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Suresh P, Natarajan A, Rajaram A. Multi-Active Sites Loaded NiCu-MOF@MWCNTs as a Bifunctional Electrocatalyst for Electrochemical Water Splitting Reaction. Langmuir 2024; 40:9509-9519. [PMID: 38648179 DOI: 10.1021/acs.langmuir.4c00054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
Water can be sustainably and ecologically converted by electrocatalysts into hydrogen and oxygen, which, in turn, can be converted into energy. However, the advancement of using water as green energy is hampered by limitations in the study of high-performance catalysts. The purpose of this study was to construct an electrocatalyst by anchoring well-dispersed multiwalled carbon nanotubes (MWCNTs) on nickel-copper (NiCu-MOF) nanoblocks through a simple solvothermal method. The synthesis of NiCu-MOF@MWCNTs demonstrated exceptional electrocatalytic performance for the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) in an alkaline medium. At 10 mA cm-2 in 1.0 M KOH, the OER and HER performance of the catalyst displays a relatively low overpotential, with only 220 and 78 mV, respectively. Furthermore, the catalytic activity remained unchanged for 24 h in 1.0 M KOH. This performance was superior to the majority of electrocatalysts that have been reported. This was achieved by utilizing the strong synergy that exists between MWCNTs and bimetallic (Ni-Cu) nano blocks present in the metal-organic framework. The enhanced electrocatalytic activity of the nanocomposite can be attributed to the synergistic impact caused by its various components.
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Affiliation(s)
- Pavithra Suresh
- Department of Chemistry, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu 603 203, India
| | - Abirami Natarajan
- Department of Chemistry, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu 603 203, India
| | - Arulmozhi Rajaram
- Department of Chemistry, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu 603 203, India
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Suresh P, Muthukrishnan K, Ramassamy E, Gajula Shivashankarappa P. 'M' mechanics for midline diastema correction in mixed dentition. BMJ Case Rep 2023; 16:e256179. [PMID: 37739442 PMCID: PMC10533716 DOI: 10.1136/bcr-2023-256179] [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] [Indexed: 09/24/2023] Open
Abstract
Maxillary midline diastema is a self-correcting anomaly which in few conditions may get retained in adolescence stage due to various aetiological factors and correction of which is usually done at permanent dentition stage. The persistence of midline diastema can be predicted in mixed dentition period and necessary management could be provided at the mixed dentition period. This case report is on a novel technique using 'M' spring to correct the midline diastema in mixed dentition period.
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Affiliation(s)
- Pavithra Suresh
- Pediatric and Preventive Dentistry, Indira Gandhi Institute of Dental Sciences, Sri Balaji Vidyapeeth, (Deemed to be University), Pondicherry, India
| | - Kavitha Muthukrishnan
- Department of Paediatric and Preventive Dentistry, Mahatma Gandhi Post Graduate Institute of Dental Sciences, Government of Puducherry Institution, Pondicherry, Puducherry, India
| | - Eswari Ramassamy
- Pediatric and Preventive Dentistry, Indira Gandhi Institute of Dental Sciences, Sri Balaji Vidyapeeth, (Deemed to be University), Pondicherry, India
| | - Prathima Gajula Shivashankarappa
- Pediatric and Preventive Dentistry, Indira Gandhi Institute of Dental Sciences, Sri Balaji Vidyapeeth, (Deemed to be University), Pondicherry, India
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Raj SNM, Jothi VK, Rajaram A, Suresh P, Murugan K, Natarajan A. Rational design of α-MnO 2/HT-GCN nanocomposite for effective photocatalytic degradation of ciprofloxacin and pernicious activity. Environ Sci Pollut Res Int 2023; 30:90689-90707. [PMID: 37464206 DOI: 10.1007/s11356-023-28636-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 07/02/2023] [Indexed: 07/20/2023]
Abstract
The present study is mainly concerned with the development of cost-efficient composite material utilized to produce one-dimensional manganese oxide (α-MnO2) nanoparticles coated on two-dimensional graphitic carbon nitrides (HT-GCN) as nanocomposite (α-MnO2/HT-GCN) for highly efficient CIP degradation. The α-MnO2 nanoparticles (NPs) were prepared by a simple hydrothermal technique before being decorated on HT-GCN (H denotes protonation and T represents thermal-decomposition-graphitic carbon nitride). Tauc plots were used to calculate the band gap values of the photocatalysts α-MnO2 (1.74 eV), GCN (2.84 eV), HT-GCN (2.63 eV), and α-MnO2/HT-GCN (2.31 eV). The mechanism was investigated by various scavengers, particularly isopropanol (•OH) makes a significant role in the photodegradation process. The degradation percentage for ciprofloxacin was 89.2% and the rate of reaction R2 = 0.9913. This study demonstrates a unique method for developing a heterojunction-based nanocomposite of α-MnO2/HT-GCN, which exhibit better light absorption performance.
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Affiliation(s)
- Sherlin Nivetha Michael Raj
- Department of Chemistry, Faculty of Engineering and Technology, SRM Institute of Science & Technology, Tamil Nadu, Kattankulathur, 603203, India
| | - Vinoth Kumar Jothi
- Department of Chemistry, Faculty of Engineering and Technology, SRM Institute of Science & Technology, Tamil Nadu, Kattankulathur, 603203, India
| | - Arulmozhi Rajaram
- Department of Chemistry, Faculty of Engineering and Technology, SRM Institute of Science & Technology, Tamil Nadu, Kattankulathur, 603203, India
| | - Pavithra Suresh
- Department of Chemistry, Faculty of Engineering and Technology, SRM Institute of Science & Technology, Tamil Nadu, Kattankulathur, 603203, India
| | - Komal Murugan
- Department of Chemistry, Faculty of Engineering and Technology, SRM Institute of Science & Technology, Tamil Nadu, Kattankulathur, 603203, India
| | - Abirami Natarajan
- Department of Chemistry, Faculty of Engineering and Technology, SRM Institute of Science & Technology, Tamil Nadu, Kattankulathur, 603203, India.
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Raveendran R, Nath SG, Suresh P. Applications of Artificial Intelligence in the field of therapies focused on orofacial cleft repair and rehabilitation. J Autonom Intell 2023; 6:681. [DOI: 10.32629/jai.v6i2.681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2023]
Abstract
<p>Orofacial clefts are common congenital malformations with genetic and environmental risk factors. The management of cleft lip and palate spreads over the course of the child’s development into adulthood. Currently Artificial Intelligence (AI) has gained much popularity in the dental field. AI is of much help in the multidisciplinary management of cleft lip and cleft palate repair starting right from the prenatal period itself. This review focuses on the available documentation in the literature that has thrown light on the recent applications of AI in cleft lip and palate cases.</p>
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Patel A, Shankaran R, Singh H, Bhatnagar S, Dash S, Mukherjee P, Rathore A, Chatterjee T, Mishra A, Suresh P. Cancer trends and burden among Armed Forces personnel, veterans and their families: Cancer registry data analysis from tertiary care hospital. Med J Armed Forces India 2023; 79:141-151. [PMID: 36969131 PMCID: PMC10037057 DOI: 10.1016/j.mjafi.2020.09.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Accepted: 09/28/2020] [Indexed: 10/21/2022] Open
Abstract
Background Cancer incidence is rising across the globe. The incidence and patterns of various cancers among Armed Forces Personnel and Veterans is not known. We did the analysis of registry data maintained at our hospital. Methods A retrospective analysis was performed of all patients registered at our hospital cancer registry between 01st January 2017 and 31st December 2019. Patients were registered with unique identification number. Baseline demographics and cancer subtype data were retrieved. Patients with histopathologically proven diagnosis and age ≥18 years were studied. Armed Forces Personnel (AFP) were defined as those who are in active service, and Veterans as those who had retired from service at the time of registration. Patients with Acute and Chronic Leukemias were excluded. Results New cases registered were 2023, 2856 and 3057 in year 2017, 2018, 2019 respectively. AFP, Veterans and dependents among them were 9.6%, 17.8%, and 72.6% respectively. Haryana, Uttar Pradesh and Rajasthan represented 55% of all cases with male to female ratio 1.14:1 and median age was 59 years. The median age among AFP was 39 years. Among AFP as well as veterans, Head and Neck cancer was the most common malignancy. Cancer incidence was significantly higher in adults >40 years as compared to <40 years. Conclusion Seven percent rise per year of new cases in this cohort is alarming. Tobacco-related cancers were the most common. There is an unmet need to establish a prospective centralized Cancer Registry to better understand the risk factors, outcomes of treatment and strengthen the policy matters.
