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Nandhini S, Thiruppathi G, Ranjani M, Pushmann H, Ravi M, Sundararaj P, Prabhakaran R. Effect of ruthenium(II) complexes on MDA-MB-231 cells and lifespan/tumor growth in gld-1mutant, Daf-16 TF and stress productive genes: A perspective study. J Inorg Biochem 2024; 257:112580. [PMID: 38701694 DOI: 10.1016/j.jinorgbio.2024.112580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Revised: 04/17/2024] [Accepted: 04/26/2024] [Indexed: 05/05/2024]
Abstract
Pincer type coumarin based N-substituted semicarbazone ligands HL1-4 and their corresponding ruthenium(II) complexes (1-4) were synthesized, analyzed and confirmed by various spectro analytical techniques. The molecular structure of the ligand HL3 and complex 3 was confirmed by single crystal X-ray diffraction analysis. The stoichiometry of complexes 1, 2 and 4 was confirmed by high resolution mass spectroscopy (HRMS). The binding affinity of the compounds with CT-DNA (Calf Thymus DNA) and BSA (Bovine Serum Albumin) was established by absorption and emission titration methods. The results of In vitro cytotoxicity showed the significant cytotoxic potential of the complexes against MDA-MB-231 cells (TNBC- Triple-negative breast cancer). Among the complexes, 1 and 4 have shown appreciable results. Further, antimigratory activity against the MDA-MB-231 cells was studied for the complexes 1 and 4. The percentage cell cycle arrest, apoptosis and necrosis were explored by flow cytometry. The in vivo anti-tumor activity of the complexes 1 and 4 using C. elegans as model organism was established by using the tumoral C. elegans strain JK1466 (gld-1(q485)), which bears a mutation in the gld-1 tumor suppressor gene. We have determined the effect of our complexes on tumor gonad reduction and found to be non toxic to the JK1466 worms and they have prolonged their mean lifespan with potential antioxidant ability by overcoming stress responses. Overall, our study reported herein demonstrated that the complexes 1 and 4 could be established as potential metallo-drugs substantiating further exploration.
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Affiliation(s)
- S Nandhini
- Department of Chemistry, Bharathiar University, Coimbatore 641 046, India
| | - G Thiruppathi
- Department of Zoology, Bharathiar University, Coimbatore 641 046, India
| | - M Ranjani
- Department of Chemistry, Bharathiar University, Coimbatore 641 046, India
| | - H Pushmann
- Department of Chemistry, Durham University, Durham DH1 3LE, UK
| | - M Ravi
- Department of Biochemistry, University of Madras, Guindy Campus, Chennai 600025, India
| | - P Sundararaj
- Department of Zoology, Bharathiar University, Coimbatore 641 046, India
| | - R Prabhakaran
- Department of Chemistry, Bharathiar University, Coimbatore 641 046, India.
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Thirumalaikumar E, Vimal S, Sathishkumar R, Ravi M, Karthick V, Ramya S, Thomas J, Kumar V, Kamaraj C, Citarasu T. DNA vaccine incorporated poly (lactic-co-glycolic) acid (PLGA) microspheres offer enhanced protection against Aeromonas hydrophila infection. Int J Biol Macromol 2023; 253:127182. [PMID: 37793515 DOI: 10.1016/j.ijbiomac.2023.127182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 09/22/2023] [Accepted: 09/25/2023] [Indexed: 10/06/2023]
Abstract
Encapsulation of DNA vaccines onto carriers enhances the immunogenicity of an antigen. Specifically, biodegradable polymers offer sustained release of vaccines which is crucial for any targeted delivery approach. Poly (lactic-co-glycolic) acid (PLGA) microspheres were used to load a DNA vaccine having a targeted gene of outer membrane protein (OMP) of Aeromonas hydrophila to clone and construct a DNA vaccine using a eukaryotic expression vector system (pVAX1-OMP DNA) and delivery in Carassius auratus against A. hydrophila infection. PLGA microspheres were prepared by emulsion technique oil-in-water and characterized by a High-Resolution Scanning Electron Microscope (HR-SEM). The results of PLGA-pVAX1-OMP DNA microspheres shows that average of 100-150 μm particle size and a loading efficiency (LE) of 68.8 %. Results indicate that C. auratus fed with PLGA-pVAX1-OMP DNA microspheres revealed a significant improvement in innate immune response, which includes, myeloperoxidase activity, respiratory burst and total immunoglobulin level compared with control group fish. The immune-related gene, IL1β, IL10, TGF, c-type, and g-type lysozyme also showed significantly higher expression after immunization. Furthermore, dietary supplementation of the PLGA-pVAX1-OMP DNA (G III) group exhibited a significantly higher survival rate (78 %) than the control group of fish. These results help us to understand the of mechanism of DNA vaccine administrated feed through PLGA nanoparticles resistance to infection by regulating systemic and innate immunity in Carassius auratus.
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Affiliation(s)
- Eswaramoorthy Thirumalaikumar
- Aquatic Animal Health Laboratory, Centre for Marine Science and Technology (CMST), Manonmaniam Sundaranar University, Rajakkamangalam 629502, Tamilnadu, India
| | - S Vimal
- Department of Biochemistry, Saveetha Medical College & Hospital, Saveetha Institute of Medical and Technical Sciences (SIMATS), Thandalam, Chennai 602105, Tamilnadu, India.
| | - Ramamoorthy Sathishkumar
- Aquatic Animal Health Laboratory, Centre for Marine Science and Technology (CMST), Manonmaniam Sundaranar University, Rajakkamangalam 629502, Tamilnadu, India
| | - M Ravi
- Centre for Ocean Research (DST-FIST Sponsored) (MoES-ESTC cell), Sathyabama Institute of Science and Technology, Jeppiaar Nagar, Rajiv Gandhi Salai, Chennai 600119, Tamilnadu, India
| | - V Karthick
- Centre for Ocean Research (DST-FIST Sponsored) (MoES-ESTC cell), Sathyabama Institute of Science and Technology, Jeppiaar Nagar, Rajiv Gandhi Salai, Chennai 600119, Tamilnadu, India
| | - S Ramya
- Centre for Ocean Research (DST-FIST Sponsored) (MoES-ESTC cell), Sathyabama Institute of Science and Technology, Jeppiaar Nagar, Rajiv Gandhi Salai, Chennai 600119, Tamilnadu, India
| | - John Thomas
- Centre for Nanobiotechnology, VIT University, Vellore, Tamilnadu, India
| | - Vinay Kumar
- Department of Community Medicine, Saveetha Medical College & Hospital, Saveetha Institute of Medical and Technical Sciences (SIMATS), Thandalam, Chennai 602105, Tamil Nadu, India
| | - Chinnaperumal Kamaraj
- Interdisciplinary Institute of Indian System of Medicine (IIISM), Directorate of Research, SRM Institute of Science and Technology, Kattankulathur, Kancheepuram, India
| | - Thavasimuthu Citarasu
- Aquatic Animal Health Laboratory, Centre for Marine Science and Technology (CMST), Manonmaniam Sundaranar University, Rajakkamangalam 629502, Tamilnadu, India.
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Ali AA, Stemboroski L, Ravi M. Acute HIV presenting as rhabdomyolysis. BMJ Case Rep 2023; 16:e255621. [PMID: 37793847 PMCID: PMC10551877 DOI: 10.1136/bcr-2023-255621] [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: 10/06/2023] Open
Abstract
A man, in his early 30s, with no significant medical history presented with a 2-week history of fatigue, chest and abdominal pain, associated with anorexia and vomiting. Initial laboratory testing was suggestive of rhabdomyolysis with acute renal failure and transaminitis. The aetiology of his rhabdomyolysis initially remained unexplained as there were no clear risk factors or inciting events. An extensive workup revealed acute HIV as the precipitant of rhabdomyolysis.
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Affiliation(s)
- Aleem Azal Ali
- Gastroenterology, University of Florida College of Medicine, Jacksonville, Florida, USA
| | - Lauren Stemboroski
- Gastroenterology, University of Florida College of Medicine, Jacksonville, Florida, USA
| | - Malleswari Ravi
- Infectious Disease, University of Florida College of Medicine, Jacksonville, Florida, USA
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Brihmat N, Bayram MB, Ravi M, Bheemreddy A, Anjaria M, Momeni K, Saleh S, Forrest GF. Differential Corticospinal Excitability and Cortical Functional Connectivity Modulation by Spinal Cord Transcutaneous Stimulation-based Motor Training versus Motor Training alone in Able-bodied and SCI participants: A Multiple Case Study. Annu Int Conf IEEE Eng Med Biol Soc 2023; 2023:1-4. [PMID: 38083293 DOI: 10.1109/embc40787.2023.10340957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2023]
Abstract
Spinal cord transcutaneous stimulation (scTS) has shown its potential for boosting motor, sensory, and autonomic function recovery after a spinal cord injury. Despite the demonstrated benefits, little is known about the exact neuromodulatory mechanisms triggered by scTS and the cortex involvement in the beneficial effects observed. Here, we examine the effects of scTS-based motor training and motor training alone on sensorimotor cortical functional connectivity and corticospinal excitability in able-bodied and SCI participants.Clinical Relevance- The results show preliminary evidence of differential cortical involvement and modulation by scTS-based motor training in uninjured and spinal-cord injured individuals. A better understanding of scTS mechanisms of action could help optimize the intervention design and potentiate its benefits.
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Anjaria M, Momeni K, Ravi M, Bheemreddy A, Zhang F, Forrest G. Improved Gait symmetry with spinal cord transcutaneous stimulation in individuals with spinal cord injury. Annu Int Conf IEEE Eng Med Biol Soc 2023; 2023:1-4. [PMID: 38083247 DOI: 10.1109/embc40787.2023.10340236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2023]
Abstract
A previous study by our group showed preliminary results showcasing the usage of optimal and individualized spinal cord transcutaneous stimulation (scTS) parameters during overground gait training to facilitate more repeatable gait kinematics profiles for one participant with an incomplete spinal cord injury (SCI). The goal of this study was to use the combined targeted scTS and training to improve spatial and temporal parameters to achieve a symmetrical gait profile after completing activity-based training (ABT) (stepping and stand training) and exoskeleton training with and without scTS. Our data indicates that stimulation with optimal and individualized parameters can lead to more effective, stable and symmetric gait patterns in participants with varied levels of SCI.Clinical Relevance- This analysis will enable us to better understand the combined effect of exercise based training and tonic scTS on improving the quality and symmetry of gait pattern in participants with incomplete SCI.
