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Rafi Ahamed S, Suppuraj P, Balakrishnan C, Kalpana S. Physicochemical Analytical Studies on Yttrium‐Doped Triglycine Sulfate Single Crystals. Cryst Res Technol 2023. [DOI: 10.1002/crat.202200225] [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] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- S. Rafi Ahamed
- Department of Physics Academy of Maritime Education and Training (AMET) Kanathur Chennai Tamil Nadu 603112 India
| | - P. Suppuraj
- Department of Chemistry Erode Sengunthar Engineering College Erode Tamil Nadu 638057 India
| | - C. Balakrishnan
- Department of Chemistry Erode Sengunthar Engineering College Erode Tamil Nadu 638057 India
| | - S. Kalpana
- Department of Physics Saveetha Engineering College Thandalam Chennai Tamil Nadu 602105 India
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Rajasekaran M, Kumaresan P, Nithiyanantham S, Subramanian VK, Kalpana S. Photo-Electrocatalytic Applications of Pure and Bismuth Doped Zinc Oxide Thin Films by Spray Pyrolysis. Chemistry Africa 2022. [DOI: 10.1007/s42250-021-00300-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Vijayasekaran D, Kalpana S. COVID-19 Pandemic: The Way Forward - Correspondence. Indian J Pediatr 2021; 88:630. [PMID: 33146885 PMCID: PMC7610164 DOI: 10.1007/s12098-020-03553-z] [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] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Accepted: 10/18/2020] [Indexed: 11/17/2022]
Affiliation(s)
- D Vijayasekaran
- Department of Pediatric Pulmonology, Institute of Child Health and Hospital for Children, Chennai, Tamil Nadu, India
| | - S Kalpana
- Department of Pediatric Pulmonology, Institute of Child Health and Hospital for Children, Chennai, Tamil Nadu, India.
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Ramachandran S, Dash CS, Thamilselvan A, Kalpana S, Sundararajan M. Rapid Synthesis and Characterization of Pure and Cobalt Doped Zinc Aluminate Nanoparticles via Microwave Assisted Combustion Method. J Nanosci Nanotechnol 2020; 20:2382-2388. [PMID: 31492251 DOI: 10.1166/jnn.2020.17314] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Zn1-xCoxAl₂O₄ (0 ≤ x ≤ 0.5) nanoparticles were synthesized employing L-alanine as fuel using MACT (microwave assisted combustion technique). The synthesized samples were characterized following methods such as X-ray Diffraction, high resolution scanning electron microscopy, Energydispersive X-ray spectroscopy; UV-visible diffused reflectance spectroscopy, FT-IR and VSM. The XRD confirmed the cubic spinel structure and the average crystallite size observed lying in the range of 12-19 nm deduced using the Debye Scherrer's equation. The morphology of the Zn1-xCoxAl₂O₄ (0 ≤ x ≤ 0.5) nanoparticles is observed using HR-SEM. EDX analysis is opted for the elemental mapping of pure and cobalt doped zinc aluminate nanoparticles. Further band gap value was calculated using Kubelka Munk function, which was seen lying within 3.73 to 5.45 eV. The strong absorption band at 669, 556 and 500 cm-1 was associated with the vibrations of Zn-O, Al-O and Zn-O-Al of zinc aluminate nanoparticles. The hysteresis loops exhibited conversion from diamagnetic into super paramagnetic behaviour with increase in Co doping.
