1
|
Kodical DD, Fernandes J, Mathew J, Deepthi K, Bhaskar KV. Isolation of Chemical Constituents and Invitro Antidiabetic Activity of Mirabilis Jalapa Flower Extracts. JPRI 2021. [DOI: 10.9734/jpri/2021/v33i60a34501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Objectives: The present work was designed to investigate the phytochemical and in vitro screening of the flower extracts of Mirabilis jalapa.
Materials and Methods: Phytochemical constituents were isolated using column chromatography and characterized of the compounds were carried out using IR, 1H NMR, 13C NMR and mass spectroscopy data. In vitro anti-diabetic activity was evaluated by alpha-amylase inhibition assay and Alpha-glucosidase inhibition assay.
Results: Phytochemical investigation of the ethanol extract revealed the presence of a flavonoid Kaempferol and a triterpenoid Lupeol. In vitro investigation indicated that the Mirabilis jalapa flowers extracts has considerable anti-diabetic activity
Conclusion: The anti-diabetic activity may due to the presence of phytoconstituents like flavonoids, triterpenoids, steroids.
Collapse
|
2
|
K D, A S J, Liu Y. A deep learning ensemble approach to prioritize antiviral drugs against novel coronavirus SARS-CoV-2 for COVID-19 drug repurposing. Appl Soft Comput 2021; 113:107945. [PMID: 34630000 PMCID: PMC8492370 DOI: 10.1016/j.asoc.2021.107945] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Revised: 08/22/2021] [Accepted: 09/23/2021] [Indexed: 12/13/2022]
Abstract
The alarming pandemic situation of Coronavirus infectious disease COVID-19, caused by the severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), has become a critical threat to public health. The unexpected outbreak and unrealistic progression of COVID-19 have generated an utmost need to realize promising therapeutic strategies to fight the pandemic. Drug repurposing-an efficient drug discovery technique from approved drugs is an emerging tactic to face the immediate global challenge. It offers a time-efficient and cost-effective way to find potential therapeutic agents for the disease. Artificial Intelligence-empowered deep learning models enable the rapid identification of potentially repurposable drug candidates against diseases. This study presents a deep learning ensemble model to prioritize clinically validated anti-viral drugs for their potential efficacy against SARS-CoV-2. The method integrates the similarities of drug chemical structures and virus genome sequences to generate feature vectors. The best combination of features is retrieved by the convolutional neural network in a deep learning manner. The extracted deep features are classified by the extreme gradient boosting classifier to infer potential virus–drug associations. The method could achieve an AUC of 0.8897 with 0.8571 prediction accuracy and 0.8394 sensitivity under the fivefold cross-validation. The experimental results and case studies demonstrate the suggested deep learning ensemble system yields competitive results compared with the state-of-the-art approaches. The top-ranked drugs are released for further wet-lab researches.
Collapse
Affiliation(s)
- Deepthi K
- Department of Computer Science, College of Engineering, Vadakara (CAPE, Govt. of Kerala), Kozhikkode 673104, Kerala, India
- Bioinformatics Lab, Department of Computer Science, Cochin University of Science and Technology, Kochi 682022, Kerala, India
| | - Jereesh A S
- Bioinformatics Lab, Department of Computer Science, Cochin University of Science and Technology, Kochi 682022, Kerala, India
| | - Yuansheng Liu
- College of Information Science and Engineering, Hunan University, 2 Lushan S Rd, Yuelu District, 410086, Changsha, China
| |
Collapse
|
3
|
Deepthi K, Roopesh BN, Balachander S, Vijay Sagar JK, Kandavel T, Reddy YCJ. Neuropsychological performance in youth with obsessive-compulsive disorder. J Psychiatr Res 2021; 138:301-310. [PMID: 33892268 DOI: 10.1016/j.jpsychires.2021.03.066] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 03/03/2021] [Accepted: 03/31/2021] [Indexed: 11/26/2022]
Abstract
There is a paucity of literature on neuropsychological functions in youth with obsessive-compulsive disorder (OCD). Most studies have small sample sizes and have yielded inconsistent results. A recent meta-analysis failed to identify any significant impairments. We studied neuropsychological functions (attention, verbal fluency, working memory, set-shifting, response inhibition, planning and visuospatial abilities) in a large sample of youth with OCD (n = 97) in comparison with controls who did not have OCD (n = 50). After controlling for the confounding effects (age, sex, severity of depression and anxiety, presence of comorbid attention-deficit hyperactivity disorder, any tic disorder, number of comorbidities, and non-verbal intelligence measured by the standard progressive matrices), the youth with OCD significantly underperformed with large effect sizes compared to controls, only on the test of 'behavioral reversal', measured by the Object Alternation Test (trials to reach criterion p < 0.001, Cohen's d = 1.49; perseverative errors p < 0.001, Cohen's d = 1.31). Patients also underperformed on a task of planning, but it was statistically insignificant. Certain comorbid disorders, antipsychotic use and age of onset did not influence neuropsychological performance significantly. Our study demonstrates that youth with OCD may have impaired 'set-shifting' in the form of 'behavioral reversal' and possibly planning, findings broadly consistent with the literature in adults and with the fronto-striatal model of OCD. It is possible that youth may accumulate more neuropsychological impairments over a period, as the illness continues into adulthood.