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Rathore A, Patel F, Gupta N, Asiimwe DD, Rollini F, Ravi M. First case of Arcobacter species isolated in pericardial fluid in an HIV and COVID-19 patient with worsening cardiac tamponade. IDCases 2023; 32:e01771. [PMID: 37151209 PMCID: PMC10160497 DOI: 10.1016/j.idcr.2023.e01771] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 04/17/2023] [Indexed: 05/09/2023] Open
Abstract
Arcobacter spp. is an emerging pathogen that is increasingly recognized as a cause of human infections. Gastrointestinal manifestations are most described in the case report literature. We present a case of the first documented case of Arcobacter spp. isolated in pericardial fluid in an immunocompromised patient with worsening cardiac tamponade that was successfully managed with an urgent pericardiocentesis and ensuing steroids, antibiotics, and a pericardial drain. The patient had a past medical history of HIV, latent syphilis, PCP pneumonia, ESRD, and hypertension, and presented with worsening dyspnea, subjective fever, myalgias, cough, pleuritic chest pain, and pericardial rub. Diagnostic workup revealed a positive COVID-19 PCR test, elevated high-sensitive cardiac troponins, elevated CRP, elevated D-dimer, and elevated creatinine. An ECG revealed diffuse ST-segment elevation, and imaging showed cardiomegaly with pulmonary vascular congestion and diffuse interstitial edema. Urgent TTE showed a large circumferential pericardial effusion with tamponade physiology present. Culture on aerobic blood agar grew Arcobacter spp. of unknown specific species, and blood cultures were also positive for Arcobacter spp. Treatment involved intravenous meropenem for five days, followed by oral ciprofloxacin, low-dose colchicine, and a tapered dose of ibuprofen. Repeat laboratory data and TTE showed complete resolution of the pericardial effusion and improved left ventricular function. This case highlights the potential for Arcobacter spp. to cause severe infections and the importance of considering it as a possible pathogen in patients with atypical presentations.
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Affiliation(s)
- Azeem Rathore
- Department of Medicine, University of Florida Health Science Center, Jacksonville, FL 32209, USA
- Correspondence to: 653–1 West 8th Street, L20, Jacksonville, FL 32209, USA.
| | - Falguni Patel
- Department of Medicine, University of Florida Health Science Center, Jacksonville, FL 32209, USA
| | - Nidhi Gupta
- Department of Medicine, University of Florida Health Science Center, Jacksonville, FL 32209, USA
| | - Denis D. Asiimwe
- Division of Infectious Diseases, University of Florida Health Science Center, Jacksonville, FL 32209, USA
| | - Fabiana Rollini
- Division of Cardiology, University of Florida Health Science Center, Jacksonville, FL 32209, USA
| | - Malleswari Ravi
- Division of Infectious Diseases, University of Florida Health Science Center, Jacksonville, FL 32209, USA
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George M, Kiran N, Ravi M. Patient Satisfaction with Anaesthesia: Perioperative Questionnaire versus Face-to-face Survey. J Clin Diagn Res 2023. [DOI: 10.7860/jcdr/2023/60521.17251] [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: 12/24/2022]
Abstract
Introduction: Factors favouring patient satisfaction in anaesthesia are availability of services based on institutional facilities, mutual between with anaesthesiologist and patients, skill of health care experts and patient requirements. When one wishes to improve response rates and raise the calibre of the data captured, face-to-face surveys are among the greatest methods for gathering data. It can be challenging to quantify subject satisfaction in anaesthesia since subjective indications vary by person, culture and background. Patients rating of their own satisfaction can estimate the care given during procedure which cannot be easily assessed in any other way. Aim: To assess patient satisfaction regarding the care provided during anaesthesia and to find out whether dissatisfactions are better elicited through face-to-face interviews or questionnaire. Materials and Methods: This cross-sectional study was conducted on patients undergoing surgery under general or regional anaesthesia at Sri Devaraj Urs Medical College, Sri Devaraj Urs Academy of Higher Education and Research, Tamaka, Kolar, Karnataka, India, from November 2021 to February 2022. Estimated sample size was 74. As per American Society of Anaesthesiologist (ASA) grades 1 and 2, adults in the age group of 18–65 years were divided into two groups using chits. In group A, face-to-face interview was done on postoperative day 2 by anaesthesiology resident. In group B, questionnaire was given on postoperative day 2 by anaesthesiology resident. The questions on anaesthesia-related dissatisfaction were posed in a semi dichotomous scale (no/yes-mild, moderate, severe); the questions on satisfaction with anaesthesia care were given on a 4-item scale (extremely satisfied/satisfied/ neutral/dissatisfied). The data was analysed by using Statistical Package for the Social Sciences (SPSS) software version 22.0, and R environment version 3.2.2 and Microsoft word and Excel have been used to generate graphs and tables. Results: Patient population included in study was 74, among which 63 (85.1%) patients were extremely satisfied with the care given by Anaesthesia Department in general, seven (9.5%) were satisfied, four (5.4%) were neutral, and no one were dissatisfied. Among questionnaire group 36 (97.3%) patients were extremely satisfied with anaesthesia care in general while 27 (73%) of face-to-face group were extremely satisfied with anaesthesia care in general. Among anaesthesia related dissatisfactions 65 (87.8%) of patients did not complain of postoperative nausea and vomiting. In this study 52 (70.3%) patients were extremely satisfied with pain relief after surgery. Conclusion: Face-to-face interview identifies more patients who report lower degree of satisfaction with anaesthesia, it can be concluded that interviewing is better suited for detecting quality problems with anaesthesia care than written questionnaire.
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Chase Cole J, Jankowski C, Verdecia J, Isache C, Ravi M, McCarter Y, Casapao AM. 970. The Time for Action is Now: The Impact of Timing with Infectious Diseases Consultation for Staphylococcus aureus Bacteremia. Open Forum Infect Dis 2022. [PMCID: PMC9751810 DOI: 10.1093/ofid/ofac492.812] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Background Staphylococcus aureus bacteremia (SAB) is one of the leading causes of bloodstream infections complicated by metastatic diseases leading to extended lengths of stay (LOS). Infectious disease (ID) consultation is associated with greater adherence to standards of care and improved clinical outcomes. There are sparse data evaluating the impact of the timing for ID consult on SAB management. The purpose of this study was to compare the difference in clinical outcomes in patients with SAB who received an early (< 5 days) versus late (≥ 5 days) ID consult. Methods This was an IRB-approved, retrospective, cohort study in hospitalized adult patients with SAB who received an ID consultation between 2015 and 2020. The timing of the ID consult was defined from the order of the index positive blood culture to the placement of the consult. The composite primary endpoint included: identifying the source of SAB, follow-up cultures, obtaining an echo, use of parenteral therapy, and treatment duration. Secondary endpoints included mortality, recurrence, LOS, duration of bacteremia, and readmission rates (30, 60, and 90-day). A machine learning algorithm (MLA) was utilized to determine an alternative to the 5 days threshold for early vs late. Results A total of 321 patients with SAB were included with baseline characteristics (Table 1). The early group was more likely to meet the primary endpoint (62.5% vs. 28.3%, p < 0.001). The median duration of bacteremia and length of stay was shorter in the early group (p < 0.001) (Table 2). MLA determined an alternative threshold of ≤ 3.5 days for early ID consult. Multivariable analyses reported early ID consult in ≥ 5 days (adjusted OR: 6.42, 95% CI [3.20, 12.89]; p < 0.001) and ≤ 3.5 days (adjusted OR: 3.47, 95% CI [2.08, 5.81]; p < 0.001) as independent predictors for achieving the five quality care indicators (Table 3).
![]() Comparing the predefined definition of early infectious diseases consultation as < 5 days and late infectious diseases consultation as >= 5 days in univariate analyses to baseline and clinical characteristics. A comparison of an alternative threshold of 3.5 days was also performed in univariate analyses. PWID: persons who inject drugs; ESRD: end-stage renal disease; SD: standard deviation; IQR: interquartile range; MRSA: methicillin-resistant Staphylococcus aureus; ICU: intensive car unit.
![]() Comparing the predefined definition of early infectious diseases consultation as < 5 days and late infectious diseases consultation as >= 5 days in univariate analyses to primary and secondary endpoints. A comparison of an alternative threshold of 3.5 days was also performed in univariate analyses.
![]() Bivariate analyses were performed with covariates of interest that may be associated with five quality indicators of Staphylococcus aureus bacteremia management (composite primary endpoint). Multivariable analysis was performed to control for covariates statistically significant in the bivariate analyses. Early infectious diseases consultation < 5 days was an independent predictor for meeting the five quality indicators of SAB management. Another multivariable analysis confirmed early ID consultation <= 3.5 days as an independent predictor for meeting the five quality indicators of SAB management. Conclusion Patients with SAB who received an early ID consultation were more likely to achieve the quality care indicators and have a shorter duration of bacteremia and LOS. These data suggest that patients with SAB should have an ID consultation < 5 days from index culture acquisition. Future studies should evaluate if an earlier time frame of 3.5 days for ID consultation improves clinical outcomes. Disclosures All Authors: No reported disclosures.
