1
|
Anbalagan S, Velasquez JH, Staufert Gutierrez D, Devagiri S, Nieto D, Ankola P. Correction: Music for pain relief of minor procedures in term neonates. Pediatr Res 2024; 95:1158. [PMID: 37773441 DOI: 10.1038/s41390-023-02834-5] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/01/2023]
Affiliation(s)
- Saminathan Anbalagan
- Department of Pediatrics, Lincoln Medical & Mental Health Center, Bronx, NY, USA.
- Department of Pediatrics/Neonatology, Thomas Jefferson University, Philadelphia, PA, USA.
| | - Juan H Velasquez
- Department of Pediatrics, Lincoln Medical & Mental Health Center, Bronx, NY, USA
- Department of Pediatrics/Neonatology, University of Southern California, Los Angeles, CA, USA
| | - Denisse Staufert Gutierrez
- Department of Pediatrics, Lincoln Medical & Mental Health Center, Bronx, NY, USA
- Department of Pediatrics/Developmental Medicine, UCLA Mattel Children's Hospital, Los Angeles, CA, USA
| | - Sailaja Devagiri
- Department of Pediatrics, Lincoln Medical & Mental Health Center, Bronx, NY, USA
- Department of Pediatrics/Neonatology, East Carolina University, Greenville, NC, USA
| | - Daniel Nieto
- Department of Pediatrics, Lincoln Medical & Mental Health Center, Bronx, NY, USA
- Department of Pediatrics, Family Health Centers of Southwest, Florida, Cape Coral, FL, USA
| | - Pratibha Ankola
- Department of Pediatrics, Lincoln Medical & Mental Health Center, Bronx, NY, USA
- Department of Obstetrics/Neonatology, BronxCare Health System & Icahn School of Medicine, Bronx, NY, USA
| |
Collapse
|
2
|
Anbalagan S, Velasquez JH, Staufert Gutierrez D, Devagiri S, Nieto D, Ankola P. Music for pain relief of minor procedures in term neonates. Pediatr Res 2024; 95:679-683. [PMID: 37640940 DOI: 10.1038/s41390-023-02746-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 05/04/2023] [Accepted: 05/15/2023] [Indexed: 08/31/2023]
Abstract
BACKGROUND Music for neonatal pain has not been exclusively studied in term neonates in a well-designed trial compared to the standard of care. This study aims to assess the effectiveness of music intervention as an adjuvant in relieving acute pain in term newborns undergoing minor painful procedures. METHODS This randomized, controlled, blinded trial included any term neonate undergoing heel prick. Both control and intervention groups received oral sucrose 2 min before heel prick. Intervention group was exposed to 'Bedtime Mozart' lullaby recorded music via bedside speakers. Pain was measured using Neonatal Infant Pain Scale (NIPS) at 1-min intervals. Investigators were blinded using noise-canceling headphones that played random music. RESULTS A total of 100 neonates were enrolled. Mean gestational age was 39.2 weeks, and mean duration of the procedure was 113 s. Music group was found to have significantly lower pain scores [OR = 0.42 (0.31, 0.56), p < 0.001]. Baseline NIPS scores were similar across groups and there was no interaction effect between groups and time. When NIPS were categorized as pain and no pain, there continued to be statistically significant lower NIPS scores in the music group (p < 0.001). CONCLUSION Recorded music, in addition to sucrose, is efficacious in reducing pain, encouraging its use in term neonates. IMPACT Recorded music effectively reduces pain induced by minor procedures in term neonates. Clinical studies have shown that live and recorded music induces changes in vital signs and pain scores in the NICU's predominantly preterm population. Most of these studies were also conducted in the white ethnic population. Our study objectively proves reduction in pain scores by using recorded music in a randomized, controlled, blinded study of predominantly non-white, term neonates. Recorded music is effective in reducing acute pain in term neonates and can be widely used even in low-resource nurseries.
Collapse
Affiliation(s)
- Saminathan Anbalagan
- Department of Pediatrics, Lincoln Medical & Mental Health Center, Bronx, NY, USA.