Collapse
Affiliation(s)
- K Deepthi
- Department of Psychiatry, National Institute of Mental Health & Neurosciences (NIMHANS), Bangalore, India
| | - Bangalore N Roopesh
- Department of Clinical Psychology, National Institute of Mental Health & Neurosciences (NIMHANS), Bangalore, India
| | - Srinivas Balachander
- Department of Psychiatry, National Institute of Mental Health & Neurosciences (NIMHANS), Bangalore, India
| | - John K Vijay Sagar
- Department of Child and Adolescent Psychiatry, National Institute of Mental Health & Neurosciences (NIMHANS), Bangalore, India
| | - Thennarasau Kandavel
- Department of Biostatistics, National Institute of Mental Health & Neurosciences (NIMHANS), Bangalore, India
| | - Y C Janardhan Reddy
- Department of Psychiatry, National Institute of Mental Health & Neurosciences (NIMHANS), Bangalore, India.
| |
Collapse
|
4
|
Vyas V, K D, Singh K. A Case of Neonatal Diabetes Mellitus Due to INS Gene Mutation with Maternal Mosaicism and Atypical Presentation. J Pediatr Genet 2021; 10:156-158. [PMID: 33996188 DOI: 10.1055/s-0040-1710341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Accepted: 03/26/2020] [Indexed: 10/24/2022]
Abstract
Neonatal diabetes mellitus is a single gene defect that results in diabetes mellitus in the first 6 months of life. We report a child who was diagnosed to be hyperglycemic at 13 months of life and assumed to have type 1 diabetes mellitus and started on insulin. The child came to us at 2 and 1/2 years of age. He had exceptionally good blood glucose control. His history revealed that he was symptomatic with a voracious appetite and poor weight gain since the second half of infancy. Genetic testing revealed a heterozygous mutation of the INS gene (the gene that codes for insulin). The condition has autosomal dominant inheritance. Testing the parents revealed that the mother had 7.8% mosaicism for this variant in her lymphocyte DNA. Though this did not alter the management of the patient, it did help in counseling the parents regarding risk of recurrence in future pregnancies.
Collapse
Affiliation(s)
- Varuna Vyas
- Department of Pediatrics, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India
| | - Deepthi K
- Department of Pediatrics, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India
| | - Kuldeep Singh
- Department of Pediatrics, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India
| |
Collapse
|
5
|
Deepthi K, Jereesh A. An ensemble approach for CircRNA-disease association prediction based on autoencoder and deep neural network. Gene 2020; 762:145040. [DOI: 10.1016/j.gene.2020.145040] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 06/28/2020] [Accepted: 08/04/2020] [Indexed: 01/26/2023]
|
6
|
Deepthi K, Borthakur BJ, Swathika B, Ganesan S. Assessment of the viability of human periodontal ligament cells in black tea, lime juice, and passion fruit concentrate - A comparative in vitro study. J Conserv Dent 2020; 23:42-45. [PMID: 33223640 PMCID: PMC7657423 DOI: 10.4103/jcd.jcd_253_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 06/07/2020] [Accepted: 07/27/2020] [Indexed: 11/04/2022] Open
Abstract
Background Tooth avulsion is considered as a severe form of dental trauma, causing damage to the periodontium. Hence, the preservation of healthy periodontal ligament (PDL) cells in the storage medium are pivotal for the success of replantation. Aim and Objective The aim of this study is to assess the viability of human PDL cells in black tea, lime juice, and passion fruit concentrate. Methods Human periodontal cells were cultured and stored in three experimental media - black tea, lime juice, and passion fruit concentrate and subjected to 3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide assay for 1 h and the cell viability was determined. Mean and standard deviation were statistically analyzed using one-way analysis of variance to identify the significant groups. Results The human PDL cells showed 100% viability in lime juice and passion fruit concentrate, followed by 98% viability in black tea. Conclusion Black tea, lime juice, and passion fruit concentrate can be used effectively as storage media for maintaining PDL cells viability in avulsed teeth, with 100% viability exhibited by lime juice and passion fruit concentrate.
