36 results on '"S., Muthamil"'
Search Results
2. Synthesis of Hexamine (HMTA) derived carbon dots and their optical properties
- Author
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S. Muthamil Selvan, K. Vijai Anand, G. Vinitha, and K. Govindaraju
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General Medicine - Published
- 2023
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- View/download PDF
3. Biomass extract of green macroalga Halimeda opuntiaassisted ZnO nanoparticles: preparation, physico-chemical characterization, and antibacterial activity against Vibrio harveyi
- Author
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Anand, K. Vijai, Mahalakshmi, D., Selvan, S. Muthamil, Ravi, M., Kannan, M., Govindaraju, K., and Shalan, Ahmed Esmail
- Abstract
Graphical abstract:
- Published
- 2024
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- View/download PDF
4. Mitigation of Harmonics by Fuzzy logic controlled Series Compensator
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Kavitha, D., Renuga, P., Priya, S. Muthamil, and Sadaiappan, S.
- Published
- 2013
5. Movie Recommendation Based on Posters and Still Frames using Machine Learning
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Kaushik Kumar Gp, S. Muthamil Selvan, Maneesh Pudhota, Sridhar Gunnam, and Blue Eyes Intelligence Engineering & Sciences Publication(BEIESP)
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D7255049420/2020©BEIESP ,Environmental Engineering ,business.industry ,Computer science ,General Engineering ,k-means clustering ,2249-8958 ,Machine learning ,computer.software_genre ,Computer Science Applications ,Lasso regression ,Fully convoluted neural network, Lasso regression, K means, Soft-max ,Artificial intelligence ,business ,computer - Abstract
Movie recommendation system has become a key part in online movie services to gain and maintain the huge market. While within the preceding studies works Convolution neural network (CNN) concept is employed to spot the various movies with similar posters or stills to recommend the users. Using CNN, similar posters and stills are classified into group and any hard cash within the poster may place it out of the group. But the CNN method isn't fully connected and uses back propagation technique which could be a touch slow within the poster identification and more over just with posters the films cannot be of comparable one and should disappoint the user. Technologies like Fully Convoluted neural network (FCN) makes use of Convolution neural network concept by connecting all neural networks and adding filters and pooling layer in between each filter layer. Data Augmentation is an algorithm which helps in increasing accuracy for the predicting movies. LASSO regression is employed to get images of high multicollinearity. Soft-max layer is employed to work out the probability of the similarities in to poster to create it more appropriate for the user. K-means clustering is employed to classify the films still further to recommend thesimplest movie to the user.
- Published
- 2020
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6. Electric Gadgets Surveillance and Controlling Systems Based on Internet of Things IoT
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D. Sai Santosh Kumar, S. Muthamil Selvan, K. Vijay Sriram Charan, and E. Bharghav Reddy
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Environmental Engineering ,business.industry ,Computer science ,ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION ,General Engineering ,Internet of Things ,business ,Computer security ,computer.software_genre ,computer ,Computer Science Applications - Abstract
Over the last few a long time, brilliant infrastructure growths were noticed in safety-related troubles during the world. So, with multiplied call for for Security, Video-based Surveillance has grown to be an essential location for the research. An Intelligent Video Surveillance system essentially censored the performance, happenings, or converting data normally in terms of humans, cars or every other item from a distance by way of some electronic equipment (normally virtual digital camera). The scopes like prevention, detection, and intervention that have brought about the improvement of real and constant video surveillance structures can shrewd video processing abilities. In wide phrases, superior video-based surveillance could be defined as a shrewd video processing approach designed to help protect personnel by imparting reliable real-time alerts and to support green video evaluation for forensic investigations. This chapter offers the diverse requirements for designing a robust and reliable video surveillance machine. Also, it is mentioned the one-ofa-kind kinds of cameras required in one of a kind environmental conditions together with indoor and out of doors surveillance. Different modeling schemes are required for designing green surveillance machines under numerous illumination conditions.
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- 2020
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7. Data Security Framework Using Block Chain Technology
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R. Jaichandran, R. Shobana, S. Muthamil Selvan, Medagoni Rohan Sai, and Gunupati Lakshmi Sai Vikas Kumar Reddy
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- 2022
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8. Biomass extract of green macroalga Halimeda opuntia assisted ZnO nanoparticles: preparation, physico-chemical characterization, and antibacterial activity against Vibrio harveyi
- Author
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Anand, K. Vijai, primary, Mahalakshmi, D., additional, Selvan, S. Muthamil, additional, Ravi, M., additional, Kannan, M., additional, Govindaraju, K., additional, and Shalan, Ahmed Esmail, additional
- Published
- 2022
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9. State of the Art Review in Skin Lesion Image Processing Analysis
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S, Muthamil Selvan., primary and Dilip, Golda, additional
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- 2022
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10. Water Level Detection System in Overhead Tanks using Embedded Systems
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S Muthamil Selvan
- Subjects
Computer science ,business.industry ,Embedded system ,Overhead (computing) ,business ,Water level - Published
- 2019
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11. Hemophagocytic syndrome associated with Plasmodium falciparum infection
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P N Vinoth, K Abilash Thomas, S Muthamil Selvan, D Febe Renjitha Suman, and Julius Xavier Scott
- Subjects
Hemophagocytic syndrome ,Plasmodium falciparum ,pancytopenia ,Pathology ,RB1-214 ,Microbiology ,QR1-502 - Abstract
Hemophagocytic syndrome (HPS) has been associated with infections, hematological malignancies and autoimmune conditions. Malaria is rarely reported to cause HPS. We report a case of an 11-month-old infant with fever, hepatosplenomegaly, pancytopenia, high serum ferritin, hypertriglyceridemia, and bone marrow hemophagocytosis, consistent with hemophagocytic syndrome. Gametocytes of plasmodium falciparum were identified on bone marrow aspiration. Rapid recovery was observed after treatment with antimalarials.
