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Alves CAPF, Sidpra J, Manteghinejad A, Sudhakar S, Massey FV, Aldinger KA, Haldipur P, Lucato LT, Ferraciolli SF, Teixeira SR, Öztekin Ö, Bhattacharya D, Taranath A, Prabhu SP, Mirsky DM, Andronikou S, Millen KJ, Barkovich AJ, Boltshauser E, Dobyns WB, Barkovich MJ, Whitehead MT, Mankad K. Dandy-Walker Phenotype with Brainstem Involvement: 2 Distinct Subgroups with Different Prognosis. AJNR Am J Neuroradiol 2023; 44:1201-1207. [PMID: 37591769 PMCID: PMC10549954 DOI: 10.3174/ajnr.a7967] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 07/18/2023] [Indexed: 08/19/2023]
Abstract
BACKGROUND AND PURPOSE Although cardinal imaging features for the diagnostic criteria of the Dandy-Walker phenotype have been recently defined, there is a large range of unreported malformations among these patients. The brainstem, in particular, deserves careful attention because malformations in this region have potentially important implications for clinical outcomes. In this article, we offer detailed information on the association of brainstem dysgenesis in a large, multicentric cohort of patients with the Dandy-Walker phenotype, defining different subtypes of involvement and their potential clinical impact. MATERIALS AND METHODS In this established multicenter cohort of 329 patients with the Dandy-Walker phenotype, we include and retrospectively review the MR imaging studies and clinical records of 73 subjects with additional brainstem malformations. Detailed evaluation of the different patterns of brainstem involvement and their potential clinical implications, along with comparisons between posterior fossa measurements for the diagnosis of the Dandy-Walker phenotype, was performed among the different subgroups of patients with brainstem involvement. RESULTS There were 2 major forms of brainstem involvement in patients with Dandy-Walker phenotype including the following: 1) the mild form with anteroposterior disproportions of the brainstem structures "only" (57/73; 78%), most frequently with pontine hypoplasia (44/57; 77%), and 2) the severe form with patients with tegmental dysplasia with folding, bumps, and/or clefts (16/73; 22%). Patients with severe forms of brainstem malformation had significantly increased rates of massive ventriculomegaly, additional malformations involving the corpus callosum and gray matter, and interhemispheric cysts. Clinically, patients with the severe form had significantly increased rates of bulbar dysfunction, seizures, and mortality. CONCLUSIONS Additional brainstem malformations in patients with the Dandy-Walker phenotype can be divided into 2 major subgroups: mild and severe. The severe form, though less prevalent, has characteristic imaging features, including tegmental folding, bumps, and clefts, and is directly associated with a more severe clinical presentation and increased mortality.
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Affiliation(s)
- C A P F Alves
- From the Division of Neuroradiology (C.A.P.F.A., A.M., S.R.T., S.A., M.T.W.), Department of Radiology, Children's Hospital of Philadelphia, Philadephia, Pennsylvania
| | - J Sidpra
- Unit of Neuroradiology (J.S., S.S., K.M.), Great Ormond Street Hospital for Children, National Health Service Foundation Trust, London, United Kingdom
- Developmental Biology & Cancer Section (J.S., K.M.), University College London Great Ormond Street Institute of Child Health, London, United Kingdom
| | - A Manteghinejad
- From the Division of Neuroradiology (C.A.P.F.A., A.M., S.R.T., S.A., M.T.W.), Department of Radiology, Children's Hospital of Philadelphia, Philadephia, Pennsylvania
| | - S Sudhakar
- Unit of Neuroradiology (J.S., S.S., K.M.), Great Ormond Street Hospital for Children, National Health Service Foundation Trust, London, United Kingdom
| | - F V Massey
- Unit of Functional Neurosurgery (F.V.M.), National Hospital for Neurology & Neurosurgery, London, United Kingdom
| | - K A Aldinger
- Center for Integrative Brain Research (K.A.A., P.H., K.J.M.), Seattle Children's Research Institute, Seattle, Washington
- Departments of Pediatrics and Neurology (K.A.A., P.H., K.J.M.), University of Washington, Seattle, Washington
| | - P Haldipur
- Center for Integrative Brain Research (K.A.A., P.H., K.J.M.), Seattle Children's Research Institute, Seattle, Washington
- Departments of Pediatrics and Neurology (K.A.A., P.H., K.J.M.), University of Washington, Seattle, Washington
| | - L T Lucato
- Department of Radiology, Division of Neuroradiology (L.T.L., S.F.F.), Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - S F Ferraciolli
- Department of Radiology, Division of Neuroradiology (L.T.L., S.F.F.), Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - S R Teixeira
- From the Division of Neuroradiology (C.A.P.F.A., A.M., S.R.T., S.A., M.T.W.), Department of Radiology, Children's Hospital of Philadelphia, Philadephia, Pennsylvania
| | - Ö Öztekin
- Department of Neuroradiology (Ö.Ö.), Bakırçay University, Çiğli Education and Research Hospital, İzmir, Turkey
| | - D Bhattacharya
- Department of Neuroradiology (D.B.), Royal Victoria Hospital, Belfast, UK
| | - A Taranath
- Department of Medical Imaging (A.T.), Women's and Children's Hospital, Adelaide, South Australia, Australia
| | - S P Prabhu
- Department of Radiology, Neuroradiology Division (S.P.P.), Boston Children's Hospital, Boston, Massachusetts
| | - D M Mirsky
- Department of Radiology, Neuroradiology Division (D.M.M.), Children's Hospital Colorado, Aurora, Colorado
| | - S Andronikou
- From the Division of Neuroradiology (C.A.P.F.A., A.M., S.R.T., S.A., M.T.W.), Department of Radiology, Children's Hospital of Philadelphia, Philadephia, Pennsylvania
| | - K J Millen
- Center for Integrative Brain Research (K.A.A., P.H., K.J.M.), Seattle Children's Research Institute, Seattle, Washington
- Departments of Pediatrics and Neurology (K.A.A., P.H., K.J.M.), University of Washington, Seattle, Washington
| | - A J Barkovich
- Department of Neuroradiology (A.J.B., M.J.B.), University of California, San Francisco, San Francisco, California
| | - E Boltshauser
- Department of Pediatric Neurology (E.B.), University Children's Hospital, Zürich, Switzerland
| | - W B Dobyns
- Department of Genetics and Metabolism (W.B.D.), University of Minnesota, Minneaplis, Minnesota
| | - M J Barkovich
- Department of Neuroradiology (A.J.B., M.J.B.), University of California, San Francisco, San Francisco, California
| | - M T Whitehead
- From the Division of Neuroradiology (C.A.P.F.A., A.M., S.R.T., S.A., M.T.W.), Department of Radiology, Children's Hospital of Philadelphia, Philadephia, Pennsylvania
| | - K Mankad
- Unit of Neuroradiology (J.S., S.S., K.M.), Great Ormond Street Hospital for Children, National Health Service Foundation Trust, London, United Kingdom
- Developmental Biology & Cancer Section (J.S., K.M.), University College London Great Ormond Street Institute of Child Health, London, United Kingdom
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Sudhakar S, Gupta N, Ghambir N, Singh R, Singh D. Comparative Evaluation of Intracanal Smear Layer Removal by Different Root Canal Irrigants: A Scanning Electron Microscope Study. Int J Clin Pediatr Dent 2023; 16:633-638. [PMID: 37731794 PMCID: PMC10507302 DOI: 10.5005/jp-journals-10005-2648] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/22/2023] Open
Abstract
Aim The purpose of the study is to compare and evaluate the efficacy of different root canal irrigants-100, 75, 50, and 25% neem extract, 100, 75, 50, and 25% apple cider vinegar (ACV), a combination of 5.25% sodium hypochlorite (NaOCl) and 17% ethylenediaminetetraacetic acid (EDTA), and saline on smear layer removal using a scanning electron microscope (SEM). Materials and methods A total of 80 freshly extracted single-rooted teeth were collected and divided into 10 groups-group I: normal saline (negative control), group II: NaOCl with EDTA (positive control), group III: 100% neem extract, group IV: 75% neem extract, group V: 50% neem extract, group VI: 25% neem extract, group VII: 100% ACV, group VIII: 75% ACV, group IX: 50% ACV, and group X: 25% ACV. The samples were irrigated with a specific group of irrigants, then split in a longitudinal axis and processed for analysis in an SEM. Microphotographs were obtained and scored according to Torabinejad et al. Results Microphotographs were assessed and showed that 100% neem extract was similar to NaOCl with EDTA, followed by 75% neem extract and 100% ACV. Conclusion This study showed that 100% neem extract removed the smear layer, similar to the NaOCl with EDTA. How to cite this article Sudhakar S, Gupta N, Ghambir N, et al. Comparative Evaluation of Intracanal Smear Layer Removal by Different Root Canal Irrigants: A Scanning Electron Microscope Study. Int J Clin Pediatr Dent 2023;16(4):633-638.
