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Ahmad F, Sachdeva P, Sachdeva B, Singh G, Soni H, Tandon S, Rafeeq MM, Alam MZ, Baeissa HM, Khalid M. Dioxinodehydroeckol: A Potential Neuroprotective Marine Compound Identified by In Silico Screening for the Treatment and Management of Multiple Brain Disorders. Mol Biotechnol 2024; 66:663-686. [PMID: 36513873 DOI: 10.1007/s12033-022-00629-3] [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: 06/07/2022] [Accepted: 11/28/2022] [Indexed: 12/15/2022]
Abstract
Neurodegenerative disorders such as Alzheimer's disease (AD), Glioblastoma multiforme (GBM), Amyotrophic lateral sclerosis (ALS), and Parkinson's disease (PD) are some of the most prevalent neurodegenerative disorders in humans. Even after a variety of advanced therapies, prognosis of all these disorders is not favorable, with survival rates of 14-20 months only. To further improve the prognosis of these disorders, it is imperative to discover new compounds which will target effector proteins involved in these disorders. In this study, we have focused on in silico screening of marine compounds against multiple target proteins involved in AD, GBM, ALS, and PD. Fifty marine-origin compounds were selected from literature, out of which, thirty compounds passed ADMET parameters. Ligand docking was performed after ADMET analysis for AD, GBM, ALS, and PD-associated proteins in which four protein targets Keap1, Ephrin A2, JAK3 Kinase domain, and METTL3-METTL14 N6-methyladenosine methyltransferase (MTA70) were found to be binding strongly with the screened compound Dioxinodehydroeckol (DHE). Molecular dynamics simulations were performed at 100 ns with triplicate runs to validate the docking score and assess the dynamics of DHE interactions with each target protein. The results indicated Dioxinodehydroeckol, a novel marine compound, to be a putative inhibitor among all the screened molecules, which might be effective against multiple target proteins involved in neurological disorders, requiring further in vitro and in vivo validations.
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Affiliation(s)
- Faizan Ahmad
- Department of Medical Elementology and Toxicology, Jamia Hamdard University, Delhi, India.
| | - Punya Sachdeva
- Amity Institute of Neuropsychology and Neurosciences, Amity University, Noida, Uttar Pradesh, India
| | - Bhuvi Sachdeva
- Department of Physics and Astrophysics, University of Delhi, Delhi, India
| | - Gagandeep Singh
- Section of Microbiology, Central Ayurveda Research Institute, CCRAS, Ministry of AYUSH, Jhansi, India
- Kusuma School of Biological Sciences, India Institute of Technology, Delhi, India
| | - Hemant Soni
- Section of Microbiology, Central Ayurveda Research Institute, CCRAS, Ministry of AYUSH, Jhansi, India
| | - Smriti Tandon
- Section of Microbiology, Central Ayurveda Research Institute, CCRAS, Ministry of AYUSH, Jhansi, India
| | - Misbahuddin M Rafeeq
- Department of Pharmacology, Faculty of Medicine, Rabigh, King Abdulaziz University, Jeddah, 21589, Kingdom of Saudi Arabia
| | - Mohammad Zubair Alam
- Pre-Clinical Research Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia
- Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Hanadi M Baeissa
- Department of Biochemistry, College of Science, University of Jeddah, Jeddah, Saudi Arabia
| | - Mohammad Khalid
- Department of Pharmacognosy, College of Pharmacy, Prince Sattam Bin Abdulaziz University, P.O. Box 173, Al-Kharj, 11942, Saudi Arabia
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Gandhi MY, Prasad SB, Kumar V, Soni H, Rawat H, Mishra SK, Grewal J, Singh S, Charde V, Gupta A, Jha SK, Singh G, Tandon S, Mrkute A, Ramamurthy PC, Narasimhaji CV, Singh A, Singh R, Srikanth N, Acharya R, Webster TJ. Quantification of Phytochemicals and Metal Ions as well as the Determination of Volatile Compounds, Antioxidant, Antimicrobial and Antacid Activities of the Mimosa pudica L. Leaf: Exploration of Neglected and Under-Utilized Part. Chem Biodivers 2023; 20:e202301049. [PMID: 37728228 DOI: 10.1002/cbdv.202301049] [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: 07/18/2023] [Accepted: 09/01/2023] [Indexed: 09/21/2023]
Abstract
Mimosa pudica L. (MP) is well-known plant in traditional medicinal system, especially in India. Unfortunately, leaves of MP are less explored. To determine the food and nutritional value of the neglected part of Mimosa pudica L. (MP), that is MP leaves, phytochemicals and metal ions of MP were quantified by newly developed HPLC and ICPOES-based methods. The content of phytochemicals observed using HPLC analysis for chlorogenic acid, catechin, and epicatechin was 141.823 (±8.171), 666.621 (±11.432), and 293.175 (±12.743) μg/g, respectively. Using GC/MS/MS analysis, fatty acid like oleic acid were identified. In ICP-OES analysis, a significant content of Na, K, Ca, Cu, Fe, Mg, Mn, and Zn was observed. The observed TPC and TFC for MP leaf extracts was 44.327 (±1.041) mg GAE/ g of wt. and 214.217 (±4.372) mg QCE/ g of wt., respectively. The DPPH assay depicted a strong antioxidant activity of MP leaf extracts with IC50 values of 0.796 (±0.081) mg/mL and a TEAC value of 0.0356 (±0.0003). A significant antacid activity (666 mg MP+400 mg CaCO3 >400 mg CaCO3 ≫666 mg Gelusil) of MP leaves was noticed. The methanolic extract of MP leaves demonstrated anti-microbial activity against Staphylococcus aureus (15±2mm), Pseudomonas aeruginosa (12±2mm) and Escherichia coli (10±2mm). In silico studies confirmed the in vitro results obtained for antioxidant, antiacid, and anti-microbial activities. In addition, in silico studies revealed the anti-cancerous and anti-inflammatory potential of the MP leaves. In summary, this study demonstrated the medicinal significance of MP leaves and the conversion of agro-waste or the under-utilized part of MP into pharmaceutical potent materials. Consequently, the present study highlighted that MP leaves alone have medicinal importance with good nutritional utility and possess large promise in the pharma industry along with improving bio-valorization and the environment.
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Affiliation(s)
- Ms Yashika Gandhi
- Central Ayurveda Research Institute, Jhansi, Uttar Pradesh, 284003, India
| | - Shyam Baboo Prasad
- Central Ayurveda Research Institute, Jhansi, Uttar Pradesh, 284003, India
| | - Vijay Kumar
- Central Ayurveda Research Institute, Jhansi, Uttar Pradesh, 284003, India
| | - Hemant Soni
- Central Ayurveda Research Institute, Jhansi, Uttar Pradesh, 284003, India
| | - Hemant Rawat
- Central Ayurveda Research Institute, Jhansi, Uttar Pradesh, 284003, India
| | - Sujeet K Mishra
- Central Ayurveda Research Institute, Jhansi, Uttar Pradesh, 284003, India
| | - Jyotika Grewal
- Central Ayurveda Research Institute, Jhansi, Uttar Pradesh, 284003, India
| | | | - Vaibhav Charde
- Central Ayurveda Research Institute, Jhansi, Uttar Pradesh, 284003, India
| | - Akhil Gupta
- Central Ayurveda Research Institute, Jhansi, Uttar Pradesh, 284003, India
| | | | - Gagandeep Singh
- Central Ayurveda Research Institute, Jhansi, Uttar Pradesh, 284003, India
| | - Smriti Tandon
- Central Ayurveda Research Institute, Jhansi, Uttar Pradesh, 284003, India
| | - Akshada Mrkute
- Indira College Of Pharmacy Nanded, Maharashtra, 431606, India
| | | | | | - Arjun Singh
- Central Council for Research in Ayurvedic Sciences, New Delhi, 110058, India
| | - Ravindra Singh
- Central Council for Research in Ayurvedic Sciences, New Delhi, 110058, India
| | - Narayan Srikanth
- Central Council for Research in Ayurvedic Sciences, New Delhi, 110058, India
| | - Rabinarayan Acharya
- Central Council for Research in Ayurvedic Sciences, New Delhi, 110058, India
| | - Thomas J Webster
- School of Health Sciences and Biomedical Engineering, Hebei University of Technology, Tianjin, China
- School of Engineering, Saveetha University, Chennai, India
- Program in Materials Science, UFPI, Teresina, Brazil
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3
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Tandon S, Puri M, Bharath Y, Choudhury UM, Mohapatra DK, Muthuswami R, Madhubala R. In vitro screening of natural product-based compounds for leishmanicidal activity. J Parasit Dis 2023; 47:644-658. [PMID: 37520198 PMCID: PMC10382454 DOI: 10.1007/s12639-023-01605-7] [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: 02/22/2023] [Accepted: 05/26/2023] [Indexed: 08/01/2023] Open
Abstract
Leishmaniasis is one of the major parasitic diseases, caused by obligate intracellular protozoa Leishmania, having high mortality as well as morbidity rate. As there is no human licensed vaccine available against leishmaniasis, chemotherapy remains the major way of combating this disease. Many disadvantages are known to be associated with the current drug regime including severe side effects and toxicity, long duration and expensive treatment, and the emergence of resistance. An alternative approach is being utilized to search for active molecules using natural sources, rather than relying on synthetic drugs. Many plant-derived secondary metabolites like phenolic compounds, steroids, quinones, etc. are being extensively investigated for their anti-leishmanial potential. One such group of complex phenolic compounds are diarylheptanoids. These compounds have been shown to exhibit anti-inflammatory, anti-parasitic, anti-fungal, and other pharmacological activities. In the present study, a set of sixteen tetrahydropyran derivatives including three natural products were obtained in lyophilized form. These compounds with trans-2,6-disubstituted tetrahydropyrans, Diospongin A, Diospongin B (isolated from Dioscorea spongiosa) and Centrolobine (Centrolobium sclerophyllum) as parent compounds were synthesized by the reaction of 1-phenyl-1-triemthylsiloxyethylene with six-membered cyclic hemiacetals in the presence of iodine as a catalyst. All the sixteen synthesized tetrahydropyran derivatives were used for toxicity analysis against L. donovani promastigotes, amastigotes and THP-1-derived human macrophages. IC50 values and selectivity index were calculated for all the compounds. Out of these sixteen, five compounds showed the best effect in vitro in terms of both leishmanicidal activity and non-toxicity to human macrophages.