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- 2011
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- View/download PDF
12. Electric Gadgets Surveillance and Controlling Systems Based on Internet of Thing
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D. Sai Santosh Kumar, E. Bharghav Reddy, K. Vijay Sriram Charan, S. Muthamil Selvan, and Blue Eyes Intelligence Engineering & Sciences Publication(BEIESP)
- Subjects
ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION ,D7012049420/2020©BEIESP ,Surveillance,IEEE802.11,WIFi,Electric gadget ,2249-8958 - Abstract
Over the last few a long time, brilliant infrastructure growths were noticed in safety-related troubles during the world. So, with multiplied call for for Security, Video-based Surveillance has grown to be an essential location for the research. An Intelligent Video Surveillance system essentially censored the performance, happenings, or converting data normally in terms of humans, cars or every other item from a distance by way of some electronic equipment (normally virtual digital camera). The scopes like prevention, detection, and intervention that have brought about the improvement of real and constant video surveillance structures can shrewd video processing abilities. In wide phrases, superior video-based surveillance could be defined as a shrewd video processing approach designed to help protect personnel by imparting reliable real-time alerts and to support green video evaluation for forensic investigations. This chapter offers the diverse requirements for designing a robust and reliable video surveillance machine. Also, it is mentioned the one-ofa-kind kinds of cameras required in one of a kind environmental conditions together with indoor and out of doors surveillance. Different modeling schemes are required for designing green surveillance machines under numerous illumination conditions.
- Published
- 2020
13. Water Level Detection System in Overhead Tanks using Embedded Systems
- Author
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Selvan, S Muthamil, primary
- Published
- 2019
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14. Toolkit for Web Development Based on Web Based Information System
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Siginamsetty Raviteja, Ogiboina Purna Sai Krishna, and S. Muthamil Selvan
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History ,Web development ,Computer science ,business.industry ,media_common.quotation_subject ,Plan (drawing) ,Computer Science Applications ,Education ,World Wide Web ,Convention ,Information system ,Web application ,Electronic data ,The Internet ,Quality (business) ,business ,media_common - Abstract
this paper intends to exhibit the social and authoritative parts of electronic data frameworks. Presently we are in the 21st century and two decades will be finished soon. A century ago has been considered as the ascending of Information and correspondence innovation. These days there is expanding advancement of online data frameworks for social and hierarchical divisions Electronic data frameworks in light of web innovations which shares distinctive kinds of Internet convention and assumes an essential part to gather, putting away, gathering and imparting information from various sources and spread data initially. The speed and productivity of electronic data framework which incorporates both neighborhood and worldwide systems, databases and diverse sorts of program for data preparing makes social and hierarchical life less demanding for individuals. The online applications keep up activities of administration. Such applications incorporates quality administration forms, life cycle of authoritative objective, actualizing and sharing creation plan This electronic innovation affects social connection, social conduct and different association issues.
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- 2019
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15. Gender Determination through Molecular Analysis of Pulp Tissue of Deciduous Teeth–A Study Using Polymerase Chain Reaction Technique.