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Affiliation(s)
- Amol Patel
- Medical Oncologist, Army Hospital (R&R), Delhi Cantt, India
| | - R. Shankaran
- Head of Department (Surgery Oncology), INHS Ashwini, Mumbai, India
| | - H.P. Singh
- Head of Department (Medical Oncology), Army Hospital (R&R), Delhi Cantt, India
| | - S. Bhatnagar
- Additional DGAFMS (MR, H & Trg), O/o DGAFMS, New Delhi, India
| | - S.C. Dash
- Dy Commandant, Army Hospital (R&R), Delhi Cantt, India
| | - P. Mukherjee
- Head of Department (Nuclear Medicine), Army Hospital (R&R), Delhi Cantt, India
| | - Anvesh Rathore
- Medical Oncologist, Army Hospital (R&R), Delhi Cantt, India
| | | | - Atul Mishra
- Senior Adviser (Radiology), Army Hospital (R&R), Delhi Cantt, India
| | - P. Suresh
- Senior Adviser (Medicine) & Medical Oncologist, Army Hospital (R&R), Delhi Cantt, India
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Uberoi R, Haslam P, Suresh P, Morgan R. Meeting the needs of future UK interventional radiology: launch of year 1 interventional radiology trainee programme. Clin Radiol 2023:S0009-9260(23)00102-2. [PMID: 37100692 DOI: 10.1016/j.crad.2023.03.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 03/12/2023] [Accepted: 03/14/2023] [Indexed: 03/29/2023]
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Suresh P, Jasmin S, Yen Y, Hsu HJ, Varinthra P, Pairojana T, Chen CC, Liu IY. Attenuation of HECT-E3 ligase expression rescued memory deficits in 3xTg-AD mice. Front Aging Neurosci 2022; 14:916904. [PMID: 35966798 PMCID: PMC9372289 DOI: 10.3389/fnagi.2022.916904] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Accepted: 07/11/2022] [Indexed: 01/07/2023] Open
Abstract
Alzheimer's disease (AD) is one of the most common progressive neurodegenerative disorders that cause deterioration of cognitive functions. Recent studies suggested that the accumulation of inflammatory molecules and impaired protein degradation mechanisms might both play a critical role in the progression of AD. Autophagy is a major protein degradation pathway that can be controlled by several HECT-E3 ligases, which then regulates the expression of inflammatory molecules. E3 ubiquitin ligases are known to be upregulated in several neurodegenerative diseases. Here, we studied the expressional change of HECT-E3 ligase using M01 on autophagy and inflammasome pathways in the context of AD pathogenesis. Our results demonstrated that the M01 treatment reversed the working memory deficits in 3xTg-AD mice when examined with the T-maze and reversal learning with the Morris water maze. Additionally, the electrophysiology recordings indicated that M01 treatment enhanced the long-term potentiation in the hippocampus of 3xTg-AD mice. Together with the improved memory performance, the expression levels of the NLRP3 inflammasome protein were decreased. On the other hand, autophagy-related molecules were increased in the hippocampus of 3xTg-AD mice. Furthermore, the protein docking analysis indicated that the binding affinity of M01 to the WWP1 and NEDD4 E3 ligases was the highest among the HECT family members. The western blot analysis also confirmed the decreased expression level of NEDD4 protein in the M01-treated 3xTg-AD mice. Overall, our results demonstrate that the modulation of HECT-E3 ligase expression level can be used as a strategy to treat early memory deficits in AD by decreasing NLRP3 inflammasome molecules and increasing the autophagy pathway.
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Affiliation(s)
- Pavithra Suresh
- Institute of Medical Sciences, Tzu Chi University, Hualien City, Taiwan
| | - Sureka Jasmin
- Department of Molecular Biology and Human Genetics, Tzu Chi University, Hualien City, Taiwan
| | - Yun Yen
- Ph.D. Program for Cancer Molecular Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei City, Taiwan
- Graduate Institute of Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei City, Taiwan
- TMU Research Center of Cancer Translational Medicine, Taipei Medical University, Taipei City, Taiwan
- Cancer Center, Taipei Municipal WanFang Hospital, Taipei City, Taiwan
- Center for Cancer Translational Research, Tzu Chi University, Hualien City, Taiwan
| | - Hao-Jen Hsu
- Department of Life Sciences, Tzu Chi University, Hualien City, Taiwan
| | | | - Tanita Pairojana
- Institute of Medical Sciences, Tzu Chi University, Hualien City, Taiwan
| | - Chien-Chang Chen
- Institute of Biomedical Sciences, Academia Sinica, Taipei City, Taiwan
| | - Ingrid Y. Liu
- Institute of Medical Sciences, Tzu Chi University, Hualien City, Taiwan
- *Correspondence: Ingrid Y. Liu
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Ramu P, Vimal SP, Suresh P, Sanmugam A, Saravanakumar U, Kumar RS, Almansour AI, Arumugam N, Vikraman D. Investigation of the one-step electrochemical deposition of graphene oxide-doped poly(3,4-ethylenedioxythiophene)-polyphenol oxidase as a dopamine sensor. RSC Adv 2022; 12:15575-15583. [PMID: 35685176 PMCID: PMC9125988 DOI: 10.1039/d2ra00791f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Accepted: 03/14/2022] [Indexed: 12/04/2022] Open
Abstract
In this paper, we fabricated poly(3,4-ethylenedioxythiophene) (PEDOT)-graphene oxide-polyphenol oxidase (PEDOT-GO-PPO) as a dopamine sensor. The morphology of PEDOT-GO-PPO was observed using scanning electron microscopy. Cyclic voltammetry was conducted to study the oxidation-reduction characteristics of dopamine. To optimize the pH, potential and limit of detection of dopamine, the amperometric technique was employed. The found limit of detection was 8 × 10-9 M, and the linear range was from 5 × 10-8 to 8.5 × 10-5 M. The Michaelis-Menten constant (K m) was calculated to be 70.34 μM, and the activation energy of the prepared electrode was 32.75 kJ mol-1. The electrode shows no significant change in the interference study. The modified electrode retains up to 80% of its original activity after 2 months. In the future, the biosensor can be used for the quantification of dopamine in human urine samples. The present modified electrode constitutes a tool for the electrochemical analysis of dopamine.