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Affiliation(s)
- Smriti Tandon
- School of Life Sciences, Jawaharlal Nehru University, New Delhi, India
- CCRAS-Central Ayurveda Research Institute, Jhansi, India
| | - Madhu Puri
- School of Life Sciences, Jawaharlal Nehru University, New Delhi, India
| | - Yada Bharath
- CSIR-Indian Institute of Chemical Technology, Hyderabad, India
| | | | | | - Rohini Muthuswami
- Chromatin Remodelling Laboratory, School of Life Sciences, Jawaharlal Nehru University, New Delhi, India
| | - Rentala Madhubala
- School of Life Sciences, Jawaharlal Nehru University, New Delhi, India
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Singh G, Al-Fahad D, Al-Zrkani MK, Chaudhuri TK, Soni H, Tandon S, Narasimhaji CV, Azam F, Patil R. Identification of potential inhibitors of HER2 targeting breast cancer-a structure-based drug design approach. J Biomol Struct Dyn 2023:1-18. [PMID: 37565730 DOI: 10.1080/07391102.2023.2246576] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/12/2023]
Abstract
Breast cancer is one of the most prevalent and malignant cancers in women. Most breast cancer patients show overexpression of the HER2 protein. The current study focused on identifying potent inhibitors of HER2 using a structure-based drug design approach. Prefiltered compounds from the Drugbank and the ZINC database were docked on HER2 protein using the FlexX docking tool of LeadIT. The docking study identified the 12 best molecules that interacted strongly with the active site of HER2 and also fulfilled the ADMET parameters. The complexes of these compounds with HER2 were further subjected to molecular dynamics simulation using GROMACS 2021.4, followed by the end-state MMGBSA binding energy calculations. The RMSD analysis was conducted to study the conformational changes, which revealed stability throughout the 100 ns simulation period. The local flexibility and dynamics of the simulated ligand-protein complexes were studied using RMSF analysis. The values of the radius of gyration were computed to analyze the compactness of HER2. The MMGBSA analysis provided insights into the energetic aspects of the system. The compound DB15187 emerged as the most potent candidate, showing MMGBSA-computed binding energy of -63.60 ± 3.39 kcal/mol. The study could help develop targeted therapies for HER2-positive breast cancer.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Gagandeep Singh
- Section of Microbiology and Chemistry, Central Ayurveda Research Institute Jhansi, CCRAS, Ministry of Ayush, India
- Kusuma School of Biological Sciences, Indian Institute of Technology Delhi, New Delhi, India
| | - Dhurgham Al-Fahad
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Thi-Qar, Nasiriyah, Iraq
| | - Mrtatha K Al-Zrkani
- Department of Animal Production, College of Agriculture, Wasit University, Wasit, Iraq
| | - Tapan K Chaudhuri
- Kusuma School of Biological Sciences, Indian Institute of Technology Delhi, New Delhi, India
| | - Hemant Soni
- Section of Microbiology and Chemistry, Central Ayurveda Research Institute Jhansi, CCRAS, Ministry of Ayush, India
| | - Smriti Tandon
- Section of Microbiology and Chemistry, Central Ayurveda Research Institute Jhansi, CCRAS, Ministry of Ayush, India
| | | | - Faizul Azam
- Department of Pharmaceutical Chemistry and Pharmacognosy, Unaizah College of Pharmacy, Qassim University, Buraydah, Saudi Arabia
| | - Rajesh Patil
- Department of Pharmaceutical Chemistry, Sinhgad Technical Education Society's, Sinhgad College of Pharmacy, Pune, India
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Punchihewa N, Tandon S, Poon F, Pawlowski R, Chan Y, Mar A. Athena: Speciality Certificate Examination case for general dermatology and dermatology in primary health care. Clin Exp Dermatol 2023; 48:815-816. [PMID: 36994884 DOI: 10.1093/ced/llad121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 03/02/2023] [Accepted: 03/25/2023] [Indexed: 03/31/2023]
Abstract
This Athena case describes possible differential diagnoses in a 76-year-old woman who presented with an 8-month history of multiple painful ulcers on her lower abdominal wall and right anterior thigh.
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Affiliation(s)
- Nisal Punchihewa
- Departments of Dermatology
- Faculty of Medicine, Dentistry and Health Sciences, The University of Melbourne, Parkville, VIC, Australia
| | | | | | - Rhonda Pawlowski
- Anatomical Pathology, Monash Medical Centre, Melbourne, VIC, Australia
| | - Yuen Chan
- Anatomical Pathology, Monash Medical Centre, Melbourne, VIC, Australia
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Tandon S, Stefanolo JP, Russell L, Paz Temprano MDL, Niveloni S, Verdu E, Armstrong D, Lebwohl B, Leffler D, Tye-Din J, Day A, Olano C, Lopez V, Uzcanga L, Madaria E, Montoro Huguet M, Vivas S, Rodriguez-Herrera A, Makharia G, Sanders D, Zeitz J, Mulder C, Ciacci C, Valerio F, Pinto-Sanchez MI. A13 THE RATE OF ADVERSE EVENTS AFTER COVID-19 VACCINATION IS SIMILAR IN PATIENTS WITH CELIAC DISEASE AND NON-CELIAC POPULATION: RESULTS OF A LARGE INTERNATIONAL CROSS-SECTIONAL STUDY. J Can Assoc Gastroenterol 2023. [PMCID: PMC9991115 DOI: 10.1093/jcag/gwac036.013] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/09/2023] Open
Abstract
Background Patients with celiac disease (CeD) reported increased COVID-19 vaccine hesitancy due to a fear of adverse events (AEs). However, the risk of AEs post-COVID-19 vaccination in patients with CeD is unknown. Purpose To assess whether the rate of common side effects (SEs) and AEs due to COVID vaccines are higher in patients with CeD compared to a non-CeD population. Method We conducted a collaborative international cross-sectional study in 16 countries between April 2022 and July 2022. An online survey was distributed to patients with CeD through patients’ local societies, and to non-CeD from the general population in each country through social media posts, word-of-mouth, and through academic institutions. We collected data on participant demographics, medical conditions, CeD diagnosis, GFD adherence, history of COVID-19 vaccinations (type and doses) and self-reported SEs and AEs post-COVID-19 vaccine. SEs included pain/swelling at the site, fatigue, fever, chills, nausea and/or headaches. AEs included thrombosis, myocarditis, anaphylactic reaction, and hospitalization related to the vaccine. Logistic regression models were used to assess predictors such as CeD diagnosis, age, gender, vaccine type and comorbidities on the likelihood of reporting SEs and AEs post-vaccine. Result(s) : A total of 17,795 participants completed the survey, 13,638 with CeD (median age of 45[27]) and 4,157 non-CeD controls (median age of 43[20]). There were no significant differences in sex between CeD and controls. Overall, CeD patients had similar odds of SEs compared with non-CeD individuals (aOR=1.02;95% CI=0.92-1.14). SEs were slightly increased only in the second dose of the vaccine in the CeD population compared to non-CeD individuals (aOR= 1.35; 95% CI=1.19-1.53). The most common reported SEs in CeD and controls were pain/swelling at the injection site (29% vs 23 %, p< 0.0001) and fatigue (29% vs 24%, p<0.0001). The odds of SEs were higher with Moderna Spikevax, AstraZeneca/Oxford and Johnson and Johnson vaccines than after the Pfizer vaccine (p< 0.0001). The overall rate of AEs post-vaccine was similar between patients with CeD and non-CeD individuals (aOR= 1.29; 95% CI= 0.89-1.87). Overall, female gender, older age, GFD adherence, respiratory conditions, obesity and receiving immunosuppressive medications increased the odds of SEs, while only age and a history of allergies increased the odds of AEs. Conclusion(s) In this large international study, patients with CeD reported similar rates of SEs and AEs post-COVID vaccine compared to non-CeD individuals. This information is highly relevant as it addresses the main concern leading to COVID-19 vaccine hesitancy in CeD patients. Disclosure of Interest None Declared
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Affiliation(s)
- S Tandon
- Health Sciences, McMaster University, Hamilton, Canada
| | | | - L Russell
- Medicine, McMaster University, Hamilton, Canada
| | | | - S Niveloni
- Hospital B Udaondo, Buenos Aires, Argentina
| | - E Verdu
- Medicine, McMaster University, Hamilton, Canada
| | - D Armstrong
- Medicine, McMaster University, Hamilton, Canada
| | | | - D Leffler
- Gastroenterology, Harvard University, Boston, United States
| | - J Tye-Din
- Immunology, Melbourne University, Melbourne, Australia
| | - A Day
- Paediatric Research, University of Otago, Christchurch, New Zealand
| | - C Olano
- Universidad de la Republica, Montevideo, Uruguay
| | - V Lopez
- Universidad de la Republica, Montevideo, Uruguay
| | - L Uzcanga
- Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
| | - E Madaria
- Hospital General Universitario de Alicante, Alicante
| | | | - S Vivas
- Universidad de Leon, Leon, Spain
| | | | - G Makharia
- All India Institute of Medical Sciences, New Delhi, India
| | - D Sanders
- Infection, Immunity and Cardiovascular Disease, The University of Sheffield, Sheffield, United Kingdom
| | - J Zeitz
- Hirslanden Group, Zurich, Switzerland
| | - C Mulder
- Amsterdam UMC, Amsterdam, Netherlands
| | - C Ciacci
- Medicine and Surgery, Università degli Studi di Salerno, Baronissi, Italy
| | - F Valerio
- Albert Einstein Hospital Israelita, Sao Luiz, Hospital Sirio Libanes, Sao Paulo, Brazil
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Karamanos A, Lu Y, Mudway IS, Ayis S, Kelly FJ, Beevers SD, Dajnak D, Fecht D, Elia C, Tandon S, Webb AJ, Grande AJ, Molaodi OR, Maynard MJ, Cruickshank JK, Harding S. Associations between air pollutants and blood pressure in an ethnically diverse cohort of adolescents in London, England. PLoS One 2023; 18:e0279719. [PMID: 36753491 PMCID: PMC9907839 DOI: 10.1371/journal.pone.0279719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 12/13/2022] [Indexed: 02/09/2023] Open
Abstract
Longitudinal evidence on the association between air pollution and blood pressure (BP) in adolescence is scarce. We explored this association in an ethnically diverse cohort of schoolchildren. Sex-stratified, linear random-effects modelling was used to examine how modelled residential exposure to annual average nitrogen dioxide (NO2), particulate matter (PM2.5, PM10) and ozone (O3), measures in μg/m3, associated with blood pressure. Estimates were based on 3,284 adolescents; 80% from ethnic minority groups, recruited from 51 schools, and followed up from 11-13 to 14-16 years old. Ethnic minorities were exposed to higher modelled annual average concentrations of pollution at residential postcode level than their White UK peers. A two-pollutant model (NO2 & PM2.5), adjusted for ethnicity, age, anthropometry, and pubertal status, highlighted associations with systolic, but not diastolic BP. A μg/m3 increase in NO2 was associated with a 0.30 mmHg (95% CI 0.18 to 0.40) decrease in systolic BP for girls and 0.19 mmHg (95% CI 0.07 to 0.31) decrease in systolic BP for boys. In contrast, a 1 μg/m3 increase in PM2.5 was associated with 1.34 mmHg (95% CI 0.85 to 1.82) increase in systolic BP for girls and 0.57 mmHg (95% CI 0.04 to 1.03) increase in systolic BP for boys. Associations did not vary by ethnicity, body size or socio-economic advantage. Associations were robust to adjustments for noise levels and lung function at 11-13 years. In summary, higher ambient levels of NO2 were associated with lower and PM2.5 with higher systolic BP across adolescence, with stronger associations for girls.
