13 results on '"Kannan KP"'
Search Results
2. Anticandidal effect of cinnamic acid characterized from Cinnamomum cassia bark against the fluconazole resistant strains of Candida.
- Author
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Kannan KP and As SG
- Abstract
Candida spp., causes invasive fungal infections, especially in immune-compromised patients and the propensity of antifungal resistance against azole-based drugs need to be addressed. This study is thus aimed to characterize the anticandidal effect of the cinnamic acid extracted from the barks of Cinnamomum cassia. Five species of Fluconazole-resistant Candida sp. were retrieved from the department repertoire. The extraction of CA was performed by three different methods followed by silica gel column chromatography. Eluant was subjected to FTIR and XRD analysis for confirmation. The anticandidal activity of the CA was checked by the agar disc diffusion method and the MIC and MFC were determined. The anti-biofilm effect of CA was assessed using the CLSM technique followed by the biocompatibility check using MTT assay in normal HGF cell lines. CA was best extracted with the hot maceration method using ethanol with a maximum yield of 6.73 mg. Purification by column chromatography was achieved using benzene, acetic acid, and water (6:7:3) mobile phase. CA was confirmed by FTIR with absorption peaks and by XDR based on strong intensity. CA was found to possess promising anticandidal activity at 8 µg/mL with MIC and MFC values determined as 0.8 µg/mL and 0.08 µg/mL respectively. Antibiofilm activity by CLSM analysis revealed biofilm inhibition and was biocompatible at 8.5 µg/ml concentrations in HGF cell lines until 24 h. The study findings conclude that CA is the best alternative to treat candidal infection warranting further experimental preclinical studies., (© 2024. The Author(s) under exclusive licence to Sociedade Brasileira de Microbiologia.)
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- 2024
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3. Recent updates and feasibility of nanodrugs in the prevention and eradication of dental biofilm and its associated pathogens-A review.
- Author
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Kannan KP, Gunasekaran V, Sreenivasan P, and Sathishkumar P
- Subjects
- Humans, Metal Nanoparticles therapeutic use, Anti-Bacterial Agents pharmacology, Anti-Bacterial Agents therapeutic use, Nanoparticles, Biofilms drug effects
- Abstract
Objectives: Dental biofilm is one of the most prevalent diseases in humans, which is mediated by multiple microorganisms. Globally, half of the human population suffers from dental biofilm and its associated diseases. In recent trends, nano-formulated drugs are highly attractive in the treatment of dental biofilms. However, the impact of different types of nanodrugs on the dental biofilm and its associated pathogens have not been published till date. Thus, this review focuses on the recent updates, feasibility, mechanisms, limitations, and regulations of nanodrugs applications in the prevention and eradication of dental biofilm., Study Selection, Data and Sources: A systematic search was conducted in PubMed/Google Scholar/Scopus over the past five years covering the major keywords "nanodrugs, metallic nanoparticles, metal oxide nanoparticles, natural polymers, synthetic polymers, biomaterials, dental biofilm, antibiofilm mechanism, dental pathogens", are reviewed in this study. Nearly, 100 scientific articles are selected in this relevant topic published between 2019 and 2023. Data from the selected studies dealing with nanodrugs used for biofilm treatment was qualitatively analyzed., Conclusions: The nanodrugs such as silver nanoparticles, gold nanoparticles, selenium nanoparticles, zinc oxide nanoparticles, copper oxide nanoparticles, titanium oxide nanoparticles, hydroxyapatite nanoparticles and these inorganic nanoparticles incorporated polymer-based nanocomposites, organic/inorganic nanoparticles mediated antimicrobial photodynamic therapy exhibits an excellent antibacterial and antibiofilm activity towards dental pathogens. Finally, this review highlights that bioinspired nanodrugs will be very useful to control the dental biofilm and its associated diseases., Clinical Significance: Microbial influence on the oral environment is unavoidable; therefore, curing such dental biofilms and pathogens is essential for the impactful reflection of applying biocompatible treatments. In this direction, the current review explains the demand for the nanodrug in inhibiting biofilms for the effective exploration of employing treatments., 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. This manuscript has not been published and is not under consideration for publication elsewhere. This manuscript is approved by all authors and we have no conflicts of interest to disclose., (Copyright © 2024 Elsevier Ltd. All rights reserved.)
