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Ayyappan S, Sukumar S, Chaudhari VA. Extremity Injuries in Pillion Riders of Fatal 2-Wheeler Road Traffic Accidents: An Autopsy-Based Study. Am J Forensic Med Pathol 2024:00000433-990000000-00167. [PMID: 38442253 DOI: 10.1097/paf.0000000000000923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2024]
Abstract
ABSTRACT The extremities are the important anatomical regions that are disproportionately injured during road traffic accidents in poor and medium-income countries. The data regarding extremity injuries, particularly in pillion passengers, are minimal globally. We analyzed the pattern of extremity injuries and their association with various parameters such as collision type, seating position, road type, and type of vehicle. This was a hospital-based cross-sectional study. The pillion riders of fatal motorized 2-wheeler road accident cases that were subjected to autopsy were studied over a period of 2 years. We analyzed 73 cases of pillion riders. Females (60%) were the most commonly affected group. The upper extremities were injured in 55 cases (75.3%) and the lower extremities in 49 cases (67.1%). The shoulder (41%), hand (31.3%), and elbow (23.2%) were the predominantly injured anatomical regions of the upper limb. In the lower extremity, knee (41%) and foot (21.9%) were mostly affected. Forty-nine (67.1%) and 48 (65.8%) cases had abrasions in the upper limbs and lower limbs, respectively, followed by lacerations and contusions. Upper extremity injuries are more common compared with lower extremity. The majority of the pillion riders were seated in a side-saddle position, and self-fall from the bike without any collision with other vehicles was the most common mode of injury. Thus, appropriate seating posture with safety gear can be used to reduce extremity injuries.
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Affiliation(s)
- Sathish Ayyappan
- From the Department of Forensic Medicine and Toxicology, All India Institute of Medical Sciences, Jodhpur, Rajasthan
| | - Sanjay Sukumar
- Department of Forensic Medicine and Toxicology, St John's Medical College, Bangalore, Karnataka
| | - Vinod Ashok Chaudhari
- Department of Forensic Medicine and Toxicology, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India
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Ayyappan S. The Pattern of Injuries in Riders of Fatal Motorized Two-Wheeler Road Traffic Accidents: An Autopsy Study. Am J Forensic Med Pathol 2024; 45:95. [PMID: 37669084 DOI: 10.1097/paf.0000000000000881] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/06/2023]
Affiliation(s)
- Sathish Ayyappan
- Department of Forensic Medicine and Toxicology, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India
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Ayyappan S, Shekhawat RS, Meshram VP, Kanchan T. Spontaneous retroperitoneal and intracranial hemorrhage following streptokinase therapy in acute myocardial infarction: An autopsy case report. J Forensic Sci 2024; 69:346-350. [PMID: 37904604 DOI: 10.1111/1556-4029.15418] [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: 09/04/2023] [Revised: 10/14/2023] [Accepted: 10/18/2023] [Indexed: 11/01/2023]
Abstract
Bleeding complications following thrombolytic treatment for acute myocardial infarction (AMI) are not infrequent, among which intracranial hemorrhage is commonly reported. In contrast, retroperitoneal hematoma following the administration of thrombolytics is rarely reported in the literature. We are reporting a case of a middle-aged man, who presented with left-sided chest pain and was diagnosed with acute coronary syndrome with anterior wall ST elevation AMI. The patient was administered with thrombolytic drugs, including streptokinase and heparin. Percutaneous coronary intervention in the form of Coronary angioplasty with stent insertion was done to the left anterior descending artery, given coronary artery disease. The blood investigations showed elevated activated partial thromboplastin time and prothrombin time. The patient developed vomiting, altered sensorium, and left-sided weakness, and a non-contrast computerized tomography brain was done, which showed acute hemorrhage involving the right frontal lobe with intraventricular extension, so the ventricular drain was placed. The patient developed cardiac arrest and died on the third day. On autopsy examination, the brain showed subarachnoid hemorrhage, intraparenchymal hemorrhage over the right frontal lobe, and clotted blood in all the ventricles. A retroperitoneal hematoma of around 1500 cc was seen over the left side of the peritoneal cavity. This case highlights that although intracranial hemorrhage is a known complication after administrating thrombolytic therapy, clinicians should also be aware of the possibility of retroperitoneal hemorrhage. This case emphasizes the value of an autopsy in determining the cause of death in such situations.
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Affiliation(s)
- Sathish Ayyappan
- Department of Forensic Medicine and Toxicology, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India
| | - Raghvendra Singh Shekhawat
- Department of Forensic Medicine and Toxicology, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India
| | - Vikas P Meshram
- Department of Forensic Medicine and Toxicology, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India
| | - Tanuj Kanchan
- Department of Forensic Medicine and Toxicology, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India
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Ayyappan S, N A, Toi PC. Accidental fatal poisoning in a child due to ingestion of Nerium oleander leaf. Forensic Sci Med Pathol 2023:10.1007/s12024-023-00771-7. [PMID: 38133853 DOI: 10.1007/s12024-023-00771-7] [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] [Accepted: 12/20/2023] [Indexed: 12/23/2023]
Abstract
Nerium oleander is an ornamental plant that belongs to the family Apocynaceae. It contains a cardiac glycoside named oleandrin, which is present in all parts of the oleander plant. Suicidal and medication-related deaths due to Nerium oleander poisoning are not uncommon. However, accidental deaths due to oleander leaf ingestion are most commonly encountered. We are reporting a case of an accidental ingestion of Nerium oleander leaf in a child by mistaking it for a guava leaf. The child presented to the casualty with vomiting, poor sensorium, hypotension, and shock. The child developed hyperkalemia, acute kidney injury, myocardial dysfunction, and bleeding manifestations. The urine output was decreased (< 0.5 ml/kg/h). Later, the child died after 36 h. On autopsy examination, periorbital puffiness and bluish discoloration of the nail beds were present. Petechial hemorrhages were present in the heart, kidney, and mesentery. The stomach mucosa was hemorrhagic. Histopathologically, the lung showed interstitial congestion, the liver showed centrilobular necrosis, and the kidney showed acute tubular necrosis. Toxicology analysis was positive for oleander poisoning. This case highlights the toxic nature of Nerium oleander ingestion and the importance of avoiding such plants around residential areas.
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Affiliation(s)
- Sathish Ayyappan
- Department of Forensic Medicine and Toxicology, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India.
| | - Ashok N
- Department of Forensic Medicine and Toxicology, Arunai Medical College and Hospital, Tiruvannamalai, Tamil Nadu, India
| | - Pampa Ch Toi
- Department of Pathology, Jawaharlal Institute of Postgraduate Medical Education & Research, Puducherry, India
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Ayyappan S. Skull Fracture Patterns and Morphologies among Riders of Fatal Motorcycle Accidents. Am J Forensic Med Pathol 2023:00000433-990000000-00138. [PMID: 38039506 DOI: 10.1097/paf.0000000000000898] [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] [Subscribe] [Scholar Register] [Indexed: 12/03/2023]
Affiliation(s)
- Sathish Ayyappan
- Department of Forensic Medicine and Toxicology, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India
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Meshram VP, Shekhawat RS, Ayyappan S, Rao M, Kanchan T. Homicidal electrocution disguised as an accidental death: An autopsy case report. J Forensic Sci 2023. [PMID: 37139935 DOI: 10.1111/1556-4029.15275] [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: 03/29/2023] [Revised: 04/17/2023] [Accepted: 04/26/2023] [Indexed: 05/05/2023]
Abstract
Deaths due to electrocution are mostly accidental. Homicide by electrocution is rarely reported in the literature. However, the location and pattern of the electrocution wound can raise concern for a possible homicidal manner of death. We are reporting an unusual case wherein the dead body of a middle-aged man was found lying in a suspicious condition on the roadside of desolated area. There were circumferential, grooved electrocution lesions over the left and right second toes with oval electrocution lesions on the medial aspects of both the left and right third toes. There were split lacerations over the right high parietal region, right pinna, and forehead. There was avulsion of the nail of the left thumb. Pressure abrasion was consistent with a ligature mark on the lower part of the left leg. The locations and pattern of these injuries raised the possibility of torture infliction. Death was attributed to electrocution, which was confirmed by histopathology. Autopsy findings and possible inferences were furnished to the police. This case highlights the careful observation of different characterizations and locations of the wounds and deducing inferences about the possible manner of death. This information can be useful to investigating agencies.