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Affiliation(s)
- A. Karamanos
- School of Life Course/Nutritional Sciences, King’s College London, London, United Kingdom
| | - Y. Lu
- School of Life Course/Nutritional Sciences, King’s College London, London, United Kingdom
- Clinical Research Center of The Third Xiangya Hospital, Central South University, Changsha, China
| | - I. S. Mudway
- MRC Centre for Environment and Health, School of Public Health, Imperial College London, London, United Kingdom
- NIHR Health Protection Research Unit in Environmental Exposures and Health, Imperial College London, London, United Kingdom
| | - S. Ayis
- Faculty of Life Sciences & Medicine, Department of Population Health Sciences, School of Population Health & Environmental Sciences, King’s College London, London, United Kingdom
| | - F. J. Kelly
- MRC Centre for Environment and Health, School of Public Health, Imperial College London, London, United Kingdom
- NIHR Health Protection Research Unit in Environmental Exposures and Health, Imperial College London, London, United Kingdom
| | - S. D. Beevers
- MRC Centre for Environment and Health, School of Public Health, Imperial College London, London, United Kingdom
- NIHR Health Protection Research Unit in Environmental Exposures and Health, Imperial College London, London, United Kingdom
| | - D. Dajnak
- MRC Centre for Environment and Health, School of Public Health, Imperial College London, London, United Kingdom
- NIHR Health Protection Research Unit in Environmental Exposures and Health, Imperial College London, London, United Kingdom
| | - D. Fecht
- MRC Centre for Environment and Health, School of Public Health, Imperial College London, London, United Kingdom
- NIHR Health Protection Research Unit in Environmental Exposures and Health, Imperial College London, London, United Kingdom
| | - C. Elia
- School of Life Course/Nutritional Sciences, King’s College London, London, United Kingdom
| | - S. Tandon
- Faculty of Life Sciences & Medicine, Department of Population Health Sciences, School of Population Health & Environmental Sciences, King’s College London, London, United Kingdom
| | - A. J. Webb
- Faculty of Life Sciences & Medicine, Department of Clinical Pharmacology, King’s College London BHF Centre of Excellence, School of Cardiovascular Medicine and Sciences, King’s College, London, United Kingdom
| | - A. J. Grande
- Curso de Medicina, Universidade Estadual do Mato Grosso do Sul, Campo Grande, MS, Brazil
| | - O. R. Molaodi
- MRC/CSO Social and Public Health Sciences Unit, Institute of Health and Wellbeing, University of Glasgow, Glasgow, Scotland
| | - M. J. Maynard
- School of Clinical & Applied Sciences, Leeds Beckett University, Leeds, United Kingdom
| | - J. K. Cruickshank
- School of Life Course/Nutritional Sciences, King’s College London, London, United Kingdom
| | - S. Harding
- School of Life Course/Nutritional Sciences, King’s College London, London, United Kingdom
- Faculty of Life Sciences & Medicine, Department of Population Health Sciences, School of Population Health & Environmental Sciences, King’s College London, London, United Kingdom
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Dey S, Anne S, Rath S, Nandhana R, Gulia S, Menon S, Rekhi B, Tandon S, Sable N, Baheti A, Popat P, Lavanya G. N, Jadhav S, Chopra S, Shylasree T, Deodhar K, Maheshwari A, Ghosh J, Gupta S. 67P Survival and reproductive outcomes of patients with malignant ovarian germ cell tumors, a retrospective analysis from a tertiary care center in India. ESMO Open 2023. [DOI: 10.1016/j.esmoop.2023.100847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2023] Open
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Ahmad F, Singh G, Soni H, Tandon S. Identification of potential neuroprotective compound from
Ganoderma lucidum
extract targeting microtubule affinity regulation kinase 4 involved in Alzheimer's disease through molecular dynamics simulation and
MMGBSA. Aging Med (Milton) 2022. [DOI: 10.1002/agm2.12232] [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: 12/15/2022] Open
Affiliation(s)
- Faizan Ahmad
- Department of Medical Elementology and Toxicology Jamia Hamdard University Delhi India
| | - Gagandeep Singh
- Section of Microbiology, Central Ayurveda Research Institute, Jhansi CCRAS, Ministry of AYUSH Delhi India
- Kusuma School of Biological Sciences Indian Institute of Technology Delhi India
| | - Hemant Soni
- Section of Microbiology, Central Ayurveda Research Institute, Jhansi CCRAS, Ministry of AYUSH Delhi India
| | - Smriti Tandon
- Section of Microbiology, Central Ayurveda Research Institute, Jhansi CCRAS, Ministry of AYUSH Delhi India
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10
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Mitra S, Simson D, Khurana H, Tandon S, Ahlawat P, Bansal N, Barik S, Sethi J, Chufal K, Gairola M. Impact of Radiation Treatment Delay Due to COVID-19 Pandemic. Int J Radiat Oncol Biol Phys 2022. [PMCID: PMC9595463 DOI: 10.1016/j.ijrobp.2022.07.1410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Purpose/Objective(s) To study the effect of radiation treatment delay due to COVID-19 infection. Materials/Methods This study is a descriptive analysis. We studied all patients who were COVID-19 positive while undergoing radiation treatment. In addition, those COVID-19 positive patients before the start of radiation during their neoadjuvant treatment period or surgery were also analyzed. However, patients detected with COVID-19 infection after the radiation treatment course were excluded. The study period was from June 2020 to May 2021. A radiation treatment delay was defined as a delay in starting the treatment, a break in therapy during their scheduled radiation course, or treatment discontinuation. Patients who had a radiation treatment delay were followed-up till December 2021. Results Ninety-four patients who met the criteria were identified for the analysis. Seventy-seven of them had a mild infection, while 17 had a moderate or severe infection. Of the 94 patients identified, 83 patients had a treatment delay. The median treatment delay (MTD) was 18 (6 to 47) days and the median follow-up period was 13 months. In this cohort, 66 patients were treated with a curative intent, of which 51 are on follow-up {34 patients are disease-free (MTD – 18.5, 10 to 43), seven had either a residual disease or locoregional recurrence (MTD – 22, 10 to 32), seven had distant metastasis (MTD – 18, 15 to 47), and three patients died (MTD – 20, 8 to 27)}. Amongst the three patients who died, only one died of COVID-19 infection or sequel (Case Fatality Rate, CFR – 1.06%). Conclusion The CFR due to COVID-19 infection amongst those who underwent radiotherapy was low. At the same time, higher MTD might have been the reason for residual or locoregional recurrences. However, a longer follow-up is required to confirm this. Till then, it will remain debatable whether it was worth delaying radiotherapy for mild to moderate COVID-19 infection for a significant time to cause a potential cancer treatment failure.
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Khoja IA, Arsalan A, Biswas AK, Tandon S. Casein zymography based detection and one step purification for simultaneous quantification of calcium induced endogenous proteases in breast and thigh muscles from different chicken breeds. J FOOD PROCESS PRES 2022. [DOI: 10.1111/jfpp.17129] [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: 11/26/2022]
Affiliation(s)
- I. A. Khoja
- Division of Post‐Harvest Technology, ICAR‐Indian Veterinary Research Institute, Izatnagar Bareilly U.P. India
| | - A. Arsalan
- Division of Livestock Products Technology, ICAR‐Indian Veterinary Research Institute, Izatnagar Bareilly U.P. India
| | - A. K. Biswas
- Division of Livestock Products Technology, ICAR‐Indian Veterinary Research Institute, Izatnagar Bareilly U.P. India
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Singh G, Soni H, Tandon S, Kumar V, Babu G, Gupta V, Chaudhuri (Chattopadhyay) P. Identification of natural DHFR inhibitors in MRSA strains: Structure-based drug design study. Results in Chemistry 2022. [DOI: 10.1016/j.rechem.2022.100292] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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Tandon S, Muthuswami R, Madhubala R. Role of two aminoacyl-tRNA synthetase associated proteins (Endothelial Monocyte Activating Polypeptides 1 and 2) of Leishmania donovani in chemotaxis of human monocytes. Acta Trop 2021; 224:106128. [PMID: 34509454 DOI: 10.1016/j.actatropica.2021.106128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Revised: 09/02/2021] [Accepted: 09/02/2021] [Indexed: 11/26/2022]
Abstract
Visceral leishmaniasis is caused by the protozoan parasite Leishmania donovani. It is a fatal form of leishmaniasis prevalent in Indian subcontinent. Since there are no human licensed vaccines available for leishmaniasis, chemotherapeutic drugs remain the only means for combating parasitic infections. We have earlier identified a total of 26 amino-acyl tRNA synthetases (aaRS) along with five stand-alone editing domains and two aaRS-associated proteins in Leishmania donovani. In addition to their canonical role of tRNA aminoacylation, aaRS have been involved in novel functions by acquiring novel domains during evolution. The aaRS-associated proteins have been reported to be analogous to a human cytokine, EMAP II, as they possess a modified version of the heptapeptide motif responsible for the cytokine activity. In this manuscript, we report the characterization of two L. donovani aminoacyl-tRNA synthetase associated proteins which showed a human chemokine like activity. Both the proteins, L. donovani EMAP-1 and EMAP-2, possess a modified form of the heptapeptide motif, which is responsible for cytokine activity in human EMAP-2. LdEMAP-1 and LdEMAP-2 were cloned, expressed, and purified. Both LdEMAP-1 and LdEMAP-2 proteins in the promastigote stage were found to be localized in cytoplasm as confirmed by immunofluorescence. In case of L. donovani infected human THP-1 derived macrophages, secretion of LdEMAP-1 and LdEMAP-2 proteins in the cytosol of the macrophages was observed. The role of LdEMAP-1 and LdEMAP-2 in the aminoacylation of rLdTyrRS was also tested and LdEMAP-2 but not LdEMAP-1 increased the rate of aminoacylation of tyrosyl tRNA synthetase (rLdTyrRS). L. donovani EMAP-1 and EMAP-2 proteins managed to exhibit the capability of attracting human origin cells as determined by chemotaxis assay, and also were able to induce the secretion of cytokines from macrophages like their human counterpart (EMAP II). Our working hypothesis is that both of these proteins might be involved in helping the parasite to establish the infection within the host.
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Tandon S, Gairola M, Ahlawat P, Purohit S, Umesh P, Krishnan A. Would Full-Dose Radiotherapy Benefit Patients With Synchronous Oligometastatic Head & Neck Squamous Cell Carcinoma. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.1113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Ahlawat P, Singh T, Gairola M, Tandon S, Purohit S, Sachdeva N, Ismail Sharief M, Dobriyal K, Krishnan A. Inter-Correlations Between Various High-Risk Pathological Factors in Resected Buccal Mucosal Squamous Cell Carcinoma. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.1137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Karamanos A, Mudway I, Kelly F, Beevers SD, Dajnak D, Elia C, Cruickshank JK, Lu Y, Tandon S, Enayat E, Dazzan P, Maynard M, Harding S. Air pollution and trajectories of adolescent conduct problems: the roles of ethnicity and racism; evidence from the DASH longitudinal study. Soc Psychiatry Psychiatr Epidemiol 2021; 56:2029-2039. [PMID: 33929549 PMCID: PMC8519907 DOI: 10.1007/s00127-021-02097-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Accepted: 04/23/2021] [Indexed: 01/19/2023]
Abstract
PURPOSE No known UK empirical research has investigated prospective associations between ambient air pollutants and conduct problems in adolescence. Ethnic minority children are disproportionately exposed to structural factors that could moderate any observed relationships. This prospective study examined whether exposure to PM2.5 and NO2 concentrations is associated with conduct problems in adolescence, and whether racism or ethnicity moderate such associations. METHODS Longitudinal associations between annual mean estimated PM2.5 and NO2 concentrations at the residential address and trajectories of conduct problems, and the potential influence of racism and ethnicity were examined school-based sample of 4775 participants (2002-2003 to 2005-2006) in London, using growth curve models. RESULTS Overall, in the fully adjusted model, exposure to lower concentrations of PM2.5 and NO2 was associated with a decrease in conduct problems during adolescence, while exposure to higher concentrations was associated with a flattened trajectory of conduct symptoms. Racism amplified the effect of PM2.5 (β = 0.05 (95% CI 0.01 to 0.10, p < 0.01)) on adolescent trajectories of conduct problems over time. At higher concentrations of PM2.5, there was a divergence of trajectories of adolescent conduct problems between ethnic minority groups, with White British and Black Caribbean adolescents experiencing an increase in conduct problems over time. CONCLUSION These findings suggest that the intersections between air pollution, ethnicity, and racism are important influences on the development of conduct problems in adolescence.