- Department of Pediatrics/Neonatology, Thomas Jefferson University, Philadelphia, PA, USA.
| | - Juan H Velasquez
- Department of Pediatrics, Lincoln Medical & Mental Health Center, Bronx, NY, USA
- Department of Pediatrics/Neonatology, University of Southern California, Los Angeles, CA, USA
| | - Denisse Staufert Gutierrez
- Department of Pediatrics, Lincoln Medical & Mental Health Center, Bronx, NY, USA
- Department of Pediatrics/Developmental Medicine, UCLA Mattel Children's Hospital, Los Angeles, CA, USA
| | - Sailaja Devagiri
- Department of Pediatrics, Lincoln Medical & Mental Health Center, Bronx, NY, USA
- Department of Pediatrics/Neonatology, East Carolina University, Greenville, NC, USA
| | - Daniel Nieto
- Department of Pediatrics, Lincoln Medical & Mental Health Center, Bronx, NY, USA
- Department of Pediatrics, Family Health Centers of Southwest, Florida, Cape Coral, FL, USA
| | - Pratibha Ankola
- Department of Pediatrics, Lincoln Medical & Mental Health Center, Bronx, NY, USA
- Department of Obstetrics/Neonatology, BronxCare Health System & Icahn School of Medicine, Bronx, NY, USA
| |
Collapse
|
3
|
Vidyasakar A, Krishnakumar S, Kumar KS, Neelavannan K, Anbalagan S, Kasilingam K, Srinivasalu S, Saravanan P, Kamaraj S, Magesh NS. Microplastic contamination in edible sea salt from the largest salt-producing states of India. Mar Pollut Bull 2021; 171:112728. [PMID: 34303058 DOI: 10.1016/j.marpolbul.2021.112728] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [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: 04/13/2021] [Revised: 07/05/2021] [Accepted: 07/12/2021] [Indexed: 06/13/2023]
Abstract
The presence of microplastics in all ecological and environmental conditions has been identified as a global problem. This article aimed to study edible salt-associated microplastics from the major salt-producing states of India. The crystal and powder salt from Tamil Nadu and Gujarat (five samples of powder salt and three samples of crystal salt from each state) were collected and analyzed for their microplastic content. The total microplastic content in the salts ranged from 46 to 115 particles per 200 g in Gujarat salt and 23 to 101 particles per 200 g in Tamil Nadu salt. The microplastics are dominated by red and blue color fibrous-shaped materials. The most common microplastics identified in the edible salts were polyethylene, polyester, and polyvinyl chloride derived from marine and salt-processing units.
Collapse
Affiliation(s)
- A Vidyasakar
- Department of Geology, Periyar University PG Extension Centre, Dharmapuri 636701, Tamil Nadu, India
| | - S Krishnakumar
- Department of Geology, Malankara catholic college, Mariyagiri, Kaliyakkavilai, Kanyakumari - 629153.
| | - K Suresh Kumar
- Department of Geology, University of Madras, Guindy Campus, Chennai 600 025, Tamil Nadu, India
| | - K Neelavannan
- Institute for Ocean Management, Anna University, Chennai 600025, Tamil Nadu, India
| | - S Anbalagan
- Institute for Ocean Management, Anna University, Chennai 600025, Tamil Nadu, India
| | - K Kasilingam
- Department of Geology, University of Madras, Guindy Campus, Chennai 600 025, Tamil Nadu, India
| | - S Srinivasalu
- Institute for Ocean Management, Anna University, Chennai 600025, Tamil Nadu, India
| | - P Saravanan
- Department of Geology, University of Madras, Guindy Campus, Chennai 600 025, Tamil Nadu, India
| | - S Kamaraj
- Department of Biotechnology, Periyar University PG Extension Centre, Dharmapuri 636701, Tamil Nadu, India
| | - N S Magesh
- National Centre for Polar and Ocean Research, Ministry of Earth Sciences, Headland Sada, Vasco-da-Gama 403804, Goa, India.