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- 2024
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4. Exploring the ROS reduction strategies in chronic lupus management.
- Author
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Kannan KP and Girija A S S
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- Humans, Reactive Oxygen Species, Lupus Erythematosus, Systemic therapy
- Abstract
Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
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- 2024
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5. India's Elusive Quest for Inclusive Development: An Employment Perspective.
- Author
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Kannan KP
- Abstract
This paper is an attempt to assess India's performance in generating the required quantity and quality of employment for its growing population since independence in 1947. But the exercise is set in a longer period that covers India's population growth since the turn of the twentieth century (1901) in relation to its ability to generate employment. The half-a-century preceding independence, despite a slow population growth, was a disaster in generating employment and any signs of structural change. Detailed analysis of the issue since independence shows that there was indeed a demographic burden more than the world average as well as its comparator Asian countries such as China and Indonesia. While employment generation with reference to growth-employment elasticity-was quite impressive during the first four decades of independence, it almost collapsed ever since the adoption of neoliberal economic reforms in 1991, thus entering a phase of 'jobless growth', a phenomenon that is shared by China in a more vigorous form. This has led to what may be called an exclusion of working age people from not just employment but from labour force indicating the emergence of 'discouraged workers' in a larger set that we called underutilized labour. But what about those who are included in the workforce? Does it ensure an escape from poverty for those at the bottom? Our estimates show that the pace of reduction in the incidence of poverty is so slow that a significant share of households is still below the international definition of extreme poverty. We attribute this to the quality of employment characterized by a high incidence of informal sector employment as well as low wages measured by the share of workers not receiving a recommended subsistence wage. The absence of any kind of social security to an overwhelming share of workers adds to this situation of absolute poverty. Finally we examine the question of poverty from the point of manifold inequalities by dividing the households in the economy in terms of their employment, educational, rural-urban, and social group statuses for estimating predicted probability of being poor. The results bring into sharp focus the huge variation in predicted probability that shows households with low education, disadvantaged social group status, casual nature of employment, and living in rural areas at the bottom end of the scale. These results bring out the imperative for creating more employment with better quality., (© The Author(s), under exclusive licence to Indian Society of Labour Economics 2022, Springer Nature or its licensor holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.)
- Published
- 2022
- Full Text
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6. Revisiting Kerala's Gulf Connection: Half a Century of Emigration, Remittances and Their Macroeconomic Impact, 1972-2020.
- Author
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Kannan KP and Hari KS
- Abstract
In the literature on development studies, the state of Kerala in India is known for its high human and social development despite its low-income status. However, there has been a turnaround in its growth performance and has now come to occupy a high rank in terms of per capita income among Indian States. This has been largely through a high growth performance facilitated by significant remittances from abroad. However, there have not been consistent time-series data on annual remittances. This paper is an attempt to fulfil this gap by estimating foreign remittances to Kerala for a period of 47 years that is close to half a century. Using these data, the paper has presented a Modified State Income for Kerala and calculated its impact on consumption and savings. The significance of the sizeable emigration to the labour market situation has also been highlighted. Given the fact that remittances come as household income confined to a small segment of the total households, the impact of annual remittances on income and consumption inequality has also been highlighted. The results show an increasing trend in inequality. Despite a high growth performance aided by remittances, Kerala has not been able to address its longstanding problem of educated unemployment, especially for its women. In this context, the state's inability to take advantage of the enhanced per capita income to maintain its tax-income ratio, let alone enhance it, assumes great significance as an area of concern., (© Indian Society of Labour Economics 2020.)
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- 2020
- Full Text
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7. Social Security in the Lockdown: A Time to Revisit the NCEUS Recommendations.