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Affiliation(s)
| | | | - Jorge Verdecia
- University of Florida COM-Jacksonville, Jacksonville, Florida
| | | | - Malleswari Ravi
- University of Florida COM-Jacksonville, Jacksonville, Florida
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Asiimwe DD, Ravi M, Isache C. Fusariosis: An Invasive Fungal Disease in a Neutropenic Patient With Acute Myeloid Leukemia. Cureus 2022; 14:e29303. [PMID: 36277532 PMCID: PMC9579060 DOI: 10.7759/cureus.29303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Accepted: 09/18/2022] [Indexed: 11/05/2022] Open
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Vineeth Kumar CM, Karthick V, Kumar VG, Inbakandan D, Rene ER, Suganya KSU, Embrandiri A, Dhas TS, Ravi M, Sowmiya P. The impact of engineered nanomaterials on the environment: Release mechanism, toxicity, transformation, and remediation. Environ Res 2022; 212:113202. [PMID: 35398077 DOI: 10.1016/j.envres.2022.113202] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 02/24/2022] [Accepted: 03/24/2022] [Indexed: 06/14/2023]
Abstract
The presence and longevity of nanomaterials in the ecosystem, as well as their properties, account for environmental toxicity. When nanomaterials in terrestrial and aquatic systems are exposed to the prevailing environmental conditions, they undergo various transformations such as dissociation, dissolution, and aggregation, which affects the food chain. The toxicity of nanomaterials is influenced by a variety of factors, including environmental factors and its physico-chemical characteristics. Bioaccumulation, biotransformation, and biomagnification are the mechanisms that have been identified for determining the fate of nanomaterials. The route taken by nanomaterials to reach living cells provides us with information about their toxicity profile. This review discusses the recent advances in the transport, transformation, and fate of nanomaterials after they are released into the environment. The review also discusses how nanoparticles affect lower trophic organisms through direct contact, the impact of nanoparticles on higher trophic organisms, and the possible options for remediation.
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Affiliation(s)
- C M Vineeth Kumar
- Centre for Ocean Research, Col. Dr. Jeppiaar Research Park, Sathyabama Institute of Science and Technology, Jeppiaar Nagar, Rajiv Gandhi Salai, Chennai, 600119, Tamilnadu, India
| | - V Karthick
- Centre for Ocean Research, Col. Dr. Jeppiaar Research Park, Sathyabama Institute of Science and Technology, Jeppiaar Nagar, Rajiv Gandhi Salai, Chennai, 600119, Tamilnadu, India.
| | - V Ganesh Kumar
- Centre for Ocean Research, Col. Dr. Jeppiaar Research Park, Sathyabama Institute of Science and Technology, Jeppiaar Nagar, Rajiv Gandhi Salai, Chennai, 600119, Tamilnadu, India
| | - D Inbakandan
- Centre for Ocean Research, Col. Dr. Jeppiaar Research Park, Sathyabama Institute of Science and Technology, Jeppiaar Nagar, Rajiv Gandhi Salai, Chennai, 600119, Tamilnadu, India
| | - Eldon R Rene
- Department of Water Supply, Sanitation and Environmental Engineering, IHE Delft Institute for Water Education, Westvest 7, P. O. Box 3015, 2611AX Delft, the Netherlands
| | - K S Uma Suganya
- Department of Biotechnology and Biochemical Engineering, Sree Chitra Thirunal College of Engineering, Pappanamcode, Thiruvananthapuram, 695018, Kerala, India
| | - Asha Embrandiri
- Department of Environmental Health, College of Medicine and Health Sciences, Wollo University, P. O. Box 1145, Dessie, Amhara, Ethiopia
| | - T Stalin Dhas
- Centre for Ocean Research, Col. Dr. Jeppiaar Research Park, Sathyabama Institute of Science and Technology, Jeppiaar Nagar, Rajiv Gandhi Salai, Chennai, 600119, Tamilnadu, India
| | - M Ravi
- Centre for Ocean Research, Col. Dr. Jeppiaar Research Park, Sathyabama Institute of Science and Technology, Jeppiaar Nagar, Rajiv Gandhi Salai, Chennai, 600119, Tamilnadu, India
| | - P Sowmiya
- Centre for Ocean Research, Col. Dr. Jeppiaar Research Park, Sathyabama Institute of Science and Technology, Jeppiaar Nagar, Rajiv Gandhi Salai, Chennai, 600119, Tamilnadu, India
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Verdecia JL, Jankowski CA, Isache CL, Neilsen CD, McCarter YS, Sands ML, Ravi M. A Case Report of melioidotic prostatic abscess in a traveler. Open Forum Infect Dis 2022; 9:ofac284. [PMID: 35891686 PMCID: PMC9308449 DOI: 10.1093/ofid/ofac284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Indexed: 11/13/2022] Open
Abstract
Abstract
A 48-year-old-man who returned from Panama 5 weeks prior presented with fever, dysuria, hematuria, flank pain, and suprapubic pain and was found to have a prostatic abscess. Abscess fluid obtained during transurethral drainage grew Burkholderia pseudomallei. Blood cultures remained negative, and imaging did not show any other visceral abscess. This presentation of primary prostatic melioidosis is extremely rare in this region. Keywords: Melioidosis; Burkholderia pseudomallei; Prostatic abscess; traveler-related disease, Meropenem; Trimethoprim-sulfamethoxazole
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Affiliation(s)
- Jorge L Verdecia
- Department of Medicine, Division of Infectious Diseases, University of Florida , Jacksonville, FL , USA
| | | | - Carmen L Isache
- Department of Medicine, Division of Infectious Diseases, University of Florida , Jacksonville, FL , USA
| | - Chad D Neilsen
- Department of Infection Prevention and Control, University of Florida , Jacksonville, FL , USA
| | - Yvette S McCarter
- Department of Pathology, University of Florida , Jacksonville, FL , USA
| | - Michael L Sands
- Department of Medicine, Division of Infectious Diseases, University of Florida , Jacksonville, FL , USA
| | - Malleswari Ravi
- Department of Medicine, Division of Infectious Diseases, University of Florida , Jacksonville, FL , USA
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Dharani S, Kalaiarasi G, Ravi M, Sathan Raj N, Lynch VM, Prabhakaran R. Diosgenin derivatives developed from Pd(II) catalysed dehydrogenative coupling exert an effect on breast cancer cells by abrogating their growth and facilitating apoptosis via regulating the AKT1 pathway. Dalton Trans 2022; 51:6766-6777. [PMID: 35420095 DOI: 10.1039/d2dt00514j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Palladium metallates containing 4-oxo-4H-chromene-3-carbaldehyde derived ONS donor Schiff bases were synthesized and their efficacy was tested in the direct amination of diosgenin - a phyto steroid. Based on the pharmacological importance of diosgenin, the obtained derivatives were exposed to study their effect on breast cancer cells where they significantly reduced the growth of cancer cells and left non-malignant breast epithelial cells unaffected. Among the derivatives, D3, D4 and D6 showed a better anti-proliferative effect and further analysis revealed that the D3, D4 and D6 derivatives markedly promoted cell cycle arrest and apoptosis by attenuation of the AKT1 signalling pathway.
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Affiliation(s)
- S Dharani
- Department of Chemistry, Bharathiar University, Coimbatore 641046, India.
| | - G Kalaiarasi
- Department of Chemistry, Bharathiar University, Coimbatore 641046, India.
| | - M Ravi
- Department of Biochemistry, University of Madras, Guindy Campus, Chennai 600025, India.
| | - N Sathan Raj
- Department of Biochemistry, University of Madras, Guindy Campus, Chennai 600025, India.
| | - Vincent M Lynch
- Department of Chemistry, University of Texas, Austin, TX 78712-1224, USA
| | - R Prabhakaran
- Department of Chemistry, Bharathiar University, Coimbatore 641046, India.
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Verdecia J, Martinez A, Ravi M. Strongyloidiasis Infection As the Cause of Pancreatitis. Cureus 2022; 14:e24097. [PMID: 35573535 PMCID: PMC9106552 DOI: 10.7759/cureus.24097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/12/2022] [Indexed: 11/05/2022] Open
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Feghaly J, Rivas Rios J, Ravi M, Sattiraju S, Missov E. Aerococcus urinae Infective Endocarditis. Cureus 2022; 14:e23947. [PMID: 35547451 PMCID: PMC9085717 DOI: 10.7759/cureus.23947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Accepted: 04/07/2022] [Indexed: 11/18/2022] Open
Abstract
Aerococcus urinae is a gram-positive organism frequently found in the urinary tract. It is often mistaken for Streptococcus and Enterococcus based on its appearance. It commonly causes urinary tract infections but has rarely been associated with fatal infective endocarditis and sepsis. We present a case of Aerococcus urinae infective endocarditis and discuss echocardiographic imaging findings and management approach.
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Affiliation(s)
- Julien Feghaly
- Cardiology, University of Florida College of Medicine - Jacksonville, Jacksonville, USA
| | - Jose Rivas Rios
- Cardiology, University of Florida College of Medicine - Jacksonville, Jacksonville, USA
| | - Malleswari Ravi
- Infectious Disease, University of Florida College of Medicine - Jacksonville, Jacksonville, USA
| | - Srinivasan Sattiraju
- Cardiology, University of Florida College of Medicine - Jacksonville, Jacksonville, USA
| | - Emil Missov
- Cardiology, University of Florida College of Medicine - Jacksonville, Jacksonville, USA
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15
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Sowmiya P, Dhas TS, Sai DN, Jyotsna, Anandakumar N, Kumar VG, Ravi M, Nalini S, Borgio JF, AbdulAzeez S, Karthick V. Genotoxicity Evaluation of Pectin-Mediated Gold Nanoparticles on Zebrafish Embryos (Danio rerio). APPL BIOCHEM MICRO+ 2022. [DOI: 10.1134/s0003683822020156] [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: 11/23/2022]
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16
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Kori C, Shetty P, Shetty M, Ravi M. Comparative evaluation of the effects of bimaxillary and mandibular setback surgery on pharyngeal airway space and hyoid bone position in skeletal class III patients. J Clin Exp Dent 2022; 14:e404-e412. [PMID: 35582355 PMCID: PMC9094719 DOI: 10.4317/jced.59542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Accepted: 04/04/2022] [Indexed: 11/29/2022] Open
Abstract
Background To compare the effects of bimaxillary surgery ( Maxillary advancement and mandibular setback) and mandibular setback surgery (Bilateral Sagittal Split Osteotomy) on the pharyngeal airway space (PAS) and the hyoid bone position in a skeletal class III patients.