| |
Collapse
|
4
|
Robinson R, Roxanis I, Sobhani F, Zormpas-Petridis K, Steel H, Anbalagan S, Sommer A, Gothard L, Khan A, MacNeill F, Melcher A, Yuan Y, Somaiah N. PO-1085 Longitudinal assessment of immune infiltrate in breast cancer treated with neoadjuvant radiotherapy. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)07536-8] [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: 10/20/2022]
|
5
|
Krishnakumar S, Vidyasakar A, Anbalagan S, Godson PS, Kasilingam K, Parthasarathy P, Pradhap D, Saravanan P, Hariharan S, Rajkumar A, Neelavannan K, Magesh NS. Bioavailable trace metals and their ecological risks in the tourist beaches of the Southeast coast of India. Mar Pollut Bull 2020; 160:111562. [PMID: 32853841 DOI: 10.1016/j.marpolbul.2020.111562] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Revised: 07/31/2020] [Accepted: 08/09/2020] [Indexed: 05/12/2023]
Abstract
The concentration of Acid Leachable Trace Metals (ALTMs) was assessed in urbanized tourist beaches (96 samples from Marina beach, 34 samples from Edward Elliot's beach, and 28 samples from Silver beach) of southeast coast of India. The concentration of metals accumulated in the beach sediment was less than the Upper Continental Crust (UCC) background reference values. The mean enrichment of ALTMs in the studied urban tourist beaches showed the following descending order: Marina beach - Cr > Pb > Ni > Zn > Cu > Mn > Co; Edward Elliot's beach - Cr > Pb > Ni > Mn > Co > Zn > Cu; Silver beach - Cr > Pb > Ni > Co > Mn > Cu > Zn. The ALTMs such as Fe, Mn, Co, Cu, and Zn were probably derived from natural weathering and mild anthropogenic influences whereas other metals were derived from anthropogenic induced factors.
Collapse
Affiliation(s)
- S Krishnakumar
- Department of Geology, University of Madras, Guindy Campus, Chennai 600025, India.
| | - A Vidyasakar
- Department of Geology, Periyar University PG Extension Centre, Dharmapuri 636701, India
| | - S Anbalagan
- Institute for Ocean Management, Anna University, Chennai 600025, India
| | - Prince S Godson
- Department of Environmental Sciences, University of Kerala, Thiruvananthapuram 695581, India
| | - K Kasilingam
- Department of Geology, University of Madras, Guindy Campus, Chennai 600025, India
| | - P Parthasarathy
- Department of Geology, A.V.S College of Arts and Science, Salem 636 106, India
| | - D Pradhap
- Department of Geology, University of Madras, Guindy Campus, Chennai 600025, India
| | - P Saravanan
- Department of Geology, University of Madras, Guindy Campus, Chennai 600025, India
| | - S Hariharan
- Department of Geology, Central University of Karnataka, Kadaganchi, Karnataka 585367, India
| | - A Rajkumar
- Department of Geology, University of Madras, Guindy Campus, Chennai 600025, India
| | - K Neelavannan
- Institute for Ocean Management, Anna University, Chennai 600025, India
| | - N S Magesh
- National Centre for Polar and Ocean Research, Ministry of Earth Sciences, Headland Sada, Vasco-da-Gama, Goa 403 804, India.
| |
Collapse
|
6
|
Hussain SM, Anbalagan S, Kumar KS, Neelavannan K, Pradhap D, Radhakrishnan K, Godson PS, Krishnakumar S. A baseline study on elemental concentration and potential ecological risk status of the surface sediments of Ashtamudi Lake, south west coast of India. Mar Pollut Bull 2020; 158:111410. [PMID: 32753194 DOI: 10.1016/j.marpolbul.2020.111410] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 06/13/2020] [Accepted: 06/24/2020] [Indexed: 06/11/2023]
Abstract
Element concentration (Fe, Mn, Pb, Zn, Cu, Cr, Ni and Co) in the surface sediments of Ashtamudi estuary, Southwest coast of India, has been analyzed to understand the spatial variation and potential ecological risk status. The sediment pollution index and Potential Ecological Risk index suggest that the northeastern part of the estuary exhibits low to moderate polluted sediments with moderate ecological risk. The results of correlation analysis indicate that the natural weathering process and river input play an important role in the distribution of the elements in the surface sediments of the estuary. The extracted factor results indicate that the fine sediment fractions supporting for accumulation of the trace elements, whereas the enriched level of Fe and Mn is chiefly controlled by the riverine process, and other elements are contributed by anthropogenic influences.
