropic magnetoresistance (AMR). For in-plane fields perpendicular to the injected current, AMR shows negative switching (resistance drop) when the contacts become superconducting, which is consistent with a cooperative Zeeman effect enabled by the spin-momentum locking of TSS. The MR and AMR behaviors are robust, occurring reliably in multiple samples, from different sources, and with different defect concentrations. Our findings can guide novel developments in superconductor/TI quantum devices relying on supercurrent detection as well as lead to more refined transport signatures of Majorana zero-modes in the future.
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Affiliation(s)
- Raj Kumar
- Department of Materials Science and Engineering, North Carolina State University, Raleigh, North Carolina 27606, United States
| | - Cristian V Ciobanu
- Department of Mechanical Engineering and Materials Science Program, Colorado School of Mines, Golden, Colorado 80401, United States
| | - Somilkumar J Rathi
- Eugenus, Inc., 677 River Oaks Parkway, San Jose, California 95134, United States
- Department of Materials Science and Engineering, University of Central Florida, Orlando, Florida 32816, United States
| | - Joseph E Brom
- Department of Materials Science Program and Engineering, Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Joan M Redwing
- Department of Materials Science Program and Engineering, Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Frank Hunte
- Department of Materials Science and Engineering, North Carolina State University, Raleigh, North Carolina 27606, United States
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Shah K, Ghosh J, Patel S, Chowdhuri MB, Jadeja KA, Shukla G, Macwan T, Kumar A, Dolui S, Singh K, Tanna RL, Patel KM, Dey R, Manchanda R, Ramaiya N, Kumar R, Aich S, Yadava N, Purohit S, Gupta MK, Nagora UC, Pathak SK, Atrey PK, Mayya KBK. Author Correction: Role of pinch in Argon impurity transport in ohmic discharges of Aditya-U Tokamak. Sci Rep 2023; 13:19969. [PMID: 37968383 PMCID: PMC10651834 DOI: 10.1038/s41598-023-47362-8] [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: 11/17/2023] Open
Affiliation(s)
- K Shah
- Department of Physics, Pandit Deendayal Energy University, Raisan, Gandhinagar, 382 007, India.
| | - J Ghosh
- Institute for Plasma Research, Bhat, Gandhinagar, 382 428, India.
- Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai, 400 094, India.
| | - S Patel
- Department of Physics, Pandit Deendayal Energy University, Raisan, Gandhinagar, 382 007, India
| | - M B Chowdhuri
- Institute for Plasma Research, Bhat, Gandhinagar, 382 428, India
| | - K A Jadeja
- Institute for Plasma Research, Bhat, Gandhinagar, 382 428, India
- Department of Nano Science and Advanced Materials, Saurashtra University, Rajkot, 360 005, India
| | - G Shukla
- ITER-India, Institute for Plasma Research, Koteshwar, Ahmedabad, 380 005, India
| | - T Macwan
- University of California, Los Angeles, CA, 90095, USA
| | - A Kumar
- Institute for Plasma Research, Bhat, Gandhinagar, 382 428, India
- Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai, 400 094, India
| | - S Dolui
- Institute for Plasma Research, Bhat, Gandhinagar, 382 428, India
- Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai, 400 094, India
| | - K Singh
- Institute for Plasma Research, Bhat, Gandhinagar, 382 428, India
- Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai, 400 094, India
| | - R L Tanna
- Institute for Plasma Research, Bhat, Gandhinagar, 382 428, India
- Institute of Science, Nirma University, Ahmedabad, 382 481, India
| | - K M Patel
- Institute for Plasma Research, Bhat, Gandhinagar, 382 428, India
| | - R Dey
- Institute for Plasma Research, Bhat, Gandhinagar, 382 428, India
| | - R Manchanda
- Institute for Plasma Research, Bhat, Gandhinagar, 382 428, India
| | - N Ramaiya
- Institute for Plasma Research, Bhat, Gandhinagar, 382 428, India
| | - R Kumar
- Institute for Plasma Research, Bhat, Gandhinagar, 382 428, India
| | - S Aich
- Institute for Plasma Research, Bhat, Gandhinagar, 382 428, India
| | - N Yadava
- Institute of Science, Nirma University, Ahmedabad, 382 481, India
| | - S Purohit
- Institute for Plasma Research, Bhat, Gandhinagar, 382 428, India
| | - M K Gupta
- Institute for Plasma Research, Bhat, Gandhinagar, 382 428, India
| | - U C Nagora
- Institute for Plasma Research, Bhat, Gandhinagar, 382 428, India
- Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai, 400 094, India
| | - S K Pathak
- Institute for Plasma Research, Bhat, Gandhinagar, 382 428, India
- Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai, 400 094, India
| | - P K Atrey
- Institute for Plasma Research, Bhat, Gandhinagar, 382 428, India
| | - K B K Mayya