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Affiliation(s)
- A Karamanos
- Department of Nutritional Sciences, School of Life Course Sciences, Faculty of Life Sciences & Medicine, King's College London, 57 Waterloo Road, London, SE1 8WA, UK.
| | - I Mudway
- MRC Centre for Environment and Health, Imperial College London, London, UK
- NIHR Health Protection Research Unit in Environmental Exposures and Health, Imperial College London, London, UK
| | - F Kelly
- MRC Centre for Environment and Health, Imperial College London, London, UK
- NIHR Health Protection Research Unit in Environmental Exposures and Health, Imperial College London, London, UK
| | - S D Beevers
- MRC Centre for Environment and Health, Imperial College London, London, UK
- NIHR Health Protection Research Unit in Environmental Exposures and Health, Imperial College London, London, UK
| | - D Dajnak
- MRC Centre for Environment and Health, Imperial College London, London, UK
- NIHR Health Protection Research Unit in Environmental Exposures and Health, Imperial College London, London, UK
| | - C Elia
- Department of Nutritional Sciences, School of Life Course Sciences, Faculty of Life Sciences & Medicine, King's College London, 57 Waterloo Road, London, SE1 8WA, UK
| | - J K Cruickshank
- Department of Nutritional Sciences, School of Life Course Sciences, Faculty of Life Sciences & Medicine, King's College London, 57 Waterloo Road, London, SE1 8WA, UK
| | - Y Lu
- Department of Nutritional Sciences, School of Life Course Sciences, Faculty of Life Sciences & Medicine, King's College London, 57 Waterloo Road, London, SE1 8WA, UK
| | - S Tandon
- Department of Population Health Sciences, School of Population Health & Environmental Sciences, Faculty of Life Sciences & Medicine, King's College London, London, UK
| | - E Enayat
- Division of Psychiatry, Faculty of Brain Sciences, University College London, London, UK
| | - P Dazzan
- Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - M Maynard
- School of Clinical and Applied Sciences, Leeds Beckett University, London, UK
| | - S Harding
- Department of Nutritional Sciences, School of Life Course Sciences, Faculty of Life Sciences & Medicine, King's College London, 57 Waterloo Road, London, SE1 8WA, UK
- Department of Population Health Sciences, School of Population Health & Environmental Sciences, Faculty of Life Sciences & Medicine, King's College London, London, UK
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Sawant P, Mittal P, Tibdewal A, Mummudi N, Tandon S, Agarwal J. P05.05 Impact of Lung Stereotactic Body Radiotherapy on Pulmonary Function Test – Experience from Tertiary Cancer Centre in India. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Ahlawat P, Tiwari S, Gairola M, Tandon S, Purohit S, Dobriyal K, Singh T, Krishnan A. PO-0950 Comparison between two-dose levels versus three-dose levels IMRT in head and neck cancers. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)07401-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Umesh P, Tandon S, Gairola M, Ahlawat P, Purohit S, Dobriyal K. PO-0981 Wide histological spectrum of sinonasal malignancies and survival outcomes - An Institutional review. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)07432-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Sachdeva N, Ahlawat P, Gairola M, Tandon S, Purohit S, Sharief M, Dobriyal K, Singh T, Krishnan A. PO-0953 Impact of human papilloma virus on treatment outcomes in oropharyngeal cancer in India. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)07404-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Ahlawat P, Krishnan A, Gairola M, Tandon S, Purohit S, Sachdeva N, Sharief M, Dobriyal K, Singh T. PO-1028 Inter-correlations between various high-risk pathological factors in squamous cell carcinoma tongue. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)07479-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Sharief M, Ahlawat P, Gairola M, Erum T, Tandon S, Purohit S, Sachdeva N, Chufal K, Ahmad I, Chowdhary R, Antony V. PO-1865 Simultaneous integrated boost IMRT versus sequential IMRT in head and neck cancers. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)08316-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Ahlawat P, Gairola M, Purohit S, Tandon S, Sachdeva N, Sharief M, Singh T, Dobriyal K, Krishnan A. PO-0984 Impact of anterior commissure involvement in early glottic cancer treated with radical IMRT. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)07435-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Dev A, Tandon S, Kumar P, Dutt A. Effect of Coating and Polishing of Cutting Tool on Machined Surface Quality in Dry Machining of Aluminium Alloy. DEFENCE SCI J 2020. [DOI: 10.14429/dsj.70.14831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Surface quality is one of the major concerns in any machining process. To achieve the higher surface finish, mostly concentrated on machining parameter optimisation. This study has been carried out to study the effect of coating and polishing of flute surface of the solid carbide (WC-Co) endmill cutters on machined surface quality obtained during dry machining of Aluminium alloy 24345WP. Experiments were conducted on Aluminum workpieces with Ø6 mm 2 flute end- mill cutter with and without coating/polishing and their effect on surface quality studied for linear as well as areal surface roughness parameters using white light interferometery. The study concludes that polished flute tool, despite their non-sharp cutting edges, gives considerably better surface finish due to its lowering of chip tool friction. This was also supported by the results obtained from scanning electron microscopy of the cutting tool edge as well as optical microscopy of the obtained machined surface.
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Tandon S, Manhas R, Tiwari N, Munde M, Vijayan R, Gourinath S, Muthuswami R, Madhubala R. Deciphering the interaction of benzoxaborole inhibitor AN2690 with connective polypeptide 1 (CP1) editing domain of Leishmania donovani leucyl-tRNA synthetase. J Biosci 2020; 45:63. [PMID: 32385222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Leucyl-tRNA synthetases (LRS) catalyze the linkage of leucine with tRNALeu. A large insertion CP1 domain (Connective Polypeptide 1) in LRS is responsible for post-transfer editing of mis-charged aminoacyl-tRNAs. Here, we characterized the CP1 domain of Leishmania donovani, a protozoan parasite, and its role in editing activity and interaction with broad spectrum anti-fungal, AN2690. The deletion mutant of LRS, devoid of CP1 domain (LRS-CP1Δ) was constructed, followed by determination of its role in editing and aminoacylation. Binding of AN2690 and different amino acids with CP1 deletion mutant and full length LRS was evaluated using isothermal titration calorimetry (ITC) and molecular dynamics simulations. The recombinant LRS-CP1Δ protein did not catalyze the aminoacylation and the editing reaction when compared to full-length LRS. Thus, indicating that CP1 domain was imperative for both aminoacylation and editing activities of LRS. Binding studies with different amino acids indicated selectivity of isoleucine by CP1 domain over other amino acids. These studies also indicated high affinity of AN2690 with the editing domain. Molecular docking studies indicated that AN2690-CP1 domain complex was stabilized by hydrogen bonding and hydrophobic interactions resulting in high binding affinity between the two. Our data suggests CP1 is crucial for the function of L.donovani LRS.
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MESH Headings
- Amino Acid Sequence
- Antifungal Agents/chemistry
- Antifungal Agents/pharmacology
- Antiprotozoal Agents/chemistry
- Antiprotozoal Agents/pharmacology
- Binding Sites
- Boron Compounds/chemistry
- Boron Compounds/pharmacology
- Bridged Bicyclo Compounds, Heterocyclic/chemistry
- Bridged Bicyclo Compounds, Heterocyclic/pharmacology
- Drug Repositioning
- Gene Expression
- Hydrogen Bonding
- Hydrophobic and Hydrophilic Interactions
- Leishmania donovani/chemistry
- Leishmania donovani/enzymology
- Leishmania donovani/genetics
- Leucine-tRNA Ligase/antagonists & inhibitors
- Leucine-tRNA Ligase/chemistry
- Leucine-tRNA Ligase/genetics
- Leucine-tRNA Ligase/metabolism
- Molecular Docking Simulation
- Molecular Dynamics Simulation
- Peptides/chemistry
- Peptides/metabolism
- Protein Binding
- Protein Conformation, alpha-Helical
- Protein Conformation, beta-Strand
- Protein Interaction Domains and Motifs
- Protein Processing, Post-Translational
- Protozoan Proteins/antagonists & inhibitors
- Protozoan Proteins/chemistry
- Protozoan Proteins/genetics
- Protozoan Proteins/metabolism
- RNA, Transfer, Leu/chemistry
- RNA, Transfer, Leu/metabolism
- Recombinant Proteins/chemistry
- Recombinant Proteins/genetics
- Recombinant Proteins/metabolism
- Sequence Alignment
- Sequence Deletion
- Sequence Homology, Amino Acid
- Transfer RNA Aminoacylation/genetics
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Affiliation(s)
- Smriti Tandon
- School of Life Sciences, Jawaharlal Nehru University, New Delhi, India
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Tandon S, Gairola M, Ahlawat P, Narang R, Varghese A, Sharma M. PO-129: Definitive radiotherapy in oligometastatic head and neck cancers responding to systemic therapy. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(20)30471-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Kamath NP, Tandon S, Nayak R, Naidu S, Anand PS, Kamath YS. The effect of aloe vera and tea tree oil mouthwashes on the oral health of school children. Eur Arch Paediatr Dent 2019; 21:61-66. [DOI: 10.1007/s40368-019-00445-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2018] [Accepted: 05/12/2019] [Indexed: 10/26/2022]
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Nigam N, Khare P, Yadav V, Mishra D, Jain S, Karak T, Panja S, Tandon S. Biochar-mediated sequestration of Pb and Cd leads to enhanced productivity in Mentha arvensis. Ecotoxicol Environ Saf 2019; 172:411-422. [PMID: 30735973 DOI: 10.1016/j.ecoenv.2019.02.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 01/31/2019] [Accepted: 02/01/2019] [Indexed: 05/08/2023]
Abstract
Immobilization of cadmium (Cd) and lead (Pb) along with the alleviation of their phytotoxicity in Mentha arvensis by biochar was examined in this investigation. A greenhouse experiment was executed to evaluate the effect of biochar (BC) amended Cd and Pb spiked soil on their immobilization and uptake, plant growth, photosynthetic attributes (total chlorophyll, photosynthetic rate, transpiration rate, and stomatal activity) and oxidative enzymes (guaiacol peroxidase: POD; catalase: CAT and superoxide dismutase: SOD). In the present study, the photosynthetic attributes showed that BC significantly improved the total chlorophyll, photosynthetic, transpiration rates, and stomatal activity in the plants. The incorporation of BC in soil increase the Pb and Cd tolerance in M. arvensis vis-à-vis improved the biomass yield and nutrient intake. In addition, biochar has also reduced the POD, CAT, and SOD in the plant as well as improved the soil pH and enzymatic activities. Overall, BC immobilized the Cd and Pb in soil by providing the binding site to the metals and reduced the phytotoxicity in M. arvensis. However, large-scale field trials of BC are required for safe cultivation of M. arvensis which is known for its phytopharmaceuticals importance.