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Affiliation(s)
- S Ramachandran
- Department of Physics, Arignar Anna College (Arts & Science), Krishnagiri 635115, Tamilnadu, India
| | - Chandra Sekhar Dash
- Department of Electronics and Communication Engineering, Centurion University of Technology and Management, Bhubaneswar 752050, India
| | - A Thamilselvan
- Electro-Organic Division, CSIR-Central Electrochemical Research Institute, Karaikudi 630003, India
| | - S Kalpana
- Department of Physics, Arignar Anna College (Arts & Science), Krishnagiri 635115, Tamilnadu, India
| | - M Sundararajan
- PG and Research Department of Physics, Paavendhar College of Arts & Science, M.V. South, Attur, Salem 636121, Tamilnadu, India
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Jeyachitra R, Kalpana S, Senthil TS, Kang M. Electrical behavior and enhanced photocatalytic activity of (Ag, Ni) co-doped ZnO nanoparticles synthesized from co-precipitation technique. Water Sci Technol 2020; 81:1296-1307. [PMID: 32597415 DOI: 10.2166/wst.2020.230] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Methylene blue (MB) dye is the most common harmful, toxic, and non-biodegradable effluent produced by the textile industries. The present study investigates the effect of zinc oxide (ZnO) nanoparticles (NPs) and Ag-Ni doped ZnO NPs on the performance of photocatalytic degradation of MB dye. Pure ZnO and Ag-Ni doped ZnO NPs are synthesized using the co-precipitation method. The crystalline nature and surface morphology of the synthesized pure ZnO and Ag-Ni doped ZnO NPs was characterized by powder X-ray diffraction, scanning electron microscopy (SEM), and high resolution transmission electron microscopy (HRTEM) analysis. The presence of spherical-like morphologies was confirmed from SEM and HRTEM analysis. The presence of Ni-O and Zn-O bands in the synthesized materials was found by Fourier transform infrared (FTIR) spectroscopy analysis. The MB dye was degraded under UV-light exposure in various pH conditions. The Ag (0.02%)-Ni doped ZnO NPs exhibits highest photocatalytic activity of 77% under pH 4.
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Affiliation(s)
- R Jeyachitra
- Department of Physics, Kalaignar Karunanidhi Institute of Technology, Coimbatore 641402, India
| | - S Kalpana
- Department of Physics, AMET University, Kanathur, Chennai 603 112, India
| | - T S Senthil
- Department of Physics, Erode Sengunthar Engineering College, Perundurai, Erode 638057, India E-mail:
| | - Misook Kang
- Department of Chemistry, College of Natural Sciences, Yeungnam University, Gyeongsan, Gyeongbuk 38541, Republic of Korea
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Vignesh Kumar B, Backiyarani S, Chandrasekar A, Saranya S, Ramajayam D, Saraswathi MS, Durai P, Kalpana S, Uma S. Strengthening of banana breeding through data digitalization. Database (Oxford) 2020; 2020:5818927. [PMID: 32283556 PMCID: PMC7153955 DOI: 10.1093/database/baz145] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 08/12/2019] [Accepted: 12/06/2019] [Indexed: 11/16/2022]
Abstract
Improvement of edible bananas (a triploid and sterile crop) through conventional breeding is a challenging task owing to its recalcitrant nature for seed set, prolonged crop duration. In addition, the need of huge man power at different stages of progeny development and evaluation often leads to mislabeling, poor data management and loss of vital data. All this can be overcome by the application of advanced information technology source. This ensured secure and efficient data management such as storage, retrieval and data analysis and further could assist in tracking the breeding status in real time. Thus, a user-friendly web-based banana breeding tracker (BBT) has been developed using MySQL database with Hypertext Preprocessor (PHP). This BBT works on all operating systems with access to multiple users from anywhere at any time. Quick responsive (QR) code labels can be generated by the tracker, which can be decoded using QR scanner. Also for each and every updated progress in breeding stages, a new QR code can be generated, which in turn reduce labeling errors. Moreover, the tracker has additional tools to search, sort and filter the data from the data sets for efficient retrieval and analysis. This tracker is being upgraded with phenotypic and genotypic data that will be made available in the public domain for hastening the banana improvement program.