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Affiliation(s)
- Vikas Premlal Meshram
- Department of Forensic Medicine and Toxicology, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India
| | - Raghavendra Singh Shekhawat
- Department of Forensic Medicine and Toxicology, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India
| | - Sathish Ayyappan
- Department of Forensic Medicine and Toxicology, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India
| | - Meenakshi Rao
- Department of Pathology and Lab Medicine, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India
| | - Tanuj Kanchan
- Department of Forensic Medicine and Toxicology, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India
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Nithya R, Ayyappan S. Novel exfoliated graphitic-C3N4 hybridised ZnBi2O4 (g-C3N4/ZnBi2O4) nanorods for catalytic reduction of 4-Nitrophenol and its antibacterial activity. J Photochem Photobiol A Chem 2020. [DOI: 10.1016/j.jphotochem.2020.112591] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Maakaron J, Zhao Q, Puto M, Von Derau R, Robinson J, Brammer J, Penza S, Baiocchi R, Christian B, Maddocks K, Saad A, Wall S, Benson D, Efebera Y, Rosko A, Ayyappan S, Grieselhuber N, Vasu S, Larkin K, Epperla N, Devarakonda S, Choe H, Chaudhry M, Blaser B, Blachly J, Bhatnagar B, Alinari L, Mims A, Jaglowski S, William B. PHASE I DOSE-ESCALATION STUDY OF VENETOCLAX PLUS BEAM FOLLOWED BY AUTOLOGOUS STEM CELL TRANSPLANT (ASCT) FOR CHEMORESISTANT, RELAPSED/REFRACTORY, OR HIGH-RISK NON-HODGKIN'S LYMPHOMA (NHL); PRELIMINARY RESULTS. Hematol Oncol 2019. [DOI: 10.1002/hon.213_2631] [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] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- J. Maakaron
- Hematology; The Ohio State University; Columbus United States
| | - Q. Zhao
- Hematology; The Ohio State University; Columbus United States
| | - M. Puto
- Hematology; The Ohio State University; Columbus United States
| | - R. Von Derau
- Hematology; The Ohio State University; Columbus United States
| | - J. Robinson
- Hematology; The Ohio State University; Columbus United States
| | - J. Brammer
- Hematology; The Ohio State University; Columbus United States
| | - S. Penza
- Hematology; The Ohio State University; Columbus United States
| | - R. Baiocchi
- Hematology; The Ohio State University; Columbus United States
| | - B. Christian
- Hematology; The Ohio State University; Columbus United States
| | - K. Maddocks
- Hematology; The Ohio State University; Columbus United States
| | - A. Saad
- Hematology; The Ohio State University; Columbus United States
| | - S. Wall
- Hematology; The Ohio State University; Columbus United States
| | - D. Benson
- Hematology; The Ohio State University; Columbus United States
| | - Y. Efebera
- Hematology; The Ohio State University; Columbus United States
| | - A. Rosko
- Hematology; The Ohio State University; Columbus United States
| | - S. Ayyappan
- Hematology; The Ohio State University; Columbus United States
| | - N. Grieselhuber
- Hematology; The Ohio State University; Columbus United States
| | - S. Vasu
- Hematology; The Ohio State University; Columbus United States
| | - K. Larkin
- Hematology; The Ohio State University; Columbus United States
| | - N. Epperla
- Hematology; The Ohio State University; Columbus United States
| | - S. Devarakonda
- Hematology; The Ohio State University; Columbus United States
| | - H. Choe
- Hematology; The Ohio State University; Columbus United States
| | - M. Chaudhry
- Hematology; The Ohio State University; Columbus United States
| | - B. Blaser
- Hematology; The Ohio State University; Columbus United States
| | - J. Blachly
- Hematology; The Ohio State University; Columbus United States
| | - B. Bhatnagar
- Hematology; The Ohio State University; Columbus United States
| | - L. Alinari
- Hematology; The Ohio State University; Columbus United States
| | - A. Mims
- Hematology; The Ohio State University; Columbus United States
| | - S. Jaglowski
- Hematology; The Ohio State University; Columbus United States
| | - B.M. William
- Hematology; The Ohio State University; Columbus United States
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William B, Abbasi A, Huang Y, Larbi R, Giali R, Yang L, Brammer J, Grantier C, Hoffman C, Ayyappan S, Baiocchi R, Epperla N, Christian B, Alinari L, Maddocks K, Chung C. A PHASE II TRIAL OF BRENTUXIMAB VEDOTIN (BV) AND LENALIDOMIDE (LEN) IN RELAPSED AND REFRACTORY (R/R) CUTANEOUS (CTCL) AND PERIPHERAL (PTCL) T-CELL LYMPHOMAS: PRELIMINARY RESULTS OF A PHASE II TRIAL. Hematol Oncol 2019. [DOI: 10.1002/hon.150_2631] [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] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- B.M. William
- Hematology; The Ohio State University; Columbus United States
| | - A. Abbasi
- Hematology; The Ohio State University; Columbus United States
| | - Y. Huang
- Hematology; The Ohio State University; Columbus United States
| | - R. Larbi
- Hematology; The Ohio State University; Columbus United States
| | - R. Giali
- Hematology; The Ohio State University; Columbus United States
| | - L. Yang
- Hematology; The Ohio State University; Columbus United States
| | - J. Brammer
- Hematology; The Ohio State University; Columbus United States
| | - C. Grantier
- Hematology; The Ohio State University; Columbus United States
| | - C. Hoffman
- Hematology; The Ohio State University; Columbus United States
| | - S. Ayyappan
- Hematology; The Ohio State University; Columbus United States
| | - R. Baiocchi
- Hematology; The Ohio State University; Columbus United States
| | - N. Epperla
- Hematology; The Ohio State University; Columbus United States
| | - B. Christian
- Hematology; The Ohio State University; Columbus United States
| | - L. Alinari
- Hematology; The Ohio State University; Columbus United States
| | - K. Maddocks
- Hematology; The Ohio State University; Columbus United States
| | - C. Chung
- Dermatology; The Ohio State University; Columbus United States
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Pookunju AP, Ayyappan S. Technique of Laparoscopic Hysterectomy and Pelvic Lymphadenectomy for Endometrial Cancer. Indian J Surg Oncol 2018; 9:290-293. [PMID: 29887724 PMCID: PMC5984843 DOI: 10.1007/s13193-017-0690-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2016] [Accepted: 08/01/2017] [Indexed: 11/25/2022] Open
Affiliation(s)
- Ansar Pullampara Pookunju
- Department of Surgical Oncology, Apollo Cancer Institute, Chennai, Tamilnadu India
- Division of Surgical Oncology, Department of General Surgery, Sree Gokulam Medical College and Research Foundation, Venjaramoodu, Trivandrum, Kerala 695607 India
| | - S. Ayyappan
- Department of Surgical Oncology, Apollo Cancer Institute, Chennai, Tamilnadu India
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Lakra WS, Singh M, Goswami M, Gopalakrishnan A, Lal KK, Mohindra V, Sarkar UK, Punia PP, Singh KV, Bhatt JP, Ayyappan S. DNA barcoding Indian freshwater fishes. Mitochondrial DNA A DNA Mapp Seq Anal 2015; 27:4510-4517. [PMID: 26703324 DOI: 10.3109/19401736.2015.1101540] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
DNA barcoding is a promising technique for species identification using a short mitochondrial DNA sequence of cytochrome c oxidase I (COI) gene. In the present study, DNA barcodes were generated from 72 species of freshwater fish covering the Orders Cypriniformes, Siluriformes, Perciformes, Synbranchiformes, and Osteoglossiformes representing 50 genera and 19 families. All the samples were collected from diverse sites except the species endemic to a particular location. Species were represented by multiple specimens in the great majority of the barcoded species. A total of 284 COI sequences were generated. After amplification and sequencing of 700 base pair fragment of COI, primers were trimmed which invariably generated a 655 base pair barcode sequence. The average Kimura two-parameter (K2P) distances within-species, genera, families, and orders were 0.40%, 9.60%, 13.10%, and 17.16%, respectively. DNA barcode discriminated congeneric species without any confusion. The study strongly validated the efficiency of COI as an ideal marker for DNA barcoding of Indian freshwater fishes.