Collapse
Affiliation(s)
- K Deepthi
- Junior Resident, Department of Conservative Dentistry and Endodontics, Mahatma Gandhi Post Graduate Institute of Dental Sciences, Puducherry, India
| | - Bikash Jyoti Borthakur
- Professor and Head of Department, Department of Conservative Dentistry and Endodontics, Mahatma Gandhi Post Graduate Institute of Dental Sciences, Puducherry, India
| | - B Swathika
- Professor, Department of Conservative Dentistry and Endodontics, Mahatma Gandhi Post Graduate Institute of Dental Sciences, Puducherry, India
| | - S Ganesan
- Professor, Department of Conservative Dentistry and Endodontics, Mahatma Gandhi Post Graduate Institute of Dental Sciences, Puducherry, India
| |
Collapse
|
7
|
Deepthi K, Sagar Kommu JV, Smitha M, Reddy YCJ. Clinical profile and outcome in a large sample of children and adolescents with obsessive-compulsive disorder: A chart review from a tertiary care center in India. Indian J Psychiatry 2018; 60:205-212. [PMID: 30166677 PMCID: PMC6102964 DOI: 10.4103/psychiatry.indianjpsychiatry_342_17] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Obsessive-compulsive disorder (OCD) is a common psychiatric illness in children and adolescents. Till date, the sample sizes in the Indian studies have been relatively small. METHODOLOGY The present study is a retrospective chart review of a large sample of children and adolescents diagnosed with OCD in a tertiary care center. OBJECTIVES The objectives of this study were to characterize the clinical profile and to evaluate outcome of OCD in children and adolescents. RESULTS Fear of contamination and washing/cleaning compulsions were the most common presenting symptoms. Most of the patients were male with two-thirds having a comorbid disorder. Major depressive disorder was the most common comorbid disorder. The rates of attention deficit hyperactivity disorder, disruptive behavioral disorders, and tic disorders were low when compared to Western studies. One-third of the patients received adequate trial of serotonin reuptake inhibitors and 36% received cognitive behavior therapy. Fifty-four percent of patients had a poor outcome with hospitalization, longer duration of illness, earlier onset of OC symptoms, and family history of OCD being the predictors of poor outcome. CONCLUSION The present study of a large sample of patients with juvenile OCD highlights the low rate of comorbid disruptive behavior disorders as reported in the earlier Indian studies and a favorable short-term outcome in approximately 56% of the patients.
Collapse
Affiliation(s)
- K Deepthi
- Department of Psychiatry, NIMHANS, Bengaluru, Karnataka, India
| | | | - M Smitha
- Department of Psychiatry, ESI Hospital, Bengaluru, Karnataka, India
| | | |
Collapse
|
8
|
K D, Yadalam U, Ranjan R, Narayan SJ. Lip repositioning, an alternative treatment of gummy smile - A case report. J Oral Biol Craniofac Res 2017; 8:231-233. [PMID: 30191115 DOI: 10.1016/j.jobcr.2017.09.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Accepted: 09/25/2017] [Indexed: 10/18/2022] Open
Abstract
The aim of present case report is to discuss surgical lip repositioning technique for the management of excessive gingival display related with vertical maxillary excess and increase mobility of the upper lip. By restricting the muscle pull by elevator lip muscles, this procedure reduces excessive gingival display during smiling. For patient, this procedure is safe, less invasive with minimal side effects and an alternative to orthognathic surgery in the correction of gummy smile.