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Affiliation(s)
- S Sudhakar
- Department of Pediatric and Preventive Dentistry, Santosh Dental College, Santosh (Deemed to be University), Ghaziabad, Uttar Pradesh, India
| | - Nidhi Gupta
- Department of Pediatric and Preventive Dentistry, Santosh Dental College, Santosh (Deemed to be University), Ghaziabad, Uttar Pradesh, India
| | - Natasha Ghambir
- Department of Pediatric and Preventive Dentistry, Santosh Dental College, Santosh (Deemed to be University), Ghaziabad, Uttar Pradesh, India
| | - Rashi Singh
- Department of Pediatric and Preventive Dentistry, Santosh Dental College, Santosh (Deemed to be University), Ghaziabad, Uttar Pradesh, India
| | - Divya Singh
- Department of Pediatric and Preventive Dentistry, Santosh Dental College, Santosh (Deemed to be University), Ghaziabad, Uttar Pradesh, India
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Nelson A, Sudhakar S, Mishra J, Tirupathi HK, Marella VG, Kudagi VS. Comparison of the Sevoflurane versus Desflurane Anaesthesia on the Recovery of Airway Reflexes and Cognitive Function: An Original Research. J Pharm Bioallied Sci 2023; 15:S288-S292. [PMID: 37654338 PMCID: PMC10466510 DOI: 10.4103/jpbs.jpbs_497_22] [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: 10/18/2022] [Revised: 01/12/2023] [Accepted: 02/20/2023] [Indexed: 09/02/2023] Open
Abstract
Background and Objectives Sevoflurane and desflurane virtually equally dissolve in blood gases, yet current research suggests that desflurane helps in a quick return of airway reflex than sevoflurane however the return of cognitive activity fluctuates greatly. In order to compare the lengths of time required to recover after sevoflurane and desflurane anesthesia, the current research was conducted. Materials and Methods Current study was randomized that included 100 subjects who were posted for cholecystectomy (elective). Only adult and non-obese subjects were included in the study. The intended anesthetic agents sevoflurane and desflurane were utilized in the study and all the protocols were followed for the surgery. After the end of the surgery, tests for regaining cognitive function and airway reflexes were carried out, and different time intervals were recorded. The values were recorded and compared for the variances while considering the P < 0.05 as significant. Results The mean T1 was 8.19 ± 3.28 min for sevoflurane and was 5.82 ± 4.02 min. There was no significant variance between the two agents for the T1, 2 (P = 0.013 and 0.110 respectively). After the inhalation anesthetics ceased at T1, desflurane patients responded to verbal commands more quickly than sevoflurane patients (5.824.02 vs. 8.193.28 min). The SOMCT and swallowing test were similarly completed more quickly by desflurane-treated patients than by sevoflurane-treated patients (T3VST4) (13.693.37 vs. 10.024.86 min, P = 0.008 and (14.094.30 vs. 9.824.50 min, P 0.001, respectively). For the T3, 4-time intervals, there was a significant difference between the sevoflurane and desflurane groups. Conclusion Desflurane causes patients to recover more quickly from laparoscopic cholecystectomy under controlled circumstances than sevoflurane does.
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Affiliation(s)
- Anish Nelson
- Department of Oral and Maxillofacial Surgery, Nitte (Deemed to be University), AB Shetty Memorial Institute of Dental Sciences (ABSMIDS), Mangalore, Karnataka, India
| | - S. Sudhakar
- Department of Anaesthesiology, Apollo Institute of Medical Sciences and Research, Murukambattu, Chittoor, Andhra Pradesh, India
| | - Jagannath Mishra
- Department of Anaesthesiology, PRM Medical College, Baripada, Odisha, India
| | - Hemanth Kumar Tirupathi
- Department of Anaesthesia and Critical Care, Pt B D Sharma University of Health Sciences, PGIMS, Rohtak, Haryana, India
| | - Vishnu Gowtham Marella
- Department of Oral and Maxillofacial Surgery, Sri Sai College of Dental Surgery, Vikarabad, Telangana, India
| | - Vishal S. Kudagi
- Department of Orthodontics, JSS Dental College and Hospital, Mysore, Karnataka, India
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Biswas A, McNamara C, Gowda VK, Gala F, Sudhakar S, Sidpra J, Vari MS, Striano P, Blaser S, Severino M, Batzios S, Mankad K. Neuroimaging Features of Biotinidase Deficiency. AJNR Am J Neuroradiol 2023; 44:328-333. [PMID: 36759144 PMCID: PMC10187823 DOI: 10.3174/ajnr.a7781] [Citation(s) in RCA: 1] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 01/04/2023] [Indexed: 02/11/2023]
Abstract
Biotinidase deficiency is an autosomal recessive condition caused by pathogenic variants in the BTD gene. Resultant deficiency of free biotin leads to impaired activity of the enzyme carboxylase and related neurologic, dermatologic, and ocular symptoms. Many of these are reversible on treatment, but early recognition and commencement of biotin supplementation are critical. This practice is especially important in countries where routine neonatal screening for biotinidase deficiency is not performed. In this report comprising 14 patients from multiple centers, we demonstrate the MR imaging patterns of this disorder at various age groups. Knowledge of these patterns in the appropriate clinical context will help guide early diagnosis of this treatable metabolic disorder.