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R., Manju, Shetty, Veena, Suman, Prachi, Rao, Shama, S., Muthamil, and M. S., Ravi
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POLYMERASE chain reaction ,TISSUE analysis ,Y chromosome ,X chromosome ,DECIDUOUS teeth - Abstract
Background: Accurate determination of gender from the skeletal remains has a significant role in the identification process. In conditions of extreme fragmentation, information from DNA plays a vital role in establishing the gender of the person and further contributes to personal identification. Method: Sixty sound and non-carious extracted deciduous teeth were grouped into three of 20 each. Group 1 was analyzed immediately after extraction. Group 2 and Group 3 were stored at room temperature for three months and Fifteen months respectively before subjecting them to PCR analysis. The X and Y chromosomes from each sample were amplified and compared with the actual gender of the person. Shapiro-Wilk test the independent sample t-test, paired t-test and the chi-square test were used to analyze the data obtained. Result: The mean DNA volume (mg/ml) obtained immediately after extraction was significantly more than that from the teeth stored at room temperature for 15 months. The PCR analysis did not show any significant difference between group 1 and group 3 (p=0.072). Statistically significant difference was observed, when the results of group 1 were compared with that of group 3. Conclusion: Gender could be conclusively determined from the samples analyzed immediately after extraction. The accuracy of gender determination decreased as the period of storage increased. [ABSTRACT FROM AUTHOR]
- Published
- 2020
16. Hemophagocytic syndrome associated with Plasmodium falciparum infection
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S Muthamil Selvan, K Abilash Thomas, D Febe Renjitha Suman, PN Vinoth, and Julius Xavier Scott
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Male ,Microbiology (medical) ,Plasmodium falciparum ,Hepatosplenomegaly ,lcsh:QR1-502 ,Lymphohistiocytosis, Hemophagocytic ,lcsh:Microbiology ,Pathology and Forensic Medicine ,pancytopenia ,Antimalarials ,Bone Marrow ,hemic and lymphatic diseases ,parasitic diseases ,medicine ,Gametocyte ,lcsh:Pathology ,Humans ,Malaria, Falciparum ,Microscopy ,biology ,business.industry ,Infant ,General Medicine ,medicine.disease ,biology.organism_classification ,Pancytopenia ,Virology ,Ferritin ,Treatment Outcome ,medicine.anatomical_structure ,Immunology ,biology.protein ,Bone marrow ,medicine.symptom ,Hemophagocytosis ,business ,Hemophagocytic syndrome ,Malaria ,lcsh:RB1-214 - Abstract
Hemophagocytic syndrome (HPS) has been associated with infections, hematological malignancies and autoimmune conditions. Malaria is rarely reported to cause HPS. We report a case of an 11-month-old infant with fever, hepatosplenomegaly, pancytopenia, high serum ferritin, hypertriglyceridemia, and bone marrow hemophagocytosis, consistent with hemophagocytic syndrome. Gametocytes of plasmodium falciparum were identified on bone marrow aspiration. Rapid recovery was observed after treatment with antimalarials.
- Published
- 2011
17. Optimal placement and location of distributed generators in distorted distribution system
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P. Renuga, D. Kavitha, and S. Muthamil Priya
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Distribution system ,Engineering ,Total harmonic distortion ,business.industry ,Genetic algorithm ,Electronic engineering ,Particle swarm optimization ,Multi-swarm optimization ,business ,Topology ,Multi-objective optimization ,Voltage ,Nonlinear programming - Abstract
In this paper, an approach using Hybrid Genetic Algorithm and Particle Swarm Optimization Search (HGAPSO) is proposed for placing Distributed Generators (DGs) in distorted distribution system. The objective is to reduce the real power loss and average voltage total harmonic distortion (THD V ) of the distorted distribution system. A detailed performance analysis is carried out on IEEE 18 bus system to express the effectiveness of the proposed method.
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- 2014
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18. Optimal placement and location of distributed generators in distorted distribution system
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Kavitha, D., primary, Renuga, P., additional, and Priya, S. Muthamil, additional
- Published
- 2014
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19. Idiopathic thrombocytopaenic purpura in a first-degree relative of a patient with multiple sclerosis
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V Anitha, Julius Xavier Scott, PN Vinoth, and S Muthamil Selvan
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medicine.medical_specialty ,Thrombocytopaenic purpura ,Rheumatology ,business.industry ,Multiple sclerosis ,medicine ,First-degree relatives ,business ,medicine.disease ,Dermatology - Published
- 2012
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20. Idiopathic thrombocytopaenic purpura in a first-degree relative of a patient with multiple sclerosis
- Author
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Selvan, S Muthamil, primary, Anitha, V, additional, Vinoth, PN, additional, and Scott, J Julius Xavier, additional
- Published
- 2012
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- View/download PDF
21. Hemophagocytic syndrome associated with Plasmodium falciparum infection.
- Author
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Vinoth, P. N., Thomas, K. Abilash, Selvan, S. Muthamil, Suman, D. Febe Renjitha, and Scott, Julius Xavier
- Published
- 2011
- Full Text
- View/download PDF
22. Toolkit for Web Development Based on Web Based Information System.
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Selvan, MR. S. Muthamil, Ogiboina Purna Sai Krishna, and Siginamsetty Raviteja
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- 2019
- Full Text
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23. Biomarkers of Cellular Senescence and Aging: Current State-of-the-Art, Challenges and Future Perspectives.
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Muthamil S, Kim HY, Jang HJ, Lyu JH, Shin UC, Go Y, Park SH, Lee HG, and Park JH
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- Humans, Animals, Telomere Shortening, Neoplasms metabolism, Neoplasms genetics, Neoplasms pathology, Senescence-Associated Secretory Phenotype, Cellular Senescence physiology, Biomarkers metabolism, Aging metabolism, Aging genetics
- Abstract
Population aging has increased the global prevalence of aging-related diseases, including cancer, sarcopenia, neurological disease, arthritis, and heart disease. Understanding aging, a fundamental biological process, has led to breakthroughs in several fields. Cellular senescence, evinced by flattened cell bodies, vacuole formation, and cytoplasmic granules, ubiquitously plays crucial roles in tissue remodeling, embryogenesis, and wound repair as well as in cancer therapy and aging. The lack of universal biomarkers for detecting and quantifying senescent cells, in vitro and in vivo, constitutes a major limitation. The applications and limitations of major senescence biomarkers, including senescence-associated β-galactosidase staining, telomere shortening, cell-cycle arrest, DNA methylation, and senescence-associated secreted phenotypes are discussed. Furthermore, explore senotherapeutic approaches for aging-associated diseases and cancer. In addition to the conventional biomarkers, this review highlighted the in vitro, in vivo, and disease models used for aging studies. Further, technologies from the current decade including multi-omics and computational methods used in the fields of senescence and aging are also discussed in this review. Understanding aging-associated biological processes by using cellular senescence biomarkers can enable therapeutic innovation and interventions to improve the quality of life of older adults., (© 2024 The Author(s). Advanced Biology published by Wiley‐VCH GmbH.)