- Department of Physics, Pandit Deendayal Energy University, Raisan, Gandhinagar, 382 007, India
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Jangid H, Kumar D, Kumar G, Kumar R, Mamidi N. Bibliometric Examination of Global Scientific Research about Carbapenem-Resistant Acinetobacter Baumannii (CRAB). Antibiotics (Basel) 2023; 12:1593. [PMID: 37998795 PMCID: PMC10668794 DOI: 10.3390/antibiotics12111593] [Citation(s) in RCA: 1] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Revised: 10/28/2023] [Accepted: 11/01/2023] [Indexed: 11/25/2023] Open
Abstract
This review paper presents a comprehensive bibliometric analysis of the global scientific research pertaining to carbapenem-resistant Acinetobacter baumannii (CRAB) from the years 1996 to 2023. The review employs a systematic approach to evaluate the trends, patterns, and collaborative networks within the CRAB research landscape, shedding light on its substantial global health implications. An analysis of the Scopus database reveals that the earliest publication within the CRAB research domain dates back to 1996. By conducting a meticulous examination of publication output, citation trends, author affiliations, and keyword distributions, this paper provides valuable insights into the evolution of research themes and the emergence of new areas of interest concerning CRAB. The findings of this bibliometric analysis prominently feature the most influential author within this field, namely, Higgins PG, who has contributed a remarkable 39 documents to CRAB research. It is noteworthy that China leads in terms of the quantity of published research articles in this domain, whereas the United States occupies the foremost position about citations within the CRAB research sphere. Furthermore, a more profound exploration of the data yields a heightened understanding of the current status of CRAB research, emphasizing potential avenues for future investigations and underscoring the imperative need for collaborative initiatives to address the challenges posed by this antibiotic-resistant pathogen.
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Affiliation(s)
- Himanshu Jangid
- Department of Microbiology, School of Bioengineering and Biosciences, Lovely Professional University, Phagwara 144411, India;
| | - Deepak Kumar
- Department of Chemistry, School of Chemical Engineering and Physical Sciences, Lovely Professional University, Phagwara 144411, India;
| | - Gaurav Kumar
- Department of Microbiology, School of Bioengineering and Biosciences, Lovely Professional University, Phagwara 144411, India;
| | - Raj Kumar
- Department of Pharmaceutical Sciences, University of Nebraska Medical Center, Omaha, NE 68105, USA;
| | - Narsimha Mamidi
- Wisconsin Center for NanoBioSystems, School of Pharmacy, University of Wisconsin-Madison, Madison, WI 53705, USA
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Singh B, Mishra S, Kumar R, Patel J D, Malathi H, Kumar B. IMPLICATION OF THREAT FACTORS AND PREEXISTING DISORDERS IN DIFFERENT ISCHEMIC STROKE SUBGROUPS IN ELDERLY PEOPLE: A SYSTEMATIC STUDY. Georgian Med News 2023:43-46. [PMID: 38236097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/19/2024]
Abstract
Ischemic stroke is a major health issue, especially for the older population and it may have severe effects. Stroke diagnosis and treatment have advanced over the last 20 years, which has resulted in considerable reductions in death, long-term impairment, and the need for institutional care. Younger age groups have seen the majority of trials for acute, interventional, and preventive therapy. The purpose of this research was to identify distinct subgroups of older people who had suffered an ischemic stroke and examine the role that risk factors and previous illnesses played in their development. Ischemic stroke risk factors varied by age, gender and exhibited their own unique features. Smoking, cholesterol, and psychological/emotional stress were shown to have the greatest prevalence (p<0.06) among stroke patients aged 45-60. Smoking is associated with a significant (p<0.07) decline in health in elderly people. Our results imply that there are significant patterns of risk factors and preexisting illnesses among the various subgroups of older people who have had an ischemic stroke. Atherosclerotic (large-artery) and cardio embolic (small-artery) ischemic strokes were shown to be the most prevalent among the elderly. Strong associations were found between these subtypes and other risk factors, including higher cholesterol, diabetes, high blood pressure, and atrial fibrillation. This research emphasizes the need for individualized preventative methods and therapeutic therapy, as well as the need to recognize the variability of ischemic stroke in the elderly.