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Affiliation(s)
- Wazir Singh Lakra
- a Central Institute of Fisheries Education , Versova , Mumbai , India
| | - M Singh
- b National Bureau of Fish Genetic Resources , Lucknow , India
| | - Mukunda Goswami
- a Central Institute of Fisheries Education , Versova , Mumbai , India
| | | | - K K Lal
- b National Bureau of Fish Genetic Resources , Lucknow , India
| | - V Mohindra
- b National Bureau of Fish Genetic Resources , Lucknow , India
| | - U K Sarkar
- b National Bureau of Fish Genetic Resources , Lucknow , India
| | - P P Punia
- b National Bureau of Fish Genetic Resources , Lucknow , India
| | - K V Singh
- b National Bureau of Fish Genetic Resources , Lucknow , India
| | - J P Bhatt
- c Department of Zoology and Biotechnology , HNB Garhwal University , Uttarakhand , India , and
| | - S Ayyappan
- d Indian Council of Agricultural Research , New Delhi , India
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Darsana R, Chandrasehar G, Deepa V, Gowthami Y, Chitrikha T, Ayyappan S, Goparaju A. Acute Toxicity Assessment of Reactive Red 120 to Certain Aquatic Organisms. Bull Environ Contam Toxicol 2015; 95:582-587. [PMID: 26350898 DOI: 10.1007/s00128-015-1636-z] [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] [Subscribe] [Scholar Register] [Received: 10/26/2014] [Accepted: 08/18/2015] [Indexed: 06/05/2023]
Abstract
Laboratory experiments were conducted to evaluate the acute toxicity of a widely used textile dye namely Reactive Red 120 (RR 120) on certain aquatic species such as Pseudokirchneriella subcapitata (green alga), Lemna gibba (duck weed), Daphnia magna (water flea) and Oncorhynchus mykiss (Rainbow trout). All experiments were performed as per the OECD Guidelines for Testing of Chemicals. The toxicity end points of EC50, LC50, NOEC and LOEC for RR 120 were determined with 95% confidence limits using TOX STAT version 3.5. The EC50 of RR 120 for green alga, duck weed and water flea are >100.00, 64.34, 10.40 mg L(-1), respectively and LC50 for Rainbow trout is 78.84 mg L(-1). Based on the results, the test item RR 120 could be classified as non-toxic to green alga, harmful to duck weed and Rainbow trout, toxic to water flea.
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Affiliation(s)
- R Darsana
- Department of Biotechnology, International Institute of Biotechnology and Toxicology (IIBAT), Padappai, Kancheepuram District, Tamil Nadu, 601 301, India.
| | - G Chandrasehar
- Department of Biotechnology, International Institute of Biotechnology and Toxicology (IIBAT), Padappai, Kancheepuram District, Tamil Nadu, 601 301, India
| | - V Deepa
- Department of Toxicology, Vanta Bioscience, Gummidipundi, Tamil Nadu, 601201, India
| | - Y Gowthami
- Department of Biotechnology, International Institute of Biotechnology and Toxicology (IIBAT), Padappai, Kancheepuram District, Tamil Nadu, 601 301, India
| | - T Chitrikha
- Department of Biotechnology, International Institute of Biotechnology and Toxicology (IIBAT), Padappai, Kancheepuram District, Tamil Nadu, 601 301, India
| | - S Ayyappan
- Department of Biotechnology, International Institute of Biotechnology and Toxicology (IIBAT), Padappai, Kancheepuram District, Tamil Nadu, 601 301, India
| | - A Goparaju
- Department of Biotechnology, International Institute of Biotechnology and Toxicology (IIBAT), Padappai, Kancheepuram District, Tamil Nadu, 601 301, India
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Ayyappan S, Philips S, Kumar CK, Vaithiyanandane V, Sasikala C. Serum fructosamine a better indicator than glycated hemoglobin for monitoring gestational diabetes mellitus. J Pharm Bioallied Sci 2015; 7:S32-4. [PMID: 26015742 PMCID: PMC4439702 DOI: 10.4103/0975-7406.155786] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Revised: 10/31/2014] [Accepted: 11/09/2014] [Indexed: 02/04/2023] Open
Abstract
Gestational Diabetes mellitus is the condition of glucose intolerance that begins during pregnancy which is associated with both fetal and maternal complications. The measurement of serum fructosamine and glycated hemoglobin in normal and diabetic pregnancy used to investigate the influence of maternal and gestational age on concentrations of glycated proteins in serum and used to evaluate the patient's treatment. This study was done to measure the level of serum fructosamine and Glycated hemoglobin (HbA1c) in Gestational Diabetes mellitus (GDM) patients and to compare with pregnant women without diabetes and healthy non-pregnant adults, to determine the pattern of change in serum fructosamine, influence of serum fructosamine and HbA1c values and to evaluate the efficacy of patient's treatment. In this study the level of fructosamine was positively correlated to HbA1c during 2nd trimesters of gestational period, implying that the level of fructosamine can be used to screen Gestational diabetes mellitus. Correlation of glycated hemoglobin values with serum fructosamine measurements in the accurate determination of glycaemic control provides confirmation of the utility of fructosamine measurement.
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Affiliation(s)
- S Ayyappan
- Department of Biochemistry, Vivekanandha Dental College for Women, Tirchengodu, Namakkal, Tamil Nadu, India
| | - Sachu Philips
- Department of Biochemistry, Vivekanandha Dental College for Women, Tirchengodu, Namakkal, Tamil Nadu, India
| | - C Kishore Kumar
- Department of Physiology, Sri Lakshmi Narayana Institute of Medical Sciences, Puducherry, Affiliated to Bharath University, Chennai, Tamil Nadu, India
| | - V Vaithiyanandane
- Department of Physiology, Vivekanandha Dental College for Women, Tirchengodu, Namakkal, Tamil Nadu, India
| | - C Sasikala
- Department of Pharmacology, Sri Lakshmi Narayana Institute of Medical Sciences, Puducherry, Affiliated to Bharath University, Chennai, Tamil Nadu, India
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Ayyappan S, Philip S, Bharathy N, Ramesh V, Kumar CN, Swathi S, Kumar AA. Antioxidant status in neonatal jaundice before and after phototherapy. J Pharm Bioallied Sci 2015; 7:S16-21. [PMID: 26015697 PMCID: PMC4439657 DOI: 10.4103/0975-7406.155766] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [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: 10/31/2014] [Revised: 10/31/2014] [Accepted: 11/09/2014] [Indexed: 11/20/2022] Open
Abstract
Background: Neonatal jaundice refers to yellow coloration of the skin and the sclera (whites of the eyes) of newborn babies that result from the accumulation of bilirubin in the skin and mucous membranes. Because bilirubin is potentially toxic to the central nervous system. Genetic disorders of bilirubin conjugation, particularly the common Gilbert's syndrome, can also contribute to neonatal hyperbilirubinemia. Objective: The aim of this study was to evaluate the lipid per-oxidation and antioxidant enzyme activities in patients with neonatal jaundice before and after phototherapy. Materials and Methods: The study includes 50 neonatal jaundice patients with average age 2-15 days. All patients of neonatal jaundice receiving phototherapy except feeding, cleaning. Subjects selected were from the patients attending Pediatrics Department. Plasma malondialdehyde (MDA), erythrocyte glutathione peroxidase (GPX), superoxide dismutase and catalase (CAT) to monitor the bilirubin level. Results: The results show increased levels of bilirubin compared with controls (P < 0.001) shows the level of plasma MDA in control, before and after phototherapy. Represents the level of GPX was significantly increased in after the phototherapy group when compared with before phototherapy and control SPSS soft ware: (P < 0.001). Shows the reduced glutathione (GSH) level in plasma was significantly decreased in the after phototherapy group when compared with before phototherapy and control (P < 0.001). And finally with ascorbic acid and CAT. Conclusion: It is evident from the study that increased oxidative stress in neonatal jaundice babies leads to decrease in the levels of antioxidants like GSH and ascorbic acid and disturb their metabolism, that weaken their ability to fight the growing stress. Intense oxidative stress and decreased antioxidants may contribute to neural cell death and alter the erythrocytomembrane structure processing in neonatal jaundice.
