Institution
Central University of Kerala
Education•Kāsaragod, India•
About: Central University of Kerala is a education organization based out in Kāsaragod, India. It is known for research contribution in the topics: Population & Catalysis. The organization has 556 authors who have published 881 publications receiving 7474 citations.
Topics: Population, Catalysis, Crystal structure, Gene, Magnetization
Papers
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3 citations
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TL;DR: This study suggests that solitary parasitoids also induce multiple physiological changes to influence the host behaviour to their advantage, as is the case with the gregarious parasitoid.
Abstract: Host manipulation is a strategy used by some parasites to enhance their transmission. These parasites use a combination of neuropharmacological, psychoneuroimmunological, genomic/proteomic, or symbiont‐mediated mechanisms to manipulate their hosts. Bodyguard manipulation occurs when parasitized hosts guard parasitoid pupae to protect them from their natural enemies. Bodyguard‐manipulated hosts exhibit altered behaviours only after the egression of parasitoid prepupae. Behavioural changes in post‐parasitoid egressed hosts could have resulted from their altered physiology. Previous studies have shown that gregarious manipulative parasitoids induce multiple physiological changes in their host, but the physiological changes induced by solitary manipulative parasitoids are unknown. Microplitis pennatulae Ranjith & Rajesh (Hymenoptera: Braconidae) is a larval parasitoid of Psalis pennatula Fabricius (Lepidoptera: Erebidae). After the egression of parasitoid prepupae, P. pennatula stops its routine activities and protects the parasitoid pupa from hyperparasitoids by body thrashes. In this study, we looked into the physiological changes induced by the solitary manipulative parasitoid, M. pennatulae, in its host, P. pennatula, during various stages of parasitization. We considered octopamine concentration and phenoloxidase (PO) activity as biomarkers of physiological change. We also examined whether M. pennatulae has a symbiotic virus and whether the wasp transfers it to the host during parasitization. We found that octopamine concentration was low in the pre‐parasitoid egressed host, but it was elevated after the parasitoid egressed. Phenoloxidase activity was lower in the pre‐ and post‐parasitoid egressed host than in the unparasitized host. We also detected symbiotic bracovirus (BV) in the wasp ovaries and isolated the BV virulence gene from the parasitised host. Our study suggests that solitary parasitoids also induce multiple physiological changes to influence the host behaviour to their advantage, as is the case with the gregarious parasitoids.
3 citations
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TL;DR: In this paper, the tropospheric decomposition mechanism of trans-2-hexenal with oxidants (i) •NO3, (ii) •OH, (iii) Cl, and (iv) O3 present in the atmosphere is discussed employing density functional theory.
3 citations
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3 citations
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TL;DR: In vitro and in vivo anti- inflammatory activity of M. ferrea L ethyl acetate bark extract exhibited significant in vitroand in vivoanti-inflammatory activity is indicated.
Abstract: Objective: Mesuaferrea L is a medicinal plant belongs to the family Clusiace, it is extensively used in folk medicine for
treatment of chronic inflammatory diseases.The present study was aimed to evaluate in vitro and in vivo anti-inflammatory
activity of M. ferrea L. Methods: The in vitro anti-inflammatory activities such as nitric oxide, PGE2, pro-inflammatory
cytokines (TNF-α and IL-1β) were studied in RAW 264.7 cells and in vivo studies were carried out on carrageenan -induced
inflammation in Wistar rats. The sequentially extracted M. ferreaL bark extracts (MFBHE, MFBEE, and MFBME)
exhibited inhibitory effects on pro-inflammatory mediators such as nitric oxide, prostaglandin E2, tumour necrosis factorαandinterleukin-1βproduction
in concentration dependent manner in LPS induced RAW 264.7 cells andCarrageenan
induced paw oedema in Wistar rats. Conclusion: The result of the present study indicated that M. ferrea L ethyl acetate
bark extract exhibited significant in vitroand in vivoanti-inflammatory activity.
3 citations
Authors
Showing all 566 results
Name | H-index | Papers | Citations |
---|---|---|---|
Ajay Kumar | 53 | 809 | 12181 |
Kavumpurathu Raman Thankappan | 43 | 190 | 16724 |
M.R. Prathapachandra Kurup | 31 | 157 | 2804 |
Ayyamperumal Sakthivel | 29 | 110 | 2776 |
Perumana R. Sudhakaran | 23 | 91 | 1563 |
T. Dennis Thomas | 21 | 55 | 1381 |
Pradeepan Periyat | 21 | 47 | 1875 |
Rishiram Ramanan | 21 | 29 | 2134 |
Margandan Bhagiyalakshmi | 19 | 39 | 1481 |
Maliyeckal R. Prathapachandra Kurup | 19 | 69 | 1439 |
Rajendra Pilankatta | 17 | 37 | 676 |
Subasa C. Sahoo | 15 | 53 | 622 |
V. B. Sameer Kumar | 15 | 36 | 584 |
Alagu Manickavelu | 15 | 28 | 806 |
Swapna S. Nair | 14 | 57 | 1252 |