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- 2024
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24. Novel insights into regulators and functional modulators of adipogenesis.
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Kim HY, Jang HJ, Muthamil S, Shin UC, Lyu JH, Kim SW, Go Y, Park SH, Lee HG, and Park JH
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- Humans, Animals, PPAR gamma metabolism, Transcription Factors metabolism, Gene Expression Regulation, Adipogenesis physiology, Adipocytes metabolism
- Abstract
Adipogenesis is a process that differentiates new adipocytes from precursor cells and is tightly regulated by several factors, including many transcription factors and various post-translational modifications. Recently, new roles of adipogenesis have been suggested in various diseases. However, the molecular mechanisms and functional modulation of these adipogenic genes remain poorly understood. This review summarizes the regulatory factors and modulators of adipogenesis and discusses future research directions to identify novel mechanisms regulating adipogenesis and the effects of adipogenic regulators in pathological conditions. The master adipogenic transcriptional factors PPARγ and C/EBPα were identified along with other crucial regulatory factors such as SREBP, Kroxs, STAT5, Wnt, FOXO1, SWI/SNF, KLFs, and PARPs. These transcriptional factors regulate adipogenesis through specific mechanisms, depending on the adipogenic stage. However, further studies related to the in vivo role of newly discovered adipogenic regulators and their function in various diseases are needed to develop new potent therapeutic strategies for metabolic diseases and cancer., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 The Authors. Published by Elsevier Masson SAS.. All rights reserved.)
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- 2024
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25. Gonadal efficacy of Thymus quinquecostatus Celakovski: Regulation of testosterone levels in aging mouse models.
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Kim HY, Kwon HS, Lim JO, Jang HJ, Muthamil S, Shin UC, Lyu JH, Park YJ, Nam HH, Lee NY, Oh HJ, Yun SI, Jin JS, and Park JH
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- Animals, Male, Mice, Leydig Cells drug effects, Leydig Cells metabolism, Cell Survival drug effects, Cell Line, Hypogonadism drug therapy, Disease Models, Animal, Testosterone blood, Aging drug effects, Aging metabolism, Plant Extracts pharmacology, Testis drug effects, Testis metabolism, Thymus Plant chemistry
- Abstract
Late-onset hypogonadism (LOH) is an age-related disease in men characterized by decreased testosterone levels with symptoms such as decreased libido, erectile dysfunction, and depression. Thymus quinquecostatus Celakovski (TQC) is a plant used as a volatile oil in traditional medicine, and its bioactive compounds have anti-inflammatory potential. Based on this knowledge, the present study aimed to investigate the effects of TQC extract (TE) on LOH in TM3 Leydig cells and in an in vivo aging mouse model. The aqueous extract of T. quinquecostatus Celakovski (12.5, 25, and 50 µg/mL concentrations) was used to measure parameters such as cell viability, testosterone level, body weight, and gene expression, via in vivo studies. Interestingly, TE increased testosterone levels in TM3 cells in a dose-dependent manner without affecting cell viability. Furthermore, TE significantly increased the expression of genes involved in the cytochrome P450 family (Cyp11a1, Cyp17a1, Cyp19a1, and Srd5a2), which regulate testosterone biosynthesis. In aging mouse models, TE increased testosterone levels without affecting body weight and testicular tissue weight tissue of an aging animal group. In addition, the high-dose TE-treated group (50 mg/kg) showed significantly increased expression of the cytochrome p450 enzymes, similar to the in vitro results. Furthermore, HPLC-MS analysis confirmed the presence of caffeic acid and rosmarinic acid as bioactive compounds in TE. Thus, the results obtained in the present study confirmed that TQC and its bioactive compounds can be used for LOH treatment to enhance testosterone production., Competing Interests: Declaration of Competing Interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Jun Hong Park declare that this study was conducted in the absence of any commercial or financial relationships that could be construed as potential conflicts of interest., (Copyright © 2024 The Authors. Published by Elsevier Masson SAS.. All rights reserved.)
- Published
- 2024
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26. Bee ( Apis mellifera L. 1758) wax restores adipogenesis and lipid accumulation of 3T3-L1 cells in cancer-associated cachexia condition.