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Affiliation(s)
- P Ramu
- Department of Electronics and Communication Engineering, Jaya Institute of Technology Tamilnadu India
| | - S P Vimal
- Department of Electronics and Communication Engineering, Jaya Institute of Technology Tamilnadu India
- Department of Electronics and Communication Engineering, Sri Ramakrishna Engineering College Coimbatore India
| | - P Suresh
- Department of Electronics and Communication Engineering, Vel Tech Rangarajan Dr Sagunthala R & D Institute of Science and Technology Chennai Tamilnadu 600062 India
| | - Anandhavelu Sanmugam
- Department of Applied Chemistry, Sri Vanketeswara College of Engineering Pennalur, Sriperambudur 602117 Chennai India
| | - U Saravanakumar
- Department of Electronics and Communication Engineering, Muthayammal Engineering College Rasipuram Tamilnadu India
| | - Raju Suresh Kumar
- Department of Chemistry, College of Science, King Saud University Riyadh 11451 Saudi Arabia
| | | | - Natarajan Arumugam
- Department of Chemistry, College of Science, King Saud University Riyadh 11451 Saudi Arabia
| | - Dhanasekaran Vikraman
- Division of Electronics and Electrical Engineering, Dongguk University-Seoul Seoul 04620 Korea
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Mailapalli S, Kumar R, Suresh P, Singhal A, Singh S. Clinicopathological Profile and 2 Year Relapse Rates of Non-Hodgkin's Lymphoma in Tertiary Care Center. J Assoc Physicians India 2022; 70:11-12. [PMID: 35443543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The aim and objectives are to study clinicopathological profiles and 2-year relapse rates of Non-Hodgkin lymphoma,Material :This prospective observational study was conducted from Jan 2017 to May 2021. All newly diagnosed patients of NHL were enrolled and received a CHOP±R regimen for 6 cycles as per B-cell or T-cell lineage. The data was and analyzed using spss software. Observation: A total of 50 patients were enrolled and followed for 2 years. The median age of presentation was 44.62±15.92. Commonest clinical presentation was lymphadenopathy (46%), followed by B symptoms (32%). Commonest clinical sign was lymph node enlargement (52%). The commonest extranodal presentation was hepatomegaly (22%) and splenomegaly (22%). On peripheral blood smear, macrocytic hypochromic anemia (12%) was the commonest presentation. CT Scan showed, nodal involvement in 86% with generalized lymphadenopathy in (40%) cases. Extranodal involvement was seen in 50%. WB PET showed nodal involvement in (90%), and extranodal involvement in 70%. PET scan (90%) was a little more sensitive for detecting lymph node involvement over CT scan (86%). On lymph node biopsy, the most common subtype was B cell NHL (84.84%) and the commonest histopathological subtype was diffuse large cell B cell lymphoma. Biopsy from the extranodal site shown B cell NHL in (93.33%). The commonest histopathological subtype was DLBCL (18%). On marrow examination and biopsy, 88% were B cell type and the commonest type was DLBCL (62%). The commonest treatment-related toxicity was febrile neutropenia (44%). At 6 months, 30% were having clinical active disease and PET imaging revealed radiologic disease activity in 32 %. At 12 months, 14% were having clinical disease, and radiologic disease activity in 14%. At 18 months, 5% were having clinical disease, and radiologic disease activity in 10%. At 24 months, 14% were having clinical disease, and radiologic disease activity in 14%. At the end of the study period, 78 % were in remission, 10% cases in relapse, 6% cases had progressive disease and 6% of cases expired. Conclusion: This study found 02-year survival post standard chemotherapy in NHL cases was 88%. The relapse rate at 24 months was 14%. The B symptoms were seen less commonly, and bulky disease was noted in one-third of cases. The role of PET in diagnosing and follow up on these cases was good but it was comparable with CT scan.
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Affiliation(s)
| | | | - P Suresh
- Army Hospital Research and Referral, New Delhi
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Liu I, Varinthra P, Suresh P, Chokkalingam P, Ibiayo A. Anti-inflammatory and memory-enhancing properties of Chinese herbal extracts: The possible application in Alzheimer's disease. Tzu Chi Med J 2022. [DOI: 10.4103/tcmj.tcmj_139_22] [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: 11/04/2022] Open
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Guleria B, Viswanath S, Soneji D, Kapoor R, Guleria P, Suresh P, Kumar M, Patel A, Swamy S. Cancer in the Adolescent and Young Adults (AYA) and Children: A Comprehensive Analysis of the Epidemiology and Psychosocial Morbidity in the Indian Population. South Asian J Cancer 2021; 11:73-81. [PMID: 35833048 PMCID: PMC9273329 DOI: 10.1055/s-0041-1735482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Aims
Adolescent and young adults (AYAs), children with cancer, and their guardians have unique psychosocial morbidities adversely effecting quality of life (QOL). This is measurable using patented tools. We analyzed epidemiological and clinicopathological patterns of solid organ cancers in this subgroup. We also assessed psychosocial morbidity and changes in QOL faced by them.
Methods
All patients aged 2 to 39 years, newly diagnosed with cancer from April 2017 to March 2019 were included. Clinical history, diagnosis, staging, treatment, outcomes, and follow-up were recorded. The National Comprehensive Cancer Network (NCCN) distress thermometer and European Organization for Research and Treatment of Cancer Quality of Life Questionnaire (EORTC QLQ C-30) were used to assess psychosocial morbidity of AYAs, children ≥ 12 years, and parents of children < 12 years. Pediatric Quality of Life Inventory (Peds QL) version 3.0 was used for children < 12 years. Data was analyzed using descriptive statistics.
Results
A total of 571 patients (512 AYAs, 59 children) were enrolled. Median age was 30 years with male predominance (58.1%). Most cases (98.6%) were absent from school or work. Carcinoma breast was the most common in females (29.3%) and non-Hodgkin lymphoma in males (12.6%). 91.06% had overall NCCN distress score ≥ 4. Also, 73.81 and 79.49% had “quite a bit” or “very much” responses on functional and symptom scales, respectively, in EORTC QLQ C-30 questionnaire. Peds QL version 3.0 revealed total score ranging from 276 to 523 for each patient.
Conclusion
AYAs and children with cancer are extremely vulnerable to psychological stress and morbidity. Use of well-established tools help in assessing their mental status and timely psychiatric referral can be initiated.
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Affiliation(s)
- Bhupesh Guleria
- Department of Medical Oncology, Malignant Diseases Treatment Center, Command Hospital (Southern Command), Pune, Maharashtra, India
| | - S. Viswanath
- Department of Medical Oncology, Malignant Diseases Treatment Center, Command Hospital (Central Command), Lucknow, Uttar Pradesh, India
| | - Dharmesh Soneji
- Department of Medical Oncology, Malignant Diseases Treatment Center, Army Hospital Research and Referral, New Delhi, India
| | - Rajan Kapoor
- Department of Hematology, Command Hospital (Eastern Command), Kolkata, West Bengal, India
| | - Prerna Guleria
- Department of Pathology, Command Hospital (Southern Command), Pune, Maharashtra, India
| | - P. Suresh
- Department of Medical Oncology, Malignant Diseases Treatment Center, Army Hospital Research and Referral, New Delhi, India
| | - Manish Kumar
- Department of Medical Oncology, Malignant Diseases Treatment Center, Army Hospital Research and Referral, New Delhi, India
| | - Amol Patel
- Department of Medical Oncology, INHS ASVINI, Mumbai, Maharashtra, India
| | - Shivshankar Swamy
- Department of Medical Oncology, Malignant Diseases Treatment Center, Army Hospital Research and Referral, New Delhi, India
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Jayachandiran AP, Bose SV, Mahipathy SRV, Durairaj AR, Sundaramurthy N, Suresh P. Epidemiological Study of Fingertip Injuries in a Tertiary Care Center in Kancheepuram District, India. JPRI 2021. [DOI: 10.9734/jpri/2021/v33i63a35238] [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: 11/09/2022]
Abstract
Background and Aim: Although fingertip injuries are common, there is limited literature on its epidemiology. This study examines the clinical characteristics of fingertip injuries in adults treated at a tertiary medical hospital. The aim of the study is to investigate and examine the epidemiological variables impacting patients' fingertip injuries in a tertiary care hospital in Kancheepuram.
Methods: An epidemiological study of patients with fingertip injuries managed at a tertiary hospital in Kancheepuram over a period of twelve months (March 2020-March 2021). The patients’ profile as well as the clinical presentation, management options and the outcome of care of the patients were documented and analyzed using descriptive statistics.
Results: Fifty one fingertips patients were managed. The median age was 23.50 years, with 88% of male. 36 [70%] injuries involved accidents in their workplace. A total of 34 [66%] injuries occurred in the fingers of the right hand. The management offered included PSS (Primary Skin Suturing), V-Y flap, RHAF, Nail bed repair and K wire fixation. About 91.5 % of the patients reported a satisfactory outcome.
Conclusion: In the workplace, right-handed males between the ages of 18 and 25 are more prone to have fingertip injuries. While proper diagnosis and adequate response are critical for a positive result in fingertip injuries, a safer environment and workplace would assist to alleviate the burden.
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Logeswaran K, Suresh P. High utility itemset mining using genetic algorithm assimilated with off policy reinforcement learning to adaptively calibrate crossover operation. Comput Intell 2021. [DOI: 10.1111/coin.12490] [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: 11/27/2022]
Affiliation(s)
- K Logeswaran
- Department of Information Technology Kongu Engineering College Perundurai Tamil Nadu India
| | - P Suresh
- Department of Information Technology Kongu Engineering College Perundurai Tamil Nadu India
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Nair R, Kaushik MR, Kishore K, Singh HP, Vardhan V, Suresh P, Kumar M, Rathore A, Thareja S, Rana S, Bhuva D, Malviya A, Patel A. COVID-19, Cancer, and Congregation: An Observational Study from a Tertiary Care Hospital in New Delhi. Indian J Med Paediatr Oncol 2021. [DOI: 10.1055/s-0041-1729732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
Abstract
Objective Indian data on cancer patients with coronavirus disease 2019 (COVID-19) infection and its outcome are limited. Infectivity and outcome among cancer patients staying in large congregations are not known. We conducted this study to address this lacuna in literature.