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Affiliation(s)
- Nidhi Nigam
- Agronomy and Soil Science Division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow 226015, India
| | - Puja Khare
- Agronomy and Soil Science Division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow 226015, India.
| | - Vineet Yadav
- Agronomy and Soil Science Division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow 226015, India
| | - Disha Mishra
- Agronomy and Soil Science Division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow 226015, India
| | - Shilpi Jain
- Agronomy and Soil Science Division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow 226015, India
| | - Tanmoy Karak
- Upper Assam Advisory Centre, Tea Research Association, Dikom, 786101 Dibrugarh, Assam, India; Department of Civil, Environmental and Ocean Engineering, Stevens Institute of Technology, 1 Castle Point Terrace, Hoboken, NJ 07030, USA
| | - Saumik Panja
- Department of Civil, Environmental and Ocean Engineering, Stevens Institute of Technology, 1 Castle Point Terrace, Hoboken, NJ 07030, USA
| | - S Tandon
- Chemical Processing and Technology Division, CSIR-Central Institute of Medicinal and Aromatic Plants, Lucknow 226015, India
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Purandare NC, Pramesh CS, Agarwal JP, Agrawal A, Shah S, Prabhash K, Karimundackal G, Jiwnani S, Tandon S, Rangarajan V. Solitary pulmonary nodule evaluation in regions endemic for infectious diseases: Do regional variations impact the effectiveness of fluorodeoxyglucose positron emission tomography/computed tomography. Indian J Cancer 2018; 54:271-275. [PMID: 29199704 DOI: 10.4103/0019-509x.219563] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND Fluorodeoxyglucose positron emission tomography/computed tomography (FDG-PET/CT) has become a preferred imaging modality for the evaluation of solitary pulmonary nodule (SPN), particularly in the developed world. Since FDG can concentrate in infective/inflammatory lesions, the diagnostic utility of FDG-PET can be questioned, particularly in regions endemic for infectious decisions. AIM To evaluate the accuracy of FDG-PET/CT in evaluation of SPNs in a population endemic for infectious disease and to assess if regional variations have an impact on its effectiveness. MATERIALS AND METHODS All patients who underwent an FDG/PET-CT with a clinico-radiological diagnosis of SPN categorized as indeterminate were included. Based on a maximum standardized uptake values (SUVmax) cut-off of 2.5, lesions were classified as benign (<2.5) or malignant (>2.5) and compared with gold standard histopathology. The diagnostic accuracy of PET-CT to detect malignancy was calculated. On the basis of final histopathology, lesions were grouped as (a) malignant nodules (b) infective/granulomatous nodules with a specific diagnosis and (c) nonspecific inflammatory nodules. The SUVmaxbetween these groups was compared using nonparametric statistical tests. RESULTS A total of 191 patients (129 males, 62 females) with a median age of 64 years (range: 36-83) were included. Totally, 144 nodules (75.3%) were malignant and 47 were benign (24.7%). Adenocarcinoma (n = 84) was the most common malignancy. Tuberculosis (n = 16) and nonspecific infections (n = 24) were the two most common benign pathologies. There was a significant overlap in the metabolic uptake of malignant (median SUVmax-11.2, range: 3.3-34.6) and tuberculous nodules (median SUVmax-10.3, range: 2.7-22.5) with no statistically difference between their SUVmaxvalues (P = 0.43). The false-positive rate was 65.2% and the false-negative rate was 5.5%. The sensitivity, specificity, positive predictive value, negative predictive value, and accuracy of FDG-PET/CT for detecting malignancy were 94.4%, 34.7%, 81.9%, 66.6%, and 79.5%, respectively. CONCLUSIONS Though FDG-PET scans show a very high sensitivity for malignant nodules, it has a high false-positive rate and reduced specificity when characterizing SPNs in an infectious endemic region. Physicians must be aware of this limitation in the workup of lung nodules, and regional variations must be considered before further management decisions are taken.
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Affiliation(s)
- N C Purandare
- Department of Nuclear Medicine and Molecular Imaging, Tata Memorial Centre, Mumbai, Maharashtra, India
| | - C S Pramesh
- Department of Surgical Oncology, Tata Memorial Centre, Mumbai, Maharashtra, India
| | - J P Agarwal
- Department of Radiation Oncology, Tata Memorial Centre, Mumbai, Maharashtra, India
| | - A Agrawal
- Department of Nuclear Medicine and Molecular Imaging, Tata Memorial Centre, Mumbai, Maharashtra, India
| | - S Shah
- Department of Nuclear Medicine and Molecular Imaging, Tata Memorial Centre, Mumbai, Maharashtra, India
| | - K Prabhash
- Department of Medical Oncology, Tata Memorial Centre, Mumbai, Maharashtra, India
| | - G Karimundackal
- Department of Surgical Oncology, Tata Memorial Centre, Mumbai, Maharashtra, India
| | - S Jiwnani
- Department of Surgical Oncology, Tata Memorial Centre, Mumbai, Maharashtra, India
| | - S Tandon
- Department of Chest Medicine, Tata Memorial Centre, Mumbai, Maharashtra, India
| | - V Rangarajan
- Department of Nuclear Medicine and Molecular Imaging, Tata Memorial Centre, Mumbai, Maharashtra, India
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Agarwal JP, Chakraborty S, Laskar SG, Mummudi N, Patil VM, Upasani M, Prabhash K, Noronha V, Joshi A, Purandare N, Tandon S, Arora J, Badhe R. Applying the QUARTZ Trial Results in Clinical Practice: Development of a Prognostic Model Predicting Poor Outcomes for Non-small Cell Lung Cancers with Brain Metastases. Clin Oncol (R Coll Radiol) 2018; 30:382-390. [PMID: 29499878 DOI: 10.1016/j.clon.2018.02.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [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: 08/21/2017] [Revised: 12/21/2017] [Accepted: 01/05/2018] [Indexed: 01/21/2023]
Abstract
AIMS The role of whole brain radiotherapy (WBRT) in patients with brain metastases from non-small cell lung cancers (NSCLC) has been questioned. However, no reliable criteria exist to identify patients who do not benefit from WBRT. The objective of the current study was to develop a prognostic model to identify such patients whose survival matches that of the Quality of Life after Treatment for Brain Metastases (QUARTZ) study. MATERIALS AND METHODS Outcome data of patients with NSCLC with brain metastases undergoing WBRT enrolled in a prospective observational study in a tertiary cancer centre were used to develop a prognostic model. Baseline clinico-radiological factors were used for development of the model. The model was internally validated and calibration accuracy was checked for prediction of 70 day mortality. The generated prognostic model was presented as a nomogram. RESULTS The median overall survival of 140 patients enrolled in the study was 166 days (95% confidence interval 108-242 days). The prognostic model identified gender, Karnofsky performance status and epidermal growth factor receptor activating mutation status as significant factors influencing overall survival. The model showed a modest discriminative ability with an optimism-corrected C-index of 0.64. However, model calibration error did reveal a moderate degree of calibration error. The high-risk subgroup identified by the model had a median overall survival of 67 days (95% confidence interval 56-101 days), which was similar to that observed in the QUARTZ trial. CONCLUSION This prognostic model derived from traditional clinico-radiological features had a modest ability to identify patients with poor prognosis who may not benefit from WBRT. However, the high-risk subgroup identified using this prognostic model had a survival similar to that observed for patients in the QUARTZ trial.
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Affiliation(s)
- J P Agarwal
- Department of Radiation Oncology, Tata Memorial Hospital, Parel, Mumbai, India
| | - S Chakraborty
- Department of Radiation Oncology, Tata Memorial Hospital, Parel, Mumbai, India.
| | - S G Laskar
- Department of Radiation Oncology, Tata Memorial Hospital, Parel, Mumbai, India
| | - N Mummudi
- Department of Radiation Oncology, Tata Memorial Hospital, Parel, Mumbai, India
| | - V M Patil
- Department of Medical Oncology, Tata Memorial Hospital, Parel, Mumbai, India
| | - M Upasani
- Department of Radiation Oncology, Tata Memorial Hospital, Parel, Mumbai, India
| | - K Prabhash
- Department of Medical Oncology, Tata Memorial Hospital, Parel, Mumbai, India
| | - V Noronha
- Department of Medical Oncology, Tata Memorial Hospital, Parel, Mumbai, India
| | - A Joshi
- Department of Medical Oncology, Tata Memorial Hospital, Parel, Mumbai, India
| | - N Purandare
- Department of Radiology, Tata Memorial Hospital, Parel, Mumbai, India
| | - S Tandon
- Department of Pulmonary Medicine, Tata Memorial Hospital, Parel, Mumbai, India
| | - J Arora
- Department of Radiation Oncology, Tata Memorial Hospital, Parel, Mumbai, India
| | - R Badhe
- Department of Radiation Oncology, Tata Memorial Hospital, Parel, Mumbai, India
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Mathew AS, Agarwal JP, Munshi A, Laskar SG, Pramesh CS, Karimundackal G, Jiwnani S, Prabhash K, Noronha V, Joshi A, Rangarajan V, Purandare NC, Jambhekar N, Tandon S, Mahajan A, Kumar R, Deodhar J. A prospective study of telephonic contact and subsequent physical follow-up of radically treated lung cancer patients. Indian J Cancer 2017; 54:241-252. [PMID: 29199699 DOI: 10.4103/0019-509x.219599] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND We tested the hypothesis that telephonic follow-up (FU) may offer a convenient and equivalent alternative to physical FU of radically treated lung cancer patients. DESIGN Prospective study carried out at a tertiary referral cancer care institute, Mumbai. MATERIALS AND METHODS Two hundred consecutive lung cancer patients treated with curative intent were followed up regularly with telephonic interviews paired with their routine physical FU visits. Patient satisfaction with the telephonic call and the physical visit, the anxiety level of the patient after meeting the physician and the economic burden of the visit to the patient were noted in a descriptive manner. Kappa statistics was used to assess concurrence between the telephonic and physical impression of disease status. RESULTS With a median FU duration of 21.5 months, the median satisfaction scores for telephonic and physical FU were 8 and 9, respectively. The prevalence and bias adjusted kappa (PABAK) score of the entire cohort of patients was 0.64 (95% confidence interval [CI] =0.58-0.70). Data analyzed up to first disease progression/relapse on FU had a PABAK score of 0.71 (95% CI = 0.64-0.77) indicating substantial agreement. Patients with disease controlled at the FU had a significant PABAK score of 0.88 (95% CI = 0.80-0.94) indicating excellent concurrence. On average, each patient spent Rs. 5117.10 on travel and Rs. 3079.06 on lodging per FU visit. CONCLUSION Telephonic FU is substantially accurate in assessing disease status until the first relapse. In a resource-constrained country like India, it is worthwhile to further explore the benefits of such an alternative strategy.