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Affiliation(s)
- B Vignesh Kumar
- Crop Improvement Division, Indian Council of Agricultural Research - National Research Centre for Banana, Thogamalai Road, Thayanur Post, Tiruchirapalli - 620 102, Tamil Nadu, India
| | - S Backiyarani
- Crop Improvement Division, Indian Council of Agricultural Research - National Research Centre for Banana, Thogamalai Road, Thayanur Post, Tiruchirapalli - 620 102, Tamil Nadu, India
| | - A Chandrasekar
- Crop Improvement Division, Indian Council of Agricultural Research - National Research Centre for Banana, Thogamalai Road, Thayanur Post, Tiruchirapalli - 620 102, Tamil Nadu, India
| | - S Saranya
- Crop Improvement Division, Indian Council of Agricultural Research - National Research Centre for Banana, Thogamalai Road, Thayanur Post, Tiruchirapalli - 620 102, Tamil Nadu, India
| | - D Ramajayam
- Crop Improvement Division, Indian Council of Agricultural Research - National Research Centre for Banana, Thogamalai Road, Thayanur Post, Tiruchirapalli - 620 102, Tamil Nadu, India
| | - M S Saraswathi
- Crop Improvement Division, Indian Council of Agricultural Research - National Research Centre for Banana, Thogamalai Road, Thayanur Post, Tiruchirapalli - 620 102, Tamil Nadu, India
| | - P Durai
- Crop Improvement Division, Indian Council of Agricultural Research - National Research Centre for Banana, Thogamalai Road, Thayanur Post, Tiruchirapalli - 620 102, Tamil Nadu, India
| | - S Kalpana
- Crop Improvement Division, Indian Council of Agricultural Research - National Research Centre for Banana, Thogamalai Road, Thayanur Post, Tiruchirapalli - 620 102, Tamil Nadu, India
| | - S Uma
- Crop Improvement Division, Indian Council of Agricultural Research - National Research Centre for Banana, Thogamalai Road, Thayanur Post, Tiruchirapalli - 620 102, Tamil Nadu, India
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Kalpana S, Priyadarshini S, Maria Leena M, Moses J, Anandharamakrishnan C. Intelligent packaging: Trends and applications in food systems. Trends Food Sci Technol 2019. [DOI: 10.1016/j.tifs.2019.09.008] [Citation(s) in RCA: 168] [Impact Index Per Article: 33.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Kalpana S, Balaji BS. Aspiration of Rear End of Pen in Children,Management Issues. Indian Pediatr 2016; 53:936. [PMID: 27771691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Affiliation(s)
- S Kalpana
- Department of Pulmonology, Institute of Child Health and Hospital for Children, Egmore, Chennai 600 008, India.
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Abstract
BACKGROUND Hajj pilgrimage, in Saudi Arabia, is one of the world's largest religious mass gatherings. We have similar mass gathering scenarios in India such as the Amarnath Yatra and Kumbh. A unique combination of physical, physiological, and psychological factors makes this pilgrimage a very stressful milieu. We studied the emergence of psychopathology and its determinants, in this adverse environment in mass gathering situation, in Indian pilgrims on Hajj 2016. MATERIALS AND METHODS This is a descriptive study analyzing the mental morbidity in 1.36 lakh Indian pilgrims during Hajj 2016, using SPSS software version 19. RESULTS Totally 182 patients reported psychological problems. Twenty-two patients (12%) required admission. Twelve (6.8%) pilgrims reported a past history of a mental illness. One hundred and sixty-five (93.2%) patients never had any mental symptoms earlier in life. The most common illnesses seen were stress related (45.7%) followed by psychosis (9.8%), insomnia (7.3%), and mood disorders (5.6%). The most common symptoms recorded were apprehension (45%), sleep (55%), anxiety (41%), and fear of being lost (27%). Psychotropics were prescribed for 46% of pilgrims. All patients completed their Hajj successfully and returned to India. CONCLUSIONS Cumulative stress causes full spectrum of mental decompensation, and prompt healing is aided by simple nonpharmacological measures including social support and counseling in compatible sociolinguistic milieu.