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Affiliation(s)
- A Biswas
- From the Department of Diagnostic Imaging (A.B., S. Blaser), The Hospital for Sick Children, Toronto, Ontario, Canada
- Departments of Neuroradiology (A.B., C.M., S.S., J.S., K.M.)
| | - C McNamara
- Departments of Neuroradiology (A.B., C.M., S.S., J.S., K.M.)
| | - V K Gowda
- Department of Pediatric Neurology (V.K.G.), Indira Gandhi Institute of Child Health, Bengaluru, Karnataka, India
| | - F Gala
- Department of Radiodiagnosis (F.G.), Bai Jerbai Wadia Hospital, Mumbai, Maharashtra, India
| | - S Sudhakar
- Departments of Neuroradiology (A.B., C.M., S.S., J.S., K.M.)
| | - J Sidpra
- Departments of Neuroradiology (A.B., C.M., S.S., J.S., K.M.)
- Developmental Biology and Cancer Section (J.S.), University College London Great Ormond Street Institute of Child Health, London, UK
| | - M S Vari
- Pediatric Neurology and Muscular Diseases Unit (M.S.V., P.S.)
| | - P Striano
- Pediatric Neurology and Muscular Diseases Unit (M.S.V., P.S.)
| | - S Blaser
- From the Department of Diagnostic Imaging (A.B., S. Blaser), The Hospital for Sick Children, Toronto, Ontario, Canada
| | - M Severino
- Neuroradiology Unit (M.S.), Istituto di Ricovero e Cura a Carattere Scientifico Istituto Giannina Gaslini, Genoa, Italy
| | - S Batzios
- Paediatric Metabolic Medicine (S. Batzios), Great Ormond Street Hospital for Children, National Health Service Foundation Trust, London, UK
| | - K Mankad
- Departments of Neuroradiology (A.B., C.M., S.S., J.S., K.M.)
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Pavani B, Anand M, Sudhakar S. Physiotherapy and Physical Activity: A Cross-Sectional Survey Exploring Physical Activity Promotion and the Physical Activity among Physiotherapists in Bangalore. CM 2023. [DOI: 10.18137/cardiometry.2023.26.418422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023] Open
Abstract
Introduction: Physical action is a significant viewpoint in our everyday life. In India, around 36.9% of the population is inactive physically. Physical action has a significant medical advantage related to increasingly ideal natural cardiovascular disease hazards considering youngsters and teenagers’ profiles. Healthy habits are progressively significant in physiotherapists as they are future advisors who dismiss embracing a healthy way of life and are bound to neglect to set up well-being advancement and open doors for their patients. Aim of the Study: The study's objective is to identify the physical activity levels among the Physiotherapist in Bangalore. Material and Method: This study involves 100 Physiotherapists between the ages of 22-50 years of male and female genders in Bangalore. A self-reported physical activity assessment was taken using the IPAQ (International Physical Activity Questionnaire) based on inclusion and exclusion criteria. Outcome Measure: Participants self-reported physical activity using the IPAQ Questionnaire, which comprises 4 generic items (Occupation, leisure time, domestic, transport). Analysis: Interpreting the data using the SPSS V. 20 software. Conclusion: This study shows that 50% of physiotherapists are physically active and 36% are moderate, and 14% are low in physical activity in Bangalore.
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Papandreou A, Soo AKS, Spaull R, Mankad K, Kurian MA, Sudhakar S. Expanding the Spectrum of Early Neuroradiologic Findings in β Propeller Protein-Associated Neurodegeneration. AJNR Am J Neuroradiol 2022; 43:1810-1814. [PMID: 36328404 DOI: 10.3174/ajnr.a7693] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Accepted: 10/01/2022] [Indexed: 11/06/2022]
Abstract
BACKGROUND AND PURPOSE β propeller protein-associated neurodegeneration (BPAN) is the most common neurodegeneration with brain iron accumulation disorder. Typical radiologic findings are T2 hypointensity in the substantia nigra and globus pallidus, as well as a T1 halolike substantia nigra hyperintense signal surrounding a hypointense central area. However, these findings are often subtle or absent on initial scans, risking diagnostic delay. In this study, we sought to investigate radiologic findings that could aid in the early diagnosis of BPAN. MATERIALS AND METHODS A retrospective cohort study was performed in a national referral center, including all pediatric patients with confirmed pathogenic WDR45 mutations and consistent clinical semiology. MR imaging findings were independently reported by 2 pediatric neuroradiologists. RESULTS Fifteen patients were included in the study, and 27 scans were available for review. The initial neuroimaging study was undertaken at a mean age of 3.2 years. Iron deposition was uncommon in patients younger than 4 years of age. Neuroradiologic features from very early on included dentate, globus pallidus, and substantia nigra swelling, as well as a thin corpus callosum and small pontine volume. Optic nerve thinning was also present in all patients. CONCLUSIONS Our study highlights the key early MR imaging features of BPAN. Iron deposition in the globus pallidus and substantia nigra is not common in children younger than 4 years of age; clinicians should not be deterred from suspecting BPAN in the presence of the findings described in this study and the appropriate clinical context.
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Affiliation(s)
- A Papandreou
- From the Molecular Neurosciences (A.P., A.K.S.S., R.S., M.A.K.), Developmental Neurosciences Programme, Zayed Centre for Research into Rare Disease in Children, University College London Great Ormond Street Institute of Child Health, London, UK .,Departments of Neurology (A.P., A.K.S.S., R.S., M.A.K.)
| | - A K S Soo
- From the Molecular Neurosciences (A.P., A.K.S.S., R.S., M.A.K.), Developmental Neurosciences Programme, Zayed Centre for Research into Rare Disease in Children, University College London Great Ormond Street Institute of Child Health, London, UK.,Departments of Neurology (A.P., A.K.S.S., R.S., M.A.K.)
| | - R Spaull
- From the Molecular Neurosciences (A.P., A.K.S.S., R.S., M.A.K.), Developmental Neurosciences Programme, Zayed Centre for Research into Rare Disease in Children, University College London Great Ormond Street Institute of Child Health, London, UK.,Departments of Neurology (A.P., A.K.S.S., R.S., M.A.K.)
| | - K Mankad
- Neuroradiology (K.M., S.S.), Great Ormond Street Hospital for Children National Health Service Foundation Trust, London, UK
| | - M A Kurian
- From the Molecular Neurosciences (A.P., A.K.S.S., R.S., M.A.K.), Developmental Neurosciences Programme, Zayed Centre for Research into Rare Disease in Children, University College London Great Ormond Street Institute of Child Health, London, UK.,Departments of Neurology (A.P., A.K.S.S., R.S., M.A.K.)