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Affiliation(s)
- A S Mathew
- Department of Radiation Oncology, Tata Memorial Hospital, Mumbai, Maharashtra, India
| | - J P Agarwal
- Department of Radiation Oncology, Tata Memorial Hospital, Mumbai, Maharashtra, India
| | - A Munshi
- Department of Radiation Oncology, Tata Memorial Hospital, Mumbai, Maharashtra, India
| | - S G Laskar
- Department of Radiation Oncology, Tata Memorial Hospital, Mumbai, Maharashtra, India
| | - C S Pramesh
- Department of Surgical Oncology, Tata Memorial Hospital, Mumbai, Maharashtra, India
| | - G Karimundackal
- Department of Surgical Oncology, Tata Memorial Hospital, Mumbai, Maharashtra, India
| | - S Jiwnani
- Department of Surgical Oncology, Tata Memorial Hospital, Mumbai, Maharashtra, India
| | - K Prabhash
- Department of Medical Oncology, Tata Memorial Hospital, Mumbai, Maharashtra, India
| | - V Noronha
- Department of Medical Oncology, Tata Memorial Hospital, Mumbai, Maharashtra, India
| | - A Joshi
- Department of Medical Oncology, Tata Memorial Hospital, Mumbai, Maharashtra, India
| | - V Rangarajan
- Department of Nuclear Medicine, Tata Memorial Hospital, Mumbai, Maharashtra, India
| | - N C Purandare
- Department of Nuclear Medicine, Tata Memorial Hospital, Mumbai, Maharashtra, India
| | - N Jambhekar
- Department of Pathology, Tata Memorial Hospital, Mumbai, Maharashtra, India
| | - S Tandon
- Department of Pulmonary Medicine, Tata Memorial Hospital, Mumbai, Maharashtra, India
| | - A Mahajan
- Department of Radiology, Tata Memorial Hospital, Mumbai, Maharashtra, India
| | - R Kumar
- Department of Pathology, Tata Memorial Hospital, Mumbai, Maharashtra, India
| | - J Deodhar
- Department of Clinical Psychology, Tata Memorial Hospital, Mumbai, Maharashtra, India
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Agarwal JP, Hotwani C, Prabhash K, Munshi A, Misra S, Mathew A, Kalyani N, Noronha V, Laskar SG, Joshi A, Purandare N, Tandon S, Sharma V. Optimizing treatment and analysis of prognostic factors for locally advanced nonsmall cell lung cancer in resource-limited population. Indian J Cancer 2017; 53:96-101. [PMID: 27146753 DOI: 10.4103/0019-509x.180810] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND Lung cancer most commonly presents in advanced stages in developing countries, where combined modality treatment using chemo-radiotherapy (CTRT) is the standard of care. MATERIALS AND METHODS A retrospective audit of patients of nonsmall cell lung cancer (NSCLC) treated at a single Institute from January 2008 to December 2012 was conducted. Various prognostic factors affecting disease-free survival (DFS) and overall survival (OS) were studied by univariate and multivariate analysis. All patients were meticulously followed-up clinically and telephonic contacts. RESULTS Overall 171 patients of NSCLC were treated with definitive CTRT using concurrent chemotherapy in 66% patients and sequential therapy in 28% patients. The actuarial 2 years DFS was 17.5% and 2 years OS was 61.5%. Complete response to treatment resulted in significantly better DFS and OS. Definitive CTRT was very well-tolerated in these patients with good compliance. CONCLUSION Definitive CTRT, sequence being individualized depending on performance status and disease stage at presentation, is a feasible and effective treatment modality for locally advanced NSCLC patients in the developing world. Response to treatment is an important prognostic factor for treatment outcomes.
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Affiliation(s)
- J P Agarwal
- Department of Radiation Oncology, Tata Memorial Hospital, Mumbai, Maharashtra, India
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Haughey BH, Sinha P, Kallogjeri D, Goldberg RL, Lewis JS, Piccirillo JF, Jackson RS, Moore EJ, Brandwein-Gensler M, Magnuson SJ, Carroll WR, Jones TM, Wilkie MD, Lau A, Upile NS, Sheard J, Lancaster J, Tandon S, Robinson M, Husband D, Ganly I, Shah JP, Brizel DM, O'Sullivan B, Ridge JA, Lydiatt WM. Pathology-based staging for HPV-positive squamous carcinoma of the oropharynx. Oral Oncol 2016; 62:11-19. [PMID: 27865363 PMCID: PMC5523818 DOI: 10.1016/j.oraloncology.2016.09.004] [Citation(s) in RCA: 87] [Impact Index Per Article: 10.9] [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: 07/18/2016] [Revised: 09/06/2016] [Accepted: 09/14/2016] [Indexed: 01/23/2023]
Abstract
OBJECTIVE The rapid worldwide rise in incidence of human papillomavirus (HPV)-positive oropharyngeal squamous cell carcinoma (OPSCC) has generated studies confirming this disease as an entity distinct from traditional OPSCC. Based on pathology, surgical studies have revealed prognosticators specific to HPV-positive OPSCC. The current AJCC/UICC staging and pathologic nodal (pN)-classification do not differentiate for survival, demonstrating the need for new, HPV-specific OPSCC staging. The objective of this study was to define a pathologic staging system specific to HPV-positive OPSCC. METHODS Data were assembled from a surgically-managed, p16-positive OPSCC cohort (any T, any N, M0) of 704 patients from five cancer centers. Analysis was performed for (a) the AJCC/UICC pathologic staging, (b) newly published clinical staging for non-surgically managed HPV-positive OPSCC, and (c) a novel, pathology-based, "HPVpath" staging system that combines features of the primary tumor and nodal metastases. RESULTS A combination of AJCC/UICC pT-classification and pathology-confirmed metastatic node count (⩽4 versus ⩾5) yielded three groups: stages I (pT1-T2, ⩽4 nodes), II (pT1-T2, ⩾5 nodes; pT3-T4, ⩽4 nodes), and III (pT3-T4, ⩾5 nodes), with incrementally worse prognosis (Kaplan-Meier overall survival of 90%, 84% and 48% respectively). Existing AJCC/UICC pathologic staging lacked prognostic definition. Newly published HPV-specific clinical stagings from non-surgically managed patients, although prognostic, showed lower precision for this surgically managed cohort. CONCLUSIONS Three loco-regional "HPVpath" stages are identifiable for HPV-positive OPSCC, based on a combination of AJCC/UICC primary tumor pT-classification and metastatic node count. A workable, pathologic staging system is feasible to establish prognosis and guide adjuvant therapy decisions in surgically-managed HPV-positive OPSCC.
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Affiliation(s)
- B H Haughey
- Head and Neck Surgery, Florida Hospital Celebration Health, Celebration, FL, USA; Department of Surgery, University of Auckland Faculty of Medicine and Health Sciences, Auckland, New Zealand.
| | - P Sinha
- Otolaryngology-Head and Neck Surgery, Washington University School of Medicine, St. Louis, MO, USA
| | - D Kallogjeri
- Otolaryngology-Head and Neck Surgery, Washington University School of Medicine, St. Louis, MO, USA
| | - R L Goldberg
- Otolaryngology-Head and Neck Surgery, Washington University School of Medicine, St. Louis, MO, USA
| | - J S Lewis
- Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - J F Piccirillo
- Otolaryngology-Head and Neck Surgery, Washington University School of Medicine, St. Louis, MO, USA
| | - R S Jackson
- Otolaryngology-Head and Neck Surgery, Washington University School of Medicine, St. Louis, MO, USA
| | - E J Moore
- Otolaryngology-Head and Neck Surgery, Mayo Clinic, Rochester, MN, USA
| | - M Brandwein-Gensler
- Pathology and Anatomical Sciences, SUNY at the University at Buffalo, Buffalo, NY, USA
| | - S J Magnuson
- Head and Neck Surgery, Florida Hospital Celebration Health, Celebration, FL, USA
| | - W R Carroll
- Otolaryngology-Head and Neck Surgery, University of Alabama, Birmingham, AL, USA
| | - T M Jones
- Otolaryngology-Head and Neck Surgery, University of Liverpool, UK; Aintree University Hospitals NHS Foundation Trust, Liverpool, UK
| | - M D Wilkie
- Otolaryngology-Head and Neck Surgery, University of Liverpool, UK; Aintree University Hospitals NHS Foundation Trust, Liverpool, UK
| | - A Lau
- Otolaryngology-Head and Neck Surgery, University of Liverpool, UK; Aintree University Hospitals NHS Foundation Trust, Liverpool, UK
| | - N S Upile
- Otolaryngology-Head and Neck Surgery, University of Liverpool, UK; Aintree University Hospitals NHS Foundation Trust, Liverpool, UK
| | - Jon Sheard
- Aintree University Hospitals NHS Foundation Trust, Liverpool, UK; Pathology, University of Liverpool, UK
| | - J Lancaster
- Aintree University Hospitals NHS Foundation Trust, Liverpool, UK
| | - S Tandon
- Aintree University Hospitals NHS Foundation Trust, Liverpool, UK
| | - M Robinson
- Centre for Oral Health Research, Newcastle University, Framlington Place, Newcastle-upon-Tyne, UK
| | - D Husband
- Clatterbridge Cancer Centre, Wirral, UK
| | - I Ganly
- Head and Neck Surgery, Memorial Sloan Kettering Cancer Center, New York, USA
| | - J P Shah
- Head and Neck Surgery, Memorial Sloan Kettering Cancer Center, New York, USA
| | - D M Brizel
- Radiation Oncology, Duke University Medical Center, Durham, NC, USA
| | - B O'Sullivan
- Radiation Oncology, Princess Margaret Cancer Centre, University of Toronto, Toronto, ON, Canada
| | - J A Ridge
- Head and Neck Surgery, Fox Chase Cancer Center, Philadelphia, PA, USA
| | - W M Lydiatt
- Clinical Professor, Creighton Department of Surgery, Omaha, NE, USA
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Akakpo W, Le Cossec C, Tandon S, Gomez FD, Cattarino S, Seisen T, Rouprêt M. Trends in scientific publications related to the field of onco-urology over the past 10 years. Eur J Surg Oncol 2016; 42:1751-1755. [PMID: 27473925 DOI: 10.1016/j.ejso.2016.06.408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Revised: 06/18/2016] [Accepted: 06/22/2016] [Indexed: 11/16/2022] Open
Affiliation(s)
- W Akakpo
- Academic Department of Urology, La Pitié-Salpêtrière Hospital, AP-HP, Université Paris 6, 47-83 Boulevard de l'Hôpital, 75013 Paris, France
| | - C Le Cossec
- Academic Department of Biostatistics, La Pitié-Salpêtrière Hospital, AP-HP, Université Paris 6, 47-83 Boulevard de l'Hôpital, 75013 Paris, France
| | - S Tandon
- Academic Department of Pharmacy, The Johns Hopkins Hospital, 1800 Orleans St, Baltimore, MD 21287, USA
| | - F D Gomez
- Department of Urology, CHC, Rue de Hesbaye 75, 4000 Liège, Belgium
| | - S Cattarino
- Academic Department of Urology, Sapienza University, Piazzale Aldo Moro, 5, 00185 Roma, Italy
| | - T Seisen
- Academic Department of Urology, La Pitié-Salpêtrière Hospital, AP-HP, Université Paris 6, 47-83 Boulevard de l'Hôpital, 75013 Paris, France
| | - M Rouprêt
- Academic Department of Urology, La Pitié-Salpêtrière Hospital, AP-HP, Université Paris 6, 47-83 Boulevard de l'Hôpital, 75013 Paris, France.