Collapse
Affiliation(s)
- S M Hussain
- Department of Geology, University of Madras, Guindy Campus, Chennai 600 025, Tamil Nadu, India
| | - S Anbalagan
- Institute for Ocean Management, Anna University, Chennai 600025, Tamil Nadu, India
| | - K Suresh Kumar
- Department of Geology, University of Madras, Guindy Campus, Chennai 600 025, Tamil Nadu, India
| | - K Neelavannan
- Institute for Ocean Management, Anna University, Chennai 600025, Tamil Nadu, India
| | - D Pradhap
- Department of Geology, University of Madras, Guindy Campus, Chennai 600 025, Tamil Nadu, India
| | - K Radhakrishnan
- Department of Geology, University of Madras, Guindy Campus, Chennai 600 025, Tamil Nadu, India
| | - Prince S Godson
- Department of Environmental Sciences, University of Kerala, Thiruvananthapuram 695581, Kerala, India
| | - S Krishnakumar
- Institute for Ocean Management, Anna University, Chennai 600025, Tamil Nadu, India.
| |
Collapse
|
7
|
Somaiah N, Anbalagan S, Strom C, Downs J, Jeggo P, Wilkins A, Boyle S, Rothkamm K, Yarnold J. OC-0380: Cell cycle checkpoint modulates radiotherapy fraction size sensitivity in normal and malignant cells. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)30690-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
8
|
Harishankar M, Anbalagan S, Selvaraj P. Effect of vitamin D 3 on chemokine levels and regulatory T-cells in pulmonary tuberculosis. Int Immunopharmacol 2016; 34:86-91. [DOI: 10.1016/j.intimp.2016.02.021] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Revised: 02/19/2016] [Accepted: 02/19/2016] [Indexed: 12/18/2022]
|
9
|
Anbalagan S, Arunprasanna V, Kannan M, Dinakaran S, Krishnan M. Spatio-temporal dynamics of mosquitoes in stream pools of a biosphere reserve of Southern Western Ghats, India. Acta Trop 2015; 152:228-236. [PMID: 26434940 DOI: 10.1016/j.actatropica.2015.09.024] [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: 07/11/2015] [Revised: 09/22/2015] [Accepted: 09/27/2015] [Indexed: 11/17/2022]
Abstract
The spatial and temporal dynamics of mosquitoes in stream pools were examined in a biosphere reserve of the Southern Western Ghats, India. The immature mosquitoes in stream pools were collected from stream substrates of bedrock pool, boulder cavity and sand puddle. The collected larvae and pupae were reared and identified. In total, 16 species from four genera of mosquitoes were collected. The mosquito species from Culex and Anopheles were predominantly occurred. The bedrock pool had the highest diversity and abundance of mosquitoes. The statistical analyses showed that the substrate specificity and the seasons were positively related to the distribution of mosquitoes rather than spatial pattern. This study described the spatial and temporal pattern of mosquitoes in stream pools of the Southern Western Ghats. This information would be helpful to National Vector borne disease control program for surveillance and control.
Collapse
Affiliation(s)
- S Anbalagan
- Department of Zoology, Government Arts College (Affiliated to Periyar University), Salem, Tamil Nadu, India.