Material and Methods Thirty four subjects (21 males, 13 females, mean age 26.5 ± 8 years) with skeletal class III pattern (ANB angle of -2° to -6°) were divided into two groups of equal sizes. Group A consisted of 17 individuals who underwent Bilateral Sagittal Split Osteotomy (BSSO)and Group B consisted of 17 individuals who underwent bimaxillary surgery. In both the group, lateral cephalograms were taken, traced and analyzed for the specified parameters at 3 intervals, pre treatment (C1), post surgical (C2), and post orthodontic treatment (C3). Changes in PAS was evaluated at 3 levels i.e, nasopharynx (Upper PAS), oropharynx (Middle PAS) and hypopharynx (Lower PAS). Changes in hyoid bone position were evaluated in anteroposterior and vertical direction at all the 3 intervals.
Results There was a significant constriction of airway at oropharyngeal and hypo-pharyngeal level at C2 and C3 in both the groups. However, the reduction at the oropharyngeal airway was greater in group A. In group B, there was significant increase in the airway at the level of nasopharynx, Hyoid bone was positioned more posteriorly post-surgery in group A which did not return to its original position post treatment. In group B hyoid bone was positioned postero-inferiorly post surgically which came back to its original position by the end of orthodontic treatment.
Conclusions Patients undergoing bimaxillary surgery showed a significant increase in the airway at the level of nasopharynx. Hyoid bone returned to its original position by the end of orthodontic treatment in the bimaxillary surgery group. This study suggested that while treating a skeletal class III malocclusion it is advised to perform maxillary advancements along with mandibular setback surgery. Key words:Bimaxillary surgery, Hyoid bone, Bilateral Sagittal Split Osteotomy, Pharyngeal airway space.
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17
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Abstract
Solid organ transplant (SOT) recipients are at increased risk of opportunistic infections due to significant T-cell immune dysfunction. The incidence of clinical disseminated histoplasmosis is rare, and its variable clinical presentation and response to therapy make it challenging to treat with resultant high mortality. A high index of clinical suspicion is necessary, especially in non-endemic areas. We report our clinical experience treating a 63-year-old renal transplant patient on immunosuppressive therapy with late-onset acute miliary histoplasmosis initiated on liposomal amphotericin B (L-AmB).
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Affiliation(s)
- Jorge Verdecia
- Infectious Disease, University of Florida College of Medicine - Jacksonville, Jacksonville, USA
| | - Ashlan J Kunz Coyne
- Pharmacology, University of Florida College of Medicine - Jacksonville, Jacksonville, USA
| | - Shaorinkumar Patel
- Internal Medicine, University of Florida College of Medicine - Jacksonville, Jacksonville, USA
| | - Melissa Oye
- Internal Medicine, University of Florida College of Medicine - Jacksonville, Jacksonville, USA
| | - Malleswari Ravi
- Infectious Disease, University of Florida College of Medicine - Jacksonville, Jacksonville, USA
| | - Michael Sands
- Infectious Diseases, University of Florida College of Medicine - Jacksonville, Jacksonville, USA
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18
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Zhang Y, Verdecia J, Mgbemena O, Ravi M, Sands M. Bartonella Endocarditis: A Missed Diagnosis in Medical Practice. Cureus 2021; 13:e19309. [PMID: 34900484 PMCID: PMC8647862 DOI: 10.7759/cureus.19309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/06/2021] [Indexed: 11/17/2022] Open
Abstract
Here, we present the case of a 52-year-old patient who presented with fever, chills, and weight loss. Further workup revealed Bartonella endocarditis of the aortic valve. After six weeks of antibiotics, a follow-up transthoracic echocardiogram showed a decrease in the size of vegetation. Serologic testing based on epidemiologic history should be obtained for the workup of blood culture-negative endocarditis.
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Affiliation(s)
- Yixin Zhang
- Internal Medicine, University of Florida College of Medicine - Jacksonville, Jacksonville, USA
| | - Jorge Verdecia
- Infectious Disease, University of Florida College of Medicine - Jacksonville, Jacksonville, USA
| | - Okechukwu Mgbemena
- Cardiology, University of Florida College of Medicine - Jacksonville, Jacksonville, USA
| | - Malleswari Ravi
- Infectious Disease, University of Florida College of Medicine - Jacksonville, Jacksonville, USA
| | - Michael Sands
- Infectious Disease, University of Florida College of Medicine - Jacksonville, Jacksonville, USA
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19
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Verdecia J, Ramsubeik KP, Ravi M. Pseudoseptic Arthritis in a Patient With Psoriasis. Cureus 2021; 13:e19185. [PMID: 34873525 PMCID: PMC8635465 DOI: 10.7759/cureus.19185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/01/2021] [Indexed: 11/23/2022] Open
Abstract
A 42-year-old male with a history of untreated psoriasis and a previous episode of presumed left knee septic arthritis developed sudden onset of left knee pain, swelling, and a moderate effusion. The pathogen could not be isolated despite extensive inflammation seen in synovial fluid (SF) and synovial tissue biopsy. Whether this is culture-negative septic arthritis or pseudo-septic arthritis is the enigma, given the limited sensitivity of current available SF microbiologic testing. We present a challenging and stimulating case with no current guidelines for an optimal empiric antibiotic regimen or anti-inflammatory therapy.
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Affiliation(s)
- Jorge Verdecia
- Internal Medicine, University of Florida College of Medicine - Jacksonville, Jacksonville, USA
| | - Karishma P Ramsubeik
- Rheumatology, University of Florida College of Medicine - Jacksonville, Jacksonville, USA
| | - Malleswari Ravi
- Infectious Disease, University of Florida College of Medicine - Jacksonville, Jacksonville, USA.,Infectious Disease, University of Florida, Jacksonville, Jacksonville, USA
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20
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Gupte A, Jyot J, Ravi M, Ramphal R. High pyocyanin production and non-motility of Pseudomonas aeruginosa isolates are correlated with septic shock or death in bacteremic patients. PLoS One 2021; 16:e0253259. [PMID: 34115807 PMCID: PMC8195364 DOI: 10.1371/journal.pone.0253259] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Accepted: 06/01/2021] [Indexed: 12/26/2022] Open
Abstract
Studies of the outcome of Pseudomonas aeruginosa bacteremia (Pab) have focused mainly on antibiotic appropriateness. However, P. aeruginosa possesses many virulence factors whose roles in outcomes have not been examined in humans, except for the type III secretion system (T3SS) toxins. The purpose of this study was to examine the role of virulence factors other than the T3SS toxins. Bacterial isolates were collected from 75 patients who suffered from Pa blood stream infections. Host factors such as neutropenia, immunosuppression, comorbidities, time to effective antibiotics, source of bacteremia, and presence of multidrug resistant (MDR) isolate were studied. The isolates were analyzed for the presence of toxin genes, proteolytic activity, swimming and twitching motility, and pyocyanin production. The data were analyzed to ascertain which virulence factors correlated with poor outcomes defined as septic shock or death (SS) within 7 days. Septic shock or death occurred in 25/75 patients. Univariate analysis identified age as a host factor that exerted a significant effect on these outcomes. Ineffective antibiotics administered during the first 24 hours of treatment or MDR P. aeruginosa did not influence the frequency of SS, nor did the presence of lasB, exoA, exoS exoU, plcH genes and proteolytic activity. However, 6/8 patients infected with non-motile isolates, developed SS, p = 0.014 and 5/6 isolates that produced large amounts of pyocyanin (>18ug/ml), were associated with SS, p = 0.014. Multivariate analysis indicated that the odds ratio (OR) for development of SS with a non-motile isolate was 6.8, with a 95% confidence interval (CI) (1.37, 51.5), p = 0.030 and with high pyocyanin producing isolates, an OR of 16.9, 95% CI = (2.27, 360), p = .017. This study evaluating the role of microbial factors that significantly effect outcomes following Pa bloodstream infection suggests that P. aeruginosa strains showing high pyocyanin production and the lack of motility independently increase the risk of SS.
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Affiliation(s)
- Asmita Gupte
- Division of Infectious Diseases and Global Medicine, Department of Medicine, University of Florida, Gainesville, Florida, United States of America
- * E-mail: (AG); (RR)
| | - Jeevan Jyot
- Division of Infectious Diseases and Global Medicine, Department of Medicine, University of Florida, Gainesville, Florida, United States of America
- Department of Pharmaceutical Outcomes & Policy, College of Pharmacy, University of Florida, Gainesville, Florida, United States of America
| | - Malleswari Ravi
- Division of Infectious Diseases and Global Medicine, Department of Medicine, University of Florida, Gainesville, Florida, United States of America
| | - Reuben Ramphal
- Division of Infectious Diseases and Global Medicine, Department of Medicine, University of Florida, Gainesville, Florida, United States of America
- * E-mail: (AG); (RR)
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Abstract
An 80-year-old patient was admitted for fever, chills, and chest wall pain. He had a past medical history significant for heart failure with a cardiac resynchronization therapy pacemaker implantation. Extensive workup revealed Enterobacter cloacae endocarditis of the pacemaker leads and the mitral valve, a rare etiology with an unidentified source in our patient. He was managed with a rather unconventional method which proved to be successful. This case sheds light on non-HACEK (other than Haemophilus spp., Aggregatibacter actinomycetemcomitans, Cardiobacterium hominis, Eikenella corrodens, or Kingella spp). gram-negative organisms, and particularly E. cloacae, as uncommon causes of endocarditis with elevated mortality, and discusses potential treatment modalities.