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Biswas AK, Kripriyalini L, Tandon S, Sharma D, Majumder S. Simultaneous Identification of Different Domains of Calpain from Blood and Turkey Meat Samples Using Casein Zymography. FOOD ANAL METHOD 2016. [DOI: 10.1007/s12161-016-0481-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Mittal A, Tandon S, Singla SK, Tandon C. In vitro studies reveal antiurolithic effect of Terminalia arjuna using quantitative morphological information from computerized microscopy. Int Braz J Urol 2016; 41:935-44. [PMID: 26689519 PMCID: PMC4756970 DOI: 10.1590/s1677-5538.ibju.2014.0547] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2014] [Accepted: 02/16/2016] [Indexed: 01/25/2023] Open
Abstract
PURPOSE For most cases, urolithiasis is a condition where excessive oxalate is present in the urine. Many reports have documented free radical generation followed by hyperoxaluria as a consequence of which calcium oxalate (CaOx) deposition occurs in the kidney tissue. The present study is aimed to exam the antilithiatic potency of the aqueous extract (AE) of Terminalia arjuna (T. arjuna). MATERIALS AND METHODS The antilithiatic activity of Terminalia arjuna was investigated in vitro nucleation, aggregation and growth of the CaOx crystals as well as the morphology of CaOx crystals using the inbuilt software 'Image-Pro Plus 7.0' of Olympus upright microscope (BX53). Antioxidant activity of AE of Terminalia arjuna bark was also determined in vitro. RESULTS Terminalia arjuna extract exhibited a concentration dependent inhibition of nucleation and aggregation of CaOx crystals. The AE of Terminalia arjuna bark also inhibited the growth of CaOx crystals. At the same time, the AE also modified the morphology of CaOx crystals from hexagonal to spherical shape with increasing concentrations of AE and reduced the dimensions such as area, perimeter, length and width of CaOx crystals in a dose dependent manner. Also, the Terminalia arjuna AE scavenged the DPPH (2, 2-diphenyl-1-picrylhydrazyl) radicals with an IC50 at 13.1µg/mL. CONCLUSIONS The study suggests that Terminalia arjuna bark has the potential to scavenge DPPH radicals and inhibit CaOx crystallization in vitro. In the light of these studies, Terminalia arjuna can be regarded as a promising candidate from natural plant sources of antilithiatic and antioxidant activity with high value.
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Affiliation(s)
- A Mittal
- Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology, Waknaghat, Solan 173234, Himachal Pradesh, India
| | - S Tandon
- Amity Institute of Molecular Medicine and Stem Cell Research (AIMMSCR), Amity University Uttar Pradesh, Noida
| | - S K Singla
- Department of Biochemistry, Panjab University, Chandigarh - 160014, India
| | - C Tandon
- Amity Institute of Biotechnology, Amity University Uttar Pradesh, Sector - 125, Noida, U.P., 201313 India
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Mittal A, Tandon S, Singla SK, Tandon C. Erratum to: In vitro inhibition of calcium oxalate crystallization and crystal adherence to renal tubular epithelial cells by Terminalia arjuna. Urolithiasis 2016; 44:287. [PMID: 27142167 DOI: 10.1007/s00240-016-0884-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- A Mittal
- Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology, Waknaghat, Solan, Himachal Pradesh, 173234, India
| | - S Tandon
- Amity University Uttar Pradesh, Sector ‑ 125, Noida, 201313, India
| | - S K Singla
- Department of Biochemistry, Panjab University, Chandigarh, 160014, India
| | - C Tandon
- Amity University Uttar Pradesh, Sector ‑ 125, Noida, 201313, India.
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Rawat S, Srivastava H, Ahlawat P, Pal M, Gupta G, Chauhan D, Tandon S, Khurana R. Weekly versus Three-Weekly Cisplatin-based Concurrent Chemoradiotherapy as definitive treatment in Head and Neck Cancer- Where do we stand? Gulf J Oncolog 2016; 1:6-11. [PMID: 27250881] [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] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/15/2016] [Indexed: 06/05/2023]
Abstract
PURPOSE To compare toxicity, compliance, and early response of weekly and 3-weekly cisplatin administration concurrent with radiotherapy as definitive treatment in locally advanced squamous cell carcinoma head and neck. MATERIALS AND METHODS Patients with histologically proven stage III - IV B head and neck carcinoma presenting from June 2013 to March 2014 were randomly assigned to weekly (35 mg/m2, 6 cycles; arm A) and 3 weekly (100 mg/m2, 3 cycles; arm B) cisplatin with concurrent radiotherapy. RESULTS 60 patients were randomly assigned to treatment, 30 in each arm. Median follow-up was 8 months (range 4-13). There was no significant difference in grade 3 mucositis between the two arms (75.9% vs 70%, p = 0.20). Grade 3 neutropenia was more frequent in arm B (55.2% vs 26.7%, p = 0.01). Hypomagnesemia was the commonest electrolyte imbalance and it was significantly higher in arm B (60% vs 20%, p = 0.001). Completion rate of scheduled chemotherapy cycles was higher for patients receiving weekly regimen. Response at 3 months was similar for all the patients {Complete Response (66.7% vs 62.1%), p = 0.200}. Our data suggested that there is a reduced need of hospitalization and supportive care measures for patients receiving weekly cisplatin with RT (p = 0.05). CONCLUSIONS Weekly cisplatin 35 mg/m2 chemotherapy concurrent with radiotherapy is equally effective and less toxic in terms of neutropenia, hypomagnesemia and need for supportive measures than the conventional 3 weekly cisplatin 100 mg/m2 regimen.
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Affiliation(s)
- S Rawat
- Department of Radiation Oncology, Rajiv Gandhi Cancer Institute and Research Centre, New Delhi, India
| | - H Srivastava
- Department of Radiation Oncology, Rajiv Gandhi Cancer Institute and Research Centre, New Delhi, India
| | - P Ahlawat
- Department of Radiation Oncology, Rajiv Gandhi Cancer Institute and Research Centre, New Delhi, India
| | - M Pal
- Department of Radiation Oncology, Rajiv Gandhi Cancer Institute and Research Centre, New Delhi, India
| | - G Gupta
- Department of Radiation Oncology, Rajiv Gandhi Cancer Institute and Research Centre, New Delhi, India
| | - D Chauhan
- Department of Radiation Oncology, Rajiv Gandhi Cancer Institute and Research Centre, New Delhi, India
| | - S Tandon
- Department of Radiation Oncology, Rajiv Gandhi Cancer Institute and Research Centre, New Delhi, India
| | - R Khurana
- Department of Radiation Oncology, Rajiv Gandhi Cancer Institute and Research Centre, New Delhi, India
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Rogers SN, Pinto RS, Lancaster J, Bekiroglu F, Lowe D, Tandon S, Jones TM. Health related quality of life following the treatment of oropharyngeal cancer by transoral laser. Eur Arch Otorhinolaryngol 2016; 273:3913-3920. [DOI: 10.1007/s00405-016-4035-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2015] [Accepted: 04/06/2016] [Indexed: 10/21/2022]
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Wilkie M, Lightbody K, Pinto R, Tandon S, Jones T, Lancaster J. Prognostic implications of pathologically determined tumour volume in glottic carcinomas treated by transoral laser microsurgery. Clin Otolaryngol 2015; 40:610-5. [DOI: 10.1111/coa.12421] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/18/2015] [Indexed: 11/26/2022]
Affiliation(s)
- M.D. Wilkie
- Department of Otorhinolaryngology - Head & Neck Surgery; University Hospital Aintree; Liverpool UK
- Liverpool Cancer Research Centre; Department of Molecular & Clinical Cancer Medicine; University of Liverpool; Liverpool UK
| | - K.A. Lightbody
- Department of Otorhinolaryngology - Head & Neck Surgery; University Hospital Aintree; Liverpool UK
| | - R. Pinto
- School of Medicine; University of Liverpool; Liverpool UK
| | - S. Tandon
- Department of Otorhinolaryngology - Head & Neck Surgery; University Hospital Aintree; Liverpool UK
| | - T.M. Jones
- Department of Otorhinolaryngology - Head & Neck Surgery; University Hospital Aintree; Liverpool UK
- Liverpool Cancer Research Centre; Department of Molecular & Clinical Cancer Medicine; University of Liverpool; Liverpool UK
| | - J. Lancaster
- Department of Otorhinolaryngology - Head & Neck Surgery; University Hospital Aintree; Liverpool UK
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Mathew A, Agarwal J, Munshi A, Laskar S, Pramesh C, Prabhash K, Karimundackal G, Noronha V, Tandon S, Jambhekar N, Dikshit R. A Prospective Study of Telephonic Contact and Subsequent Physical Follow-up of Radically Treated Lung Cancer Patients. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.287] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Mittal A, Tandon S, Singla SK, Tandon C. In vitro inhibition of calcium oxalate crystallization and crystal adherence to renal tubular epithelial cells by Terminalia arjuna. Urolithiasis 2015; 44:117-25. [DOI: 10.1007/s00240-015-0822-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2015] [Accepted: 09/07/2015] [Indexed: 11/24/2022]
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Wong SC, Scott D, Lim A, Tandon S, Ebeling PR, Zacharin M. Mild Deficits of Cortical Bone in Young Adults With Klinefelter Syndrome or Anorchia Treated With Testosterone. J Clin Endocrinol Metab 2015; 100:3581-9. [PMID: 26186297 DOI: 10.1210/jc.2015-1705] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
CONTEXT There are currently no data evaluating volumetric bone mineral density (BMD), bone geometry, and body composition in adults with Klinefelter syndrome (KS) or anorchia who have been treated with T from adolescence. OBJECTIVE To determine volumetric BMD, bone geometry using peripheral quantitative computed tomography (pQCT), and body composition using dual-energy x-ray absorptiometry (DXA) in men with classical KS or anorchia treated with T from adolescence (age, <16 y), compared with matched controls. METHODS Twenty subjects (12 KS, eight anorchia) and 20 controls underwent a pQCT (66% tibia, 4% radius) and total body DXA. RESULTS Using adjusted regression models, there was reduced tibial cortical area (95% confidence interval [CI], -88.8 to -4.4 mm(2); P = .03) and thickness (95% CI, -0.98 to -0.10 mm; P = .02) in subjects. All other bone parameters were similar between groups. Subjects had significantly higher fat mass (95% CI, 1.6 to 14.9 kg; P = .02), trunk:leg fat ratio (95% CI, 0.09 to 0.60; P = .01), and visceral adipose mass (95% CI, 0.057 to 0.283 kg; P = .004). Lean mass was similar in both groups. Lean mass was positively associated with tibial cortical area and radial total, trabecular, and volumetric density (P < .05). CONCLUSION This first report using pQCT and DXA in men with KS or anorchia treated from adolescence showed normal volumetric BMD but reduction in cortical area and thickness, only at the 66% tibia site. Our study also demonstrated for the first time that men with KS or anorchia have increased visceral adiposity despite T treatment.