Collapse
Affiliation(s)
- Deepthi K
- Department of Dentistry, ESIC Medical College, PGIMSR and Model Hospital, Rajajinagar, Bengaluru 560010, India
| | - Umesh Yadalam
- Department of Periodontics, Sri Rajiv Gandhi College of Dental Sciences and Hospital, Cholanagar, Hebbal, Bengaluru 560032, India
| | - Rajeev Ranjan
- Department of Periodontics and Oral Implantology, Kalinga Institute of Dental Sciences, Campus 5, KIIT University, Patia, Bhubaneswar, Odisha 751024, India
| | - Sarita Joshi Narayan
- Department of Periodontics, Sri Rajiv Gandhi College of Dental Sciences and Hospital, Cholanagar, Hebbal, Bengaluru 560032, India
| |
Collapse
|
9
|
Tadasad PG, K D, Patil S. Use of Online Social Networking Services in University Libraries: A Study of University Libraries of Karnataka, India. DJLIT 2017. [DOI: 10.14429/djlit.37.4.10498] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Social networking services have become a very powerful tool to provide library services. Over a period of time libraries are using online social networking services to make their services popular and user friendly. Social networking services like facebook, youtube, twitter, linkedin, google+, instagram have many applications that could be utilised by the libraries to provide number of services in libraries. The paper reports the use of social networking services in University libraries, based on a study of 54 university websites in Karnataka state. Method of content analysis has been adopted to study the websites. The results indicate that 53 of 54 universities (98.14%) do have their own websites in different domains. 29.62% State/Central universities are connected to Facebook. 18.51% are connected to Youtube. Very few are connected to Twitter and Linkedin. 18.51% of Universities are connected to different networking sites. It is observed that the universities libraries in the state are catching up with these technologies but many of these services are used for mere elementary purposes. The study concludes that it is time for the university libraries to exploit the services and use the optimum potentialities of these Social networking services.
Collapse
|
10
|
Golden M, Legg D, Milne D, Bharadwaj M. A, Deepthi K, Gopal M, Dokka N, Nambiar S, Ramachandra P, Santhosh U, Sharma P, Sridharan R, Sulur M, Linderberg M, Nilsson A, Sohlberg R, Kremers J, Oliver S, Patra D. The Development of a Manufacturing Route to an MCHr1 Antagonist. Org Process Res Dev 2016. [DOI: 10.1021/acs.oprd.6b00006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Michael Golden
- Pharmaceutical
Development, AstraZeneca, Silk Road Business Park, Macclesfield, U.K
| | - Danny Legg
- Pharmaceutical
Development, AstraZeneca, Silk Road Business Park, Macclesfield, U.K
| | - David Milne
- Pharmaceutical
Development, AstraZeneca, Silk Road Business Park, Macclesfield, U.K
| | - Arun Bharadwaj M.
- Pharmaceutical Development, AstraZeneca India, Hebbal, Bellary Road, Bangalore, India
| | - K. Deepthi
- Pharmaceutical Development, AstraZeneca India, Hebbal, Bellary Road, Bangalore, India
| | - Madan Gopal
- Pharmaceutical Development, AstraZeneca India, Hebbal, Bellary Road, Bangalore, India
| | - Nagaraju Dokka
- Pharmaceutical Development, AstraZeneca India, Hebbal, Bellary Road, Bangalore, India
| | - Sudhir Nambiar
- Pharmaceutical Development, AstraZeneca India, Hebbal, Bellary Road, Bangalore, India
| | - Puranik Ramachandra
- Pharmaceutical Development, AstraZeneca India, Hebbal, Bellary Road, Bangalore, India
| | - U. Santhosh
- Pharmaceutical Development, AstraZeneca India, Hebbal, Bellary Road, Bangalore, India
| | - Parhalad Sharma
- Pharmaceutical Development, AstraZeneca India, Hebbal, Bellary Road, Bangalore, India
| | - R. Sridharan
- Pharmaceutical Development, AstraZeneca India, Hebbal, Bellary Road, Bangalore, India
| | - Manjunatha Sulur
- Pharmaceutical Development, AstraZeneca India, Hebbal, Bellary Road, Bangalore, India
| | | | | | | | - John Kremers
- Process R&D, Albany Molecular Research (U.K.) Ltd., Mostyn Road, Holywell, Flintshire CH8 9DN, U.K