Methods This was a retrospective–prospective, observational study of hospitalized cancer patients with proven COVID-19 infection, conducted at tertiary care hospital in New Delhi after ethical approval. We analyzed clinical, laboratorial parameters, and outcomes in these patients.
Results All 32 admitted male patients became COVID-19 positive and 10 (31%) patients were symptomatic. Median age was 37.5 years (range: 16–64). Sixteen health-care workers (HCWs) were working in the cancer ward (paramedical staff: 4, nurses: 6, residents: 4, and consultants: 2). Among HCWs, two nursing staff and three paramedical staff contracted asymptomatic COVID-19. Eighteen (56%) and 14 (44%) patients were on curative and palliative treatment, respectively. Leukopenia (total leukocyte count <4,000/μL) was seen in 37.5% of cases. Grades 4, 3, 2, and 1 neutropenia were present in 12.5% of patents. Two (6.25%) patients had features of critical COVID-19. Eight (25%) patients received treatment with hydroxychloroquine + azithromycin. Five patients died. Three patients had features of progressive disease with poor performance status. One critical COVID patient survived and one succumbed to COVID-19. Patients shared a common dining room, sanitation area.
Conclusion Seventy percent of cancer patients were asymptomatic. Cancer patients living in congregation areas are susceptible to COVID-19 with 3% mortality rate. Recent chemotherapy and associated cytopenias may not increase the risk in cancer patients with COVID-19 treated with curative intent. Palliative intended patients are at increased risk of death. N-95, personal protective equipment, and adherence to infection control measures should be encouraged.
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Affiliation(s)
- Rajesh Nair
- Department of Medical Oncology, Malignant Diseases Treatment Centre, Army Hospital Research and Referral, New Delhi, India
| | - M. R. Kaushik
- Department of Medical Oncology, Malignant Diseases Treatment Centre, Army Hospital Research and Referral, New Delhi, India
| | - Kislay Kishore
- Department of Medicine, Base Hospital, Delhi Cantt., New Delhi, India
| | - H. P. Singh
- Department of Medical Oncology, Malignant Diseases Treatment Centre, Army Hospital Research and Referral, New Delhi, India
| | - Vasu Vardhan
- Department of Medicine, Base Hospital, Delhi Cantt., New Delhi, India
| | - P. Suresh
- Department of Medical Oncology, Malignant Diseases Treatment Centre, Army Hospital Research and Referral, New Delhi, India
| | - Manish Kumar
- Department of Medical Oncology, Malignant Diseases Treatment Centre, Army Hospital Research and Referral, New Delhi, India
| | - Anvesh Rathore
- Department of Medical Oncology, Malignant Diseases Treatment Centre, Army Hospital Research and Referral, New Delhi, India
| | - Sandeep Thareja
- Department of Medicine, Base Hospital, Delhi Cantt., New Delhi, India
| | - Sandeep Rana
- Department of Medicine, Base Hospital, Delhi Cantt., New Delhi, India
| | - Dipen Bhuva
- Department of Medical Oncology, Malignant Diseases Treatment Centre, Army Hospital Research and Referral, New Delhi, India
| | - Anupam Malviya
- Department of Medical Oncology, Malignant Diseases Treatment Centre, Army Hospital Research and Referral, New Delhi, India
| | - Amol Patel
- Department of Medical Oncology, Malignant Diseases Treatment Centre, Army Hospital Research and Referral, New Delhi, India
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Raj S, Vinod V, Jayakumar J, Suresh P, Kumar A, Biswas R. Antifungal activity of Syzygium samarangense leaf extracts against Candida. Lett Appl Microbiol 2021; 73:31-38. [PMID: 33735468 DOI: 10.1111/lam.13471] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 03/08/2021] [Accepted: 03/09/2021] [Indexed: 11/26/2022]
Abstract
Candida species are opportunistic human fungal pathogens that cause acute and chronic infections against which only few antifungal agents are available. Here we have elucidated the antifungal effect of Syzygium samarangense leaf extracts (SSLE). Antifungal activity of SSLE was studied against Candida albicans, C. krusei, C. parapsilosis, C. glabrata, C. auris and C. tropicalis. Following experiments were performed: minimum fungicidal concentration (MFC) determination, agar well disc diffusion assays, fungal morphology analysis using scanning electron microscope (SEM), ex vivo fungal survival assays on porcine tongue and skin and in vivo fungal survival assays using Drosophila melanogaster fly model. Results demonstrated MFC of SSLE ranges between 100 and 125 mg ml-1 . SEM images showed cell wall degradation of C. albicans when treated with SSLE. Around 75% decrease in C. albicans viability was observed when infected porcine tongue and skin were treated using SSLE. The C. albicans infected D. melanogaster when fed with SSLE showed significant decrease (around 80%) of fungal count than the infected control. Furthermore, agar plate disc diffusion assays demonstrated that the antifungal activity of SSLE could be due to chalcone, which is one of the active constituents in SSLE. Our study demonstrated that SSLE could be used for the topical treatment of Candida infections.
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Affiliation(s)
- S Raj
- Centre for Nanosciences and Molecular Medicine, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
| | - V Vinod
- Centre for Nanosciences and Molecular Medicine, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
| | - J Jayakumar
- Centre for Nanosciences and Molecular Medicine, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
| | - P Suresh
- Centre for Nanosciences and Molecular Medicine, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
| | - A Kumar
- Department of Microbiology, Amrita Institute of Medical Sciences, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
| | - R Biswas
- Centre for Nanosciences and Molecular Medicine, Amrita Vishwa Vidyapeetham, Kochi, Kerala, India
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Pairojana T, Phasuk S, Suresh P, Huang SP, Pakaprot N, Chompoopong S, Hsieh TC, Liu IY. Age and gender differences for the behavioral phenotypes of 3xTg alzheimer's disease mice. Brain Res 2021; 1762:147437. [PMID: 33753066 DOI: 10.1016/j.brainres.2021.147437] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 02/14/2021] [Accepted: 03/13/2021] [Indexed: 02/08/2023]
Abstract
The triple transgenic Alzheimer's disease (3xTg-AD) strain is a common mouse model used for studying the pathology and mechanism of Alzheimer's disease (AD). The 3xTg-AD strain exhibits two hallmarks of AD, amyloid beta (Aβ) and neurofibrillary tangles. Several studies using different gender and age of 3xTg-AD mice to investigate their behavior phenotypes under the influence of various treatments have reported mixed results. Therefore, a comprehensive investigation on the optimal gender, age, and training paradigms used for behavioral studies of 3xTg-AD is necessary. In the present study, we investigated the behavioral phenotypes for the two genders of 3xTg-AD mice at 3, 6, 9, and 12 months old and compared the results with age-, gender-matched C57BL/6N control strain. All mice were subjected to tail flick, pinprick, open field, elevated plus maze, passive avoidance, and trace fear conditioning (TFC) tests to evaluate their sensory, locomotor, anxiety, and learning/memory functions. The results showed that TFC on male 3xTg-AD mice is optimal for studying the memory performance in AD. The sensory and locomotor functions of 3xTg-AD mice for two genders appear to be normal before 6 months, decline in fear memory afterwards. The differences between control and 3xTg-AD male mice in contextual and cued memory are robust, thus they are ideal for evaluating the effect of a treatment. Since it is costly and time consuming to obtain wildtype littermates as controls, C57BL/6N strain is suggested to be used as control mice because their baseline performance of sensorimotor functions are similar to that of 3xTg-AD mice.