- Author
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Kannan KP
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- 2020
- Full Text
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8. Isolation and identification of gold nanoparticles synthesizing fungi from Indian Kolar Gold Field mine soil.
- Author
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Lakshmi VJ and Kannan KP
- Subjects
- Aspergillus genetics, Aspergillus isolation & purification, Aspergillus metabolism, Base Sequence, DNA, Fungal genetics, DNA, Fungal metabolism, Fungal Proteins genetics, Fungal Proteins metabolism, Gold metabolism, India, Metal Nanoparticles analysis, Mining, Phylogeny, RNA, Ribosomal, 16S genetics, RNA, Ribosomal, 16S metabolism, Tubulin genetics, Tubulin metabolism, Aspergillus classification, Soil Microbiology
- Abstract
An indigenous fungal strain was isolated from Indian Kolar Gold Field mine soil. The isolate was heterothallic, branched septate, deeply floccose, fast-growing, dull green with white background conidial columnar mycelium from Aspergillus section Fumigati. Diverse metabolic patterns of the isolate exhibit high metal, thermal resistance which grews well from 28 ± 1 degrees C to 37 degrees C and pH concentration was significant on the growth of isolate. Phylogenetic analysis of 16srRNA β-Tubulin gene sequence established relationship among isolate and other taxa. Molecular identification and morphological features of fungal isolate were consistent with those of Neosartorya udagawae. Heterothallic N. udagawae FJ830683 strain was closely related to homothallic N. aureola EF661890. Fungal isolate extract synthesized narrow sized stable Gold nanoparticles (AuNPs).
- Published
- 2016
9. Complete genome sequence of the extremely halophilic Halanaerobium praevalens type strain (GSL).
- Author
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Ivanova N, Sikorski J, Chertkov O, Nolan M, Lucas S, Hammon N, Deshpande S, Cheng JF, Tapia R, Han C, Goodwin L, Pitluck S, Huntemann M, Liolios K, Pagani I, Mavromatis K, Ovchinikova G, Pati A, Chen A, Palaniappan K, Land M, Hauser L, Brambilla EM, Kannan KP, Rohde M, Tindall BJ, Göker M, Detter JC, Woyke T, Bristow J, Eisen JA, Markowitz V, Hugenholtz P, Kyrpides NC, Klenk HP, and Lapidus A
- Abstract
Halanaerobium praevalens Zeikus et al. 1984 is the type species of the genus Halanaerobium, which in turn is the type genus of the family Halanaerobiaceae. The species is of interest because it is able to reduce a variety of nitro-substituted aromatic compounds at a high rate, and because of its ability to degrade organic pollutants. The strain is also of interest because it functions as a hydrolytic bacterium, fermenting complex organic matter and producing intermediary metabolites for other trophic groups such as sulfate-reducing and methanogenic bacteria. It is further reported as being involved in carbon removal in the Great Salt Lake, its source of isolation. This is the first completed genome sequence of a representative of the genus Halanaerobium and the second genome sequence from a type strain of the family Halanaerobiaceae. The 2,309,262 bp long genome with its 2,110 protein-coding and 70 RNA genes is a part of the Genomic Encyclopedia of Bacteria and Archaea project.
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- 2011
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10. Complete genome sequence of Cellulophaga lytica type strain (LIM-21).
- Author
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Pati A, Abt B, Teshima H, Nolan M, Lapidus A, Lucas S, Hammon N, Deshpande S, Cheng JF, Tapia R, Han C, Goodwin L, Pitluck S, Liolios K, Pagani I, Mavromatis K, Ovchinikova G, Chen A, Palaniappan K, Land M, Hauser L, Jeffries CD, Detter JC, Brambilla EM, Kannan KP, Rohde M, Spring S, Göker M, Woyke T, Bristow J, Eisen JA, Markowitz V, Hugenholtz P, Kyrpides NC, Klenk HP, and Ivanova N
- Abstract
Cellulophaga lytica (Lewin 1969) Johansen et al. 1999 is the type species of the genus Cellulophaga, which belongs to the family Flavobacteriaceae within the phylum 'Bacteroidetes' and was isolated from marine beach mud in Limon, Costa Rica. The species is of biotechnological interest because its members produce a wide range of extracellular enzymes capable of degrading proteins and polysaccharides. After the genome sequence of Cellulophaga algicola this is the second completed genome sequence of a member of the genus Cellulophaga. The 3,765,936 bp long genome with its 3,303 protein-coding and 55 RNA genes consists of one circular chromosome and is a part of the Genomic Encyclopedia of Bacteria and Archaea project.