| | - Samuel Oliver
- Process R&D, Albany Molecular Research (U.K.) Ltd., Mostyn Road, Holywell, Flintshire CH8 9DN, U.K
| | - Debasis Patra
- Process R&D, Albany Molecular Research, Inc., 26 Corporate Circle, P.O. Box 15098, Albany, New York 12203, United States
| |
Collapse
|
11
|
P V R, Vemisetty H, K D, Reddy S J, D R, Krishna M JN, Malathi G. Comparative Evaluation of Marginal Adaptation of Biodentine(TM) and Other Commonly Used Root End Filling Materials-An Invitro Study. J Clin Diagn Res 2014; 8:243-5. [PMID: 24783148 DOI: 10.7860/jcdr/2014/7834.4174] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2013] [Accepted: 12/04/2013] [Indexed: 11/24/2022]
Abstract
AIM The purpose of this investigation was to evaluate the marginal adaptation of three root-end filling materials Glass ionomer cement, Mineral trioxide aggregate and Biodentine(TM). METHODOLOGY Thirty human single-rooted teeth were resected 3 mm from the apex. Root-end cavities were then prepared using an ultrasonic tip and filled with one of the following materials Glass ionomer cement (GIC), Mineral trioxide aggregate (MTA) and a bioactive cement Biodentine(TM). The apical portions of the roots were then sectioned to obtain three 1 mm thick transversal sections. Confocal laser scanning microscopy (CLSM) was used to determine area of gaps and adaptation of the root-end filling materials with the dentin. The Post hoc test, a multiple comparison test was used for statistical data analysis. RESULTS Statistical analysis showed lowest marginal gaps (11143.42±967.753m2) and good marginal adaptation with Biodentine(TM) followed by MTA (22300.97±3068.883m(2)) and highest marginal gaps with GIC (33388.17±12155.903m(2)) which were statistically significant (p<0.0001). CONCLUSION A new root end filling material Biodentine(TM) showed better marginal adaptation than commonly used root end filling materials.
Collapse
Affiliation(s)
- Ravichandra P V
- Professor and HOD, Department of Conservative Dentistry and Endodontics, Kamineni Institute of Dental Sciences , India
| | - Harikumar Vemisetty
- Professor, Department of Conservative Dentistry and Endodontics, Kamineni Institute of Dental Sciences , India
| | - Deepthi K
- Consulting Endodontist, Vasan Dental Care , India
| | - Jayaprada Reddy S
- Professor, Department of Conservative Dentistry and Endodontics, Kamineni Institute of Dental Sciences , India
| | - Ramkiran D
- Senior Lecturer, Department of Conservative Dentistry and Endodontics, Kamineni Institute of Dental Sciences , India
| | - Jaya Nagendra Krishna M
- Reader, Department of Conservative Dentistry and Endodontics, Kamineni Institute of Dental Sciences , India
| | - Gita Malathi
- Senior Lecturer, Department of Periodontics, S.V.S Institute of Dental Sciences , India
| |
Collapse
|
12
|
Muthulakshmi AL, Natesan U, Ferrer VA, Deepthi K, Venugopalan VP, Narasimhan SV. A novel technique to monitor thermal discharges using thermal infrared imaging. Environ Sci Process Impacts 2013; 15:1729-1734. [PMID: 23839171 DOI: 10.1039/c3em00081h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Coastal temperature is an important indicator of water quality, particularly in regions where delicate ecosystems sensitive to water temperature are present. Remote sensing methods are highly reliable for assessing the thermal dispersion. The plume dispersion from the thermal outfall of the nuclear power plant at Kalpakkam, on the southeast coast of India, was investigated from March to December 2011 using thermal infrared images along with field measurements. The absolute temperature as provided by the thermal infrared (TIR) images is used in the Arc GIS environment for generating a spatial pattern of the plume movement. Good correlation of the temperature measured by the TIR camera with the field data (r(2) = 0.89) make it a reliable method for the thermal monitoring of the power plant effluents. The study portrays that the remote sensing technique provides an effective means of monitoring the thermal distribution pattern in coastal waters.