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Affiliation(s)
- Sze Choong Wong
- Developmental Endocrinology Research Group (S.C.W.), Royal Hospital for Sick Children, University of Glasgow, Glasgow G5 0UN, United Kingdom; Department of Medicine (D.S., P.R.E.), School of Clinical Sciences, Faculty of Medicine, Nursing and Health Sciences, Monash University, Clayton, Melbourne, Victoria 3168, Australia; Department of Medicine (D.S.), Northwest Academic Centre, The University of Melbourne, St Albans, Melbourne, Victoria 3021, Australia; Hormone Research (A.L., S.T., M.Z.), Murdoch Children's Research Institute, Melbourne, Parkville, Victoria 3052, Australia; and Department of Endocrinology (M.Z.), Royal Children's Hospital, Melbourne, Parkville, Victoria 3052, Australia
| | - David Scott
- Developmental Endocrinology Research Group (S.C.W.), Royal Hospital for Sick Children, University of Glasgow, Glasgow G5 0UN, United Kingdom; Department of Medicine (D.S., P.R.E.), School of Clinical Sciences, Faculty of Medicine, Nursing and Health Sciences, Monash University, Clayton, Melbourne, Victoria 3168, Australia; Department of Medicine (D.S.), Northwest Academic Centre, The University of Melbourne, St Albans, Melbourne, Victoria 3021, Australia; Hormone Research (A.L., S.T., M.Z.), Murdoch Children's Research Institute, Melbourne, Parkville, Victoria 3052, Australia; and Department of Endocrinology (M.Z.), Royal Children's Hospital, Melbourne, Parkville, Victoria 3052, Australia
| | - Angelina Lim
- Developmental Endocrinology Research Group (S.C.W.), Royal Hospital for Sick Children, University of Glasgow, Glasgow G5 0UN, United Kingdom; Department of Medicine (D.S., P.R.E.), School of Clinical Sciences, Faculty of Medicine, Nursing and Health Sciences, Monash University, Clayton, Melbourne, Victoria 3168, Australia; Department of Medicine (D.S.), Northwest Academic Centre, The University of Melbourne, St Albans, Melbourne, Victoria 3021, Australia; Hormone Research (A.L., S.T., M.Z.), Murdoch Children's Research Institute, Melbourne, Parkville, Victoria 3052, Australia; and Department of Endocrinology (M.Z.), Royal Children's Hospital, Melbourne, Parkville, Victoria 3052, Australia
| | - Smriti Tandon
- Developmental Endocrinology Research Group (S.C.W.), Royal Hospital for Sick Children, University of Glasgow, Glasgow G5 0UN, United Kingdom; Department of Medicine (D.S., P.R.E.), School of Clinical Sciences, Faculty of Medicine, Nursing and Health Sciences, Monash University, Clayton, Melbourne, Victoria 3168, Australia; Department of Medicine (D.S.), Northwest Academic Centre, The University of Melbourne, St Albans, Melbourne, Victoria 3021, Australia; Hormone Research (A.L., S.T., M.Z.), Murdoch Children's Research Institute, Melbourne, Parkville, Victoria 3052, Australia; and Department of Endocrinology (M.Z.), Royal Children's Hospital, Melbourne, Parkville, Victoria 3052, Australia
| | - Peter R Ebeling
- Developmental Endocrinology Research Group (S.C.W.), Royal Hospital for Sick Children, University of Glasgow, Glasgow G5 0UN, United Kingdom; Department of Medicine (D.S., P.R.E.), School of Clinical Sciences, Faculty of Medicine, Nursing and Health Sciences, Monash University, Clayton, Melbourne, Victoria 3168, Australia; Department of Medicine (D.S.), Northwest Academic Centre, The University of Melbourne, St Albans, Melbourne, Victoria 3021, Australia; Hormone Research (A.L., S.T., M.Z.), Murdoch Children's Research Institute, Melbourne, Parkville, Victoria 3052, Australia; and Department of Endocrinology (M.Z.), Royal Children's Hospital, Melbourne, Parkville, Victoria 3052, Australia
| | - Margaret Zacharin
- Developmental Endocrinology Research Group (S.C.W.), Royal Hospital for Sick Children, University of Glasgow, Glasgow G5 0UN, United Kingdom; Department of Medicine (D.S., P.R.E.), School of Clinical Sciences, Faculty of Medicine, Nursing and Health Sciences, Monash University, Clayton, Melbourne, Victoria 3168, Australia; Department of Medicine (D.S.), Northwest Academic Centre, The University of Melbourne, St Albans, Melbourne, Victoria 3021, Australia; Hormone Research (A.L., S.T., M.Z.), Murdoch Children's Research Institute, Melbourne, Parkville, Victoria 3052, Australia; and Department of Endocrinology (M.Z.), Royal Children's Hospital, Melbourne, Parkville, Victoria 3052, Australia
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Sciammarella MG, Gerson M, Buxton AE, Bartley SC, Doukky R, Merlino DA, Tandon S, Thompson R, Travin MI. ASNC/SNMMI Model Coverage Policy: Myocardial sympathetic innervation imaging: Iodine-123 meta-iodobenzylguanidine ((123)I-mIBG). J Nucl Cardiol 2015; 22:804-11. [PMID: 26163203 DOI: 10.1007/s12350-015-0202-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Chhabra N, Chhabra A, Tandon S. Orofacial manifestations and dental considerations in association with Varadi-Papp syndrome: report of a rare case. Eur Arch Paediatr Dent 2015; 17:65-70. [PMID: 26159782 DOI: 10.1007/s40368-015-0193-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2015] [Accepted: 06/01/2015] [Indexed: 10/23/2022]
Abstract
Varadi-Papp syndrome or oral-facial-digital syndrome type VI (OFDS VI) is a rare, autosomal recessive disorder characterised by a specific congenital malformation of the cerebellum and a broad spectrum of other phenotypic findings. It is distinguished from other OFDSs by metacarpal abnormalities with central polydactyly and by cerebellar abnormalities. Treatment for such patients is often considered challenging due to the presence of intellectual disability, hypotonia, and abnormal respiratory pattern in these patients. The present article reports the oral and systemic manifestations of a 5-year-old female patient having Varadi-Papp syndrome, considerations taken in her dental treatment and the successful management performed. The patient was followed up every 3 months for 2 years, to evaluate plaque control and to continue with the plaque control regimen. Periodic oral examinations and maintenance of good oral hygiene helped to improve the quality of life of the child. This case illustrates the favourable treatment outcomes in a Varadi-Papp syndrome patient. Furthermore, the need for periodic oral examinations and maintenance of good oral hygiene to prevent any complications in such patients has been highlighted.
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Affiliation(s)
- N Chhabra
- Department of Pedodontics and Preventive Dentistry, Maulana Azad Institute of Dental Sciences, Delhi, India.
| | - A Chhabra
- Department of Dental Surgery, Safdarjang Hospital, Delhi, India
| | - S Tandon
- Department of Periodontics, Maulana Azad Institute of Dental Sciences, Delhi, India
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Sharma S, Dewan A, Dewan A, Pahuja A, Pal M, Rawat S, Mitra S, Sharma M, Tandon S, Narang R, Mishra M. P0013 Role of adaptive radiotherapy in locally advanced head and neck cancer: A dosimetric analysis. Eur J Cancer 2015. [DOI: 10.1016/j.ejca.2015.06.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Tyagi M, Sharma S, Dewan A, Tandon S, Yadav G, Wadhwan G, Bhushan M, Kumar L, Bandyopadhyay H. EP-1617: Assessment of set-up errors in frameless fractionated SRT of cranial lesions with CBCT and immobilization cast. Radiother Oncol 2015. [DOI: 10.1016/s0167-8140(15)41609-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Mushi E, Kinshuck A, Svecova N, Schache A, Jones T, Tandon S, Lancaster J. The use of Tisseel™fibrin sealant in selective neck dissection - a retrospective study in a tertiary Head and Neck Surgery centre. Clin Otolaryngol 2015; 40:93-7. [DOI: 10.1111/coa.12322] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/03/2014] [Indexed: 11/29/2022]
Affiliation(s)
- E. Mushi
- Otolaryngology and Head and Neck Department; Aintree University Hospital; Liverpool UK
| | - A. Kinshuck
- Otolaryngology and Head and Neck Department; Aintree University Hospital; Liverpool UK
| | - N. Svecova
- Otolaryngology and Head and Neck Department; Aintree University Hospital; Liverpool UK
| | - A. Schache
- Otolaryngology and Head and Neck Department; Aintree University Hospital; Liverpool UK
- Department of Molecular and Clinical Cancer Medicine; Liverpool University; Liverpool UK
| | - T.M. Jones
- Otolaryngology and Head and Neck Department; Aintree University Hospital; Liverpool UK
- Department of Molecular and Clinical Cancer Medicine; Liverpool University; Liverpool UK
| | - S. Tandon
- Otolaryngology and Head and Neck Department; Aintree University Hospital; Liverpool UK
| | - J. Lancaster
- Otolaryngology and Head and Neck Department; Aintree University Hospital; Liverpool UK
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Abstract
The in utero environment is a key factor controlling the fate of the growing embryo. The deleterious effects of statins during the fetal development are still not very well understood. Data from animal studies and retrospective studies performed in pregnant women give conflicting reports. In this study, using in vitro differentiation model of embryonic stem cells, which mimic the differentiation process of the embryo, we have systematically exposed the cells to lipophilic statins, simvastatin, and atorvastatin at various doses and at critical times during differentiation. The analysis of key genes controlling the differentiation into ecto-, meso- and endodermal lineages was assessed by quantitative polymerase chain reaction. Our results show that genes of the mesodermal lineage were most sensitive to statins, leading to changes in the transcript levels of brachyury, Flk-1, Nkx2.5, and α/β-myosin heavy chain. In addition, changes to endodermal marker α-fetoprotein, along with ectodermal Nes and Neurofilament 200 kDa, imply that during early differentiation exposure to these drugs leads to altered signaling, which could translate to the congenital abnormalities seen in the heart and limbs.
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Affiliation(s)
- S Jyoti
- Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology, Biotechnology & Bioinformatics, Solan, India
| | - S Tandon
- Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology, Biotechnology & Bioinformatics, Solan, India
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Yadav N, Lamba AK, Thakur A, Faraz F, Tandon S, Pahwa P. Effect of periodontal therapy on lactoferrin levels in gingival crevicular fluid. Aust Dent J 2014; 59:314-20. [PMID: 24913177 DOI: 10.1111/adj.12203] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/16/2013] [Indexed: 12/17/2022]
Abstract
BACKGROUND The aim of this study was to evaluate lactoferrin quantification as a sensitive and objective method of detecting the degree of periodontal inflammation, oxidative stress and to monitor the effects of periodontal therapy. METHODS Fifty subjects were divided into two groups based on gingival index, probing pocket depth, clinical attachment loss and alveolar bone loss: healthy group and periodontitis group with generalized chronic periodontitis. Non-surgical periodontal therapy was rendered and crevicular fluid samples collected at baseline and four weeks after therapy for lactoferrin quantification using enzyme linked immunosorbent assay. The correlation between clinical parameters and lactoferrin levels was drawn and analysed for both groups. RESULTS The mean level of crevicular lactoferrin in the periodontitis group was 1857.21 ng/ml. The mean level decreased to 1415.03 ng/ml after treatment. The lowest lactoferrin concentration was seen in the healthy group (75.34 ng/ml). All clinical parameters correlated positively with lactoferrin levels. CONCLUSIONS The lactoferrin level was higher in the periodontitis group compared to the healthy group, and reduced with periodontal therapy. Higher levels were associated with higher values of clinical parameters, both before and after therapy. The data indicates that Lactoferrin plays an important role in periodontal disease and crevicular lactoferrin quantification can be a marker for detecting periodontal inflammation, oxidative stress and monitoring periodontal therapy.
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Affiliation(s)
- N Yadav
- Department of Periodontics, Maulana Azad Institute of Dental Sciences, New Delhi, India
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