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Affiliation(s)
- Naji Maaliki
- Department of Internal Medicine, University of Florida COM-Jacksonville, 4th Floor, 655 8th W 8th Street, Jacksonville, FL, USA
| | - Jorge Verdecia
- Department of Infectious Diseases, University of Florida COM-Jacksonville, 655 8th W 8th Street, Jacksonville, FL, USA
| | - Malleswari Ravi
- Department of Infectious Diseases, University of Florida COM-Jacksonville, 655 8th W 8th Street, Jacksonville, FL, USA
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22
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Ravi M, Trinidad J, Spaccarelli N, Kaffenberger B. 322 The impact of comorbidity identification on outcomes of pyoderma gangrenosum: A retrospective cohort study of previously hospitalized patients. J Invest Dermatol 2021. [DOI: 10.1016/j.jid.2021.02.344] [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: 11/25/2022]
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23
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Karthick V, Kumar D, Ariga K, Vineeth Kumar CM, Ganesh Kumar V, Vasanth K, Stalin Dhas T, Ravi M, Baalamurugan J. Incorporation of 5-Nitroisatin for Tailored Hydroxyapatite Nanorods and its Effect on Cervical Cancer Cells: A Nanoarchitectonics Approach. J Inorg Organomet Polym Mater 2021. [DOI: 10.1007/s10904-021-01891-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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24
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Shanmugapriya A, Kalaiarasi G, Ravi M, Sparkes HA, Kalaivani P, Prabhakaran R. Palladium-mediated C–O bond activation of benzopyrone in 4-oxo-4 H-chromone-3-carbaldehyde-4( N)-substituted thiosemicarbazone: synthesis, structure, nucleic acid/albumin interaction, DNA cleavage, antioxidant and cytotoxic studies. NEW J CHEM 2021. [DOI: 10.1039/d1nj04076f] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Palladium ion-mediated C–O activation at the C2 carbon of the benzopyrone moiety of 3-formylchromone-4(N)-substituted thiosemicarbazone (HL1–4) has been observed in square-planar palladium(ii) complexes.
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Affiliation(s)
- A. Shanmugapriya
- Department of Chemistry, Bharathiar University, Coimbatore 641 046, India
| | - G. Kalaiarasi
- Department of Chemistry, Bharathiar University, Coimbatore 641 046, India
| | - M. Ravi
- Department of Biochemistry, University of Madras, Guindy Campus, Chennai-25, India
| | - H. A. Sparkes
- University of Bristol, School of Chemistry, Cantock's Close, Bristol BS8 1TS, UK
| | - P. Kalaivani
- Department of Chemistry, Nirmala College for Women, Bharathiar University, Coimbatore 641018, India
| | - R. Prabhakaran
- Department of Chemistry, Bharathiar University, Coimbatore 641 046, India
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25
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Sivabalan T, Thirunarayanan V, Cheralathan S, Ravi M, Shankar SS. Analysis of functional outcome of management of scaphoid waist fractures with herbert screw fixation. J Nat Sci Biol Med 2021. [DOI: 10.4103/jnsbm.jnsbm_152_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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26
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Ravi M, Sudhakar T, Hari Haran S, Sudhakaran R, Stalin Dhas T. Nanoparticles based DNA vaccine in marine water crabs (Scylla serrata) for protection against white spot syndrome virus (WSSV). Biocatalysis and Agricultural Biotechnology 2020. [DOI: 10.1016/j.bcab.2020.101764] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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27
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Joshua V, Kanagasabai K, Sabarinathan R, Ravi M, Kirubakaran BK, Ramachandran V, Shete V, Gowri AK, Murhekar MV. Space time analysis of dengue fever diagnosed through a network of laboratories in India from 2014-2017. J Vector Borne Dis 2020; 57:221-225. [PMID: 34472505 DOI: 10.4103/0972-9062.311774] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND & OBJECTIVES The Department of Health Research and the Indian Council of Medical Research, Government of India, have established Virus Research and Diagnostic Laboratory Network (VRDLN) to strengthen the laboratory capacity in the country for providing timely diagnosis of disease outbreaks. Fifty-one VRDLs were functional as on December 2017 and had reported about dengue fever across Indian states. The objectives of the study were to detect space time clusters and purely temporal clusters of dengue using Kulldorff's SaTScan statistics using patient level information; and to identify regions at greater risk of developing the disease using Kriging technique aggregating at district level. METHODS A total of 211,432 patients from 51 VRDLs were investigated for IgM antibodies or NS1 antigen against dengue virus during the period from 1 January 2014 to 31 December 2017 and among them 60,096 (28.4%) were found to be positive. Kulldorff's space time analysis was used to identify significant clusters over space and time. Kriging technique was used to interpolate dengue data for areas not physically sampled using the relationship in the spatial arrangement of the data set. Maps obtained using both the methods were overlaid to identify the regions at greater risk of developing the disease. RESULTS Kulldorff Space time Scan Statistics using the Bernoulli model with monthly precision revealed eight statistically significant clusters (P <0.001) for the time period, 1 January 2014 to 31 December 2017. Eight significant clusters identified were districts of Nagpur, Jhunjhunu, Gadag, Dakshin Kannada, Kancheepuram, Sivaganga, Ernakulam and Malda. The purely temporal clusters occurred during the last quarter of 2015 and 2016. The Kriging technique identified north eastern part of the country (Arunachal Pradesh, Nagaland and Manipur) and Gujarat. INTERPRETATION & CONCLUSION Dengue fever has spread in all directions in the country. Hence, it is need of the hour to perform an in-depth investigation.
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Affiliation(s)
- Vasna Joshua
- ICMR-National Institute of Epidemiology, Chennai, India
| | - K Kanagasabai
- ICMR-National Institute of Epidemiology, Chennai, India
| | | | - M Ravi
- ICMR-National Institute of Epidemiology, Chennai, India
| | | | | | - Vishal Shete
- ICMR-National Institute of Epidemiology, Chennai, India
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28
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Dhas TS, Sowmiya P, Kumar VG, Ravi M, Suthindhiran K, Borgio JF, Narendrakumar G, Kumar VR, Karthick V, Kumar CV. Antimicrobial effect of Sargassum plagiophyllum mediated gold nanoparticles on Escherichia coli and Salmonella typhi. Biocatalysis and Agricultural Biotechnology 2020. [DOI: 10.1016/j.bcab.2020.101627] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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29
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Murhekar MV, Ashok M, Kanagasabai K, Joshua V, Ravi M, Sabarinathan R, Kirubakaran BK, Ramachandran V, Shete V, Gupta N, Mehendale SM. Epidemiology of Hepatitis A and Hepatitis E Based on Laboratory Surveillance Data-India, 2014-2017. Am J Trop Med Hyg 2019; 99:1058-1061. [PMID: 30182922 DOI: 10.4269/ajtmh.18-0232] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Hepatitis A and hepatitis E viruses (HAV and HEV) are the most common etiologies of viral hepatitis in India. To better understand the epidemiology of these infections, laboratory surveillance data generated during 2014-2017, by a network of 51 virology laboratories, were analyzed. Among 24,000 patients tested for both HAV and HEV, 3,017 (12.6%) tested positive for HAV, 3,865 (16.1%) for HEV, and 320 (1.3%) for both HAV and HEV. Most (74.6%) HAV patients were aged ≤ 19 years, whereas 76.9% of HEV patients were aged ≥ 20 years. These laboratories diagnosed 12 HAV and 31 HEV clusters, highlighting the need for provision of safe drinking water and improvements in sanitation. Further expansion of the laboratory network and continued surveillance will provide data necessary for informed decision-making regarding introduction of hepatitis-A vaccine into the immunization program.
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Affiliation(s)
- Manoj V Murhekar
- National Institute of Epidemiology, Indian Council of Medical Research, Chennai, India
| | - M Ashok
- National Institute of Epidemiology, Indian Council of Medical Research, Chennai, India
| | - K Kanagasabai
- National Institute of Epidemiology, Indian Council of Medical Research, Chennai, India
| | - Vasna Joshua
- National Institute of Epidemiology, Indian Council of Medical Research, Chennai, India
| | - M Ravi
- National Institute of Epidemiology, Indian Council of Medical Research, Chennai, India
| | - R Sabarinathan
- National Institute of Epidemiology, Indian Council of Medical Research, Chennai, India
| | - B K Kirubakaran
- National Institute of Epidemiology, Indian Council of Medical Research, Chennai, India
| | - V Ramachandran
- National Institute of Epidemiology, Indian Council of Medical Research, Chennai, India
| | - Vishal Shete
- National Institute of Epidemiology, Indian Council of Medical Research, Chennai, India
| | - Nivedita Gupta
- Division of Epidemiology and Communicable Diseases, Indian Council of Medical Research, New Delhi, India
| | - Sanjay M Mehendale
- Division of Epidemiology and Communicable Diseases, Indian Council of Medical Research, New Delhi, India
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30
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Murhekar M, Joshua V, Kanagasabai K, Shete V, Ravi M, Ramachandran R, Sabarinathan R, Kirubakaran B, Gupta N, Mehendale S. Epidemiology of dengue fever in India, based on laboratory surveillance data, 2014–2017. Int J Infect Dis 2019; 84S:S10-S14. [DOI: 10.1016/j.ijid.2019.01.004] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2018] [Revised: 01/05/2019] [Accepted: 01/07/2019] [Indexed: 11/17/2022] Open
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31
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Murhekar M, Kanagasabai K, Shete V, Joshua V, Ravi M, Kirubakaran BK, Ramachandran R, Sabarinathan R, Gupta N. Epidemiology of chikungunya based on laboratory surveillance data—India, 2016–2018. Trans R Soc Trop Med Hyg 2019; 113:259-262. [DOI: 10.1093/trstmh/try141] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Revised: 11/14/2018] [Accepted: 12/14/2018] [Indexed: 11/12/2022] Open
Affiliation(s)
- Manoj Murhekar
- Indian Council of Medical Research–National Institute of Epidemiology, R127, Tamil Nadu Housing Board, Ayapakkam, Chennai, Tamil Nadu, India
| | - K Kanagasabai
- Indian Council of Medical Research–National Institute of Epidemiology, R127, Tamil Nadu Housing Board, Ayapakkam, Chennai, Tamil Nadu, India
| | - Vishal Shete
- Indian Council of Medical Research–National Institute of Epidemiology, R127, Tamil Nadu Housing Board, Ayapakkam, Chennai, Tamil Nadu, India
| | - Vasna Joshua
- Indian Council of Medical Research–National Institute of Epidemiology, R127, Tamil Nadu Housing Board, Ayapakkam, Chennai, Tamil Nadu, India
| | - M Ravi
- Indian Council of Medical Research–National Institute of Epidemiology, R127, Tamil Nadu Housing Board, Ayapakkam, Chennai, Tamil Nadu, India