- Author
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Jang HJ, Kim HY, Lyu JH, Muthamil S, Shin UC, Kim HS, Jeong J, Chang S, Lee YK, and Park JH
- Abstract
Cachexia is associated with various diseases, such as heart disease, infectious disease, and cancer. In particular, cancer-associated cachexia (CAC) accounts for more than 20% of mortality in cancer patients worldwide. Adipose tissue in CAC is characterized by adipocyte atrophy, mainly due to excessively increased lipolysis and impairment of adipogenesis. CAC is well known for the loss of skeletal muscle mass and/or fat mass. CAC induces severe metabolic alterations, including protein, lipid, and carbohydrate metabolism. The objectives of this study were to evaluate the effects of bee wax ( Apis mellifera L. 1758) (BW) extract on adipogenesis, lipolysis, and mitochondrial oxygen consumption through white adipocytes, 3T3-L1. To achieve this study, cancer-associated cachexia condition was established by incubation of 3T3-L1 with colon cancer cell line CT26 cultured media. BW extract recovered the reduced adipogenesis under cachectic conditions in CT26 media. Treatment of BW showed increasing lipid accumulation as well as adipogenic gene expression and its target gene during adipogenesis. The administration of BW to adipocytes could decrease lipolysis. Also, BW could significantly downregulated the mitochondrial fatty acid oxidation-related genes, oxygen consumption rate, and extracellular acidification rate. Our results suggest that BW could improve metabolic disorders such as CAC through the activation of adipogenesis and inhibition of lipolysis in adipocytes, although we need further validation in vivo CAC model to check the effects of BW extract. Therefore, BW extract supplements could be useful as an alternative medicine to reverse energy imbalances., Competing Interests: All authors declare that they have no conflict of interest., (© 2024 The Authors. Food Science & Nutrition published by Wiley Periodicals LLC.)
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- 2024
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27. Unlocking Prognostic Genes and Multi-Targeted Therapeutic Bioactives from Herbal Medicines to Combat Cancer-Associated Cachexia: A Transcriptomics and Network Pharmacology Approach.
- Author
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Muthamil S, Muthuramalingam P, Kim HY, Jang HJ, Lyu JH, Shin UC, Go Y, Park SH, Lee HG, Shin H, and Park JH
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- Humans, Prognosis, Cachexia etiology, Cachexia genetics, Molecular Docking Simulation, Network Pharmacology, Gene Expression Profiling, Plant Extracts, Plants, Medicinal, Neoplasms complications, Neoplasms drug therapy, Neoplasms genetics
- Abstract
Cachexia is a devastating fat tissue and muscle wasting syndrome associated with every major chronic illness, including cancer, chronic obstructive pulmonary disease, kidney disease, AIDS, and heart failure. Despite two decades of intense research, cachexia remains under-recognized by oncologists. While numerous drug candidates have been proposed for cachexia treatment, none have achieved clinical success. Only a few drugs are approved by the FDA for cachexia therapy, but a very low success rate is observed among patients. Currently, the identification of drugs from herbal medicines is a frontier research area for many diseases. In this milieu, network pharmacology, transcriptomics, cheminformatics, and molecular docking approaches were used to identify potential bioactive compounds from herbal medicines for the treatment of cancer-related cachexia. The network pharmacology approach is used to select the 32 unique genes from 238 genes involved in cachexia-related pathways, which are targeted by 34 phytocompounds identified from 12 different herbal medicines used for the treatment of muscle wasting in many countries. Gene expression profiling and functional enrichment analysis are applied to decipher the role of unique genes in cancer-associated cachexia pathways. In addition, the pharmacological properties and molecular interactions of the phytocompounds were analyzed to find the target compounds for cachexia therapy. Altogether, combined omics and network pharmacology approaches were used in the current study to untangle the complex prognostic genes involved in cachexia and phytocompounds with anti-cachectic efficacy. However, further functional and experimental validations are required to confirm the efficacy of these phytocompounds as commercial drug candidates for cancer-associated cachexia.
- Published
- 2023
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28. Understanding the relationship between cancer associated cachexia and hypoxia-inducible factor-1.
- Author
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Muthamil S, Kim HY, Jang HJ, Lyu JH, Shin UC, Go Y, Park SH, Lee HG, and Park JH
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- Humans, Hypoxia-Inducible Factor 1 metabolism, Adipose Tissue metabolism, Hypoxia metabolism, Cachexia pathology, Neoplasms complications, Neoplasms metabolism
- Abstract
Cancer-associated cachexia (CAC) is a multifactorial disorder characterized by an unrestricted loss of body weight as a result of muscle and adipose tissue atrophy. Cachexia is influenced by several factors, including decreased metabolic activity and food intake, an imbalance between energy uptake and expenditure, excessive catabolism, and inflammation. Cachexia is highly associated with all types of cancers responsible for more than half of cancer-related mortalities worldwide. In healthy individuals, adipose tissue significantly regulates energy balance and glucose homeostasis. However, in metastatic cancer patients, CAC occurs mainly because of an imbalance between muscle protein synthesis and degradation which are organized by certain extracellular ligands and associated signaling pathways. Under hypoxic conditions, hypoxia-inducible factor-1 (HIF-1α) accumulated and translocated to the nucleus and activate numerous genes involved in cell survival, invasion, angiogenesis, metastasis, metabolic reprogramming, and cancer stemness. On the other hand, the ubiquitination proteasome pathway is inhibited during low O2 levels which promote muscle wasting in cancer patients. Therefore, understanding the mechanism of the HIF-1 pathway and its metabolic adaptation to biomolecules is important for developing a novel therapeutic method for cancer and cachexia therapy. Even though many HIF inhibitors are already in a clinical trial, their mechanism of action remains unknown. With this background, this review summarizes the basic concepts of cachexia, the role of inflammatory cytokines, pathways connected with cachexia with special reference to the HIF-1 pathway and its regulation, metabolic changes, and inhibitors of HIFs., Competing Interests: Declaration of Competing Interest The authors declare no conflict of interest., (Copyright © 2023 The Authors. Published by Elsevier Masson SAS.. All rights reserved.)