| | - S Sudhakar
- Neuroradiology (K.M., S.S.), Great Ormond Street Hospital for Children National Health Service Foundation Trust, London, UK
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Whitehead MT, Barkovich MJ, Sidpra J, Alves CA, Mirsky DM, Öztekin Ö, Bhattacharya D, Lucato LT, Sudhakar S, Taranath A, Andronikou S, Prabhu SP, Aldinger KA, Haldipur P, Millen KJ, Barkovich AJ, Boltshauser E, Dobyns WB, Mankad K. Refining the Neuroimaging Definition of the Dandy-Walker Phenotype. AJNR Am J Neuroradiol 2022; 43:1488-1493. [PMID: 36137655 PMCID: PMC9575531 DOI: 10.3174/ajnr.a7659] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 06/28/2022] [Indexed: 01/26/2023]
Abstract
BACKGROUND AND PURPOSE The traditionally described Dandy-Walker malformation comprises a range of cerebellar and posterior fossa abnormalities with variable clinical severity. We aimed to establish updated imaging criteria for Dandy-Walker malformation on the basis of cerebellar development. MATERIALS AND METHODS In this multicenter study, retrospective MR imaging examinations from fetuses and children previously diagnosed with Dandy-Walker malformation or vermian hypoplasia were re-evaluated, using the choroid plexus/tela choroidea location and the fastigial recess shape to differentiate Dandy-Walker malformation from vermian hypoplasia. Multiple additional measures of the posterior fossa and cerebellum were also obtained and compared between Dandy-Walker malformation and other diagnoses. RESULTS Four hundred forty-six examinations were analyzed (174 fetal and 272 postnatal). The most common diagnoses were Dandy-Walker malformation (78%), vermian hypoplasia (14%), vermian hypoplasia with Blake pouch cyst (9%), and Blake pouch cyst (4%). Most measures were significant differentiators of Dandy-Walker malformation from non-Dandy-Walker malformation both pre- and postnatally (P < .01); the tegmentovermian and fastigial recess angles were the most significant quantitative measures. Posterior fossa perimeter and vascular injury evidence were not significant differentiators pre- or postnatally (P > .3). The superior posterior fossa angle, torcular location, and vermian height differentiated groups postnatally (P < .01), but not prenatally (P > .07). CONCLUSIONS As confirmed by objective measures, the modern Dandy-Walker malformation phenotype is best defined by inferior predominant vermian hypoplasia, an enlarged tegmentovermian angle, inferolateral displacement of the tela choroidea/choroid plexus, an obtuse fastigial recess, and an unpaired caudal lobule. Posterior fossa size and torcular location should be eliminated from the diagnostic criteria. This refined phenotype may help guide future study of the numerous etiologies and varied clinical outcomes.
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Affiliation(s)
- M T Whitehead
- From the Department of Radiology (M.T.W.)
- Prenatal Pediatrics Institute (M.T.W.), Children's National Hospital, Washington DC
- The George Washington University School of Medicine and Health Sciences (M.T.W.), Washington DC
- Division of Neuroradiology (M.T.W., C.A.A., S.A.), Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
- Department of Radiology, Perelman School of Medicine (M.T.W., S.A), University of Pennsylvania, Philadelphia, Pennsylvania
| | - M J Barkovich
- Department of Radiology and Biomedical Imaging (M.J.B., A.J.B.) University of California, San Francisco, San Francisco, California
- Neuroradiology Section (M.J.B., A.J.B.), University of California, San Francisco-Benioff Children's Hospital, San Francisco, California
| | - J Sidpra
- Developmental Biology and Cancer Section (J.S., K.M.), University College London Great Ormond Street Institute of Child Health, London, UK
- Department of Neuroradiology (J.S., S.S., K.M.), Great Ormond Street Hospital for Children National Health Service Foundation Trust, London, UK
| | - C A Alves
- Division of Neuroradiology (M.T.W., C.A.A., S.A.), Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - D M Mirsky
- Department of Radiology (D.M.M.), Children's Hospital Colorado, University of Colorado School of Medicine, Aurora, Colorado
| | - Ö Öztekin
- Department of Neuroradiology (Ö.Ö.), Bakırçay University, Çiğli Education and Research Hospital, İzmir, Turkey
| | - D Bhattacharya
- Department of Neuroradiology (D.B.), Royal Victoria Hospital, Belfast, UK
| | - L T Lucato
- Division of Diagnostic Neuroradiology (L.T.L.), Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil
| | - S Sudhakar
- Department of Neuroradiology (J.S., S.S., K.M.), Great Ormond Street Hospital for Children National Health Service Foundation Trust, London, UK
| | - A Taranath
- Department of Medical Imaging (A.T.), Women's and Children's Hospital, North Adelaide, South Australia, Australia
- Faculty of Medicine (A.T.), University of Adelaide, Adelaide, South Australia, Australia
| | - S Andronikou
- Division of Neuroradiology (M.T.W., C.A.A., S.A.), Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
- Department of Radiology, Perelman School of Medicine (M.T.W., S.A), University of Pennsylvania, Philadelphia, Pennsylvania
| | - S P Prabhu
- Department of Neuroradiology (S.P.P.), Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts
| | - K A Aldinger
- Center for Integrative Brain Research (K.A.A., P.H., K.J.M.), Seattle Children's Research Institute, Seattle, Washington
| | - P Haldipur
- Center for Integrative Brain Research (K.A.A., P.H., K.J.M.), Seattle Children's Research Institute, Seattle, Washington
| | - K J Millen
- Center for Integrative Brain Research (K.A.A., P.H., K.J.M.), Seattle Children's Research Institute, Seattle, Washington
- University of Washington School of Medicine (K.J.M.), Seattle, Washington
| | - A J Barkovich
- Department of Radiology and Biomedical Imaging (M.J.B., A.J.B.) University of California, San Francisco, San Francisco, California
- Neuroradiology Section (M.J.B., A.J.B.), University of California, San Francisco-Benioff Children's Hospital, San Francisco, California
| | - E Boltshauser
- Department of Pediatric Neurology (E.B.), University Children's Hospital, Zürich, Switzerland
| | - W B Dobyns
- Department of Genetics and Metabolism (W.B.D.), Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota
| | - K Mankad
- Developmental Biology and Cancer Section (J.S., K.M.), University College London Great Ormond Street Institute of Child Health, London, UK
- Department of Neuroradiology (J.S., S.S., K.M.), Great Ormond Street Hospital for Children National Health Service Foundation Trust, London, UK
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Paul S, Dinesh Kumar SM, Syamala SS, Balakrishnan S, Vijayan V, Arumugaswami V, Sudhakar S. Identification, tissue specific expression analysis and functional characterization of arrestin gene (ARRDC) in the earthworm Eudrilus eugeniae: a molecular hypothesis behind worm photoreception. Mol Biol Rep 2022; 49:4225-4236. [PMID: 35211863 DOI: 10.1007/s11033-022-07256-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Accepted: 02/09/2022] [Indexed: 11/25/2022]
Abstract
BACKGROUND The arrestin domain containing proteins (ARRDCs) are crucial adaptor proteins assist in signal transduction and regulation of sensory physiology. The molecular localization of the ARRDC gene has been confined mainly to the mammalian system while in invertebrates the expression pattern was not addressed significantly. The present study reports the identification, tissue specific expression and functional characterization of an ARRDC transcript in earthworm, Eudrilus eugeniae. METHODS AND RESULTS The coding region of earthworm ARRDC transcript was 1146 bp in length and encoded a protein of 381 amino acid residues. The worm ARRDC protein consists of conserved N-terminal and C-terminal regions and showed significant homology with the ARRDC3 sequence of other species. The tissue specific expression analysis through whole mount in-situ hybridization denoted the expression of ARRDC transcript in the central nervous system of the worm which includes cerebral ganglion and ventral nerve cord. Besides, the expression of ARRDC gene was observed in the epidermal region of earthworm skin. The functional characterization of ARRDC gene was assessed through siRNA silencing and the gene was found to play key role in the light sensing ability and photophobic movement of the worm. CONCLUSIONS The neuronal and dermal expression patterns of ARRDC gene and its functional characterization hypothesized the role of the gene in assisting the photosensory cells to regulate the process of photoreception and phototransduction in the worm.