| | - V Arunprasanna
- Department of Environmental Biotechnology, Bharathidasan University, Tiruchirappalli, Tamil Nadu, India
| | - M Kannan
- Department of Environmental Biotechnology, Bharathidasan University, Tiruchirappalli, Tamil Nadu, India
| | - S Dinakaran
- Department of Zoology, The Madura College, Madurai, Tamil Nadu, India
| | - M Krishnan
- Department of Environmental Biotechnology, Bharathidasan University, Tiruchirappalli, Tamil Nadu, India
| |
Collapse
|
10
|
Anbalagan S, Arunprasanna V, Kannan M, Dinakaran S, Krishnan M. Simulium (Gomphostilbia) (Diptera: Simuliidae) from Southern Western Ghats, India: two new species and DNA barcoding. Acta Trop 2015; 149:94-105. [PMID: 25997885 DOI: 10.1016/j.actatropica.2015.05.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2015] [Revised: 05/14/2015] [Accepted: 05/16/2015] [Indexed: 11/17/2022]
Abstract
Two new species of Simulium (Gomphostilbia) (Diptera: Simuliidae) are described on the basis of reared adult, pupal and larval specimens collected from Southern Western Ghats India. The morphological data of two new species S. (Gomphostilbia) panagudiense sp. n. and S. (Gomphostilbia) kottoorense sp. n. are assigned to the batoense species group in the subgenus Gomphostilbia. S. (Gomphostilbia) panagudiense sp.n. is characterized in the female by having the scutum without longitudinal vitta and arms of the genital fork wide basally and in the pupa by the stalk of ventral pair medium-long. S. (Gomphostilbia) kottoorense sp.n. is characterized by the arm of genital fork tapered near apex in the female and style in medial view 0.63 times as long as coxite in the male. Phylogeny of members in the genus Simulium was reconstructed based on DNA barcoding gene (cytochrome oxidase c subunit I). Tree analysis using new technology and maximum likelihood analyses are congruent with evidence of two new species in the subgenus Gomphostilbia and separated from other species.
Collapse
Affiliation(s)
- S Anbalagan
- Department of Environmental Biotechnology, Bharathidasan University, Tiruchirappalli, Tamil Nadu,India.
| | - V Arunprasanna
- Department of Environmental Biotechnology, Bharathidasan University, Tiruchirappalli, Tamil Nadu,India
| | - M Kannan
- Department of Environmental Biotechnology, Bharathidasan University, Tiruchirappalli, Tamil Nadu,India
| | - S Dinakaran
- Department of Zoology, The Madura College, Madurai,Tamil Nadu, India
| | - M Krishnan
- Department of Environmental Biotechnology, Bharathidasan University, Tiruchirappalli, Tamil Nadu,India
| |
Collapse
|
11
|
Affiliation(s)
- M Manoj Kumar
- Department of Pediatrics, Institute of Child Health and Hospital for Children, Chennai, Tamil Nadu, India
| | - V Poovazhagi
- Department of Pediatric Intensive Care Unit, Institute of Child Health and Hospital for Children, Chennai, Tamil Nadu, India
| | - S Anbalagan
- Department of ENT, Institute of Child Health and Hospital for Children, Chennai, Tamil Nadu, India
| | - N Devasena
- Department of Microbiology, Institute of Child Health and Hospital for Children, Chennai, Tamil Nadu, India
| |
Collapse
|
12
|
Dinakaran S, Anbalagan S, Balachandran C. A new species of caddisfly (Trichoptera: Lepidostomatidae: Lepidostoma) from Tamil Nadu, India. J Threat Taxa 2013. [DOI: 10.11609/jott.o2116.790] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
|
13
|
Dinakaran S, Anbalagan S. Spatio-temporal dynamics of caddisflies in streams of southern Western Ghats. J Insect Sci 2010; 10:46. [PMID: 20572787 PMCID: PMC3014773 DOI: 10.1673/031.010.4601] [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] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2007] [Accepted: 08/27/2008] [Indexed: 05/29/2023]
Abstract
The dynamics of physico-chemical factors and their effects on caddisfly communities were examined in 29 streams of southern Western Ghats. Monthly samples were collected from the Thadaganachiamman stream of Sirumalai Hills, Tamil Nadu from May 2006 to April 2007. Southwest and northeast monsoons favored the existence of caddisfly population in streams. A total of 20 caddisfly taxa were collected from 29 streams of southern Western Ghats. Hydropsyche (Trichoptera: Hydropsychidae) were more widely distributed throughout sampling sites than were the other taxa. Canonical correspondence analysis showed that elevation was a major variable and pH, stream order, and stream substrates were minor variables affecting taxa richness. These results suggested that habitat heterogeneity and seasonal changes were stronger predictors of caddisfly assemblages than large-scale patterns in landscape diversity.