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Affiliation(s)
- Tanita Pairojana
- Institute of Medical Sciences, Tzu Chi University, Hualien, Taiwan
| | - Sarayut Phasuk
- Institute of Medical Sciences, Tzu Chi University, Hualien, Taiwan; Department of Physiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Pavithra Suresh
- Institute of Medical Sciences, Tzu Chi University, Hualien, Taiwan
| | - Shun-Ping Huang
- Department of Molecular Biology and Human Genetics, Tzu Chi University, Hualien, Taiwan
| | - Narawut Pakaprot
- Department of Physiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Supin Chompoopong
- Department of Anatomy, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | | | - Ingrid Y Liu
- Institute of Medical Sciences, Tzu Chi University, Hualien, Taiwan.
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Phasuk S, Pairojana T, Suresh P, Yang CH, Roytrakul S, Huang SP, Chen CC, Pakaprot N, Chompoopong S, Nudmamud-Thanoi S, Liu IY. Enhanced contextual fear memory in peroxiredoxin 6 knockout mice is associated with hyperactivation of MAPK signaling pathway. Mol Brain 2021; 14:42. [PMID: 33632301 PMCID: PMC7908735 DOI: 10.1186/s13041-021-00754-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [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] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Accepted: 02/16/2021] [Indexed: 12/13/2022] Open
Abstract
Fear dysregulation is one of the symptoms found in post-traumatic stress disorder (PTSD) patients. The functional abnormality of the hippocampus is known to be implicated in the development of such pathology. Peroxiredoxin 6 (PRDX6) belongs to the peroxiredoxin family. This antioxidant enzyme is expressed throughout the brain, including the hippocampus. Recent evidence reveals that PRDX6 plays an important role in redox regulation and the modulation of several signaling molecules involved in fear regulation. Thus, we hypothesized that PRDX6 plays a role in the regulation of fear memory. We subjected a systemic Prdx6 knockout (Prdx6-/-) mice to trace fear conditioning and observed enhanced fear response after training. Intraventricular injection of lentivirus-carried mouse Prdx6 into the 3rd ventricle reduced the enhanced fear response in these knockout mice. Proteomic analysis followed by validation of western blot analysis revealed that several proteins in the MAPK pathway, such as NTRK2, AKT, and phospho-ERK1/2, cPLA2 were significantly upregulated in the hippocampus of Prdx6-/- mice during the retrieval stage of contextual fear memory. The distribution of PRDX6 found in the astrocytes was also observed throughout the hippocampus. This study identifies PRDX6 as a participant in the regulation of fear response. It suggests that PRDX6 and related molecules may have important implications for understanding fear-dysregulation associated disorders like PTSD.
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Affiliation(s)
- Sarayut Phasuk
- Institute of Medical Sciences, Tzu Chi University, Hualien, Taiwan
- Department of Physiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Tanita Pairojana
- Institute of Medical Sciences, Tzu Chi University, Hualien, Taiwan
| | - Pavithra Suresh
- Institute of Medical Sciences, Tzu Chi University, Hualien, Taiwan
| | - Chee-Hing Yang
- Department of Laboratory Medicine and Biotechnology, Tzu Chi University, Hualien, Taiwan
| | - Sittiruk Roytrakul
- National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Pathum Thani, Thailand
| | - Shun-Ping Huang
- Department of Molecular Biology and Human Genetics, Tzu Chi University, Hualien, Taiwan
| | - Chien-Chang Chen
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Narawut Pakaprot
- Department of Physiology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Supin Chompoopong
- Department of Anatomy, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Sutisa Nudmamud-Thanoi
- Department of Anatomy, Faculty of Medical Science, Naresuan University, Phitsanulok, Thailand
- Centre of Excellence in Medical Biotechnology, Faculty of Medical Science, Naresuan University, Phitsanulok, Thailand
| | - Ingrid Y. Liu
- Institute of Medical Sciences, Tzu Chi University, Hualien, Taiwan
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Varinthra P, Ganesan K, Huang SP, Chompoopong S, Eurtivong C, Suresh P, Wen ZH, Liu IY. The 4-(Phenylsulfanyl) butan-2-one Improves Impaired Fear Memory Retrieval and Reduces Excessive Inflammatory Response in Triple Transgenic Alzheimer's Disease Mice. Front Aging Neurosci 2021; 13:615079. [PMID: 33613267 PMCID: PMC7888344 DOI: 10.3389/fnagi.2021.615079] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Accepted: 01/06/2021] [Indexed: 12/14/2022] Open
Abstract
Alzheimer's disease (AD) is a neurodegenerative disease characterized by an excessive inflammatory response and impaired memory retrieval, including spatial memory, recognition memory, and emotional memory. Acquisition and retrieval of fear memory help one avoid dangers and natural threats. Thus, it is crucial for survival. AD patients with impaired retrieval of fear memory are vulnerable to dangerous conditions. Excessive expression of inflammatory markers is known to impede synaptic transmission and reduce the efficiency of memory retrieval. In wild-type mice, reducing inflammation response can improve fear memory retrieval; however, this effect of this approach is not yet investigated in 3xTg-AD model mice. To date, no satisfactory drug or treatment can attenuate the symptoms of AD despite numerous efforts. In the past few years, the direction of therapeutic drug development for AD has been shifted to natural compounds with anti-inflammatory effect. In the present study, we demonstrate that the compound 4-(phenylsulfanyl) butan-2-one (4-PSB-2) is effective in enhancing fear memory retrieval of wild-type and 3xTg-AD mice by reducing the expression of TNF-α, COX-2, and iNOS. We also found that 4-PSB-2 helps increase dendritic spine density, postsynaptic density protein-95 (PSD-95) expression, and long-term potentiation (LTP) in the hippocampus of 3xTg-AD mice. Our study indicates that 4-PSB-2 may be developed as a promising therapeutic compound for treating fear memory impairment of AD patients.
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Affiliation(s)
| | - Kiruthika Ganesan
- Department of Molecular Biology and Human Genetics, Tzu Chi University, Hualien, Taiwan
| | - Shun-Ping Huang
- Department of Molecular Biology and Human Genetics, Tzu Chi University, Hualien, Taiwan
| | - Supin Chompoopong
- Department of Anatomy, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand
| | - Chatchakorn Eurtivong
- Program in Chemical Sciences, Chulabhorn Graduate Institute, Chulabhorn Royal Academy, Bangkok, Thailand.,Center of Excellence on Environmental Health and Toxicology (EHT), Commission on Higher Education (CHE), Ministry of Education, Bangkok, Thailand
| | - Pavithra Suresh
- Institute of Medical Sciences, Tzu Chi University, Hualien, Taiwan
| | - Zhi-Hong Wen
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung, Taiwan
| | - Ingrid Y Liu
- Institute of Medical Sciences, Tzu Chi University, Hualien, Taiwan
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Suresh P, Phasuk S, Liu IY. Modulation of microglia activation and Alzheimer's disease: CX3 chemokine ligand 1/CX3CR and P2X 7R signaling. Tzu Chi Med J 2021; 33:1-6. [PMID: 33505871 PMCID: PMC7821819 DOI: 10.4103/tcmj.tcmj_144_20] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 08/05/2020] [Accepted: 08/24/2020] [Indexed: 12/20/2022] Open
Abstract
Alzheimer's disease (AD) is a progressive neurodegenerative disease characterized by cognitive deficits. Two hallmarks of AD that cause chronic inflammation and lead to neuronal dysfunction and damage are tau tangles and amyloid plaques. Microglial cells, the primary immune cells of the central nervous system, maintain a homeostatic active/inactive state via a bidirectional, dynamic communication with neurons. Several studies have revealed that dysregulated microglial activation leads to AD pathology. Therefore, we reviewed the relationship between AD and two important signaling complexes, CX3 chemokine ligand 1 (CX3CL1)/CX3CR1 and ATP/P2X7R, that play critical roles in the regulation of microglial activation. CX3CL1/CX3CR1 is one important signaling which controls the microglia function. Altering this pathway can have opposite effects on amyloid and tau pathology in AD. Another important molecule is P2X7R which involves in the activation of microglia. Over activation of P2X7R is evident in AD pathogenesis. In this review, we discuss influence of the two signaling pathways at different stages of AD pathology as well as the drug candidates that can modulate CX3CL1/CX3CR1 and ATP/P2X7R.