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Affiliation(s)
- B Singh
- 1Department of Pharmacy, Vivekananda Global University, Jaipur, India
| | - S Mishra
- 2Department of General Medicine, TMMC&RC, Teerthanker Mahaveer University, Moradabad, Uttar Pradesh, India
| | - R Kumar
- 3Department of Pharmacy, Noida Institute of Engineering and Technology (Pharmacy Institute), Uttar Pradesh, India
| | - D Patel J
- 4Department of Pharmacology, Parul University, PO Limda, Tal. Waghodia, District Vadodara, Gujarat, India
| | - H Malathi
- 5Department of Life Sciences, School of Sciences, JAIN (Deemed-to-be University), Karnataka, India
| | - B Kumar
- 6School of Pharmacy & Research, Dev Bhoomi Uttarakhand University, Dehradun, India
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Panda S, Nath A, Thakar A, Kumar R, Seenu V, Sikka K, Singh CA, Kumar R. In-vivo lymphoscintigraphy of sinonasal tumors identifies retropharyngeal node and level I as predominant sentinel nodes. Rev Esp Med Nucl Imagen Mol 2023; 42:374-379. [PMID: 37399973 DOI: 10.1016/j.remnie.2023.06.007] [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: 05/08/2023] [Revised: 06/22/2023] [Accepted: 06/23/2023] [Indexed: 07/05/2023]
Abstract
OBJECTIVE To evaluate by in- vivo lymphoscintigraphy and SPECT-CT imaging, the lymphatic drainage patterns of para-nasal sinus(PNS) tumors. To confirm or refute the belief of the retropharyngeal lymph node (RPLN) being the significant draining lymph node for such tumors. METHODS Prospective cohort study conducted on previously untreated PNS tumors with no clinico-radiological evidence of lymph node metastasis. Lymphoscintigraphy undertaken by nasal endoscopic assisted peritumoral injection of 99mTc Sulfur colloid. Injections were classified as anterior or posterior as per a vertical line along the maxillary sinus ostium. RESULTS 17 patients were included. Lymphoscintigraphy successfully identified 17 sentinel nodes in 15 patients and was unsuccessful (lymphoscintigraphy failure) in 2 patients. Predominant sites of sentinel lymphatic drainage were noted to be the RPLN (n = 8; 47%), and Level I (n = 7; 42%). Occasional drainage was identified at the peri-parotid node(n = 1) and at Level II (n = 1). Contralateral drainage was noted in 2 patients (level I-1 and RPLN-1). Anterior injections drained predominantly to Level I (6/8) and RPLN (2/8), while posterior injections drained predominantly to the RPLN ( 6/7). The relative risk of RPLN being identified as the sentinel node was significantly higher for posteriorly placed injections than for anteriorly placed injections (RR- 3.43; 95% CI-1.0-11.8, p = 0.05). CONCLUSION The RPLN is noted as a frequent draining node for sino-nasal tumours and merits routine attention in all sino-nasal tumors. The radio-colloid SPECT-CT technique described here offers an excellent in-vivo technique to further explore and validate the lymphatic drainage pathways of these tumours.