| | - B K Kirubakaran
- Indian Council of Medical Research–National Institute of Epidemiology, R127, Tamil Nadu Housing Board, Ayapakkam, Chennai, Tamil Nadu, India
| | - R Ramachandran
- Indian Council of Medical Research–National Institute of Epidemiology, R127, Tamil Nadu Housing Board, Ayapakkam, Chennai, Tamil Nadu, India
| | - R Sabarinathan
- Indian Council of Medical Research–National Institute of Epidemiology, R127, Tamil Nadu Housing Board, Ayapakkam, Chennai, Tamil Nadu, India
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33
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Joshua V, Murhekar MV, Ashok M, Kanagasabai K, Ravi M, Sabarinathan R, Kirubakaran BK, Ramachandran V, Gupta N, Mehendale S. Mapping dengue cases through a national network of laboratories, 2014-2015. Indian J Med Res 2018; 144:938-941. [PMID: 28474634 PMCID: PMC5433290 DOI: 10.4103/ijmr.ijmr_673_16] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Affiliation(s)
- Vasna Joshua
- ICMR-National Institute of Epidemiology, Chennai 600 077, India
| | | | - M Ashok
- ICMR-National Institute of Epidemiology, Chennai 600 077, India
| | - K Kanagasabai
- ICMR-National Institute of Epidemiology, Chennai 600 077, India
| | - M Ravi
- ICMR-National Institute of Epidemiology, Chennai 600 077, India
| | - R Sabarinathan
- ICMR-National Institute of Epidemiology, Chennai 600 077, India
| | - B K Kirubakaran
- ICMR-National Institute of Epidemiology, Chennai 600 077, India
| | - V Ramachandran
- ICMR-National Institute of Epidemiology, Chennai 600 077, India
| | - Nivedita Gupta
- Division of Epidemiology and Communicable Diseases, Indian Council of Medical Research, New Delhi 110 29, India
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34
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Affiliation(s)
- M. Ravi
- Genetic Research Cell, Sri Ramachandra Medical College and Research Institute, Porur, Chennai 600 116, Tamil Nadu, India
| | - Solomon F. D. Paul
- Genetic Research Cell, Sri Ramachandra Medical College and Research Institute, Porur, Chennai 600 116, Tamil Nadu, India
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35
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Ravi M, Paul SF, Venkatachalam P. A Humoral Immune Index of Clinically Normal Human Subject. INT J HUM GENET 2017. [DOI: 10.1080/09723757.2002.11885804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- M. Ravi
- Genetic Research Cell, Sri Ramachandra Medical College and Research Institute, Porur, Chennai 600 116, Tamil Nadu, India. Tel : +91-44-4765609, +91-44-4767008
| | - Solomon F.D. Paul
- Genetic Research Cell, Sri Ramachandra Medical College and Research Institute, Porur, Chennai 600 116, Tamil Nadu, India. Tel : +91-44-4765609, +91-44-4767008
| | - P. Venkatachalam
- Genetic Research Cell, Sri Ramachandra Medical College and Research Institute, Porur, Chennai 600 116, Tamil Nadu, India. Tel : +91-44-4765609, +91-44-4767008
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Ravi M, Venkateswaran N, Paul SF, Abraham V, Venkatachalam P. In vitro Immunogenetic Effects of 532 nm Short YAG Laser Pulses on Human Lymphocytes. INT J HUM GENET 2017. [DOI: 10.1080/09723757.2002.11885778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- M. Ravi
- Genetic Research Cell, Sri Ramachandra Medical College and Research Institute, Porur, Chennai 600 116, Tamil Nadu, India. Fax: +91-44-4767008
| | - N. Venkateswaran
- Genetic Research Cell, Sri Ramachandra Medical College and Research Institute, Porur, Chennai 600 116, Tamil Nadu, India. Fax: +91-44-4767008
| | - Solomon F.D. Paul
- Genetic Research Cell, Sri Ramachandra Medical College and Research Institute, Porur, Chennai 600 116, Tamil Nadu, India. Fax: +91-44-4767008
| | - Vinsu Abraham
- Genetic Research Cell, Sri Ramachandra Medical College and Research Institute, Porur, Chennai 600 116, Tamil Nadu, India. Fax: +91-44-4767008
| | - P. Venkatachalam
- Genetic Research Cell, Sri Ramachandra Medical College and Research Institute, Porur, Chennai 600 116, Tamil Nadu, India. Fax: +91-44-4767008
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Subhashini NJP, Ravi M, Cherupally D, China Raju B, Reddy EV, Bee H. Synthesis, characterization, and antimicrobial activity of novel substituted 2H-chromenyl acrylates. RUSS J GEN CHEM+ 2017. [DOI: 10.1134/s1070363216120586] [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: 11/23/2022]
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Chandra Babu B, Rao BV, Ravi M, Babu S. Structural, microstructural, optical, and dielectric properties of Mn2+: Willemite Zn2SiO4 nanocomposites obtained by a sol-gel method. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2016.07.074] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [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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Boopathi T, Singh SB, Ravi M, Manju T. Distribution and Biology of Mallada desjardinsi (Neuroptera: Chrysopidae) in India and Its Predatory Potential Against Aleurodicus dispersus (Hemiptera: Aleyrodidae). J Econ Entomol 2016; 109:1988-1994. [PMID: 27417642 PMCID: PMC5066477 DOI: 10.1093/jee/tow154] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Accepted: 06/13/2016] [Indexed: 06/06/2023]
Abstract
In this study, we report the prevalence of Mallada desjardinsi (Navas) in seven geographical regions of India and provide the first report of its kind outlining the preying of all stages of the spiraling whitefly, Aleurodicus dispersus Russell, by M. desjardinsi Sampling was conducted in seven regions of two provinces in India, Bengaluru (Karnataka) and Tiruppur (Tamil Nadu), which demonstrated that M. desjardinsi populations were most dense at the former and least at the later. To the best of our knowledge, this is the first report of its kind outlining observations regarding the biology and feeding potential of M. desjardinsi on A. dispersus under laboratory conditions. It was observed that the second nymphal stadium of A. dispersus was most preferred prey for M. desjardinsi and the least preferred was the A. dispersus adult. It was also seen that the third stadium of M. desjardinsi consumed more A. dispersus individuals than any other life stages. The longevity of female and the total developmental period of M. desjardinsi were computed as 27.6 ± 1.69 and 24.1 ± 0.99 d, respectively. The average total number of eggs laid by the M. desjardinsi female was 211.1 ± 6.35 eggs. M. desjardinsi was observed to be extremely efficient in terms of prey searching and predatory potential with respect to A. dispersus The results of this study indicate strongly that M. desjardinsi has the potential to be used for the control of A. dispersus.
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Affiliation(s)
- T Boopathi
- Division of Agricultural Entomology, ICAR Research Complex for NEH Region, Mizoram Centre, Kolasib-796081, Mizoram, India (; ; )
| | - S B Singh
- Division of Agricultural Entomology, ICAR Research Complex for NEH Region, Mizoram Centre, Kolasib-796081, Mizoram, India (; ; )
| | - M Ravi
- Krishi Vigyan Kendra, Tamil Nadu Agricultural University, Sirugamani, Tiruchirappalli-639115, Tamil Nadu, India
| | - T Manju
- Division of Agricultural Entomology, ICAR Research Complex for NEH Region, Mizoram Centre, Kolasib-796081, Mizoram, India (; ; )
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Chaturvedi A, Rao PN, Kumar MA, Ravishankar B, Rao N, Ravi M. Effect and Mechanism of Virechana Karma (Therapeutic Purgation) Over Fructose-Induced Metabolic Syndrome: An Experimental Study. J Evid Based Complementary Altern Med 2015. [PMID: 26207023 DOI: 10.1177/2156587215596283] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Panchakarma (biopurification methods) is one of the modes of ayurveda to treat disorders of the body. Virechana karma (therapeutic purgation), one among the Panchakarma, is a purification process that is commonly used to treat metabolic disorders like obesity and diabetes mellitus. Hence this study was planned to provide evidence through animal experiments. METHODS Albino rats were subject to Virechana karma (therapeutic purgation) to evaluate the influence of therapy and its mechanism over fructose-induced metabolic syndrome. RESULTS Results show that Virechana is effective in the management of the metabolic syndrome with decrease in the fecal fat content, fasting blood glucose, serum triglyceride, and reduced fatty changes in liver, heart, and kidney in comparison with the positive control group. CONCLUSION Experimental evaluation showed decrease in fatty acid in the storage like liver, kidney, heart, and muscle adipose tissue can indirectly increase the insulin sensitivity in insulin receptor present at skeletal muscles.
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Affiliation(s)
| | | | | | - B Ravishankar
- SDM Centre for Research in Ayurveda and Allied Sciences, Udupi, Karnataka, India
| | - Niranjan Rao
- SDM College of Ayurveda, Udupi, Karnataka, India
| | - M Ravi
- SDM Centre for Research in Ayurveda and Allied Sciences, Udupi, Karnataka, India
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Raj KK, Ganesh Kumar V, Leela Madhuri C, Mathi P, Durga Lakshmi R, Ravi M, Sri Ramudu B, Venkata Rao SV, Ramachandran D. Designing of potential inhibitors against Staphylococcus aureus sortase A: Combined analogue and structure based approach with in vitro validation. J Mol Graph Model 2015; 60:89-97. [PMID: 26119984 DOI: 10.1016/j.jmgm.2015.05.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [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: 02/03/2015] [Revised: 05/15/2015] [Accepted: 05/18/2015] [Indexed: 11/30/2022]
Abstract
Staphylococcus aureus sortase A is an attractive target of Gram-positive bacteria that plays a crucial role in anchoring of surface proteins to peptidoglycan present in bacterial cell wall. Inhibiting sortase A is an elementary and essential effort in preventing the pathogenesis. In this context, in silico virtual screening of in-house database was performed using ligand based pharmacophore model as a filter. The developed pharmacophore model AAHR 11 consists of two acceptors, one hydrophobic and one ring aromatic feature. Top ranked molecule KKR1 was docked into the active site of the target. After profound analysis, it was analyzed and optimized based on the observations from its binding pose orientation. Upgraded version of KKR1 was KKR2 and has improved docking score, binding interactions and best fit in the binding pocket. KKR1 along with KKR2 were further validated using 100 ns molecular dynamic studies. Both KKR1 and KKR2 contain Indole-thiazolidine moiety and were synthesized. The disk diffusion assay has good initial results (ZI of KKR1, KKR2 were 24, 38 mm at 10 μg/mL and ZI of Ampicillin was 22 at 10 μg/mL) and calculated MICs of the molecules (KKR1 5.56±0.28 μg/mL, KKR2 1.32±0.12 μg/mL, Ampicillin 8±1.1 μg/mL) were in good agreement with standard drug Ampicillin. KKR1 has shown IC50 of 1.23±0.14 μM whereas the optimized lead molecule KKR2 show IC50 of 0.008±0.07 μM. Results from in silico were validated by in vitro studies and proved that indole-thiazolidine molecules would be useful for future development as lead molecules against S. aureus sortase A.