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Affiliation(s)
- Sayan Paul
- Department of Biotechnology, Manonmaniam Sundaranar University, Tirunelveli, Tamil Nadu, 627012, India
- Centre for Cardiovascular Biology and Disease, Institute for Stem Cell Science and Regenerative Medicine (inStem), Bangalore, 560065, India
| | - Sudalai Mani Dinesh Kumar
- Department of Biotechnology, Manonmaniam Sundaranar University, Tirunelveli, Tamil Nadu, 627012, India
| | - Sandhya Soman Syamala
- Department of Biotechnology, Manonmaniam Sundaranar University, Tirunelveli, Tamil Nadu, 627012, India
| | | | - Vijithkumar Vijayan
- Department of Biotechnology, Manonmaniam Sundaranar University, Tirunelveli, Tamil Nadu, 627012, India
| | | | - Sivasubramaniam Sudhakar
- Department of Biotechnology, Manonmaniam Sundaranar University, Tirunelveli, Tamil Nadu, 627012, India.
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Benjamin P, Sudhakar S, D’Arco F, Löbel U, Carney O, Roux CJ, Boddaert N, Hemingway C, Eleftheriou D, Mankad K. Spectrum of Neuroradiologic Findings Associated with Monogenic Interferonopathies. AJNR Am J Neuroradiol 2022; 43:2-10. [PMID: 34949589 PMCID: PMC8757560 DOI: 10.3174/ajnr.a7362] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 06/29/2021] [Indexed: 01/03/2023]
Abstract
The genetic interferonopathies are a heterogeneous group of disorders thought to be caused by the dysregulated expression of interferons and are now commonly considered in the differential diagnosis of children presenting with recurrent or persistent inflammatory phenotypes. With emerging therapeutic options, recognition of these disorders is increasingly important, and neuroimaging plays a vital role. In this article, we discuss the wide spectrum of neuroradiologic features associated with monogenic interferonopathies by reviewing the literature and illustrate these with cases from our institutions. These cases include intracerebral calcifications, white matter T2 hyperintensities, deep WM cysts, cerebral atrophy, large cerebral artery disease, bilateral striatal necrosis, and masslike lesions. A better understanding of the breadth of the neuroimaging phenotypes in conjunction with clinical and laboratory findings will enable earlier diagnosis and direct therapeutic strategies.
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Affiliation(s)
- P. Benjamin
- From the Department of Radiology (P.B., S.S., F.D., U.L., O.C., K.M.), Great Ormond Street Hospital for Children National Health Service Foundation Trust, London, UK
| | - S. Sudhakar
- From the Department of Radiology (P.B., S.S., F.D., U.L., O.C., K.M.), Great Ormond Street Hospital for Children National Health Service Foundation Trust, London, UK
| | - F. D’Arco
- From the Department of Radiology (P.B., S.S., F.D., U.L., O.C., K.M.), Great Ormond Street Hospital for Children National Health Service Foundation Trust, London, UK
| | - U. Löbel
- From the Department of Radiology (P.B., S.S., F.D., U.L., O.C., K.M.), Great Ormond Street Hospital for Children National Health Service Foundation Trust, London, UK
| | - O. Carney
- From the Department of Radiology (P.B., S.S., F.D., U.L., O.C., K.M.), Great Ormond Street Hospital for Children National Health Service Foundation Trust, London, UK
| | - C.-J. Roux
- Department of Paediatric Radiology (C.-J.R., N.B.), Hôpital Necker–Enfants Malades, Paris, France
| | - N. Boddaert
- Department of Paediatric Radiology (C.-J.R., N.B.), Hôpital Necker–Enfants Malades, Paris, France,Institut Imagine (N.B.), Institut National de la Santé et de la Recherche Médicale Union Mutualiste Retraite 1163, Paris, France
| | - C. Hemingway
- Department of Paediatric Neurology (C.H.), Great Ormond Street Hospital, London, UK
| | - D. Eleftheriou
- Infection, Inflammation, and Immunology Section (D.E.), University College London Great Ormond Street Institute of Child Health, London, UK
| | - K. Mankad
- From the Department of Radiology (P.B., S.S., F.D., U.L., O.C., K.M.), Great Ormond Street Hospital for Children National Health Service Foundation Trust, London, UK
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Parekh N, Sudhakar S. Study on Dynamic Balance in College Students with Flat Foot and with Normal Arched Foot using Y- Balance Test. JPRI 2021. [DOI: 10.9734/jpri/2021/v33i62a35157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Introduction: Flat foot deformity is mostly found in adults. Talus's average turn and plantar flexion are detailed, as well as calcaneus eversion, a disintegrated average curve, and forefoot snatching. Balance is a basic requirement for performing daily activities, and it plays a critical role in maintaining bodily posture. Lower limb work has included balance as a component. The balance might be affected by a little change in strength or any instability in the muscles or joints of the lower limb.
Aim of Study: The purpose of this study is to determine Dynamic balance in college students with flat feet and normal arced feet using Y-Balance test.
Materials and Methods: A total of 60 participants were recruited from Bangalore's Krupanidhi College of Physiotherapy who met the inclusion criteria. All of the subjects underwent a Navicular Drop Test and a Y-balance test.
Outcome Measures: To distinguish between Flat Foot and Normal Arched Foot, the Navicular Drop Test was utilised. The Dynamic Balance was assessed using the Y-balance test.
Statistical Tool: Unpaired t-test. Result: The P-value for the Right foot is 0.0005 and for the Left foot is 0.004, and the Mean difference for the Right side is 6.75033 and for the Left side is 8.6616, indicating that there is a significant difference in dynamic balance stability in students with Flat feet compared to students with Normal feet.
Conclusion: The study finds that students with Flat Feet have a deficit in Dynamic Balance when compared to students with Normal Arched Feet.
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11
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Singh A, Bhat V, Sudhakar S, Namachivayam A, Gangadharan C, Pulchan C, Sigamani A. Multicentric study to evaluate the effectiveness of Thermalytix as compared with standard screening modalities in subjects who show possible symptoms of suspected breast cancer. BMJ Open 2021; 11:e052098. [PMID: 34667011 PMCID: PMC8527152 DOI: 10.1136/bmjopen-2021-052098] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
INTRODUCTION Machine learning in computer-assisted diagnostics improves sensitivity of image analysis and reduces time and effort for interpretation. Compared to standard mammograms, a thermal scan is easily scalable and is a safer screening tool. We evaluate the performance of Thermalytix (an automated thermographic screening algorithm) compared with other standard breast cancer screening modalities. METHODS A prospective multicentre study was conducted to assess the non-inferiority of sensitivity of Thermalytix (test device) to that of standard modalities in detecting malignancy in subjects who show possible symptoms of suspected breast cancer. Standard screening modalities and Thermalytix were obtained and interpreted independently in a blinded fashion. A receiver operating characteristic (ROC) curve was constructed to identify the best cut-off point, non-inferiority margin of ≥10% to demonstrate the non-inferiority. RESULTS We recruited 258 symptomatic women who first underwent a thermal scan, followed by mammogram and/or ultrasound. At Youden's Index of ROC curve, the test device had a sensitivity of 82.5% (95% CI 73.2 to 91.9) and specificity of 80.5% (95% CI 75.0 to 86.1) as compared with diagnostic mammogram, which had sensitivity of 92% (95% CI 80.7 to 97.8) and specificity of 45.9% (95% CI 34.3 to 57.9) when BI-RADS 3 (Breast Imaging-Reporting and Data System) was considered as test-positive. The overall area under the curve (AUC) was 0.845. For women aged <45 years, the test device had a sensitivity and specificity of 87.0% (95% CI 66.4 to 97.2) and 80.6% (95% CI 72.9 to 86.9), respectively. For women aged ≥45 years, the sensitivity and specificity were 80.5% (95% CI 65.1 to 91.2) and 86.5% (95% CI 78.0 to 92.6, respectively). CONCLUSION We evaluated Thermalytix, a new AI-based modality for detecting breast cancer. The high AUC in both women under 45 years and above 45 years shows the potential of Thermalytix to be a supplemental diagnostic modality for all ages. Further evaluation on larger sample size is needed. TRIAL REGISTRATION NUMBER CTRI/2017/10/0 10 115.