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Affiliation(s)
- Pavithra Suresh
- Institute of Medical Sciences, Tzu Chi University, Hualien, Taiwan
| | - Sarayut Phasuk
- Institute of Medical Sciences, Tzu Chi University, Hualien, Taiwan
| | - Ingrid Y Liu
- Institute of Medical Sciences, Tzu Chi University, Hualien, Taiwan
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20
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Suresh P, Radhika K. Nature inspired hybrid algorithms for binding shared key with user trait. IJAPR 2021. [DOI: 10.1504/ijapr.2021.117202] [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: 11/21/2022]
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Ramu P, Vimal SP, Suresh P, Saravanakumar U, Sethuraman V, Anandhavelu S. Electrochemically Deposited Porous Graphene−Polypyrrole−Polyphenol Oxidase for Dopamine Biosensor. ELECTROANAL 2020. [DOI: 10.1002/elan.202060400] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- P. Ramu
- Electronics and Communication Engineering Jaya Institute of Technology Tamilnadu India
| | - S. P. Vimal
- Elctronics and Communication Engineering Sri Ramakrishna Engineering College Coimbatore India
| | - P. Suresh
- Dept of ECE Vel Tech Rangarajan Dr Sagunthala R & D Institute of Science and Technology Chennai Tamilnadu India
| | - U. Saravanakumar
- Dept of ECE Muthayammal Engineering College Rasipuram Tamilnadu India
| | - V. Sethuraman
- Dept. Of Chemistry Vel Tech Multi Tech Engineering College Chennai India
| | - S. Anandhavelu
- Dept. Of Chemistry Vel Tech Multi Tech Engineering College Chennai India
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Sreekalpana M, Suresh P, Kumar GR, Kulkarni S. Concurrent outbreak of Cholera and Shigella in Ronihal village, Bijapur, Karnataka, India, 2016. Int J Infect Dis 2020. [DOI: 10.1016/j.ijid.2020.09.710] [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: 11/24/2022] Open
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23
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Liu IY, Varinthra P, Huang S, Chompoopong S, Suresh P. A coral‐derived compound suppresses hippocampal inflammation and improved memory retrieval in triple transgenic Alzheimer’s mice. Alzheimers Dement 2020. [DOI: 10.1002/alz.045534] [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: 11/08/2022]
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24
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Botsa SM, Jagadeesh Babu M, Suresh P, Kalyani P, Venkateswararao B, Muralikrishna R. Spherical NiWO4-reduced graphene oxide nanocomposite for effective visible light driven photocatalytic activity for the decolourisation of organic pollutants. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2020.09.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Punarselvam E, Devi TK, Britto ASF, Prakash NB, Suresh P. Segmentation Analysis Techniques and Identifying Stress Ratio of Human Lumbar Spine Using ANSYS. j med imaging hlth inform 2020. [DOI: 10.1166/jmihi.2020.3170] [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: 11/23/2022]
Abstract
The Finite Element Method [FEM] used to replicate the products and systems. In this method, the abnormality estimation of the spine has developed and presented in this paper. Spine injury found on vertebrae L1–L5 and its corresponding inter-vertebral disk. Different types of filters
used to eliminate obtained noise, starting the MRI image at different levels. The noiseless image was segmented using differing Edge Detection Algorithm (EDA) such as Canny Edge Detection Algorithm (CEDA), Prewitt, Sobel, and Robert from the applied segmentation algorithm the best EDA identified
and the 3D model for lumbar spine was created. After the segmentation algorithm, the FEA method utilized for examining images of the 3D human lumbar spine on different loads. The experiment conducted with the stress–strain relationship and Modal Analysis on Natural Frequency (NF) calculated.
The entire analysis accomplished by real-time simulation software called ANSYS.
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Abinaya C, Manjula Devi R, Suresh P, Balasubramanian N, Muthaiya N, Kannan ND, Annaraj J, Shanmugaiah V, Pearce JM, Shanmugapriya P, Mayandi J. Antibacterial and anticancer activity of hydrothermally-synthesized zinc oxide nanomaterials using natural extracts of neem, pepper and turmeric as solvent media. Nano Ex 2020. [DOI: 10.1088/2632-959x/ab8a76] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Abstract
A novel and simple wet chemical hydrothermal synthesis method was employed in the preparation of zinc oxide (ZnO) nanoparticles using neem (N), pepper (P) and turmeric (T) extracts as solvent media. The structural and optical properties as well as the antibacterial and anticancer properties of all the samples (ZnO, N/ZnO, P/ZnO, T/ZnO and NPT/ZnO) were characterized and analyzed. Solvent media was found to have an effect on both the size and the morphology of the nanoparticles, which in turn effected their optical and cytotoxic properties. The colony forming unit (CFU) assays were done for E. coli, S. aureus and S. typhi in which T/ZnO (∼2) and P/ZnO (∼3) showed a remarkable effect on S. aureus for 100 μg ml−1 and nearly zero for 150 μg/ml. The zone of inhibition (ZoI) was measured for S. agalactiae, S. dysgalactiae and S. pyogenes.The results showed that S. dysgalactiae is more sensitive to N/ZnO.Finally, the anticancer properties of these compounds towardsprostate cancer cells was investigated. Among the active compounds T ZnO showed the highest activity with low IC50 value (37.751 μg/ml) followed by P ZnO (45.68 μg ml−1).
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Patel A, Nair R, Kaushik MR, Kishore K, Singh HP, Vardhan V, Suresh P, Kumar M, Rathore A, Thareja S, Rana S, Bhuva D, Malviya A. COVID-19, cancer, and congregation: An observational study from a tertiary care hospital in New Delhi. Indian J Med Paediatr Oncol 2020. [DOI: 10.4103/ijmpo.ijmpo_324_20] [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: 11/04/2022] Open
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Padmavathy S, Suresh P. Fetal Ultrasound Image Evaluation of Chromosomal Anomaly Detection and Classification Using Conditional Rooted Neural Network (CRNN). j med imaging hlth inform 2019. [DOI: 10.1166/jmihi.2019.2734] [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: 11/23/2022]
Abstract
In this work, a computerized scheme of Chromosomal anomaly recognition and classification of Chromosomal abnormality such as Trisomy (T) T-13, T-18 and T-21 (Patau, Edwards and Down syndrome) based on Conditionally Rooted neural network (CRNN) with wavelet Filter. CRNN is used to estimate
the chromosomal anomaly features separation from fetal provisions. The clear template of feature estimation from the first-trimester fetus of ultrasound images will be used to train the CRNN Neural Network. The software has successfully identified and classified the region of chromosomal anomaly.
The evaluations show that our CRNN technique can attain good denoising and classification performance in comparison with existing methods. In this experiment, the results indicate that our proposed method can detect and classify the trisomy factors measurement from the US image regions precisely
and robustly against speckle noise. The classification of Fetus US image datasets was done using CRNN classifier, and the accuracy of classification was found to be Highly efficient resolution for Chromosomal anomaly detection.
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Swapna K, Sathibabu Uddandrao VV, Parim B, Ravindarnaik R, Suresh P, Ponnusamy P, Balakrishnan S, Vadivukkarasi S, Harishankar N, Reddy KP, Nivedha PR, Saravanan G. Effects of asiatic acid, an active constituent in Centella asiatica (L.): restorative perspectives of streptozotocin-nicotinamide induced changes on lipid profile and lipid metabolic enzymes in diabetic rats. ACTA ACUST UNITED AC 2019. [DOI: 10.1007/s00580-019-02955-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Kalpana MS, Shankereppa M, Suresh P. Epidemiology of diphtheria and antimicrobial resistance among diphtheria cases, Bijapur district, Karnataka, India, 2012 to 2015. Int J Infect Dis 2019. [DOI: 10.1016/j.ijid.2018.11.130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Abstract
In this paper, the objective is to generate a mesh model of a spine that simulates numerically the biomedical properties of two vertebrae (L4 and L5) of human spine and an inter vertebrae disc using Finite Element Analysis (FEA) technique. Here, different types of non-linear filters and different edge detection techniques are used to segment the edges and the results are compared. The result shows that median filter obtains improved segmented output results in terms of edge length density, average magnitude, final threshold, initial position, and fine-tuned image. The behaviour of spine FEA model is analysed in terms of various parameters like equivalent elastic strain, total deformation, maximum principal elastic strain, minimum principal elastic strain, shear elastic strain, normal elastic strain, and minimum and maximum principal stress, equivalent stress, shear stress and normal stress. These parameters are used to analyse the human spine model under different conditions and different angles using ANSYS simulation tool. Further, MATLAB is carried out to implement various filters and edge detectors on proposed spine model.