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Affiliation(s)
- S Ayyappan
- Department of Biochemistry, Vivekananda Dental College for Women, Trichengodu, Namakkal, Tamil Nadu, India
| | - Sachu Philip
- Department of Biochemistry, Vivekananda Dental College for Women, Trichengodu, Namakkal, Tamil Nadu, India
| | - N Bharathy
- Departments of Biochemistry, Sri Lakshmi Narayana Institute of Medical Sciences, Affiliated to Bharath University, Puducherry, Tamil Nadu, India
| | - V Ramesh
- Departments of Biochemistry, Sri Lakshmi Narayana Institute of Medical Sciences, Affiliated to Bharath University, Puducherry, Tamil Nadu, India
| | - C Naveen Kumar
- Departments of Microbiology Sri Lakshmi Narayana Institute of Medical Sciences, Affiliated to Bharath University, Puducherry Tamil Nadu, India
| | - S Swathi
- Department of Microbiology, Madha Dental College, Chennai, Tamil Nadu, India
| | - A Arun Kumar
- Departments of Anatomy, Sri Lakshmi Narayana Institute of Medical Sciences, Affiliated to Bharath University, Puducherry, Tamil Nadu, India
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15
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Lesnyak V, George C, Genovese A, Prato M, Casu A, Ayyappan S, Scarpellini A, Manna L. Alloyed copper chalcogenide nanoplatelets via partial cation exchange reactions. ACS Nano 2014; 8:8407-18. [PMID: 25050455 PMCID: PMC4147956 DOI: 10.1021/nn502906z] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
We report the synthesis of alloyed quaternary and quinary nanocrystals based on copper chalcogenides, namely, copper zinc selenide-sulfide (CZSeS), copper tin selenide-sulfide (CTSeS), and copper zinc tin selenide-sulfide (CZTSeS) nanoplatelets (NPLs) (∼20 nm wide) with tunable chemical composition. Our synthesis scheme consisted of two facile steps: i.e., the preparation of copper selenide-sulfide (Cu2-xSeyS1-y) platelet shaped nanocrystals via the colloidal route, followed by an in situ cation exchange reaction. During the latter step, the cation exchange proceeded through a partial replacement of copper ions by zinc or/and tin cations, yielding homogeneously alloyed nanocrystals with platelet shape. Overall, the chemical composition of the alloyed nanocrystals can easily be controlled by the amount of precursors that contain cations of interest (e.g., Zn, Sn) to be incorporated/alloyed. We have also optimized the reaction conditions that allow a complete preservation of the size, morphology, and crystal structure as that of the starting Cu2-xSeyS1-y NPLs. The alloyed NPLs were characterized by optical spectroscopy (UV-vis-NIR) and cyclic voltammetry (CV), which demonstrated tunability of their light absorption characteristics as well as their electrochemical band gaps.
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Affiliation(s)
- Vladimir Lesnyak
- Department of Nanochemistry, Istituto Italiano di Tecnologia, via Morego, 30, 16163 Genova, Italy
- Address correspondence to
| | - Chandramohan George
- Department of Nanochemistry, Istituto Italiano di Tecnologia, via Morego, 30, 16163 Genova, Italy
- IFM-Department of Engineering, University of Cambridge, 17 Charles Babbage Road, Cambridge CB3 0FS, United Kingdom
| | - Alessandro Genovese
- Department of Nanochemistry, Istituto Italiano di Tecnologia, via Morego, 30, 16163 Genova, Italy
| | - Mirko Prato
- Department of Nanochemistry, Istituto Italiano di Tecnologia, via Morego, 30, 16163 Genova, Italy
| | - Alberto Casu
- Department of Nanochemistry, Istituto Italiano di Tecnologia, via Morego, 30, 16163 Genova, Italy
| | - S. Ayyappan
- Department of Nanochemistry, Istituto Italiano di Tecnologia, via Morego, 30, 16163 Genova, Italy
| | - Alice Scarpellini
- Department of Nanochemistry, Istituto Italiano di Tecnologia, via Morego, 30, 16163 Genova, Italy
| | - Liberato Manna
- Department of Nanochemistry, Istituto Italiano di Tecnologia, via Morego, 30, 16163 Genova, Italy
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Prakasam U, Hussain AKK, Ansar PP, Ayyappan S, Mahajan V, Ramanan G. Large cell neuroendocrine carcinoma of female genital tract: a clinicopathological study of two cases with review of literature. Indian J Surg Oncol 2014; 4:399-402. [PMID: 24426770 DOI: 10.1007/s13193-013-0276-1] [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] [Subscribe] [Scholar Register] [Received: 07/12/2013] [Accepted: 11/04/2013] [Indexed: 11/30/2022] Open
Affiliation(s)
- Umashankar Prakasam
- Department of Surgical Oncology, Apollo Cancer Institute, 320, Anna salai, Chennai, 600035 India
| | - A K Khader Hussain
- Department of Surgical Oncology, Apollo Cancer Institute, 320, Anna salai, Chennai, 600035 India
| | - P P Ansar
- Department of Surgical Oncology, Apollo Cancer Institute, 320, Anna salai, Chennai, 600035 India
| | - S Ayyappan
- Department of Surgical Oncology, Apollo Cancer Institute, 320, Anna salai, Chennai, 600035 India
| | - Vikas Mahajan
- Department of Surgical Oncology, Apollo Cancer Institute, 320, Anna salai, Chennai, 600035 India
| | - Ganpathy Ramanan
- Department of Surgical Oncology, Apollo Cancer Institute, 320, Anna salai, Chennai, 600035 India
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17
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Janakiram M, Zhang L, White R, Ayyappan S, Sparano J. Abstract P1-08-08: Tumor infiltrating lymphocytes (TILs) in breast cancer: A meta-analysis of response to neoadjuvant chemotherapy based on TIL status. Cancer Res 2013. [DOI: 10.1158/0008-5472.sabcs13-p1-08-08] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background:
TILs involving tumor and/or its associated stroma may be indicative of an immune response that may either facilitate anti-tumor immunity and clearance or immune tolerance and evasion. In this study we performed a meta-analysis evaluating the relationship between TILs and pathologic response to neoadjuvant chemotherapy (NAC) since this is considered as a surrogate endpoint of disease outcomes in ER negative or Her2 positive tumors.
Methods:
We searched PubMed and Embase (1991-May 2013), and ASCO abstracts (2009-2012), using a combination of free text search and controlled vocabulary search. We identified 1147 reports which met our initial search criteria, and they were reviewed to identify those which met the following criteria: (1) evaluated the presence of TILs, defined as tumor and/or stromal lymphocytes (CD4, CD8 or FOXP3) identified by H&E, IHC or gene expression before NAC, (2) classified TIL's “high/low” or “positive/negative”, and (3) correlated TILs with pathological complete response (pCR) or near pCR after NAC. Standard anthracycline-containing regimens were used as NAC in most studies, and anti-HER2 therapy was not used in most studies with HER2-positive disease. Results are presented as pooled odds ratios (OR) with 95% confidence intervals (CI), based on random-effects (to account for between study variance and heterogeneity due to different cutoffs and subtypes of T lymphocytes). Sensitivity analysis was done and publication bias was investigated using a funnel plot. We employed the Chi(2) test and calculated the I(2) statistic to investigate study heterogeneity. Meta-analysis statistics were calculated using StatsDirect Version 2.7.9.
Results:
Seven studies including 1641 patients met our criteria for inclusion in this analysis. A TIL ratio classified as either high or positive was associated with a significantly higher likelihood of achieving a pCR/near pCR after NAC (OR 3.68; 95% CI 1.93–7.01. p<0.0001) [Table 1]. This effect was driven mainly by a difference in ER negative tumors (OR 4.04, 95% CI 2.16-7.57. p<0.0001) and Her2 positive tumors (OR 5.61, 95% CI 1.8–17.47, p = 0.0007); the association was present, but nonsignificant, in ER positive tumors (OR 2.17, 95% CI 0.95-4.98). Sensitivity analyses did not change the inference. Funnel plots suggested low likelihood of publication bias (Harbord Egger test, p = 0.604) for all studies, and the I(2) statistic was 67.5%.
Table 1. Characteristics and Odds ratio for individual subtypesSubtypeNNo of studiesTIL low pCR%TIL high pCR%OR95% CIAll1641712.5%28.6%3.681.93 -7.01ER-/PR- and HER2- [except one study defined by ER-/PR-]403423.6%41.3%4.042.16 - 7.57Her2+326316.9%23.4%5.611.80 - 17.47ER/PR+55825.6%11.5%2.170.95 - 4.98
Conclusions:
In this systematic review and meta-analysis, high or positive TIL status before NAC was associated with a significantly better pathologic response to NAC (surrogate for DFS and OS), particularly in patients with ER/PR-negative or HER2-overexpressing disease. Patients with tumors characterized by low or absent TILs require novel therapeutic approaches, and may be candidates for immunotherapeutic approaches to enhance innate immunity or reverse immune tolerance.