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Affiliation(s)
- K Kranthi Raj
- Department of Chemistry, Acharya Nagarjuna University, Nagarjuna Nagar, Guntur 522 510, India
| | - Veeramachaneni Ganesh Kumar
- Department of Biotechnology, K L E F University, Green Fields, Vaddeswaram, Guntur (Dt.), 522 502 Guntur, AP, India
| | - Chalasani Leela Madhuri
- Department of Biotechnology, K L E F University, Green Fields, Vaddeswaram, Guntur (Dt.), 522 502 Guntur, AP, India
| | - Pardhasaradhi Mathi
- Department of Biotechnology, K L E F University, Green Fields, Vaddeswaram, Guntur (Dt.), 522 502 Guntur, AP, India
| | - Ravulapati Durga Lakshmi
- Department of Electronics and Computer Engineering, K L E F University, Green Fields, Vaddeswaram, Guntur (Dt.), 522 502 Guntur, AP, India
| | - M Ravi
- Bioinformatics Division, Environmental Microbiology Lab, Department of Botany, Osmania University, Hyderabad 500 007, India
| | - B Sri Ramudu
- Department of Chemistry, Acharya Nagarjuna University, Nagarjuna Nagar, Guntur 522 510, India
| | - S V Venkata Rao
- Department of Chemistry, Rajiv Gandhi University of Knowledge Technologies, Nuzvid 521 201 AP, India
| | - D Ramachandran
- Department of Chemistry, Acharya Nagarjuna University, Nagarjuna Nagar, Guntur 522 510, India.
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Talikoti AT, Rao S, Ravi M, Priyamargavi H. A case of subacute intestinal obstruction with overt hypothyroidism in stupor scheduled for emergency laparotomy. Indian J Anaesth 2014; 58:347-9. [PMID: 25024488 PMCID: PMC4091011 DOI: 10.4103/0019-5049.135085] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Affiliation(s)
- Anand T Talikoti
- Department of Anaesthesiology and Critical Care, Sri Devaraj Urs Medical College, SDUAHER, Deemed University, Tamaka, Kolar, Karnataka, India
| | - Shrirang Rao
- Department of Anaesthesiology and Critical Care, Sri Devaraj Urs Medical College, SDUAHER, Deemed University, Tamaka, Kolar, Karnataka, India
| | - M Ravi
- Department of Anaesthesiology and Critical Care, Sri Devaraj Urs Medical College, SDUAHER, Deemed University, Tamaka, Kolar, Karnataka, India
| | - H Priyamargavi
- Department of Anaesthesiology and Critical Care, Sri Devaraj Urs Medical College, SDUAHER, Deemed University, Tamaka, Kolar, Karnataka, India
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Kumar KK, Ravi M, Pavani Y, Bhavani S, Sharma A, Narasimha Rao V. Investigations on PEO/PVP/NaBr complexed polymer blend electrolytes for electrochemical cell applications. J Memb Sci 2014. [DOI: 10.1016/j.memsci.2013.12.022] [Citation(s) in RCA: 153] [Impact Index Per Article: 15.3] [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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Garcia Martin A, Fernandez Golfin C, Salido Tahoces L, Fernandez Santos S, Jimenez Nacher J, Moya Mur J, Velasco Valdazo E, Hernandez Antolin R, Zamorano Gomez J, Veronesi F, Corsi C, Caiani E, Lamberti C, Tsang W, Holmgren C, Guo X, Bateman M, Iaizzo P, Vannier M, Lang R, Patel A, Adamayn K, Tumasyan LR, Chilingaryan A, Nasr G, Eleraki A, Farouk N, Axelsson A, Langhoff L, Jensen M, Vejlstrup N, Iversen K, Bundgaard H, Watanabe T, Iwai-Takano M, Attenhofer Jost CH, Pfyffer M, Seifert B, Scharf C, Candinas R, Medeiros-Domingo A, Chin JY, Yoon H, Vollbon W, Singbal Y, Rhodes K, Wahi S, Katova TM, Simova II, Hristova K, Kostova V, Pauncheva B, Bircan A, Sade L, Eroglu S, Pirat B, Okyay K, Bal U, Muderrisoglu H, Heggemann F, Buggisch H, Welzel G, Doesch C, Hansmann J, Schoenberg S, Borggrefe M, Wenz F, Papavassiliu T, Lohr F, Roussin I, Drakopoulou M, Rosen S, Sharma R, Prasad S, Lyon A, Carpenter J, Senior R, Breithardt OA, Razavi H, Arya A, Nabutovsky Y, Ryu K, Gaspar T, Kosiuk J, Eitel C, Hindricks G, Piorkowski C, Pires S, Nunes A, Cortez-Dias N, Belo A, Zimbarra Cabrita I, Sousa C, Pinto F, Baron T, Johansson K, Flachskampf F, Christersson C, Pires S, Cortez-Dias N, Nunes A, Belo A, Zimbarra Cabrita I, Sousa C, Pinto F, Santoro A, Federico Alvino F, Giovanni Antonelli G, Raffaella De Vito R, Roberta Molle R, Sergio Mondillo S, Gustafsson M, Alehagen U, Johansson P, Tsukishiro Y, Onishi T, Chimura M, Yamada S, Taniguchi Y, Yasaka Y, Kawai H, Souza JRM, Zacharias LGT, Pithon KR, Ozahata TM, Cliquet AJ, Blotta MH, Nadruz WJ, Fabiani I, Conte L, Cuono C, Liga R, Giannini C, Barletta V, Nardi C, Delle Donne M, Palagi C, Di Bello V, Glaveckaite S, Valeviciene N, Palionis D, Laucevicius A, Hristova K, Bogdanova V, Ferferieva V, Shiue I, Castellon X, Boles U, Rakhit R, Shiu MF, Gilbert T, Papachristidis A, Henein MY, Westholm C, Johnson J, Jernberg T, Winter R, Ghosh Dastidar A, Augustine D, Cengarle M, Mcalindon E, Bucciarelli-Ducci C, Nightingale A, Onishi T, Watanabe T, Fujita M, Mizukami Y, Sakata Y, Nakatani S, Nanto S, Uematsu M, Saraste A, Luotolahti M, Varis A, Vasankari T, Tunturi S, Taittonen M, Rautakorpi P, Airaksinen J, Ukkonen H, Knuuti J, Boshchenko A, Vrublevsky A, Karpov R, Yoshikawa H, Suzuki M, Hashimoto G, Kusunose Y, Otsuka T, Nakamura M, Sugi K, Rosner S, Orban M, Lesevic H, Karl M, Hadamitzky M, Sonne C, Panaro A, Martinez F, Huguet M, Moral S, Palet J, Oller G, Cuso I, Jornet A, Rodriguez Palomares J, Evangelista A, Stoebe S, Tarr A, Pfeiffer D, Hagendorff A, Gilmanov D, Baroni M, Cerone E, Galli E, Berti S, Glauber M, Soesanto A, Yuniadi Y, Mansyur M, Kusmana D, Venkateshvaran A, Dash PK, Sola S, Govind SC, Shahgaldi K, Winter R, Brodin LA, Manouras A, Dokainish H, Sadreddini M, Nieuwlaat R, Lonn E, Healey J, Nguyen V, Cimadevilla C, Dreyfus J, Codogno I, Vahanian A, Messika-Zeitoun D, Lim YJ, Kawamura A, Kawano S, Polte C, Gao S, Lagerstrand K, Cederbom U, Bech-Hanssen O, Baum J, Beeres F, Van Hall S, Boering Y, Zeus T, Kehmeier E, Kelm M, Balzer J, Della Mattia A, Pinamonti B, Abate E, Nicolosi G, Proclemer A, Bassetti M, Luzzati R, Sinagra G, Hlubocka Z, Jiratova K, Dostalova G, Hlubocky J, Dohnalova A, Linhart A, Palecek T, Sonne C, Lesevic H, Karl M, Rosner S, Hadamitzky M, Ott I, Malev E, Reeva S, Zemtsovsky E, Igual Munoz B, Alonso Fernandez Pau P, Miro Palau Vicente V, Maceira Gonzalez Alicia A, Estornell Erill J, Andres La Huerta A, Donate Bertolin L, Valera Martinez F, Salvador Sanz Antonio A, Montero Argudo Anastasio A, Nemes A, Kalapos A, Domsik P, Chadaide S, Sepp R, Forster T, Onaindia J, Arana X, Cacicedo A, Velasco S, Rodriguez I, Capelastegui A, Sadaba M, Gonzalez J, Salcedo A, Laraudogoitia E, Archontakis S, Gatzoulis K, Vlasseros I, Arsenos P, Tsiachris D, Vouliotis A, Sideris S, Karistinos G, Kalikazaros I, Stefanadis C, Ancona R, Comenale Pinto S, Caso P, Coppola M, Arenga F, Cavallaro C, Vecchione F, D'onofrio A, Calabro R, Correia CE, Moreira D, Cabral C, Santos J, Cardoso J, Igual Munoz B, Maceira Gonzalez A, Estornell Erill Jordi J, Jimenez Carreno R, Arnau Vives M, Monmeneu Menadas J, Domingo-Valero D, Sanchez Fernandez E, Montero Argudo Anastasio A, Zorio Grima E, Cincin A, Tigen K, Karaahmet T, Dundar C, Sunbul M, Guler A, Bulut M, Basaran Y, Mordi I, Carrick D, Berry C, Tzemos N, Cruz I, Ferreira A, Rocha Lopes L, Joao I, Almeida A, Fazendas P, Cotrim C, Pereira H, Ochoa JP, Fernandez A, Filipuzzi J, Casabe J, Salmo J, Vaisbuj F, Ganum G, Di Nunzio H, Veron L, Guevara E, Salemi V, Nerbass F, Portilho N, Ferreira Filho J, Pedrosa R, Arteaga-Fernandez E, Mady C, Drager L, Lorenzi-Filho G, Marques J, Almeida AMG, Menezes M, Silva G, Placido R, Amaro C, Brito D, Diogo A, Lourenco MR, Azevedo O, Moutinho J, Nogueira I, Machado I, Portugues J, Quelhas I, Lourenco A, Calore C, Muraru D, Melacini P, Badano L, Mihaila S, Puma L, Peluso D, Casablanca S, Ortile A, Iliceto S, Kang MK, Yu S, Park J, Kim S, Park T, Mun HS, C S, Cho SR, Han