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Affiliation(s)
- Akshita Singh
- Department of Surgical Breast Oncology, Mazumdar Shaw Medical Centre, Narayana Hrudayalaya Limited, Narayana Hrudayalaya Health City, Bangalore, Karnataka, India
| | - Venkatraman Bhat
- Department of Radiology, Mazumdar Shaw Medical Centre, Narayana Hrudayalaya Limited, Narayana Hrudayalaya Health City, Bangalore, Karnataka, India
| | - S Sudhakar
- Department of Radiology, HCG Cancer Hospital, HealthCare Global Enterprises Ltd, Bangalore, Karnataka, India
| | | | - Charitha Gangadharan
- Department of Clinical Research, Narayana Hrudayalaya Limited, Narayana Hrudayalaya Health City, Bangalore, Karnataka, India
| | - Candice Pulchan
- Department of Radiology (Ultrasonographer III (Ag)), South-West Regional Health Authority, San Fernando, Trinidad and Tobago
| | - Alben Sigamani
- Department of Clinical Research, Narayana Hrudayalaya Health City, Bangalore, Karnataka, India
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12
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Muthumayil K, Karuppathal R, Jayasankar T, Aruna Devi B, Prakash NB, Sudhakar S. A Big Data Analytical Approach for Prediction of Cancer Using Modified K-Nearest Neighbour Algorithm. j med imaging hlth inform 2021. [DOI: 10.1166/jmihi.2021.3737] [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: 11/23/2022]
Abstract
Today, sensors generate vast amounts of data in different fields such as hospitals, the transport sector, social media, and so on. In hospitals, the use of sensors that are installed in the patient’s body to monitor the pulse rate, heartbeats, head movement, eyes, and other body
parts. Every day, these collected data are stored in local data servers and database servers by various sensors that require effective handling of these data. Sensors are primarily used in most of the IoT applications in everyday life from which smart city plays a crucial role. The aim of
the work is to address the application of big data in healthcare and life science, including different types of data that involve special attention in processing. This work focuses on the use of large-data analytical techniques to process medical data. A large volume of unstructured cancer
database is considered to identify and predict different types of cancer such as breast cancer, lung cancer, blood cancer, and so forth. This research involves the segmentation of thousands of records on cancer forms in a broad cancer database into various segmented databases. Using KNN algorithm
this segmentation, classification and prediction will be achieved.
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Affiliation(s)
- K. Muthumayil
- Department of Information Technology, PSNA College of Engineering and Technology, Dindigul 624622, Tamilnadu, India
| | - R. Karuppathal
- Department of Information Technology, PSNA College of Engineering and Technology, Dindigul 624622, Tamilnadu, India
| | - T. Jayasankar
- Department of Electronics and Communication Engineering, University College of Engineering, Bharathidasan Institute of Technology Campus, Anna University, Tiruchirappalli 620024, Tamilnadu, India
| | - B. Aruna Devi
- Department of Electronics and Communication Engineering, Dr. N.G.P Institute of Technology, Coimbatore 641048, Tamilnadu, India
| | - N. B. Prakash
- Department of Electrical and Electronics Engineering, National Engineering College, Kovilpatti 628503, Tamilnadu, India
| | - S. Sudhakar
- Department of Computer Science and Engineering, PSN College of Engineering and Technology, Tirunelveli 627152, Tamil Nadu, India
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13
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Punarselvam E, Sikkandar MY, Bakouri M, Prakash NB, Jayasankar T, Sudhakar S. RETRCATED ARTICLE: Different loading condition and angle measurement of human lumbar spine MRI image using ANSYS. J Ambient Intell Human Comput 2021; 12:4991-5004. [DOI: 10.1007/s12652-020-01939-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Accepted: 03/28/2020] [Indexed: 08/29/2023]
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14
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Rossi-Espagnet MC, Sudhakar S, Fontana E, Longo D, Davison J, Petengill AL, Bevivino E, Pacheco FT, da Rocha AJ, Hanagandi P, Soldatelli M, Mankad K, do Amaral LLF. Neuroradiologic Phenotyping of Galactosemia: From the Neonatal Form to the Chronic Stage. AJNR Am J Neuroradiol 2021; 42:590-596. [PMID: 33478945 DOI: 10.3174/ajnr.a7016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Accepted: 10/23/2020] [Indexed: 11/07/2022]
Abstract
Galactosemia is a rare genetic condition caused by mutation of enzymes involved in galactose and glucose metabolism. The varying clinical spectrum reflects the genetic complexity of this entity manifesting as acute neonatal toxicity syndrome, requiring prompt diagnosis and treatment, to more insidious clinical scenarios as observed in the subacute and chronic presentations. The current literature predominantly focuses on the long-standing sequelae of this disease. The purpose of this multicenter clinical report comprising 17 patients with galactosemia is to highlight the MR imaging patterns encompassing the whole spectrum of galactosemia, emphasizing the 3 main clinical subtypes: 1) acute neonatal presentation, with predominant white matter edema; 2) subacute clinical onset with a new finding called the "double cap sign"; and 3) a chronic phase of the disease with heterogeneous imaging findings. The knowledge of these different patterns together with MR spectroscopy and the clinical presentation may help in prioritizing galactosemia over other neonatal metabolic diseases and prevent possible complications.
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Affiliation(s)
- M C Rossi-Espagnet
- From the Neuroradiology Unit (M.C.R.-E., E.F., D.L.)