Collapse
Affiliation(s)
- S. Dinakaran
- Centre for Research in Aquatic Entomology, Department of Zoology, The Madura College (Autonomous), Madurai -625 011, Tamil Nadu, India
| | - S. Anbalagan
- Centre for Research in Aquatic Entomology, Department of Zoology, The Madura College (Autonomous), Madurai -625 011, Tamil Nadu, India
| |
Collapse
|
14
|
Dinakaran S, Anbalagan S, Lingathurai S, Martin M. Macroinvertebrate colonization and breakdown of leaves in an astatic pond in south India. J Environ Biol 2008; 29:249-252. [PMID: 18831384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Macroinvertebrate colonization and breakdown of Pongamia pinnata and Morinda tinctoria leaves were studied in an astatic pond in Madura College, Madurai. Morinda tinctoria leaves broke down fasterthan the leaves of P. pinnata. Breakdown capacities of astatic pond cannot be attributed to colonization of macroinvertebrates. Instead, microbial processing, and abiotic fragmentation are suggested as factors controlling breakdown rates. Tanypus sp (midgelarva) was abundant in leaf bags during the experimental period. This midge-larva appeared to use litter accumulations as a microhabitat that provided shelter and a rich supply of food in the form of organic matter Their abundance and regular occurrence of two leaves suggest that midge larvae enhance leaf fragmentation and possibly mediate the incorporation of organic matter in pond sediments once the plant tissue is sufficiently macerated.
Collapse
Affiliation(s)
- S Dinakaran
- Centre for Research in Aquatic Entomology, Department of Zoology, The Madura College, Madurai, India.
| | | | | | | |
Collapse
|
15
|
Dinakaran S, Anbalagan S. Anthropogenic impacts on aquatic insects in six streams of South Western ghats. J Insect Sci 2007; 7:37. [PMID: 20302463 PMCID: PMC2999441 DOI: 10.1673/031.007.3701] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [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: 06/07/2006] [Accepted: 11/09/2006] [Indexed: 05/27/2023]
Abstract
Diversity patterns of aquatic insects among sampling sites lying with!ç the unprotected and protected areas of Western Ghats were studied. This study primarily emphasizes whether anthropogenic influence is the prime cause for the presence of aquatic insects especially of pollution-sensitive organisms belonging to the orders Ephemeroptera, Plecoptera and Trichoptera, or to factors such as the physico-chemical features of the water, or sampling methods. Six streams were sampled quantitatively, of which three streams (Abbifalls, Monkey falls and Silver Cascade) were within protected areas and the remaining three streams (Kumbakarai, Shenbagadevi and Manimutharu falls) were in unprotected areas. A total of 3,209 individual aquatic insects belonging to 25 genera, 18 families and 7 orders were collected. The highest species richness and abundance was observed in Monkey falls followed by Kumbakkarai falls. Large numbers of more habitat-sensitive organisms such as Ecdyonurus sp., Epeorus sp., Thalerosphyrus sp., Euthraulus sp., and Nathanella sp., were found in Monkey falls. Though the species assemblage was somewhat different, pollution-sensitive taxa were also observed in Kumbakkarai falls. Shenbagadevi and Manimutharu falls had a lower diversity of aquatic insects. The likely causes of these differences are discussed.
Collapse
Affiliation(s)
- S. Dinakaran
- Centre for Research in Aquatic Entomology, The Madura College, Madurai - 625 011. Tamil Nadu, India
| | - S. Anbalagan
- Centre for Research in Aquatic Entomology, The Madura College, Madurai - 625 011. Tamil Nadu, India
| |
Collapse
|
16
|
Balaji V, Vanitharani R, Karthikeyan AS, Anbalagan S, Veluthambi K. Infectivity analysis of two variable DNA B components of Mungbean yellow mosaic virus-Vigna in Vigna mungo and Vigna radiata. J Biosci 2005; 29:297-308. [PMID: 15381851 DOI: 10.1007/bf02702612] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Mungbean yellow mosaic virus-Vigna (MYMV-Vig), a Begomovirus that causes yellow mosaic disease, was cloned from field-infected blackgram (Vigna mungo). One DNA A clone (KA30) and five different DNA B clones (KA21, KA22, KA27, KA28 and KA34) were obtained. The sequence identity in the 150-nt common region (CR) between DNA A and DNA B was highest (95%) for KA22 DNA B and lowest (85.6%) for KA27 DNA B. The Rep-binding domain had three complete 11-nt (5'-TGTATCGGTGT-3') iterons in KA22 DNA B (and KA21, KA28 and KA34), while the first iteron in KA27 DNA B (5'-ATCGGTGT-3') had a 3-nt deletion. KA27 DNA B, which exhibited 93.9% CR sequence identity to the mungbean-infecting MYMV, also shared the 3-nt deletion in the first iteron besides having an 18-nt insertion between the third iteron and the conserved nonanucleotide. MYMV was found to be closely related to KA27 DNA B in amino acid sequence identity of BV1 (94.1%) and BC1 (97.6%) proteins and in the organization of nuclear localization signal (NLS), nuclear export signal (NES) and phosphorylation sites. Agroinoculation of blackgram (V. mungo) and mungbean (V. radiata) with partial dimers of KA27 and KA22 DNA Bs along with DNA A caused distinctly different symptoms. KA22 DNA B caused more intense yellow mosaic symptoms with high viral DNA titre in blackgram. In contrast, KA27 DNA B caused more intense yellow mosaic symptoms with high viral DNA titre in mungbean. Thus, DNA B of MYMVVig is an important determinant of host-range between V. mungo and V. radiata.