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- 2011
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11. Complete genome sequence of Desulfobulbus propionicus type strain (1pr3).
- Author
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Pagani I, Lapidus A, Nolan M, Lucas S, Hammon N, Deshpande S, Cheng JF, Chertkov O, Davenport K, Tapia R, Han C, Goodwin L, Pitluck S, Liolios K, Mavromatis K, Ivanova N, Mikhailova N, Pati A, Chen A, Palaniappan K, Land M, Hauser L, Chang YJ, Jeffries CD, Detter JC, Brambilla E, Kannan KP, Djao OD, Rohde M, Pukall R, Spring S, Göker M, Sikorski J, Woyke T, Bristow J, Eisen JA, Markowitz V, Hugenholtz P, Kyrpides NC, and Klenk HP
- Abstract
Desulfobulbus propionicus Widdel 1981 is the type species of the genus Desulfobulbus, which belongs to the family Desulfobulbaceae. The species is of interest because of its great implication in the sulfur cycle in aquatic sediments, its large substrate spectrum and a broad versatility in using various fermentation pathways. The species was the first example of a pure culture known to disproportionate elemental sulfur to sulfate and sulfide. This is the first completed genome sequence of a member of the genus Desulfobulbus and the third published genome sequence from a member of the family Desulfobulbaceae. The 3,851,869 bp long genome with its 3,351 protein-coding and 57 RNA genes is a part of the Genomic Encyclopedia of Bacteria and Archaea project.
- Published
- 2011
- Full Text
- View/download PDF
12. How socioeconomic status affects birth and death rates in rural Kerala, India: results of a health study.
- Author
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Kutty VR, Thankappan KR, Kannan KP, and Aravindan KP
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- Adolescent, Adult, Aged, Child, Child, Preschool, Demography, Female, Humans, India epidemiology, Infant, Infant, Newborn, Male, Middle Aged, Poverty, Sampling Studies, Socioeconomic Factors, Birth Rate, Health Status Indicators, Mortality
- Abstract
Data relating to birth and death were collected from throughout the state of Kerala, India, in a health survey conducted by the Kerala Sastra Sahitya Parishad, a voluntary organization. In this study, the authors analyze birth and death rates as calculated from the sample of 9,940 households (57,665 persons), with respect to other variables such as region, religion, and socioeconomic status. In order to study the effect of socioeconomic factors on birth and death rates, a socioeconomic status rating (SES rating) was developed, taking into account such factors as income, education, housing conditions, and land ownership. Socioeconomic status was found to have a definite influence on birth and death rates, with higher socioeconomic status resulting in lower birth and death rates. This effect was independent of such confounding variables as age structure of the population, religion, and region. The higher risk of mortality among the poorer households can partly be explained by the material deprivation: the higher birth rates could be the result of poorer educational attainments.
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- 1993
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13. Kerala: a unique model of development.
- Author
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Kannan KP, Thankappan KR, Ramankutty V, and Aravindan KP
- Subjects
- Asia, Delivery of Health Care, Demography, Developing Countries, Economics, Health, Health Services, India, Longevity, Medicine, Population, Population Characteristics, Sex Distribution, Sex Factors, Social Class, Child Welfare, Educational Status, Geography, Life Expectancy, Medicine, Traditional, Mortality, Population Dynamics, Sex Ratio, Socioeconomic Factors, Women's Rights
- Published
- 1991
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