Collapse
Affiliation(s)
- A L Muthulakshmi
- Centre for Water Resources, Anna University, Chennai, Tamil Nadu - 600 025, India
| | | | | | | | | | | |
Collapse
|
13
|
Natesan U, Thulasiraman N, Deepthi K, Kathiravan K. Shoreline change analysis of Vedaranyam coast, Tamil Nadu, India. Environ Monit Assess 2013; 185:5099-5109. [PMID: 23054290 DOI: 10.1007/s10661-012-2928-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2012] [Accepted: 09/27/2012] [Indexed: 06/01/2023]
Abstract
The coastal zone is one of the nation's greatest environmental and economic assets. The present research aims at studying the shoreline changes along Vedaranyam coast using conventional and modern techniques including field sampling, remote sensing, and geographical information system (GIS). The study area was divided into three zones. Dynamic Land/Sea polygon analysis was performed to obtain the shore line changes at different time periods between 1930 and 2005. From the multidate shoreline maps, the rate of shoreline change was computed using linear regression rate and end point rate. Further, the shoreline was classified into eroding, accreting, and stable regions through GIS analysis. The eroding, accreting, and stable coastal stretch along Vedaranyam is observed as 18 %, 80.5 %, and 1.5 %, respectively. Net shoreline movement is seaward, i.e., the coast is progressive with an average rate of 5 m/year. A maximum shoreline displacement of 1.3 km towards the sea is observed near Point Calimere. During the Asian Tsunami 2004, the eastern part of the study area showed high erosion. Sediment transport paths derived from the grain size analysis of beach sediments collected during different seasons help to identify the major sediment source and sinks. Point Calimere acts as the major sink for sediments whereas Agastiyampalli and Kodiakkarai are found to be the major sources for the sediment supply along the Vedaranyam coast. Shoreline change study from field and satellite data using GIS analysis confirms that Vedaranyam coast is accreting in nature.
Collapse
Affiliation(s)
- Usha Natesan
- Centre for Water Resources, Anna University, Chennai 600 025, India.
| | | | | | | |
Collapse
|
14
|
Manohar SM, Vaikasuvu SR, Deepthi K, Sachan A, Narasimha SRPVL. An association of hyperglycemia with plasma malondialdehyde and atherogenic lipid risk factors in newly diagnosed Type 2 diabetic patients. J Res Med Sci 2013; 18:89-93. [PMID: 23914207 PMCID: PMC3724384] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2011] [Revised: 01/06/2013] [Accepted: 01/23/2013] [Indexed: 10/25/2022]
Abstract
BACKGROUND Oxidative stress (OS) generated by hyperglycemia, is one of the major focuses of recent research related to diabetes mellitus. Studying associations between hyperglycemia, OS and atherogenic dyslipidemia (AD) is therefore important. MATERIALS AND METHODS Plasma was obtained form a total of 52 subjects with newly diagnosed Type 2 diabetes mellitus (T2DM) and 52 healthy controls to study associations between hyperglycemia, lipid risk factors for atherogenicity and malondialdehyde (MDA), a lipid peroxidation product. Ferric reducing ability of plasma (FRAP) was evaluated as a measure of total antioxidant capacity (TAC). RESULTS Diabetic patients had significantly higher (P < 0.05) plasma triglycerides (TG)), very-low-density lipoprotein cholesterol (VLDL-C), TG to high-density lipoprotein cholesterol ratio (TG/HDL-C), atherogenic index (AI), and MDA. Whereas FRAP levels were depleted significantly in the patients compared to that of controls (P = 0.000). Pearson correlation analyses showed MDA correlates significantly with Fasting blood sugar (r = 0.39, P = 0.004), TG/HDL-C (r = 0.45, P = 0.001), and AI (r = 0.40, P = 0.003), and a significant negative correlation with LDL-C (r = -0.33, P = 0.019) which was lost upon nullifying the effect of FBS by partial correlation analysis (r = -0.28, P = 0.050). Receiver operating curve (ROC) analysis showed high Area under curve for TG/HDL-C and AI (0.62; P = 0.03). CONCLUSION Hyperglycemia of diabetes is associated with elevated levels of plasma MDA. This study suggests that TG/HDL-C and AI may be particularly useful as atherogenic risk predictors in newly diagnosed patients with T2DM.