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Affiliation(s)
- E Punarselvam
- Department of Information Technology, Muthayammal Engineering College, Rasipuram, India.
| | - P Suresh
- Department of Mechanical Engineering, Muthayammal Engineering College, Rasipuram, India
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Balu J, Sankar S, Suresh P, Sreenivasan K, Elangovan B. Clinico-pathological Presentation of Gastroenteropancreatic Neuroendocrine Tumours and Immunohistochemical Study with Synaptophysin and Chromogranin. J Clin Diagn Res 2019. [DOI: 10.7860/jcdr/2019/40150.12826] [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: 11/24/2022]
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Tamil Elakkiya M, PremKumar S, Sathiyendran M, Suresh P, Shanmugaiah V, Anitha K. Structural, spectral, computational, thermal and antibacterial studies on a co-crystal: 2-Aminopyrazine phthalic acid. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.07.022] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [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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Affiliation(s)
- M.V.N.L. Chaitanya
- Department of Pharmacognosy, School of Pharmacy (Formerly Known as Guru Nanak Institute of Pharmacy), Guru Nanak Institutions Technical Campus (Autonomous), Ibrahimpatnam, R.R. District, Nagarjuna Sagar Road, Hyderabad-501506, Telangana, India
| | - P. Suresh
- Department of Pharmacognosy, School of Pharmacy (Formerly Known as Guru Nanak Institute of Pharmacy), Guru Nanak Institutions Technical Campus (Autonomous), Ibrahimpatnam, R.R. District, Nagarjuna Sagar Road, Hyderabad-501506, Telangana, India
| | - Palanisamy Dhanabal
- Department of Pharmacognosy, JSS College of Pharmacy, Udhagamandalam-643001, Tamilnadu, India (JSS Academy of Higher Education & Research), Mysuru, Karnataka, India
| | - Selvaraj Jubie
- Department of Pharmacognosy, JSS College of Pharmacy, Udhagamandalam-643001, Tamilnadu, India (JSS Academy of Higher Education & Research), Mysuru, Karnataka, India
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Chaitanya M, Suresh P. The Neglected Anticancer Phytoceutical Treasures from the Nilgiris Biosphere: A Short Review. JPRI 2018. [DOI: 10.9734/jpri/2018/40529] [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: 11/09/2022]
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Orr KE, Hamilton SC, Clarke R, Adi MY, Gutteridge C, Suresh P, Freeman SJ. The integration of transabdominal ultrasound simulators into an ultrasound curriculum. Ultrasound 2018; 27:20-30. [PMID: 30774695 DOI: 10.1177/1742271x18762251] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 11/26/2017] [Accepted: 02/07/2018] [Indexed: 11/16/2022]
Abstract
Introduction Simulation is increasingly used throughout medicine. Within ultrasound, simulators are more established for learning transvaginal and interventional procedures. The use of modern high-fidelity transabdominal simulators is increasing, particularly in centres with large trainee numbers. There is no current literature on the value of these simulators in gaining competence in abdominal ultrasound. The aim was to investigate the impact of a new ultrasound curriculum, incorporating transabdominal simulators into the first year of training in a UK radiology academy. Methods The simulator group included 13 trainees. The preceding cohort of 15 trainees was the control group. After 10 months, a clinical assessment was performed to assess whether the new curriculum resulted in improved ultrasound skills. Questionnaires were designed to explore the acceptability of simulation training and whether it had any impact on confidence levels. Results Trainees who had received simulator-enriched training scored higher in an objective clinical ultrasound assessment, which was statistically significant (p = 0.0463). End confidence scores for obtaining diagnostic images and demonstrating pathology were also higher in the simulation group. All trainees stated that transabdominal simulator training was useful in early training. Conclusions This initial study shows that embedded into a curriculum, transabdominal ultrasound simulators are an acceptable training method that can result in improved ultrasound skills and higher confidence levels. Using simulators early in training could allow trainees to master the basics, improve their confidence, enabling them to get more educational value from clinical ultrasound experience while reducing the impact of training on service provision.
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Affiliation(s)
- K E Orr
- Peninsula Radiology Academy, UK.,Derriford Hospital, Plymouth, UK
| | - S C Hamilton
- Peninsula Radiology Academy, UK.,Derriford Hospital, Plymouth, UK
| | | | - M Y Adi
- Peninsula Radiology Academy, UK
| | | | - P Suresh
- Peninsula Radiology Academy, UK.,Derriford Hospital, Plymouth, UK
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Raju AR, Suresh P, Rao RR. Bayesian HCS-based multi-SVNN: A classification approach for brain tumor segmentation and classification using Bayesian fuzzy clustering. Biocybern Biomed Eng 2018. [DOI: 10.1016/j.bbe.2018.05.001] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Rathika N, Suresh P, Sakthieswaran N. Face recognition using Zernike Moments with illumination variations. IJBET 2018. [DOI: 10.1504/ijbet.2018.10008622] [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: 11/21/2022]
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Kumar VP, Reddy VS, Suresh P, Krishna PVM. Identification and Characterization of Non-Tuberculous Mycobacteria Isolated from Extrapulmonary Tuberculosis Suspects by Heat Shock Protein 65 by PCR-RFLP. ACTA ACUST UNITED AC 2018. [DOI: 10.5958/0976-5506.2018.00649.6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Suresh P, Anand SC, Bharadwaj JR, Sachedeva VP, Khattak BP, Sapru BL. COMPARATIVE STUDY OF BONE HEALING FOLLOWING BONE CUTS USING SURGICAL BURS AND MICROSAWS. Med J Armed Forces India 2017; 53:199-201. [PMID: 28769484 DOI: 10.1016/s0377-1237(17)30715-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Abstract
Bone cuts on the tibia of 6 healthy dogs were studied using surgical burs and microsaws arranged in two groups by random selection to assess the speed of cutting, precision and bone healing. Bone cuts in Group A were made with surgical burs of 1.6 mm diameter using micromotor at 40,000 revolutions per minute (RPM) whereas in Group B they were created using Stryker microsaws of 0.75 mm width at the speed of 40,000 RPM. In each group, the dogs were sacrificed at the end of 8, 12 and 16 weeks and a section of the tibia containing the fracture site was removed to assess healing histopathologically. Based on clinical, radiological and histopathological examination, the results of this study indicate that microsaws have their best use in osteotomy procedures in terms of precision and thermal injury to bone whereas ostectomy procedures are more convenient with surgical burs.
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Affiliation(s)
- P Suresh
- OC, Military Dental Centre Yol, Dept of Dental Surgery, Armed Forces Medical College, Pune 411040
| | - S C Anand
- Formerly Prof & Head, Dept of Dental Surgery, Armed Forces Medical College, Pune 411040
| | - J R Bharadwaj
- Senior Adviser (Pathology), Army Hospital, Delhi Cantt 110010
| | - V P Sachedeva
- Classified Specialist (Oral & Maxillofacial Surgery), Dept of Dental Surgery, Armed Forces Medical College, Pune 411040
| | - B P Khattak
- Classified Specialist (Periodontia), Dept of Dental Surgery, Armed Forces Medical College, Pune 411040
| | - B L Sapru
- Associate Prof, Dept of Dental Surgery, Armed Forces Medical College, Pune 411040
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Suresh P, Johnson Rajeswar J, Sukumar K, Harikrishnan TJ, Srinivasan P. Complete nucleotide sequence analysis of the oncogene "Meq" from serotype 1 Marek's disease virus isolates from India. Br Poult Sci 2017; 58:111-115. [PMID: 28043157 DOI: 10.1080/00071668.2016.1257780] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
1. A study was undertaken to characterise the oncogene Meq at the molecular level for three serotype 1 Marek's disease virus (MDV) field isolates from vaccinated poultry flocks which had encountered a Marek's disease outbreak in the southern part of India. The isolates were named Ind/TN/11/01, Ind/KA/12/02 and Ind/TN/12/03. The oncogene Meq was amplified by PCR and sequenced. 2. The isolates were shown to have a homology for the Meq gene of 99.1-99.8% with various isolates from China and 98.5-99.2% with isolates from Europe and the USA. Alignment analysis of the nucleotide sequences showed that nucleotide mutations at 5 different positions in the Meq gene displayed perfect regularity in MDVs circulating in the southern part of India, which could be considered as features of field MDVs recently prevalent in this area. 3. In addition, the mutation in the Meq gene at positions 251, 260 and 437 was unique and coincides with very virulent strains from China GX0101, GXY2 and a Hungarian strain ATE. The mutation at positions 283 and 300 was unique and coincides with the very virulent strain ATE of Hungary. There were also single nucleotide mutations at positions 155 (A-T), 369 (A-C), 462 (C-A) and 548 (C-T) observed in the isolate Ind/TN/12/03. 4. Phylogenetic analysis of Meq sequences revealed that field MDVs in this area evolved independently but have similarities with very virulent strains from China, and that Meq has more similarities with the very virulent Hungarian strain.