Citation Information: Cancer Res 2013;73(24 Suppl): Abstract nr P1-08-08.
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Affiliation(s)
- M Janakiram
- Albert Einstein College of Medicine, Bronx, NY; Montefiore Medical Center, Bronx, NY; Case Western Reserve University, Cleveland, OH
| | - L Zhang
- Albert Einstein College of Medicine, Bronx, NY; Montefiore Medical Center, Bronx, NY; Case Western Reserve University, Cleveland, OH
| | - R White
- Albert Einstein College of Medicine, Bronx, NY; Montefiore Medical Center, Bronx, NY; Case Western Reserve University, Cleveland, OH
| | - S Ayyappan
- Albert Einstein College of Medicine, Bronx, NY; Montefiore Medical Center, Bronx, NY; Case Western Reserve University, Cleveland, OH
| | - J Sparano
- Albert Einstein College of Medicine, Bronx, NY; Montefiore Medical Center, Bronx, NY; Case Western Reserve University, Cleveland, OH
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18
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Satyavani G, Gopi RA, Ayyappan S, Balakrishnamurthy P, Reddy PN. Toxicity effect of expired pesticides to freshwater fish, Labeo rohita. ACTA ACUST UNITED AC 2013. [DOI: 10.3126/aej.v12i0.7557] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
We selected 15 widely used pesticide formulations to investigate possible chemical, biological and toxicological effects of expired pesticides that may enter into our ecosystem. They comprised of organophosphate and pyrethroid based insecticides, azole based fungicides, acetamide, propionate, acetic acid based herbicides, and fungicides mixtures containing two actives of azole and dithiocarbamates. The selected compounds were tested for acute toxicity to fish, Labeo rohita using Organisation for Economic Co-operation and Development (OECD) guideline no. 203 under static condition. Five to six concentrations (ranges from 0.005 – 80 mg/L) of both expired and unexpired pesticide formulations were tested along with controls under similar conditions at Department of Ecotoxicology, International Institute of Biotechnology and Toxicology. The results of the LC50 (Lethal Concentration)demonstrated significantly lower LC50 values for the expired pesticides as compared to the corresponding unexpired counter part. From this data, it is clear that expired pesticide formulations must be disposed carefully and, care should be taken to avoid their discharge to water bodies and thus prevent loss to fish. The Journal of Agriculture and Environment Vol:12, Jun.2011, Page 1-9 DOI: http://dx.doi.org/10.3126/aej.v12i0.7557
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Ayyappan S, Kalyani S, Philip J. Nature of Alkali Used in the Co-Precipitation of Superparamagnetic Nanoparticles on Their Thermal Stability and the Properties of Ferrofluids. J Nanofluids 2012. [DOI: 10.1166/jon.2012.1025] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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20
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Singh RK, Lal KK, Mohindra V, Punia P, Sah RS, Kumar R, Gupta A, Das R, Lakra WS, Ayyappan S. Genetic diversity of Indian Major Carp, Labeo calbasu (Hamilton, 1822) populations inferred from microsatellite loci. BIOCHEM SYST ECOL 2012. [DOI: 10.1016/j.bse.2012.02.002] [Citation(s) in RCA: 12] [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] [Indexed: 11/25/2022]
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21
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Karabacak M, Kurt M, Cinar M, Ayyappan S, Sudha S, Sundaraganesan N. The spectroscopic (FT-IR, FT-Raman, UV) and first order hyperpolarizability, HOMO and LUMO analysis of 3-aminobenzophenone by density functional method. Spectrochim Acta A Mol Biomol Spectrosc 2012; 92:365-376. [PMID: 22446786 DOI: 10.1016/j.saa.2012.02.067] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2011] [Revised: 02/13/2012] [Accepted: 02/17/2012] [Indexed: 05/31/2023]
Abstract
In this work, experimental and theoretical study on the molecular structure and the vibrational spectra of 3-aminobenzophenone (3-ABP) is presented. The vibrational frequencies of the title compound were obtained theoretically by DFT/B3LYP calculations employing the standard 6-311++G(d,p) basis set for optimized geometry and were compared with Fourier transform infrared spectrum (FTIR) in the region of 400-4000 cm(-1) and with Fourier Transform Raman spectrum in the region of 50-4000 cm(-1). Complete vibrational assignments, analysis and correlation of the fundamental modes for the title compound were carried out. The vibrational harmonic frequencies were scaled using scale factor, yielding a good agreement between the experimentally recorded and the theoretically calculated values.
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Affiliation(s)
- M Karabacak
- Department of Physics, Afyon Kocatepe University, Afyonkarahisar, Turkey
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22
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Saravanakumar P, Jothimani V, Sureshbabu L, Ayyappan S, Noorullah D, Venkatakrishnan P. Prediction of Mechanical Properties of Low Carbon Steel in Hot Rolling Process Using Artificial Neural Network Model. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.proeng.2012.06.395] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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23
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Satyavani G, Chandrasehar G, Varma KK, Goparaju A, Ayyappan S, Reddy PN, Murthy PB. Toxicity Assessment of Expired Pesticides to Green Algae Pseudokirchneriella subcapitata. ISRN Toxicol 2012; 2012:247072. [PMID: 23762633 PMCID: PMC3671695 DOI: 10.5402/2012/247072] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/26/2012] [Accepted: 10/01/2012] [Indexed: 11/23/2022]
Abstract
In order to investigate the effect of expired pesticides on the yield and growth rate of green algae Pseudokirchneriella subcapitata, a study was conducted as per the Organisation for Economic Cooperation and Development (OECD) guideline number 201. Fifteen expired pesticide formulations, most commonly used in Indian agriculture, were tested in comparison with their unexpired counterparts. The expired pesticide formulations studied belonged to various class and functional groups: organophosphate, pyrethroid-based insecticides; azole-based fungicides; acetamide, propionate, acetic acid-based herbicides; fungicides mixtures containing two actives—azole and dithiocarbamate. The toxicity endpoints of yield (EyC50: 0–72 h) and growth rate (ErC50: 0–72 h) of Pseudokirchneriella subcapitata for each pesticide formulation (both expired and unexpired pesticides) were determined statistically using TOXSTAT 3.5 version software. The results pointed out that some expired pesticide formulations exhibited higher toxicity to tested algal species, as compared to the corresponding unexpired pesticides. These data thus stress the need for greater care to dispose expired pesticides to water bodies, to avoid the effects on aquatic ecospecies tested.
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Affiliation(s)
- G Satyavani
- Toxicology, International Institute of Biotechnology and Toxicology (IIBAT), Padappai, Kancheepuram District, Tamil Nadu 601301, India
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24
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Dedeepiya V, Manjunath S, Murugan P, Srinivasan V, Thamaraikannan P, Tholcopiyan L, Justin William B, Ayyappan S, Abraham S. Autologous Bone Marrow Stem Cells in Spinal Cord Injury; Our Experience in Clinical Studies, Animal Studies, Obstacles faced and steps for future. J Stem Cells Regen Med 2010; 6:177-179. [PMID: 24693166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Affiliation(s)
- V Dedeepiya
- Nichi-In Centre for regenerative Medicine , Chennai, India
| | - S Manjunath
- Nichi-In Centre for regenerative Medicine , Chennai, India
| | - P Murugan
- Nichi-In Centre for regenerative Medicine , Chennai, India
| | - V Srinivasan
- Nichi-In Centre for regenerative Medicine , Chennai, India
| | | | - L Tholcopiyan
- Nichi-In Centre for regenerative Medicine , Chennai, India
| | | | - S Ayyappan
- Madras Veterinary College , Chennai, India
| | - S Abraham
- Nichi-In Centre for regenerative Medicine , Chennai, India ; Yamanashi University - Faculty of Medicine , Chuo, Japan
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25
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Ayyappan S, Sundaraganesan N, Aroulmoji V, Murano E, Sebastian S. Molecular structure, vibrational spectra and DFT molecular orbital calculations (TD-DFT and NMR) of the antiproliferative drug Methotrexate. Spectrochim Acta A Mol Biomol Spectrosc 2010; 77:264-275. [PMID: 20621610 DOI: 10.1016/j.saa.2010.05.021] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2010] [Revised: 05/08/2010] [Accepted: 05/15/2010] [Indexed: 05/29/2023]
Abstract
The FT-IR and FT-Raman spectral studies of the Methotrexate (MTX) were carried out. The equilibrium geometry, various bonding features and harmonic vibrational frequencies of MTX have been investigated with the help of B3LYP density functional theory (DFT) using 6-31G(d) as basis set. Detailed analysis of the vibrational spectra has been made with the aid of theoretically predicted vibrational frequencies. The vibrational analysis confirms the differently acting ring modes, steric repulsion, conjugation and back-donation. The energy and oscillator strength calculated by Time-Dependent Density Functional Theory (TD-DFT) results complement with the experimental findings. The calculated HOMO and LUMO energies show that charge transfer occur within the molecule. Good correlations between the experimental (1)H and (13)C NMR chemical shifts in DMSO solution and calculated GIAO shielding tensors were found.