Collapse
Affiliation(s)
- Suchitra Mustur Manohar
- Department of Biochemistry, SV Institute of Medical Sciences, SVIMS University, Tirupati, Andra Pradesh, India,Address for correspondence: Dr. Suchitra MM, Department of Biochemistry, SVIMS, Tirupati, Aandra Pradesh, India. E-mail:
| | - Seshadri Reddy Vaikasuvu
- Department of Biochemistry, SV Institute of Medical Sciences, SVIMS University, Tirupati, Andra Pradesh, India
| | - K Deepthi
- Department of Biochemistry, SV Institute of Medical Sciences, SVIMS University, Tirupati, Andra Pradesh, India
| | - Alok Sachan
- Department of Endocrinology, SV Institute of Medical Sciences, SVIMS University, Tirupati, Andra Pradesh, India
| | | |
Collapse
|
15
|
Ertan A, Sharma P, Nagaraju D, Deepthi K, Manjunatha SG. (2 R)-4-[(9 H-Fluoren-9-ylmethoxy)carbonyl]-2-methylpiperazin-1-ium chloride. Acta Crystallogr Sect E Struct Rep Online 2011; 67:o3386-7. [PMID: 22199876 PMCID: PMC3239028 DOI: 10.1107/s1600536811048306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2011] [Accepted: 11/14/2011] [Indexed: 11/10/2022]
|
16
|
Abstract
Aim: The biological mechanism(s) that guide the immunological effectors of lymphocytes to sites of inflammatory response, a feature consistently seen in oral submucous fibrosis (OSF) was evaluated. It is envisaged that endothelial/lymphocyte adhesion cascades involving VCAM-1/α4β1 integrins control the migration of lymphocytes across the vascular endothelium resulting in their homing in these locales. Materials and Methods: The study group comprised 28 OSF cases (M:F = 12:16, age range 18-65 years; mean 55.4 ± 8.5 SD) divided into early (n=17) and advanced (n=11) disease groups. Biopsy specimens of normal buccal mucosa (site compatible) were obtained from 10 healthy volunteers (age and sex matched) who served as control. All the samples were fixed in 10% neutral-buffered formalin and embedded in paraffin. Immunolocalization of β1 subunit associated with α4 integrin was performed by a mouse heterodimer (clone 4B7R, Ig G, R & D Systems Inc., dilution 1:100) using a peroxidase labeled streptavidin–biotin technique. The immunocompetent cell density was expressed as the number of positive cells per mm2. The Mann–Whitney U-test and Fischer exact test were used to evaluate differences. P<0.05 was considered to be significant. Results: The median percentage of “T” lymphocytes with positive integrin α4β1 expression was 77.7 (an interquartile range of 73.3–83.4) for the test cases and for the controls, it was 28.2 (IQR 24.0–38.3). This difference was significant at 0.001 level. For the endothelial cells the positive expression was 82.8 (IQR 77–90.6) and 22.3 (IQR 18.3–29.2) respectively (P<0.001). When the intensity of integrin expression was considered 26/28 cases (96%) and 2/10 (20%) of controls showed intense expression of integrins α4β1 on T lymphocytes (P<0.001). Similarly, 27/28 cases (92.9%) and 2/10 (20%) of controls showed intense expression on endothelial cells (P<0.001). T lymphocyte–endothelial cell interactions were assessed by evaluating the overexpression of integrins on both the endothelial cells and lymphocytes together. The interaction was positive in 15/17 and 11/11 early and advanced OSF cases respectively (P=0.51). Conclusion: Following leukocyte activation, the interaction between leukocyte integrin heterodimers and endothelial superfamily adhesion ligands results in a firm adherence of leukocytes to endothelium, leading to leukocyte migration and homing to sites of mucosal inflammation consistently seen in OSF.
Collapse
Affiliation(s)
- R Rajendran
- Departments of Oral Medicine and Diagnostic Science, College of Dentistry, King Saud University, Riyadh, Saudi Arabia
| | | | | | | |
Collapse
|
17
|
Deepthi K, Rajput YS. Effect of 65 kDa Buffalo Placental Protein on B-Cell Proliferation and Antibody Response. Asian Australas J Anim Sci 2005. [DOI: 10.5713/ajas.2002.432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|