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Affiliation(s)
- Shahbaz Ali Khan
- Department of Psychiatry, Base Hospital Delhi Cantt, New Delhi, India
| | - V. S. Chauhan
- Department of Psychiatry, Base Hospital Delhi Cantt, New Delhi, India
| | - A. Timothy
- Department of Psychiatry, Base Hospital Delhi Cantt, New Delhi, India
| | - S. Kalpana
- Department of Psychiatry, Armed Forces Medical College, Pune, Maharashtra, India
| | - Shagufta Khanam
- Department of Psychiatry, VKS University, Patna, Bihar, India
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Kalpana S, Sarath Balaji B. Pulmonary infection by rapidly growing mycobacterium in an immunocompetent child. Indian Pediatr 2014; 51:223-4. [DOI: 10.1007/s13312-014-0355-6] [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: 10/25/2022]
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Gupta AK, Kalpana S, Malik JK. Synthesis and in vitro antioxidant activity of new 3-substituted-2-oxindole derivatives. Indian J Pharm Sci 2013; 74:481-6. [PMID: 23716882 PMCID: PMC3660880 DOI: 10.4103/0250-474x.108445] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [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: 11/10/2011] [Revised: 10/11/2012] [Accepted: 10/25/2012] [Indexed: 11/19/2022] Open
Abstract
A series of new 1,3-dihydro-3-hydroxy-3-(2-phenyl-2-oxoethyl)-2H-indol-2-ones (1a-g) and 1,3-dihydro-3-(2-phenyl-2-oxoethylidene)-2H-indol-2-ones (2a-g) were synthesised by Knoevenagel condensation of substituted indole-2,3-diones (isatins) with various acetophenones. The synthesised compounds were characterised by their physical data, elemental, IR, 1H NMR, 13C NMR and mass spectral analyses and their in vitro antioxidant activity was determined by 2,2-diphenyl-1-picrylhydrazyl free radical scavenging assay. These compounds showed moderate to good antioxidant activities as compared with the standard, ascorbic acid. The antioxidant potential of 3-hydroxy-3-substituted oxindoles (1a-g) increased in a concentration-dependent manner from 10 to 500 μg/ml with 5-fluoro and 5-methyl analogues showing maximum activity. Of 3-aroyl methylene indol-2-ones (2a-g), majority of compounds with halogen substitution at position 5 of isatin ring exhibited good antioxidant activity within a concentration range of 5-100 μg/ml and the maximum activity was observed at 20 and 25 μg/ml concentrations. Thus, our study provides evidence that some newly synthesised isatin derivatives exhibit substantial antioxidant activity at low concentrations.
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Affiliation(s)
- A K Gupta
- Food Safety Laboratory (Drug and Chemical Residues), Indian Veterinary Research Institute, Izatnagar-243 122 India
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Premamalini T, Ambujavalli BT, Vijayakumar R, Rajyoganandh SV, Kalpana S, Kindo AJ. Fungal keratitis caused by Macrophomina phaseolina - A case report. Med Mycol Case Rep 2012; 1:123-6. [PMID: 24371757 DOI: 10.1016/j.mmcr.2012.10.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [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: 09/03/2012] [Revised: 10/11/2012] [Accepted: 10/15/2012] [Indexed: 11/25/2022] Open
Abstract
A 70 year old female patient presented with complaints of pain, watering and swelling in the right eye. She gave a history of fall, as she was walking in the paddy field of her farm. Ophthalmological and Microbiological investigation revealed a fungal keratitis with an unusual fungus Macrophomina phaseolina which is primarily a plant pathogen, with a potential to cause human infections especially in immuno-compromised patients. The patient responded well to the antifungal treatment with Oral Voriconazole with absence of recurrence and dissemination.