- Neuroradiology Unit (M.C.R.-E.), Neuroscience, Mental Health and Sensory Organs Department, University Sapienza, Rome, Italy
| | | | - E Fontana
- From the Neuroradiology Unit (M.C.R.-E., E.F., D.L.)
| | - D Longo
- From the Neuroradiology Unit (M.C.R.-E., E.F., D.L.)
| | - J Davison
- Paediatric Metabolic Medicine (J.D.), Great Ormond Street Hospital National Health Service Foundation Trust, London, UK
| | - A L Petengill
- Neuroradiology Department, (A.L.P., F.T.P., A.J.d.R., L.L.F.d.A.), Hospital da Santa Casa de Misericórdia de São Paulo, São Paulo, Brazil
| | - E Bevivino
- Division of Metabolism (E.B.), Bambino Gesù' Children's Hospital, Rome, Italy
| | - F T Pacheco
- Neuroradiology Department, (A.L.P., F.T.P., A.J.d.R., L.L.F.d.A.), Hospital da Santa Casa de Misericórdia de São Paulo, São Paulo, Brazil
| | - A J da Rocha
- Neuroradiology Department, (A.L.P., F.T.P., A.J.d.R., L.L.F.d.A.), Hospital da Santa Casa de Misericórdia de São Paulo, São Paulo, Brazil
| | - P Hanagandi
- Department of Medical Imaging (P.H.), King Abdulaziz Medical City, Ministry of National Guard Health Affairs, Riyadh, Saudi Arabia
| | - M Soldatelli
- Neuroradiology Department (M.S., L.L.F.d.A.), BP Medicina Diagnóstica, Hospital da Beneficência Portuguesa de São Paulo, São Paulo, Brazil
| | - K Mankad
- Neuroradiology Unit (S.S., K.M.)
| | - L L F do Amaral
- Neuroradiology Department, (A.L.P., F.T.P., A.J.d.R., L.L.F.d.A.), Hospital da Santa Casa de Misericórdia de São Paulo, São Paulo, Brazil
- Neuroradiology Department (M.S., L.L.F.d.A.), BP Medicina Diagnóstica, Hospital da Beneficência Portuguesa de São Paulo, São Paulo, Brazil
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15
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Singh A, Karmegam N, Singh GS, Bhadauria T, Chang SW, Awasthi MK, Sudhakar S, Arunachalam KD, Biruntha M, Ravindran B. Earthworms and vermicompost: an eco-friendly approach for repaying nature's debt. Environ Geochem Health 2020; 42:1617-1642. [PMID: 31974693 DOI: 10.1007/s10653-019-00510-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Accepted: 12/25/2019] [Indexed: 06/10/2023]
Abstract
The steady increase in the world's population has intensified the need for crop productivity, but the majority of the agricultural practices are associated with adverse effects on the environment. Such undesired environmental outcomes may be mitigated by utilizing biological agents as part of farming practice. The present review article summarizes the analyses of the current status of global agriculture and soil scenarios; a description of the role of earthworms and their products as better biofertilizer; and suggestions for the rejuvenation of such technology despite significant lapses and gaps in research and extension programs. By maintaining a close collaboration with farmers, we have recognized a shift in their attitude and renewed optimism toward nature-based green technology. Based on these relations, it is inferred that the application of earthworm-mediated vermitechnology increases sustainable development by strengthening the underlying economic, social and ecological framework.
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Affiliation(s)
- Archana Singh
- Institute of Environment and Sustainable Development, Banaras Hindu University, Varanasi, Uttar Pradesh, 221 011, India
| | - Natchimuthu Karmegam
- Department of Botany, Government Arts College (Autonomous), Salem, Tamil Nadu, 636 007, India
| | - Gopal Shankar Singh
- Institute of Environment and Sustainable Development, Banaras Hindu University, Varanasi, Uttar Pradesh, 221 011, India.
| | - Tunira Bhadauria
- Department of Zoology, Feroze Gandhi College, Raebareli, Uttar Pradesh, 229 001, India
| | - Soon Woong Chang
- Department of Evironmental Energy and Engineering, Kyonggi University, Youngtong Gu, Suwon, 16227, South Korea
| | - Mukesh Kumar Awasthi
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, Shaanxi Province, China
| | - Sivasubramaniam Sudhakar
- Department of Biotechnology, Manonmaniam Sundaranar University, Tirunelveli, Tamil Nadu, 627 012, India
| | - Kantha Deivi Arunachalam
- Center for Environmental Nuclear Research, Directorate of Research, SRM institute of science and technology, Kattankulathur, Chennai, Tamil Nadu, 603 203, India
| | - Muniyandi Biruntha
- Department of Animal Health and Management, Alagappa University, Karaikudi, Tamil Nadu, 630 003, India
| | - Balasubramani Ravindran
- Department of Evironmental Energy and Engineering, Kyonggi University, Youngtong Gu, Suwon, 16227, South Korea.
- Department for Management of Science and Technology Development, Ton Duc Thang University, Ho Chi Minh City, Vietnam.
- Faculty of Environment and Labour Safety, Ton Duc Thang University, Ho Chi Minh City, Vietnam.
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16
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Arumugam J, Suresh N, Selvapandiyan M, Sudhakar S, Prasath M. Effect of NaCl on the properties of sulphamic acid single crystals. Heliyon 2019; 5:e01988. [PMID: 31372525 PMCID: PMC6656999 DOI: 10.1016/j.heliyon.2019.e01988] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [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: 12/05/2018] [Revised: 03/28/2019] [Accepted: 06/18/2019] [Indexed: 12/01/2022] Open
Abstract
Single crystals of pure and NaCl doped sulphamic acid (SA) were grown by slow evaporation method at room temperature. The lattice parameters and structure were determined by using single crystal and powder X-ray diffraction analyses. The presence of dopant in the SA lattice was affirmed by EDAX analysis. UV-Vis spectra show maximum transmittance in the visible region. The band gap energies were found to be 6.06 eV and 5.70 eV for pure and NaCl doped SA crystals respectively. From the PL specta the emission were observed at 335 and 424 nm for pure and 340 and 428 nm for doped SA crystal. The thermal stability of the grown crystals were analyzed by thermogravimetric and differential thermal analysis (TGA/DTA) and revealed that the grown crystals were thermally stable up to 331 °C and 334 °C for pure and NaCl doped SA. Vickers microhardness study reveals that the hardness of the crystals is increase with increasing load. The photoconductivity study shows that the grown crystals are negative photoconductive nature. The Laser Damage Threshold (LDT) indicates the grown crystals have good resistance to laser radiation than a standard Potassium dihydrogen phosphate (KDP) crystal. The Z-scan technique was employed to determine the nonlinear refractive index, nonlinear optical absorption and third order nonlinear optical (TONLO) susceptibility of the grown crystals using He–Ne laser.
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Affiliation(s)
- J Arumugam
- Department of Physics, Periyar University PG Extension Centre, Dharmapuri, 636 705, Tamil Nadu, India.,Department of Physics, Sri Vidya Mandir Arts and Science College, Uthangarai, 636 902, Tamil Nadu, India
| | - N Suresh
- Department of Physics, Periyar University PG Extension Centre, Dharmapuri, 636 705, Tamil Nadu, India.,Department of Physics, Sri Vidya Mandir Arts and Science College, Uthangarai, 636 902, Tamil Nadu, India
| | - M Selvapandiyan
- Department of Physics, Periyar University PG Extension Centre, Dharmapuri, 636 705, Tamil Nadu, India
| | - S Sudhakar
- Central Electrochemical Research Institute, Karaikudi, 630 003, Tamil Nadu, India
| | - M Prasath
- Department of Physics, Periyar University PG Extension Centre, Dharmapuri, 636 705, Tamil Nadu, India
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Manjunath G, Sudhakar S, Kakileti S, Madhu H, Singh A. Abstract P6-02-12: Artificial Intelligence over thermal images for radiation-free breast cancer screening. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-p6-02-12] [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
Introduction: Breast cancer is the largest cause of cancer deaths in women today. NIRAMAI has developed a novel solution for detecting early stage breast cancer in women of all age groups. It is low cost, non-contact and portable solution. This radiation-free solution also works on dense breasts and hence is applicable beyond developing countries. The core of the solution is a Computer Aided Diagnostics engine called Thermalytix, which uses Artificial Intelligence algorithms on high resolution thermal images.