- Published
- 2023
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29. Molecular Insights into Abiotic Stresses in Mango.
- Author
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Muthuramalingam P, Muthamil S, Shilpha J, Venkatramanan V, Priya A, Kim J, Shin Y, Chen JT, Baskar V, Park K, and Shin H
- Abstract
Mango ( Mangifera indica L.) is one of the most economically important fruit crops across the world, mainly in the tropics and subtropics of Asia, Africa, and Central and South America. Abiotic stresses are the prominent hindrance that can adversely affect the growth, development, and significant yield loss of mango trees. Understanding the molecular physiological mechanisms underlying abiotic stress responses in mango is highly intricate. Therefore, to gain insights into the molecular basis and to alleviate the abiotic stress responses to enhance the yield in the mere future, the use of high-throughput frontier approaches should be tied along with the baseline investigations. Taking these gaps into account, this comprehensive review mainly speculates to provide detailed mechanisms and impacts on physiological and biochemical alterations in mango under abiotic stress responses. In addition, the review emphasizes the promising omics approaches in unraveling the candidate genes and transcription factors (TFs) responsible for abiotic stresses. Furthermore, this review also summarizes the role of different types of biostimulants in improving the abiotic stress responses in mango. These studies can be undertaken to recognize the roadblocks and avenues for enhancing abiotic stress tolerance in mango cultivars. Potential investigations pointed out the implementation of powerful and essential tools to uncover novel insights and approaches to integrate the existing literature and advancements to decipher the abiotic stress mechanisms in mango. Furthermore, this review serves as a notable pioneer for researchers working on mango stress physiology using integrative approaches.
- Published
- 2023
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30. Global proteomic analysis deciphers the mechanism of action of plant derived oleic acid against Candida albicans virulence and biofilm formation.
- Author
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Muthamil S, Prasath KG, Priya A, Precilla P, and Pandian SK
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- Candida albicans genetics, Drug Resistance, Fungal genetics, Fungal Proteins analysis, Fungal Proteins genetics, Humans, Microbial Sensitivity Tests, Mucous Membrane microbiology, Murraya metabolism, Oxidative Stress drug effects, Proteomics, Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization, Virulence drug effects, Antifungal Agents pharmacology, Biofilms drug effects, Candida albicans drug effects, Candidiasis drug therapy, Oleic Acid pharmacology
- Abstract
Candida albicans is a commensal fungus in humans, mostly found on the mucosal surfaces of the mouth, gut, vagina and skin. Incidence of ever increasing invasive candidiasis in immunocompromised patients, alarming occurrence of antifungal resistance and insufficient diagnostic methods demand more focused research into C. albicans pathogenicity. Consequently, in the present study, oleic acid from Murraya koenigii was shown to have the efficacy to inhibit biofilm formation and virulence of Candida spp. Results of in vitro virulence assays and gene expression analysis, impelled to study the protein targets which are involved in the molecular pathways of C. albicans pathogenicity. Proteomic studies of differentially expressed proteins reveals that oleic acid induces oxidative stress responses and mainly targets the proteins involved in glucose metabolism, ergosterol biosynthesis, lipase production, iron homeostasis and amino acid biosynthesis. The current study emphasizes anti-virulent potential of oleic acid which can be used as a therapeutic agent to treat Candida infections.
- Published
- 2020
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31. Green synthesis of copper oxide nanoparticles and mosquito larvicidal activity against dengue, zika and chikungunya causing vector Aedes aegypti .