S, Lee N, Khalifa EA, Hamodraka E, Kallistratos M, Zacharopoulou I, Kouremenos N, Mavropoulos D, Tsoukas A, Kontogiannis N, Papanikolaou N, Tsoukanas K, Manolis A, Villagraz Tecedor L, Jimenez Lopez Guarch C, Alonso Chaterina S, Blazquez Arrollo L, Lopez Melgar B, Veitia Sarmiento A, Mayordomo Gomez S, Escribano Subias M, Lichodziejewska B, Kurnicka K, Goliszek S, Dzikowska Diduch O, Kostrubiec M, Krupa M, Grudzka K, Ciurzynski M, Palczewski P, Pruszczyk P, Sakata K, Ishiguro M, Kimura G, Uesugo Y, Takemoto K, Minamishima T, Futuya M, Matsue S, Satoh T, Yoshino H, Signorello M, Gianturco L, Colombo C, Stella D, Atzeni F, Boccassini L, Sarzi-Puttini P, Turiel M, Kinova E, Deliiska B, Krivoshiev S, Goudev A, De Stefano F, Santoro C, Buonauro A, Schiano-Lomoriello V, Muscariello R, De Palma D, Galderisi M, Ranganadha Babu B, Chidambaram S, Sangareddi V, Dhandapani V, Ravi M, Meenakshi K, Muthukumar D, Swaminathan N, Ravishankar G, Bruno RM, Giardini G, Catizzo B, Brustia R, Malacrida S, Armenia S, Cauchy E, Pratali L, Cesana F, Alloni M, Vallerio P, De Chiara B, Musca F, Belli O, Ricotta R, Siena S, Moreo A, Giannattasio C, Magnino C, Omede' P, Avenatti E, Presutti D, Sabia L, Moretti C, Bucca C, Gaita F, Veglio F, Milan A, Eichhorn J, Springer W, Helling A, Alarajab A, Loukanov T, Ikeda M, Kijima Y, Akagi T, Toh N, Oe H, Nakagawa K, Tanabe Y, Watanabe N, Ito H, Hascoet S, Hadeed K, Marchal P, Bennadji A, Peyre M, Dulac Y, Heitz F, Alacoque X, Chausseray G, Acar P, Kong W, Ling L, Yip J, Poh K, Vassiliou V, Rekhraj S, Hoole S, Watkinson O, Kydd A, Boyd J, Mcnab D, Densem C, Shapiro L, Rana B, Potpara T, Djikic D, Polovina M, Marcetic Z, Peric V, Lip G, Gaudron P, Niemann M, Herrmann S, Hu K, Strotmann J, Beer M, Bijnens B, Liu D, Ertl G, Weidemann F, Peric V, Jovanovic A, Djikic D, Otasevic P, Kochanowski J, Piatkowski R, Scislo P, Grabowski M, Marchel M, Opolski G, Bandera F, Guazzi M, Arena R, Corra U, Ghio S, Forfia P, Rossi A, Dini F, Cahalin L, Temporelli L, Rallidis L, Tsangaris I, Makavos G, Anthi A, Pappas A, Orfanos S, Lekakis J, Anastasiou-Nana M, Kuznetsov VA, Krinochkin DV, Yaroslavskaya EI, Zaharova EH, Pushkarev GS, Mizia-Stec K, Wita K, Mizia M, Loboz-Grudzien K, Szwed H, Kowalik I, Kukulski T, Gosciniak P, Kasprzak J, Plonska-Gosciniak E, Cimino S, Pedrizzetti G, Tonti G, Cicogna F, Petronilli V, De Luca L, Iacoboni C, Agati L, Hoffmann R, Barletta G, Von Bardeleben S, Kasprzak J, Greis C, Vanoverschelde J, Becher H, Galrinho A, Moura Branco L, Fiarresga A, Cacela D, Ramos R, Cruz Ferreira R, Van Den Oord S, Akkus Z, Bosch J, Renaud G, Sijbrands E, Verhagen H, Van Der Lugt A, Van Der Steen A, Schinkel A, Mordi I, Tzemos N, Stanton T, Delgado D, Yu E, Drakopoulou M, Gonzalez-Gonzalez A, Karonis T, Roussin I, Babu-Narayan S, Swan L, Senior R, Li W, Parisi V, Pagano G, Pellegrino T, Femminella G, De Lucia C, Formisano R, Cuocolo A, Perrone Filardi P, Leosco D, Rengo G, Unlu S, Farsalinos K, Amelot K, Daraban A, Ciarka A, Delcroix M, Voigt J, Miskovic A, Poerner T, Goebel B, Stiller C, Moritz A, Sakata K, Uesugo Y, Kimura G, Ishiguro M, Takemoto K, Minamishima T, Futuya M, Satoh T, Yoshino H, Miyoshi T, Tanaka H, Kaneko A, Matsumoto K, Imanishi J, Motoji Y, Mochizuki Y, Minami H, Kawai H, Hirata K, Wutthimanop A, See O, Vathesathokit P, Yamwong S, Sritara P, Rosner A, Kildal A, Stenberg T, Myrmel T, How O, Capriolo M, Frea S, Giustetto C, Scrocco C, Benedetto S, Grosso Marra W, Morello M, Gaita F, Garcia-Gonzalez P, Cozar-Santiago P, Chacon-Hernandez N, Ferrando-Beltran M, Fabregat-Andres O, De La Espriella-Juan R, Fontane-Martinez C, Jurado-Sanchez R, Morell-Cabedo S, Ridocci-Soriano F, Mihaila S, Piasentini E, Muraru D, Peluso D, Casablanca S, Puma L, Naso P, Iliceto S, Vinereanu D, Badano L, Tarzia P, Villano A, Figliozzi S, Russo G, Parrinello R, Lamendola P, Sestito A, Lanza G, Crea F, Sulemane S, Panoulas V, Bratsas A, Frankel A, Nihoyannopoulos P, Dores H, Andrade M, Almeida M, Goncalves P, Branco P, Gaspar A, Gomes A, Horta E, Carvalho M, Mendes M, Yue W, Li X, Chen Y, Luo Y, Gu P, Yiu K, Siu C, Tse H, Cho E, Lee S, Hwang B, Kim D, Jang S, Jeon H, Youn H, Kim J. Poster session Thursday 12 December - PM: 12/12/2013, 14:00-18:00 * Location: Poster area. Eur Heart J Cardiovasc Imaging 2013. [DOI: 10.1093/ehjci/jet204] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Abstract
Hibernomas are uncommon benign tumors of brown fat that occur in humans and various animal species. They have not been observed in the orbit of dogs, humans, or other animals. Here we report clinical, light and electron microscopic, and immunohistochemical features of a series of 7 hibernomas arising in the orbital region of dogs. These neoplasms occurred in adult dogs with no breed predilection. The mean age of the affected dogs was 10.4 years (range, 8-13 years). All neoplasms presented as soft lobular masses composed of predominantly round or polygonal neoplastic cells with granular eosinophilic and vacuolated cytoplasm resembling adipocytes. The cytoplasm contained large numbers of pleomorphic mitochondria with dense matrices and indistinct cristae. Immunohistochemical evaluation confirmed positive labeling of neoplastic cells from all cases with uncoupling protein 1 (UCP-1) consistent with brown fat differentiation. Interestingly, rare neoplastic cells also expressed myogenin and myoD, possibly suggesting a common progenitor cell for neoplastic brown adipose and skeletal muscle cells.
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Affiliation(s)
- M Ravi
- Alberta Agriculture and Rural Development, OS Longman Bldg, 6909 112 St, Edmonton, Alberta T6H 4P2, Canada.
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Poster Session Wednesday 5 December all day Display * Determinants of left ventricular performance. Eur Heart J Cardiovasc Imaging 2012. [DOI: 10.1093/ehjci/jes248] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Orfali M, Feldman L, Bhattacharjee V, Harkins P, Kadam S, Lo C, Ravi M, Shringarpure DT, Mardekian J, Cassino C, Coté T. Raising Orphans: How Clinical Development Programs of Drugs for Rare and Common Diseases Are Different. Clin Pharmacol Ther 2012; 92:262-4. [DOI: 10.1038/clpt.2012.87] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [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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Peek SF, McGuirk SM, Gaska J, Ravi M, Bell C, Pinkerton MA. Idiopathic hemorrhagic pericardial effusion as a precursor to epicardial lymphosarcoma in three cows. J Vet Intern Med 2012; 26:1069-72. [PMID: 22676351 DOI: 10.1111/j.1939-1676.2012.00952.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2012] [Revised: 03/09/2012] [Accepted: 04/24/2012] [Indexed: 11/29/2022] Open
Affiliation(s)
- S F Peek
- Department of Medical Sciences, School of Veterinary Medicine, University of Wisconsin, Madison, WI 53706, USA.
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Ravi M, Pavani Y, Bhavani S, Sharma AK, Narasimha Rao VVR. Investigations on Structural and Electrical Properties of KClO4Complexed PVP Polymer Electrolyte Films. INT J POLYM MATER PO 2012. [DOI: 10.1080/00914037.2011.584225] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [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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Pavani Y, Ravi M, Bhavani S, Sharma A, Narasimha Rao V. Characterization of poly(vinyl alcohol)/potassium chloride polymer electrolytes for electrochemical cell applications. POLYM ENG SCI 2012. [DOI: 10.1002/pen.23118] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [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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