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Affiliation(s)
- S Panda
- Department of Otorhinolaryngology, Head, Neck Surgery, All India Institute of Medical Sciences, New Delhi, India
| | - A Nath
- Department of Plastic Surgery, Himalayan Institute of Medical Sciences, Dehradun, India
| | - A Thakar
- Department of Otorhinolaryngology and Head and Neck Surgery, All India Institute of Medical Sciences, New Delhi, India.
| | - R Kumar
- Department of Nuclear Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - V Seenu
- Department of Surgical Discipline, All India Institute of Medical Sciences, New Delhi, India
| | - K Sikka
- Department of Otorhinolaryngology and Head and Neck Surgery, All India Institute of Medical Sciences, New Delhi, India
| | - C A Singh
- Department of Otorhinolaryngology and Head and Neck Surgery, All India Institute of Medical Sciences, New Delhi, India
| | - R Kumar
- Department of Otorhinolaryngology and Head and Neck Surgery, All India Institute of Medical Sciences, New Delhi, India
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Singh G, Kumar Verma P, Kumar Srivastava A, Kanti Das K, Mehrotra A, Dikshit P, Kumar A, Kanjilal S, Prakash Maurya V, Singh Bhaisora K, Singh S, Jaiswal S, Kumar Jaiswal A, Mishra P, Behari S, Kumar R. Factors predicting seizure outcome after surgical excision of meningioma: SOLID-C guideline for prophylactic AED. J Clin Neurosci 2023; 117:143-150. [PMID: 37804675 DOI: 10.1016/j.jocn.2023.09.022] [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: 06/11/2023] [Revised: 08/25/2023] [Accepted: 09/25/2023] [Indexed: 10/09/2023]
Abstract
BACKGROUND Seizures are commonly seen among meningioma patients and may cause impaired quality of life. These patients can be effectively treated with surgery. Still, many patients have persistent seizure episodes after surgery. The factors which are associated with worsening of seizure episodes remain critical in improving the quality of life for such patients. In this study, we aim to analyze the clinical and histopathological factors to predict the post excision seizure-outcome in meningioma and need of antiepileptic prophylaxis for these patients. METHODS Adult patients who underwent primary resection of meningioma at our institute between 2007 and 2020 were included in the study. Eligibility criteria were as follows: (i) Surgery for newly-diagnosed biopsy proven meningioma, (ii) Presence of pre-operative seizure (iii) A follow-up period ≥ 12 months. RESULTS Of the 1145 patients in this series, 333 patients were recruited in study. The major determinants of prophylactic anti-epileptic were tumour size (S), Oedema (O), location (L), inclusion body (I), antiepileptic drugs (D) and surgical complication (C). The factors independently associated with poor seizure control after surgical resection were presence of brain parenchyma invasion (p < 0.001), pre-operative use of > 2 antiepileptics (p = 0.016) and presence of intranuclear inclusion bodies (p = 0.001). CONCLUSIONS The identification and consideration of factors associated with prolonged seizure control after surgery may help us to guide treatment strategies aimed at improving the quality of life for patients with meningiomas. Authors have proposed a SOLID-C guideline to avoid the blanket approach of prophylactic AED in patients undergoing for meningioma resection.
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Affiliation(s)
- Guramritpal Singh
- Department of Neurosurgery, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow 226014, India
| | - Pawan Kumar Verma
- Department of Neurosurgery, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow 226014, India.