- Author
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Muthamil Selvan S, Vijai Anand K, Govindaraju K, Tamilselvan S, Kumar VG, Subramanian KS, Kannan M, and Raja K
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- Animals, Asteraceae chemistry, Larva drug effects, Plant Extracts chemistry, Plant Extracts metabolism, RNA Virus Infections prevention & control, RNA Virus Infections transmission, Spectrum Analysis, Aedes drug effects, Copper chemistry, Copper metabolism, Copper pharmacology, Green Chemistry Technology methods, Insecticides chemical synthesis, Insecticides chemistry, Insecticides metabolism, Insecticides pharmacology, Metal Nanoparticles chemistry, Mosquito Vectors drug effects
- Abstract
In the present study, high purity copper oxide nanoparticles (NPs) were synthesised using Tridax procumbens leaf extract. Green syntheses of nano-mosquitocides rely on plant compounds as reducing and stabilising agents. Copper oxide NPs were characterised using X-ray diffraction (XRD) analysis, Fourier transform infrared (FT-IR), Field-emission scanning electron microscopy with energy dispersive spectroscopy, Ultraviolet-visible spectrophotometry and fluorescence spectroscopy. XRD studies of the NPs indicate crystalline nature which was perfectly matching with a monoclinic structure of bulk CuO with an average crystallite size of 16 nm. Formation of copper oxide NPs was confirmed by FT-IR studies and photoluminescence spectra with emission peaks at 331, 411 and 433 nm were assigned to a near-band-edge emission band of CuO in the UV, violet and blue region. Gas chromatography-mass spectrometry studies inferred the phytochemical constituents of the leaf extract. Larvicidal activity of synthesised NPs using T. procumbens leaf extract was tested against Aedes aegypti species (dengue, chikungunya, zika and yellow fever transmit vector).
- Published
- 2018
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32. Synergistic Effect of Quinic Acid Derived From Syzygium cumini and Undecanoic Acid Against Candida spp. Biofilm and Virulence.
- Author
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Muthamil S, Balasubramaniam B, Balamurugan K, and Pandian SK
- Abstract
In recent decades, fungal infections have incredibly increased with Candida genus as the major cause of morbidity and mortality in hospitalized and immunocompromised patients. Most of the Candida species are proficient in biofilm formation on implanted medical devices as well as human tissues. Biofilm related Candida infections are very difficult to treat using common antifungal agents owing to their increased drug resistance. To address these issues, the present study investigated the antibiofilm and antivirulent properties of Syzygium cumini derived quinic acid in combination with known antifungal compound undecanoic acid. Initially, antibiofilm potential of S. cumini leaf extract was assessed and the active principles were identified through gas chromatography and mass spectrometry analysis. Among the compounds identified, quinic acid was one of the major compounds. The interaction between quinic acid and undecanoic acid was found to be synergistic in the Fractional inhibitory concentration index (≤0.5). Results of in vitro assays and gene expression analysis suggested that the synergistic combinations of quinic acid and undecanoic acid significantly inhibited virulence traits of Candida spp. such as the biofilm formation, yeast-to-hyphal transition, extracellular polymeric substances production, filamentation, secreted hydrolases production and ergosterol biosynthesis. In addition, result of in vivo studies using Caenorhabditis elegans demonstrated the non-toxic nature of QA-UDA combination and antivirulence effect against Candida spp. For the first time, synergistic antivirulence ability of quinic acid and undecanoic acid was explored against Candida spp. Thus, results obtained from the present study suggest that combination of phytochemicals might be used an alternate therapeutic strategy for the prevention and treatment of biofilm associated Candida infection.
- Published
- 2018
- Full Text
- View/download PDF
33. Green synthesized silver nanoparticles demonstrating enhanced in vitro and in vivo antibiofilm activity against Candida spp.
- Author
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Muthamil S, Devi VA, Balasubramaniam B, Balamurugan K, and Pandian SK
- Subjects
- Antifungal Agents chemistry, Aspartic Acid Endopeptidases biosynthesis, Biofilms growth & development, Fungal Polysaccharides biosynthesis, Hyphae growth & development, Lamiaceae, Metal Nanoparticles ultrastructure, Microbial Sensitivity Tests, Microscopy, Electron, Sapindaceae, Silver pharmacology, Spectroscopy, Fourier Transform Infrared, Virulence Factors biosynthesis, Antifungal Agents pharmacology, Biofilms drug effects, Candida drug effects, Green Chemistry Technology, Metal Nanoparticles chemistry, Plant Extracts chemistry, Silver chemistry
- Abstract
Candida species are opportunistic fungal pathogens, which are known for their biofilm associated infections on implanted medical devices in clinical settings. Broad spectrum usage of azole groups and other antifungal agents leads to the occurrence of drug resistance among Candida species. Most of the antifungal agents have failed to treat the biofilm mediated Candida infections. In the present study, silver nanoparticles (AgNPs) were synthesized using Dodonaea viscosa and Hyptis suoveolens methanolic leaf extracts and characterized by ultraviolet-visible absorption spectroscopy, X-ray diffraction analysis, Fourier transform infrared spectroscopy and Scanning electron microscopy, Dynamic light scattering, and Zeta potential analysis. The main goal of this study was to assess the AgNPs for their antibiofilm efficacy against Candida spp. through microscopic analysis and in vitro virulence assays. The results revealed that AgNPs strongly inhibited more than 80% biofilm formed by Candida spp. Furthermore, the AgNPs also reduced the yeast-to-hyphal transition, exopolysaccharide biosynthesis, secreted aspartyl proteinase production which are the major virulence factors of Candida species. This study reveals that biosynthesized AgNPs can be considered for the treatment of biofilm related Candida infections., (© 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.)