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Affiliation(s)
- S Ayyappan
- Government College of Technology, Coimbatore 641013, India
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26
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Rofouei MK, Sohrabi N, Shamsipur M, Fereyduni E, Ayyappan S, Sundaraganesan N. X-ray crystallography characterization, vibrational spectroscopy, NMR spectra and quantum chemical DFT/HF study of N,N'-di(2-methoxyphenyl)formamidine. Spectrochim Acta A Mol Biomol Spectrosc 2010; 76:182-190. [PMID: 20409749 DOI: 10.1016/j.saa.2010.03.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2010] [Revised: 03/06/2010] [Accepted: 03/11/2010] [Indexed: 05/29/2023]
Abstract
The title compound, N,N'-di(2-methoxyphenyl)formamidine (DMPF) was synthesized and characterized by FT-IR, FT-Raman, (1)H NMR, (13)C NMR spectroscopy and X-ray single crystal diffraction. The results show that the compound crystallizes in an orthorhombic system, with space group of Pbca and eight molecules in the unit cell. The unit cell parameters are: a=11.1118 (7)A, b=14.9878 (9)A and c=16.2851 (10)A. The molecular geometry, the normal mode frequencies and corresponding vibrational assignments of DMPF at the ground state were performed by HF and B3LYP methods with 6-311+G(d,p) basis set. It was observed that the bond lengths and angles in the molecule, obtained by X-ray at the level of theory, were in good agreement with those of the experiment. A detailed interpretation of the infrared and Raman spectra of DMPF was reported. The (13)C NMR and (1)H NMR of DMPF have been calculated using HF and B3LYP methods with 6-311+G(d,p) basis set. Comparison between experimental and theoretical results showed that B3LYP/6-311+G(d,p) method is able to provide more satisfactory results for predicting IR, Raman, (1)H NMR and (13)C NMR properties.
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Affiliation(s)
- M K Rofouei
- Faculty of Chemistry, Tarbiat Moallem University, Tehran, Iran.
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27
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Sarma K, Pal AK, Ayyappan S, Das T, Manush SM, Debnath D, Baruah K. Acclimation of Anabas testudineus (Bloch) to three test temperatures influences thermal tolerance and oxygen consumption. Fish Physiol Biochem 2010; 36:85-90. [PMID: 19082752 DOI: 10.1007/s10695-008-9293-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2008] [Accepted: 11/11/2008] [Indexed: 05/27/2023]
Abstract
Teleost fish have developed their own specific adaptive mechanism, both behavioral and physiological, to maintain homeostasis in response to unfavorable temperatures. Therefore, this study was aimed at assessing the critical thermal maxima (CT(Max)), critical thermal minima (CT(Min)), and oxygen consumption rate of Anabas testudineus (17.03 +/- 1.2 g) after acclimating to three preset temperatures (25, 30, and 35 degrees C) for 30 days. The CT(Max) and CT(Min) were 40.15, 41.40, 41.88 degrees C and 12.43, 13.06, 13.94 degrees C, respectively, and were significantly different (P < 0.05). The thermal tolerance polygon for the specified temperatures was 278.30 degrees C(2). The oxygen consumption rate (117.03, 125.70, 198.48 mg O(2) kg(-1) h(-1), respectively) increased significantly (P < 0.05) with increasing acclimation temperatures. The overall results indicate that the thermal tolerance and oxygen consumption of A. testudineus are dependent on acclimation.
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Affiliation(s)
- Kamal Sarma
- Division of Fisheries Science, Central Agricultural Research Institute, ICAR, Port Blair 744101, India
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28
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Adhikari S, Ghosh L, Rai SP, Ayyappan S. Metal concentrations in water, sediment, and fish from sewage-fed aquaculture ponds of Kolkata, India. Environ Monit Assess 2009; 159:217-230. [PMID: 18998223 DOI: 10.1007/s10661-008-0624-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2008] [Accepted: 10/10/2008] [Indexed: 05/27/2023]
Abstract
The concentrations of lead, cadmium, chromium, copper, and zinc were investigated in the sewage-fed pond water, sediment, and the various organs of Labeo rohita, Catla catla, Cirrhinus mrigala, Oreochromis mossambicus, and Cyprinus carpio cultured in sewage-fed ponds, Kolkata, India. Among the metals, cadmium, lead, and zinc were detected in water and, except lead, were below the water quality guideline levels for the protection of freshwater aquatic life proposed by CEQG (Canadian Environmental Quality Guidelines) and AENV (Alberta Environment). Therefore, lead could pose danger to aquatic organisms. All the five metals were detected in the sediment and, except cadmium and lead, were below the sediment quality guideline levels for aquatic life proposed by EPA (Environmental Protection Agency). Therefore, these two metals could be toxic to aquatic organisms. Significant (P > 0.05) differences were observed among the five fish species for all these metals accumulation. Also, significant (P > 0.05) differences were noticed among these metals accumulation in fish organs. Cadmium showed the least bioaccumulation, while zinc showed the highest bioaccumulation in all the fish species. Though the metal concentration in the different fish tissues was variable, the highest concentration was found in kidney and the lowest in the muscle. Concentrations of these metals in the muscle tissue of all the fish species were well below the consumption safety tolerance in fish set by WHO/FAO, and thus, so far as these metals are concerned, these sewage-fed cultured fishes are safe and suitable for human consumption.
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Affiliation(s)
- S Adhikari
- Central Institute of Freshwater Aquaculture, Kausalyaganga, Bhubaneswar, 751 002, India.
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29
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Justin William B, Ayyappan S, Capt Dhana Jaya Rao G, Pushkinraj H, Kannan T, Sureshkumar R, Manjunath S, Murugan P, Srinivasan V, Abraham S. Intralesional application of autologous bone marrow stem cells with scaffold in canine for spinal cord injury. J Stem Cells Regen Med 2009; 5:64. [PMID: 24693048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Affiliation(s)
| | - S Ayyappan
- Madras Veterinary College , Chennai, India
| | | | | | - Ta Kannan
- Madras Veterinary College , Chennai, India
| | | | - S Manjunath
- Nichi-In Centre for Regenerative Medicine , Chennai, India
| | - P Murugan
- Nichi-In Centre for Regenerative Medicine , Chennai, India
| | - V Srinivasan
- Nichi-In Centre for Regenerative Medicine , Chennai, India
| | - S Abraham
- Nichi-In Centre for Regenerative Medicine , Chennai, India ; Yamanashi University - Faculty of Medicine , Chuo, Japan
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30
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Sarma K, Pal AK, Sahu NP, Ayyappan S, Baruah K. Dietary high protein and vitamin C mitigates endosulfan toxicity in the spotted murrel, Channa punctatus (Bloch, 1793). Sci Total Environ 2009; 407:3668-3673. [PMID: 19324396 DOI: 10.1016/j.scitotenv.2009.02.031] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2008] [Revised: 01/26/2009] [Accepted: 02/11/2009] [Indexed: 05/27/2023]
Abstract
The amelioration effect of dietary high protein and vitamin C against stress was evaluated in spotted murrel, Channa punctatus, exposed to endosulfan. Two hundred and forty fish (average weight: 27.01 g/fish), distributed equally into 4 different groups (control, T(1), T(2), and T(3)), each with 6 replicates were fed with control (40% crude protein, CP and 0.1% vitamin C), T(1) (40% CP and 0.1% vitamin C), T(2) (50% CP and 0.1% vitamin C), and T(3) (50% CP and 0.2% vitamin C) diets for 90 days. Groups fed T(1), T(2), and T(3) diets were exposed to sublethal endosulfan concentration, whereas the control was maintained without endosulfan exposure. Results indicated significant reduction in the growth performance, survival, and activities of lactate dehydrogenase (liver and muscle), malate dehydrogenase (liver and muscle), enzymes of protein metabolism (aspartate amino transferase in liver and alanine amino transferase in liver and muscle), acetyl choline esterase (brain), alkaline phosphatase activity (liver), and ATPase (gill) enzymes of group fed control diet and exposed to endosulfan. However, endosulfan exposed fish fed high CP and vitamin C diet exhibited significant (P<0.05) improvement in their growth performance and metabolic enzyme activities. Further, high CP and vitamin C diet reduced endosulfan accumulation in the muscle. Overall results indicate that vitamin C (0.2%) supplementation in high CP (50%) diet improves growth, metabolism, and reduce endosulfan bioaccumulation in C. punctatus.