Collapse
Affiliation(s)
- V Balaji
- Centre for Plant Molecular Biology, School of Biotechnology, Madurai Kamaraj University, 625 021, India
| | | | | | | | | |
Collapse
|
17
|
Ramadass P, Thiagarajan V, Parthiban M, Senthil Kumar TMA, Latha D, Anbalagan S, Krishnakumar M, Nachimuthu K. Sequence analysis of infectious bursal disease virus isolates from India: phylogenetic relationships. Acta Virol 2003; 47:131-5. [PMID: 14658839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/27/2023]
Abstract
Prevalence of infectious bursal disease (IBD) among chickens in different parts of Tamil Nadu, India, has been studied by collection of bursal samples from suspected flocks and by performing reverse transcription-polymerase chain reaction (RT-PCR) for amplification of a specific product of 474 bp from the variable region of the VP2 gene. Among 53 bursal samples examined by RT-PCR, 40 showed a positive reaction. The amplified products were subjected to nucleotide sequencing and the obtained sequences were compared with those of IBD virus (IBDV) vaccine strain Georgia, the classical virulent strain 52/70 and the very virulent Japanese OKYM strain. Nucleotide homology data indicated that all the Tamil Nadu isolates showed homology ranging from 91 to 99.6% among themselves. When compared with the very virulent Japanese OKYM strain, four isolates grouped with that strain. Majority of the isolates clustered with the very the virulent OKYM strain as evident from phylogenetic analysis performed using the MEGA program. Comparison of the deduced amino acid sequences of IBDV isolates with those of the vaccine strain Georgia, the classical virulent strain 52/70 and the very virulent strain OKYM also revealed the presence of conserved serine-rich heptapeptide sequence in most of the isolates. Results of this study indicate that majority of the IBDV isolates are very virulent, which is evident from heavy mortality that has been reported in few flocks of poultry in spite of regular vaccination.
Collapse
Affiliation(s)
- P Ramadass
- Department of Animal Biotechnology, Madras Veterinary College, Chennai 600 007, India
| | | | | | | | | | | | | | | |
Collapse
|
18
|
Abstract
A leukocyte classification algorithm suitable for automated differential counting has been developed for blood smears stained with a new three-component cytochemical stain which has relatively narrow absorption bands centered at 460, 540 and 640 nm, respectively. The classification procedure is the result of a pattern recognition experiment using a sample of 223 leukocytes distributed evenly over the five normal cell types. The basic data for each cell were three digital microscopic images obtained with narrow band illumination at the above central wavelengths using a TV-digitizer system interfaced to a PDP-15 computer. The classification algorithm involves a sequential decision procedure utilizing five pattern features computed from the intensity histograms of the green and blue digital images. Thus the number of arithmetic operations and the number of computer memory words necessary to perform the classification into one of the five normal white blood cell types are both proportional to n where n is the number of gray levels into which the intensity scale is divided. In this experiment, n equals 256. Comparison of our results with work of others on smears prepared with Romanowski-type stains indicates that such narrow-band, spectrally well separated cytochemical multiple stains can permit the use of algorithms which are approximately ten times faster.
Collapse
|