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Affiliation(s)
- T Premamalini
- Department of Microbiology, Sri Ramachandra Medical College & Research Institute, SRU, Chennai 600116, India
| | - B T Ambujavalli
- Department of Microbiology, Sri Ramachandra Medical College & Research Institute, SRU, Chennai 600116, India
| | - R Vijayakumar
- Department of Microbiology, Sri Ramachandra Medical College & Research Institute, SRU, Chennai 600116, India
| | - S V Rajyoganandh
- Department of Microbiology, Sri Ramachandra Medical College & Research Institute, SRU, Chennai 600116, India
| | - S Kalpana
- Department of Ophthalmology, Sri Ramachandra Medical College & Research Institute, SRU, Chennai 600116, India
| | - Anupma J Kindo
- Department of Microbiology, Sri Ramachandra Medical College & Research Institute, SRU, Chennai 600116, India
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Vijayasekaran D, Kalpana S, Ramachandran P, Nedunchelian K. Indications and outcome of flexible bronchoscopy in neonates. Indian J Pediatr 2012; 79:1181-4. [PMID: 22057396 DOI: 10.1007/s12098-011-0595-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2011] [Accepted: 10/04/2011] [Indexed: 10/15/2022]
Abstract
OBJECTIVE To analyse the indications, safety and outcome of flexible fiberoptic bronchoscopy (FOB) in neonates. METHODS This descriptive study was conducted in Level III neonatal unit (ICH, Chennai) and included 84 neonates with various respiratory problems admitted over a 3 y period. RESULTS The indications included stridor (18%), persistent radiological abnormalities (44%), unexplained wheeze/respiratory distress (21%) and others (17%). The mean age and weight were 25 d and 2.82 kg respectively. Bronchoscopy detected various anomalies like upper airway anomalies (10.7%), lower airway malacia (21%), synchronous airway malacias (19%) and miscellaneous anatomical abnormalities (18%). Bronchoalveolar lavage was done in 62% with microbiological yield in 54% cases.FOB helped in the revision of diagnosis in 57%. Resolution of atelectasis was observed in 13.5% cases. Except for transient hypoxemia in 2 neonates, no other complication was encountered. CONCLUSIONS Flexible bronchoscopy is safe and useful both as diagnostic and therapeutic tool in neonates with respiratory problems.
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Affiliation(s)
- D Vijayasekaran
- Department of Pediatric Pulmonology, Institute of Child Health and Hospital for Children, Egmore, Chennai, India.
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Vijayasekaran D, Kalpana S, Vivekanandan VE. Tracheobronchomalacia presenting as infantile wheeze. Indian Pediatr 2011; 48:903-904. [PMID: 22711148] [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: 06/01/2023]
Abstract
We report six months old infant with a history of recurrent wheeze, admitted for foreign body aspiration like presentation, where fibreoptic bronchoscopy revealed the diagnosis of tracheobronchomalacia.
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Affiliation(s)
- D Vijayasekaran
- Department of Pulmonology, Institute of Child Health and Hospital for Children, Egmore, Chennai, India.
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Vijayasekaran D, Gowrishankar NC, Kalpana S, Vivekanandan VE, Balakrishnan MS, Suresh S. Lower airway anomalies in infants with laryngomalacia. Indian J Pediatr 2010; 77:403-6. [PMID: 20428972 DOI: 10.1007/s12098-010-0048-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [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: 08/27/2009] [Accepted: 12/07/2009] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To study the prevalence of associated airway anomalies in infants presenting with moderate to severe laryngomalacia. METHODS Eighty three (83) symptomatic infants with recurrent respiratory symptoms including wheeze and cough diagnosed as moderate to severe laryngomalacia based on their clinical and direct laryngoscopic findings were subjected to fiberoptic bronchoscopy (FOB) during the period March 2007 to February 2009 in the Department of Pulmonology, Institute of Child Health and Hospital for Children, Chennai, India. Analysis of the clinical features, radiological findings and associated lower airway anomalies by FOB was done. RESULTS Lower airway anomalies were demonstrated in 40 (48%) infants of the study population. Tracheomalacia was the most common lower airway anomaly 24 (29%) followed by bronchomalacia 8(10%) and tracheobronchomalacia 6 (7%). (4:1:1). CONCLUSION Infants with moderate and severe laryngomalacia should be evaluated with flexible fibreoptic bronchoscopy to rule out associated lower airway lesions.
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Affiliation(s)
- D Vijayasekaran
- Department of Pulmonology, Institute of Child Health and Hospital for Children, Chennai, India.