| | - Arun Kumar Srivastava
- Department of Neurosurgery, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow 226014, India
| | - Kuntal Kanti Das
- Department of Neurosurgery, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow 226014, India
| | - Anant Mehrotra
- Department of Neurosurgery, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow 226014, India
| | - Priyadarshi Dikshit
- Department of Neurosurgery, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow 226014, India
| | - Ashutosh Kumar
- Department of Neurosurgery, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow 226014, India
| | - Soumen Kanjilal
- Department of Neurosurgery, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow 226014, India
| | - Ved Prakash Maurya
- Department of Neurosurgery, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow 226014, India
| | - Kamlesh Singh Bhaisora
- Department of Neurosurgery, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow 226014, India
| | - Suyash Singh
- Department of Neurosurgery, AIIMS Raebareli, India
| | - Sushila Jaiswal
- Department of Pathology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow 226014, India
| | - Awadhesh Kumar Jaiswal
- Department of Neurosurgery, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow 226014, India
| | - Prabhaker Mishra
- Department of Biostatistics and Health Informatics, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow 226014, India
| | - Sanjay Behari
- Department of Neurosurgery, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow 226014, India
| | - Raj Kumar
- Department of Neurosurgery, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow 226014, India
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Sharma A, Kumar R, Borthakur D. Clinical Relevance of Sternal Foramina: A Morphometric Study. Clin Ter 2023; 174:503-508. [PMID: 38048113 DOI: 10.7417/ct.2023.5017] [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] [Subscribe] [Scholar Register] [Indexed: 12/05/2023]
Abstract
Objectives The present study aimed at determining the incidence of sternal foramina in adult dry bones of North Indian descent. We also aimed to determine the number, precise location of the sternal foramina with a standard reference point which might have considerable importance with regard to procedures involving sternal puncture. Methods This cross sectional descriptive study was conducted on 72 dry adult human sternums. Various measurements in relation to the sternal foramina were taken with a non-stretchable measuring tape and digital vernier calliper and expressed as: [A]-total sternal length, [B]-distance between the jugular notches to the foramen, [C]-distance between the angle of Louis to the foramen and [D]-distance of the foramen from the mid sternal plane. Statistical analysis was performed with Microsoft Excel version 2019. A p-value of <0.05 was considered significant. Results We found 6.94% (5 out of 72 sternums) incidence of sternal foramina which corroborates well with the existing literature. Mean sternal length was 127.7 ± 09 mm. The mean distance of the foramina from suprasternal notch, sternal angle and from the median plane were 118.12 ± 0.3 mm, 116.7 mm and 2.4 mm respectively. Incidence of sternal foramina was almost similar to previously reported studies. Conclusions The precise knowledge about the expected location of sternal foramina is imperative to avoid intra-thoracic visceral injury during commonly performed acupuncture needle insertion and while doing bone marrow aspiration for diagnostic evaluation.
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Affiliation(s)
- A Sharma
- Department of Anatomy, Nagaland Institute of Medical Sciences and Research (NIMSR), Kohima, India
| | - R Kumar
- Department of Anatomy, All India Institute of Medical Sciences, Patna, India
| | - D Borthakur
- Department of Anatomy, All India Institute of Medical Sciences, New Delhi, India
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Xiong Y, Gu J, Kumar R. Collision in double-image encryption scheme based on spatial encoding and phase-truncation Fourier transforms. Appl Opt 2023; 62:8416-8425. [PMID: 38037947 DOI: 10.1364/ao.501672] [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] [Received: 07/26/2023] [Accepted: 10/10/2023] [Indexed: 12/02/2023]
Abstract
In this paper, the security strength of a double-image cryptosystem using spatial encoding and phase-truncation Fourier transforms (PTFTs) is evaluated. Unlike the conventional PTFT-based cryptosystem, where two random phase masks (RPMs) are used as public keys to provide enough phase constrains in the estimation, in the improved cryptosystem, the RPM generated by a random amplitude mask (RAM) is treated as an unknown parameter. Due to this fixed RAM, the number of constraints in the estimation decreases to achieve high robustness against potential iterative attacks. Moreover, instead of two phase-only masks (POMs), here the two POMs and the RAM are utilized as the private keys in the improved cryptosystem; thus, the key space of the double-image cryptosystem has been enlarged. However, we noticed that the RAM used to encode plaintexts spatially and to generate the phase encryption key is independent of the plaintexts. This could be recovered by a known pair of plaintexts and the ciphertext. Once the information of the RAM is retrieved, the phase key RPM can also be produced making the cryptosystem vulnerable. Based on this finding, new hybrid algorithms, including a known-plaintext attack and a known key attack are proposed to crack the enhanced PTFT-based cryptosystem. The information of the plaintexts can be retrieved from one POM using the proposed algorithms without any knowledge of another POM and the corresponding ciphertext. Numerical simulations have been carried out to validate the information disclosure problem still exists in the double-image cryptosystem based on spatial encoding and PTFTs.
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