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Affiliation(s)
- P Suresh
- a Department of Veterinary Microbiology , Veterinary College and Research Institute , Namakkal , India
| | - J Johnson Rajeswar
- b Department of Veterinary Microbiology , Veterinary College and Research Institute , Tirunelveli , India
| | - K Sukumar
- a Department of Veterinary Microbiology , Veterinary College and Research Institute , Namakkal , India
| | - T J Harikrishnan
- c Director of Research , Tamilnadu Veterinary and Animal Sciences University (TANUVAS) , Chennai , India
| | - P Srinivasan
- d Poultry Disease Diagnosis and Surveillance Laboratory , Veterinary College and Research Institute , Namakkal , India
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Suresh P, Sathya N, Karuppasamy K. Contourlet transform and morphological reconstruction based retinal blood vessel segmentation. IJBET 2017. [DOI: 10.1504/ijbet.2017.10008610] [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: 11/21/2022]
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Suresh P, Krishna BV, Ganesh SH, Kannan M, Kumar MSA, Jayaram N. A Comprehensive Methodology to Design a Helmholtz Resonator for Two-Wheeler Induction Noise Reduction. ACTA ACUST UNITED AC 2016. [DOI: 10.3813/aaa.918956] [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: 11/06/2022]
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Chandra D, Suresh P, Sinha R, Azam S, Batra U, Talwar V, Kumar K, Mehta A. Eight Year Survival Analysis of Patients with Triple Negative Breast Cancer in India. Asian Pac J Cancer Prev 2016; 17:2995-2999. [PMID: 27356724] [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: 06/06/2023] Open
Abstract
BACKGROUND Triple-negative breast cancer (TNBC) often presents as an interval cancer with short survival upon metastasis and thus represents an important clinical challenge. The present study investigated the clinicopathologic characteristics and long term survival outcome of early and locally advanced TNBC. MATERIALS AND METHODS Medical records were reviewed retrospectively for 148 consecutive confirmed cases of TNBC treated in a single unit at our centre. Demographic profile, tumor type, histopathology details, treatment and follow-up information was recorded and immunohistochemistry was performed. RESULTS Age group >50 years was associated with tumors of clinical stage 3 (53.8%), pathological stage 3 (46.2%), pathological grade 3 (45.7%), presence of extracapsular extension (ECE, 48.5%) and lymphovascular invasion (LVI, 64.9%). Locally advanced breast cancers (LABCs) were characterized by pathological stage 3 (96.2%), presence of ECE (100%) and absence of LVI (46.7%) as compared to early breast cancers (EBCs) which had higher incidence of lower stage tumors (100%), absence of ECE (82%) and presence of LVI (91.9%; p-value <0.001. Better relapse free survival was observed in patients with no axillary involvement (69%; p-value <0.001) and absence of ECE (64%; p-value <0.001). Improved overall survival was seen in patients with EBC (90%; p-value 0.008), clear axilla (86%; p-value <0.001), absence of ECE (87%; p-value <0.001) and negative lymph nodes (90%; p-value 0.006). CONCLUSIONS TNBCs are aggressive tumors which show poor long term survival. Patients with TNBC benefit from chemotherapy, thus better and less toxic treatment options are needed. Identification of newer targets and development of targeted therapies are the need of the hour.
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MESH Headings
- Adult
- Aged
- Antineoplastic Combined Chemotherapy Protocols/therapeutic use
- Carcinoma, Ductal, Breast/mortality
- Carcinoma, Ductal, Breast/secondary
- Carcinoma, Ductal, Breast/therapy
- Combined Modality Therapy/mortality
- Female
- Follow-Up Studies
- Humans
- Lymph Nodes/pathology
- Lymphatic Metastasis
- Mastectomy, Segmental/mortality
- Middle Aged
- Neoplasm Grading
- Neoplasm Invasiveness
- Neoplasm Recurrence, Local/mortality
- Neoplasm Recurrence, Local/pathology
- Neoplasm Recurrence, Local/therapy
- Neoplasm Staging
- Prognosis
- Retrospective Studies
- Survival Rate
- Triple Negative Breast Neoplasms/mortality
- Triple Negative Breast Neoplasms/pathology
- Triple Negative Breast Neoplasms/therapy
- Young Adult
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Affiliation(s)
- Dinesh Chandra
- Department of Medical Oncology, Rajiv Gandhi Cancer Institute and Research Centre, Delhi, India E-mail :
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Suresh P. Book Review: Urban Insect Pests: Sustainable Management Strategies. Proceedings of the Indian National Science Academy 2015. [DOI: 10.16943/ptinsa/2015/v81i5/48340] [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: 11/13/2022]
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Abstract
Crown or root fractures are the most commonly encountered emergencies in the dental clinic. Root fractures occur in fewer than eight percent of the traumatic injuries to permanent teeth. They are broadly classified as horizontal and vertical root fractures. Correct diagnosis of root fractures is essential to ensure a proper treatment plan and hence, the best possible prognosis. Indication of the type of treatment to be used depends primarily on the level of the fracture line. Therefore, a clinician must also have a thorough knowledge of the various treatment approaches to devise a treatment plan accordingly. Various treatment strategies have been proposed, each with their own advantages and disadvantages. Hence, this literature review presents an overview of the various types of root fractures and their management.Kathmandu University Medical Journal Vol.12(3) 2014; 222-230
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Affiliation(s)
- P Suresh
- Department of Hematology and Medical Oncology, Malignant Diseases Treatment Centre, Command Hospital (SC), Maharashtra, India
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Suresh P, Janarthanan S, Sugaraj Samuel R, Jestin Lenus A, Shanthi C. Synthesis, growth and spectral, optical and thermal characterization studies on L-Tryptophan p-nitrophenol (LTPN) single crystals for NLO applications. Spectrochim Acta A Mol Biomol Spectrosc 2015; 135:732-735. [PMID: 25145916 DOI: 10.1016/j.saa.2014.07.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [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: 04/03/2014] [Revised: 06/26/2014] [Accepted: 07/02/2014] [Indexed: 06/03/2023]
Abstract
The novel nonlinear optical single crystal of L-Tryptophan p-nitrophenol (LTPN) has been successfully synthesized by taking the appropriate amount of L-Tryptophan and p-nitrophenol. The single crystals have been grown by slow evaporation solution growth technique. The single crystal XRD studies confirmed that the grown crystal belongs to the monoclinic system. The various functional groups presented in the crystal were confirmed by FT-IR and (1)H NMR spectroscopic studies. The absorptions of the grown crystals were analyzed using UV-Vis-NIR spectral studies. The thermal analysis was performed to study the thermal stability of the grown crystals. The second harmonic generation behavior of L-Tryptophan p-nitrophenol crystal was tested by Kurtz-Perry powder technique.
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Affiliation(s)
- P Suresh
- Department of Physics, Vivekanandha College of Engineering for Women, Tiruchengode, Tamil Nadu, India
| | - S Janarthanan
- Department of Physics, Jaya Suriya Engineering College, Koduveli, Chennai, India
| | - R Sugaraj Samuel
- Department of Physics, The New College, Peters Road, Royapettah, Chennai, India.
| | - A Jestin Lenus
- Department of Physics, Anna University, Guindy, Chennai, India
| | - C Shanthi
- Department of Physics, Sona College of Technology, Salem, Tamil Nadu, India
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