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Affiliation(s)
- K Sarma
- Division of Fisheries Science, Central Agricultural Research Institute, ICAR, Port Blair 744101, India
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Adhikari S, Ghosh L, Giri BS, Ayyappan S. Distributions of metals in the food web of fishponds of Kolleru Lake, India. Ecotoxicol Environ Saf 2009; 72:1242-1248. [PMID: 19070365 DOI: 10.1016/j.ecoenv.2008.10.011] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2008] [Revised: 10/01/2008] [Accepted: 10/11/2008] [Indexed: 05/27/2023]
Abstract
The distributions of trace metals (Pb, Cd, Cr Mn, Zn and Cu) in water, sediment, plankton and four fish species (Labeo rohita, Catla catla, Pangasius pangasius and Cirrhinus mrigala) from fishponds of Kolleru Lake, India were determined using atomic absorption spectroscopy. The concentrations of lead (0.01-0.03mg/l) and copper (0.01-0.08mg/l) in water and cadmium (3.0-9.0mg/kg), chromium (47-211mg/kg) and copper (10-64mg/kg) in sediment were above the EPA threshold effects level (TEL) and are of biological concern. The abundance orders of metals were Mn>Cd>Cu>Pb in water, Mn>Cr>Zn>Cu >Pb>Cd in sediment and Cu>Mn>Cr>Zn>Pb>Cd in plankton. The concentrations of the metals in the muscles of these four fish species apparently decrease in the order Zn>Cu>Cr>Mn=Pb>Cd and were well below WHO permissible limits that were safe for human consumption.
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Affiliation(s)
- S Adhikari
- Soil and Water Chemistry Section, Central Institute of Freshwater Aquaculture, Kausalyaganga, Bhubaneswar 751 002, India.
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Mitra G, Mukhopadhyay P, Ayyappan S. Modulation of digestive enzyme activities during ontogeny of Labeo rohita larvae fed ascorbic acid enriched zooplankton. Comp Biochem Physiol A Mol Integr Physiol 2008; 149:341-50. [DOI: 10.1016/j.cbpa.2008.01.001] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2006] [Revised: 12/17/2007] [Accepted: 01/04/2008] [Indexed: 10/22/2022]
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Lakshmi ND, Ganesh TN, Ayyappan S, Shafiuzama MD, Sureshkumar R. Management of a distal metaphyseal radial fracture in a dog with a mini T-plate. Vet Rec 2007; 161:791-792. [PMID: 18065816] [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: 05/25/2023]
Affiliation(s)
- N Dhana Lakshmi
- Department of Veterinary Surgery and Radiology, Madras Veterinary College, Chennai 7, Tamil Nadu, India
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Sundaraganesan N, Ayyappan S, Umamaheswari H, Joshua BD. FTIR, FT-Raman spectra and ab initio, DFT vibrational analysis of 2,4-dinitrophenylhydrazine. Spectrochim Acta A Mol Biomol Spectrosc 2007; 66:17-27. [PMID: 16815087 DOI: 10.1016/j.saa.2006.02.015] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2005] [Revised: 01/26/2006] [Accepted: 02/13/2006] [Indexed: 05/10/2023]
Abstract
The FTIR and FT-Raman spectra of 2,4-dinitrophenylhydrazine (2,4-DNPH) has been recorded in the region 4000-400 and 3500-50cm-1, respectively. The optimized geometry, frequency and intensity of the vibrational bands of 2,4-DNPH were obtained by the ab initio and density functional theory (DFT) levels of theory with complete relaxation in the potential energy surface using 6-31G(d,p) and 6-311G(d,p) basis sets. The harmonic vibrational frequencies were calculated and the scaled values have been compared with experimental FTIR and FT-Raman spectra. The observed and the calculated frequencies are found to be in good agreement. The experimental spectra also coincide satisfactorily with those of theoretically constructed bar type spectrograms.
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Affiliation(s)
- N Sundaraganesan
- Department of Physics (Engg.), Annamalai University, Annamalai Nagar 608002, India.
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Abstract
Toxic heavy metals and metalloids are constantly released into the environment, and their removal is a very difficult task because of the high cost of treatment methods. Various methods exist for the removal of toxic metal ions from aqueous solutions. Among these are adsorption using activated carbon, by far the most versatile and widely used method for the removal of toxic metals; however, it is relatively expensive and less feasible to use in developing countries. Furthermore, activated carbon loaded with toxicants is generally incinerated or disposed of on land, thereby causing environmental pollution through different routes. There is an urgent need to develop low-cost, effective, and sustainable methods for their removal or detoxification. The use of lignocellulosic agrowastes is a very useful approach, because of their high adsorption properties, which results from their ion-exchange capabilities. Agricultural wastes can be made into good sorbents for the removal of many metals, which would add to their value, help reduce the cost of waste disposal, and provide a potentially cheap alternative to existing commercial carbons. Although the abundance and very low cost of lignocellulosic wastes from agricultural operations are real advantages that render them suitable alternatives for the remediation of heavy metals, further successful studies on these materials are essential to demonstrate the efficacy of this technology.
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Affiliation(s)
- K K Krishnani
- Central Institute of Brackishwater Aquaculture, 75 Santhome High Road, R.A. Puram, Chennai 600028, India
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Natarajan MV, Sivaseelam A, Ayyappan S, Bose JC, Sampath Kumar M. Distal femoral tumours treated by resection and custom mega-prosthetic replacement. Int Orthop 2005; 29:309-13. [PMID: 16132985 PMCID: PMC3456650 DOI: 10.1007/s00264-005-0677-z] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2005] [Revised: 04/27/2005] [Accepted: 05/04/2005] [Indexed: 10/25/2022]
Abstract
We have analysed the results of 246 cases of distal femoral tumours treated by resection and prosthetic replacement between 1988 and 2002. Patient ages ranged from 6-67 years averaging 24 years; 133 were males. The most common tumour was osteosarcoma (67% of patients). The follow-up ranged from 2 to 14 years. Stage II tumours were seen in 72% of patients. The technique of sleeve resection of the quadriceps musculature was followed to achieve local clearance of the tumour. The prosthesis used was a rotating hinge custom mega-prosthesis manufactured locally. The functional result achieved was excellent or good in 87%; 86% of the patients had no evidence of disease, and 13% had died. The 10-year patient survival was 76.9%. Periprosthetic fracture and infection were the most common complications.
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Affiliation(s)
- Mayil Vahanan Natarajan
- Department of Orthopaedics and Traumatology, Madras Medical College and Research Institute, Government General Hospital, Chennai, 600 003, India.
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Parija T, Shirley S, Uma S, Rajalekshmy KR, Ayyappan S, Rajkumar T. Type 1 (11; 22)(q24: q12) translocation is common in Ewing’s sarcoma/ peripheral neuroectodermal tumour in south Indian patients. J Biosci 2005; 30:371-6. [PMID: 16052075 DOI: 10.1007/bf02703674] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [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: 11/25/2022]
Abstract
The Ewing's sarcoma family can present diagnostic difficulties. In the past the basis of diagnosis has been a exclusion. Identification of a specific translocation especially t(11;22) (EWS-FLI 1 fusion gene), which is seen in nearly 85 percent of Ewing's sarcoma cases can help in precise diagnosis. We have carried out a study on twenty patient samples diagnosed to have Ewing's sarcoma/peripheral neuroectodermal tumour (PNET)/small round cell malignant tumour. The study involved RT-PCR analysis for the fusion transcript, followed by sequencing to identify the specific type of fusion. Ninety percent (18/20) of the samples tested were found to be t(11;22) translocations involving EWS-FLI 1 genes. Sixty-one percent (11/18) were found to be type 1 fusion and seven were type 2 (39 percentage). This is the first study in India with quantitative information about the types of EWS-FLI 1 translocations present in Ewing's family of tumours in south Indian patients.