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Doctor P, Doctor R, Kalpana S, Viswanathan S. Tear film changes after antioxidant supplementation in type 2 diabetes mellitus. Int J Diabetes Dev Ctries 2007. [DOI: 10.4103/0973-3930.34749] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Kalpana S, Muthayya M, Doctor PP. Oguchi disease. J Postgrad Med 2006; 52:143-4. [PMID: 16679684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/09/2023] Open
Affiliation(s)
- S Kalpana
- Department of Ophthalmology, Sri Ramachandra Medical College and Research Institute, Chennai 600 089, India
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Manonmani G, Bhavapriya V, Kalpana S, Govindasamy S, Apparanantham T. Antioxidant activity of Cassia fistula (Linn.) flowers in alloxan induced diabetic rats. J Ethnopharmacol 2005; 97:39-42. [PMID: 15652272 DOI: 10.1016/j.jep.2004.09.051] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2004] [Revised: 09/22/2004] [Accepted: 09/24/2004] [Indexed: 05/24/2023]
Abstract
Aqueous extract of Cassia fistula (Linn.) flowers (ACF) was screened for its antioxidant effect in alloxan induced diabetic rats. An appreciable decrease in peroxidation products viz thiobarbituric acid reactive substances, conjugated dienes, hydroperoxides was observed in heart tissues of ACF treated diabetic rats. The decreased activities of key antioxidant enzymes such as superoxide dismutase, catalase, glutathione peroxidase, glutathione reductase and glutathione in diabetic rats were brought back to near normal range upon ACF treatment. These results suggest that ACF has got promising antioxidative activity in alloxan diabetic rats.
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Affiliation(s)
- G Manonmani
- Department of Biochemistry and Molecular Biology, Guindy Campus, University of Madras, Chennai 600025, India.
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Abstract
A 65-yr-old woman presented in May 1998 with a left parotid mass of 2 yr duration. The cytology and histopathology of the parotid lesion showed features of a columnar cell carcinoma. In November, 1967, she was diagnosed to have a classic papillary thyroid carcinoma (PTC). Ultrasound examination revealed a persistent thyroid nodule, the aspiration cytology of which confirmed columnar cell variant of papillary thyroid carcinoma (CCV-PTC). CCV-PTC is a recently described rare tumor of the thyroid that has been associated with an aggressive clinical course. Our case was peculiar in that the patient presented with an isolated metastasis in the parotid gland. Second, after an indolent course following the initial diagnosis of usual PTC 31 yr ago, she had now developed a more aggressive variant of the tumor.
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Affiliation(s)
- Hema Kini
- Department of Pathology, Kasturba Medical College, Mangalore, India
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Bhavapriya V, Kalpana S, Govindasamy S, Apparanantham T. Biochemical studies on hypoglycemic effect of Aavirai kudineer: a herbal formulation in alloxan diabetic rats. Indian J Exp Biol 2001; 39:925-8. [PMID: 11831378] [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: 02/23/2023]
Abstract
Aavirai Kudineer (AK) is an herbal decoction of seven botanical drugs, cited in the Gunapadam; a Tamil Siddha medical text. The anti-diabetic efficacy of this formulation was evaluated using alloxan-induced diabetic and normal rats. Glucose tolerance was observed within 1 hr in AK-treated rats (10 ml/kg body ) as compared to control. A significant decrease in the severe hyperglycemia characteristic of alloxan diabetes was noted after 15 days of AK treatment. Further AK treatment reversed the elevated urea, creatinine, cholesterol and decreased protein values to near normal levels. Assay of glycogen content and chief carbohydrate-metabolizing enzymes, viz. hexokinase, glucose-6-phosphatase and fructose 1,6 diphosphatase in the liver of diabetic and AK-treated diabetic rats clearly ascertains the hypoglycemic efficacy of this formulation. The mode of action of this herbal formulation remains to be elucidated.
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Affiliation(s)
- V Bhavapriya
- Department of Biochemistry and Molecular Biology, University of Madras, Chennai, India
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