- Published
- 2018
- Full Text
- View/download PDF
34. Usnic acid inhibits biofilm formation and virulent morphological traits of Candida albicans.
- Author
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Nithyanand P, Beema Shafreen RM, Muthamil S, and Karutha Pandian S
- Subjects
- Hyphae drug effects, Lichens metabolism, Microscopy, Confocal, Spectroscopy, Fourier Transform Infrared, Virulence drug effects, Antifungal Agents pharmacology, Benzofurans pharmacology, Biofilms drug effects, Candida albicans drug effects, Candida albicans pathogenicity, Candida albicans physiology
- Abstract
Biofilm formation and the yeast to hyphal switch are considered to be important virulence factors of Candida albicans. The present study reports about the potential of usnic acid, a lichen secondary metabolite inhibiting these virulent factors. Usnic acid, at its biofilm inhibitory concentration (BIC) largely reduced the viability of the metabolically active cells in matured C. albicans biofilms, exhibited significant biofilm inhibition (65%) and prevented the property of adhesion. Light microscopic images revealed that usnic acid effectively inhibited the yeast to hyphal switch and confocal microscopy showed that usnic acid greatly reduced the thickness of matured biofilms. Furthermore, usnic acid was able to reduce various sugars present in the exopolysaccharide layer (EPS) which was also confirmed by FT-IR analysis. Taken together, the present study showcases usnic acid as a potent anti-virulent compound against C. albicans and opens up a new avenue for bioprospecting lichen secondary metabolites as anti-virulent compounds., (Copyright © 2015 Elsevier GmbH. All rights reserved.)
- Published
- 2015
- Full Text
- View/download PDF
35. Usnic acid, a lichen secondary metabolite inhibits Group A Streptococcus biofilms.
- Author
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Nithyanand P, Beema Shafreen RM, Muthamil S, and Karutha Pandian S
- Subjects
- Anti-Bacterial Agents isolation & purification, Benzofurans isolation & purification, Biomass, Cytosol chemistry, Fatty Acids analysis, Humans, Lichens metabolism, Microscopy, Confocal, Pharyngitis microbiology, Secondary Metabolism, Spectroscopy, Fourier Transform Infrared, Streptococcal Infections microbiology, Streptococcus pyogenes chemistry, Streptococcus pyogenes isolation & purification, Anti-Bacterial Agents pharmacology, Benzofurans pharmacology, Biofilms drug effects, Lichens chemistry, Streptococcus pyogenes drug effects, Streptococcus pyogenes physiology
- Abstract
Group A Streptococci (GAS) are involved in a number of life threatening diseases and biofilm formation by these pathogens are considered as an important virulence determinant as it mediates antibiotic resistance among them. In the present study, we have explored the ability of (+)-usnic acid, a lichen secondary metabolite, as an antibiofilm agent against four serotypes of Streptococcus pyogenes causing pharyngitis. Usnic acid inhibited the biofilms of M serotypes M56, st38, M89 efficiently and the biofilm of M74 to a lesser extent. Confocal imaging of the treated samples showed that usnic acid reduced the biomass of the biofilms when compared to that of the control. Fourier Transfer Infrared (FT-IR) spectroscopy indicated that usnic acid reduced the cellular components (proteins and fatty acids) of the biofilms. Interestingly, the FT-IR spectrum further revealed that usnic acid probably acted upon the fatty acids of the biofilms as evident from the disappearance of a peak at 2,455-2,100 cm(-1) when compared to the control only in serotypes M56, st38 and M89 but not in M74. The present study shows, for the first time, that usnic acid can act as an effective antibiofilm agent against GAS.
- Published
- 2015
- Full Text
- View/download PDF
36. Inhibition of Candida albicans virulence factors by novel levofloxacin derivatives.
- Author
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Shafreen RM, Muthamil S, and Pandian SK
- Subjects
- Biofilms drug effects, Candida albicans genetics, Candida albicans physiology, Fungal Proteins metabolism, Levofloxacin chemistry, Virulence Factors metabolism, Antifungal Agents pharmacology, Candida albicans drug effects, Fungal Proteins genetics, Gene Expression Regulation, Fungal drug effects, Levofloxacin pharmacology, Virulence Factors genetics
- Abstract
Candida albicans is an important opportunistic fungal pathogen, responsible for biofilm associated infections in immunocompromised patients. The aim of the present study was to investigate the antibiofilm properties of novel levofloxacin derivatives on C. albicans biofilms. The levofloxacin derivatives at their Biofilm Inhibitory Concentrations (BIC) were able to inhibit the biofilms of C. albicans, the yeast-to-hyphal transition and were also able to disrupt their mature biofilms. Furthermore, Real-time PCR analysis showed that the expression of ergosterol biosynthesis pathway gene (ERG11) and the efflux pump-encoding genes (CDR1 and MDR1) was decreased upon treatment with the levofloxacin derivatives. The total ergosterol content quantified using UV spectrophotomer showed decrease in ergosterol in the presence of levofloxacin derivatives. Overall, levofloxacin derivatives (6a, 6c and 7d) are capable of inhibiting C. albicans virulence factors. Therefore, these compounds with potential therapeutic implications can be used as new strategy to treat biofilm-related candidal infections.
- Published
- 2014
- Full Text
- View/download PDF
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