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MESH Headings
- Adolescent
- Adult
- Child
- Chromosomes, Human, Pair 11
- Chromosomes, Human, Pair 22
- Female
- Humans
- India
- Male
- Middle Aged
- Neuroectodermal Tumors, Primitive, Peripheral/classification
- Neuroectodermal Tumors, Primitive, Peripheral/diagnosis
- Neuroectodermal Tumors, Primitive, Peripheral/genetics
- Oncogene Proteins, Fusion/genetics
- Proto-Oncogene Protein c-fli-1
- RNA-Binding Protein EWS
- Sarcoma, Ewing/classification
- Sarcoma, Ewing/diagnosis
- Sarcoma, Ewing/genetics
- Transcription Factors/genetics
- Translocation, Genetic
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Affiliation(s)
- T Parija
- Department of Molecular Oncology, Cancer Institute (WIA), Adyar, Chennai 600 020, India
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Adhikari S, Sarkar B, Chatterjee A, Mahapatra CT, Ayyappan S. Effects of cypermethrin and carbofuran on certain hematological parameters and prediction of their recovery in a freshwater teleost, Labeo rohita (Hamilton). Ecotoxicol Environ Saf 2004; 58:220-6. [PMID: 15157576 DOI: 10.1016/j.ecoenv.2003.12.003] [Citation(s) in RCA: 127] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2002] [Revised: 09/30/2003] [Accepted: 12/08/2003] [Indexed: 05/23/2023]
Abstract
Sublethal effects of cypermethrin and carbofuran on hematological parameters and their complete recovery were studied in Labeo rohita as a function of exposure time. Exposure of Labeo rohita to sublethal levels of cypermethrin and carbofuran resulted in significantly (P<0.05) lower values for erythrocyte count (RBC), hemoglobin content (Hb), and hematocrit compared with the control group. In contrast, there was a significant increase (P<0.05) in leukocyte count (TLC) in the pesticide-treated group. Mean cell volume (MCV) and mean cell hemoglobin (MCH) increased in response to both pesticides during the study. The rate of recovery or extrapolation time between Days 0 and 28 of the recovery period revealed that RBC completely recovered from cypermethrin toxicity on Days 80, 86.6, and 90 and TLC recovered on Days 60, 62.7, and 63.3 in fish exposed to 0.16, 0.40, and 0.80 microL/L cypermethrin, respectively. In the case of carbofuran toxicity, the complete recovery for RBC was on Days 100, 101.5, and 102, and for TLC, on Days 77, 77.6, and 79.3 in fish exposed to 0.06, 0.15, and 0.30 mg/L carbofuran, respectively. TLC recovered faster than RBC. RBC and TLC of fish exposed to carbofuran took more time to complete recovery than RBC and TLC in fish exposed to cypermethrin.
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Affiliation(s)
- S Adhikari
- Central Institute of Freshwater Aquaculture, P.O. Kausalyaganga, Bhubaneswar 751002, India.
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Das PC, Ayyappan S, Das BK, Jena JK. Nitrite toxicity in Indian major carps: sublethal effect on selected enzymes in fingerlings of Catla catla, Labeo rohita and Cirrhinus mrigala. Comp Biochem Physiol C Toxicol Pharmacol 2004; 138:3-10. [PMID: 15313441 DOI: 10.1016/j.cca.2004.03.010] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [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: 01/09/2004] [Revised: 03/29/2004] [Accepted: 03/31/2004] [Indexed: 11/25/2022]
Abstract
The effects of 96-h sublethal exposure of nitrite (1, 2, 4, 8 and 10.4 mg l(-1)) on selected enzymatic activities in serum and tissues of fingerlings of catla (Catla catla), rohu (Labeo rohita) and mrigal (Cirrhinus mrigala) were studied for the first time in these species. All three species responded almost identically to nitrite exposure. With increasing nitrite concentration, reduction in activities was observed in acetylcholinesterase (AChE) in brain and liver; alkaline phosphatase (ALP) in serum, brain and gill; and acid phosphatase (ACP) in gill, while progressive increase in alanine aminotransferase (ALAT) and aspartate aminotransferase (ASAT) activities in brain, gill and serum, and ACP activity in serum and brain was observed. Lactate dehydrogenase (LDH) activity increased in gill, liver, kidney, brain and serum of all three species with increasing nitrite concentration up to 8 mg l(-1) followed by reduction at 10.4 mg l(-1). The study revealed nitrite stress causing alteration in activities of all measured tissue and serum enzymes in the fingerlings, and so stresses the need for proper management of this particular nutrient in water during carp culture.
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Affiliation(s)
- P C Das
- Fish and Fisheries Unit, Central Rice Research Institute, Cuttack, Orissa 753006, India.
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40
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Kannan RR, Mahajan V, Ayyappan S. Management of chyle fistulae following surgery in the neck. Indian J Cancer 2001; 38:117-20. [PMID: 12593449] [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: 03/01/2023]
Abstract
Chyle fistulae are seen in less than twenty percent of cases following head and neck surgery. At the Cancer Institute, Madras, India, chyle leaks were seen in 19 patients between 1990 and 1999. The leak subsided spontaneously in sixteen patients on conservative management. The neck was re-explored in three patient. The thoracic duct was ligated in one and the wound packed in two. Conservative management in the form of aspirations and strapping is more likely to succeed when the volume of drainage is low or decresing over time and the surgical incision and skin flaps remain healthy. Rightsided leaks and late appearing fistulae are also likely to close on conservative management. Dietary modifications may help in this process. Re-exploration of the neck would be required when conservative management fails. Early exploration would be advised when the drainage is large or does not decrease over a few days or if there is a tendency to wound breakdown. A thorough knowledge of the anatomy of lymphatic pathways from the thorax and abdomen, identification of the thoracic duct during surgery and detection and ligature of all lymphatic leaks intraoperatively using a trendelenburg position and valsalva maneuver will help reduce the occurrence of this problem.
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Affiliation(s)
- R R Kannan
- Surgical Oncology Cancer Institute (WIA), Chennai-600020, Tamilnadu, India
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Ganesh MS, Ayyappan S, Majhi U. Squamous cell carcinoma of ascending colon. A case study. Indian J Cancer 1999; 36:190-1. [PMID: 10921224] [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: 02/17/2023]
Abstract
We report here a case of squamous cell carcinoma of Ascending colon occurring in a 58 year old male. Squamous cell carcinomas are known to occur in the Ano rectum frequently, but are extremely rare in colon especially the right colon.
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Affiliation(s)
- M S Ganesh
- Department of Surgical Oncology and Pathology, Cancer Institute (WIA), Tamil Nadu, India
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Ayyappan S, Diaz de Delgado G, Cheetham AK, Férey G, Rao CNR. Synthesis and characterization of a three-dimensional open-framework lead(II) carboxyethylphosphonate, Pb3(O2CCH2CH2PO3)2. ACTA ACUST UNITED AC 1999. [DOI: 10.1039/a905326c] [Citation(s) in RCA: 94] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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46
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Ayyappan S, Subbanna GN, Rao CNR. Novel Metastable Structures of WO3, MoO3 and W1-xMoxO3 Obtained by the Deintercalation of Layered Amine Adducts. Chemistry 1995. [DOI: 10.1002/chem.19950010305] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Oláh J, Sinha VRP, Ayyappan S, Purushothaman CS, Radheyshyam S. Sediment Oxygen Consumption in Tropical Undrainable Fish Ponds. ACTA ACUST UNITED AC 1987. [DOI: 10.1002/iroh.19870720305] [Citation(s) in RCA: 7] [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: 11/12/2022]
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Oláh J, Sinha VRP, Ayyappan S, Purushothaman CS, Radheyshayam S. Community Metabolism in Tropical Undrainable Rural Fish Ponds. ACTA ACUST UNITED AC 1986. [DOI: 10.1002/iroh.19860710607] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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