In this paper, we present a comparative analysis of Thermalytix solution with Mammography, the standard screening modality, in a retrospective trial that was conducted across 3 reputed cancer hospitals in India.
Aim: To compare the sensitivity, specificity, NPV and PPV of Thermalytix with Mammography.
Methods: A multisite comparative study was performed on 194 patients across 3 reputed cancer hospitals in India with informed consent from subjects and ethics committee approval of respective hospitals. Every person who was going for a mammography test was made to undergo the non-invasive Thermalytix test prior to mammography examination. As per standard of care in India, all women who had a suspicious lesion in Mammo was sent to Ultrasound and then biopsy. 93 of the 194 subjects enrolled were found to be malignant by this standard procedure (9 of them did not have a biopsy report).
Niramai Thermaytix test gave the automated reports detecting patients with suspected malignancy and those results were compared with ground truth derived from mammography, sono-mammography and biopsy. In a similar manner, standalone mammography observation was compared with the above ground truth to compare the two modalities as individual modalities.
Results:
Out of the 194 subjects, 93 positive cases and Niramai accurately detected 91 cases and called out one as boundary case. Sensitivity of Thermalytix was 98% and NPV was 97%, while sensitivity of Mammography was 94% with an NPV of 94%. NIRAMAI Thermalytix detected 4 more malignant patients compared to Mammography. On the other hand, mammography scored over Thermalytix in PPV and Specificity by 10%. These results are tabulated at
Comparing NIRAMAI Thermalytix with Mammography NIRAMAIMammographySensitivity98%94%Specificity76%89%PPV79%89%NPV97%94%Accuracy87%91%Number of subjects = 194 high risk patients
Among the 194 patients, 39 women were found to have dense breasts and 19 with heterogenous dense breasts – on whom ultrasound and elastography was performed by the Radiologist to correlate with mammography results and make the final observations. Niramai test alone was effective in these patients.
The results show that Thermalytix is an emerging, radiation-free diagnostic modality that has comparable accuracy to Mammography. We conclude that NIRAMAI Thermalytix can be complementary modality to mammography as it works well on women of all age groups, including women with dense breasts. Its higher sensitivity and NPV adds to its potential to be the first screening test for early detection of breast cancer.
Citation Format: Manjunath G, Sudhakar S, Kakileti S, Madhu H, Singh A. Artificial Intelligence over thermal images for radiation-free breast cancer screening [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P6-02-12.
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Affiliation(s)
- G Manjunath
- NIRAMAI Health Analytix Pvt Ltd, Bangalore, India; HealthCare Global Enterprises Ltd, Bangalore, India; Narayana Hrudayalaya Limited, Bangalore, India
| | - S Sudhakar
- NIRAMAI Health Analytix Pvt Ltd, Bangalore, India; HealthCare Global Enterprises Ltd, Bangalore, India; Narayana Hrudayalaya Limited, Bangalore, India
| | - S Kakileti
- NIRAMAI Health Analytix Pvt Ltd, Bangalore, India; HealthCare Global Enterprises Ltd, Bangalore, India; Narayana Hrudayalaya Limited, Bangalore, India
| | - H Madhu
- NIRAMAI Health Analytix Pvt Ltd, Bangalore, India; HealthCare Global Enterprises Ltd, Bangalore, India; Narayana Hrudayalaya Limited, Bangalore, India
| | - A Singh
- NIRAMAI Health Analytix Pvt Ltd, Bangalore, India; HealthCare Global Enterprises Ltd, Bangalore, India; Narayana Hrudayalaya Limited, Bangalore, India
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Sudhakar S, Ramachandra Reddy B. Institutional Credit in India : A Review of Performance. International Journal of Management Studies 2018. [DOI: 10.18843/ijms/v5i4(8)/13] [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: 11/07/2022] Open
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Sudhakar S, Jaiswal KK, Ramaswamy AP. The Role of Microwave Irradiation Temperature on Nitrogen Doping in Metal-Free Graphene Catalysts for an Efficient Oxygen Reduction Reaction in an Alkaline Condition. ChemistrySelect 2018. [DOI: 10.1002/slct.201801353] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- S. Sudhakar
- Laboratory for Energy Materials and Sustainability; Centre for Green Energy Technology; Pondicherry University, R. V. Nagar, Kalapet, Puducherry; 605014 India
| | - Krishna Kumar Jaiswal
- Laboratory for Energy Materials and Sustainability; Centre for Green Energy Technology; Pondicherry University, R. V. Nagar, Kalapet, Puducherry; 605014 India
| | - Arun Prasath Ramaswamy
- Laboratory for Energy Materials and Sustainability; Centre for Green Energy Technology; Pondicherry University, R. V. Nagar, Kalapet, Puducherry; 605014 India
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rabhat MPVP, Sudhakar S, Kumar BP. Knowledge, attitude and perception (KAP) of dental undergraduates and interns on radiographic protection- A questionnaire based cross-sectional study. Journal of Advanced Oral Research 2018. [DOI: 10.1177/2229411220110321] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
| | - S Sudhakar
- M.D.S, Asst
Professor,Department of Oral Medicine & Radiology, St. Joseph Dental
College & Hospital, Eluru, Andhra Pradesh
| | - B Praveen Kumar
- M.D.S, Asst
Professor,Department of Oral Medicine & Radiology, St. Joseph Dental
College & Hospital, Eluru, Andhra Pradesh
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Chakraborty K, Sudhakar S, Sarma KK, Raju PLN, Das AK. Recognizing the Rapid Expansion of Rubber Plantation – A Threat to Native Forest in Parts of Northeast India. CURR SCI INDIA 2018. [DOI: 10.18520/cs/v114/i01/207-213] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Sudhakar S, Kirthika V, Padmanabhan K, Ramachandran S, Kumar M. Efficacy of combined proprioceptive exercises and conventional physiotherapy in patients with knee osteoarthritis: A double-blinded two-group pretest–posttest design. J Orthop Traumatol Rehabil 2018. [DOI: 10.4103/jotr.jotr_40_17] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Sudhakar S, Kirthika SV, Padmanabhan K, Senthil Nathan CV, Ramachandran S. Efficacy of progressive relaxation technique and yoga in patients with stress-induced asthma: A randomized controlled trial. Muller J Med Sci Res 2018. [DOI: 10.4103/mjmsr.mjmsr_36_17] [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: 11/04/2022] Open
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Abstract
BACKGROUND Age-related hyperkyphosis causes deleterious effects on health, physical function, and quality of life. Recently, health care providers recognized it as a major health concern. OBJECTIVE To identify the effect of corrective exercise strategy on hyperkyphosis and compare it with that of conventional exercise. METHODS Subjects were randomly categorized into two groups. Each group comprised 30 subjects. Group A received the corrective exercise strategy, and group B received conventional exercises for 8 weeks of the study duration (15 repetitions of each exercise for three sessions/day for a total duration of 45 min and 4 days/week. Pre- and post-interventional hyperkyphosis were analyzed according to posture number using the Posture Pro 8 postural analysis software. In addition, pectoralis minor flexibility was assessed using the ruler scale method in centimeters. RESULTS Both groups showed highly significant postural alteration and changes in pectoralis minor muscle length (p< 0.001)CONCLUSIONS:The corrective exercise strategy seems to promote scapular stability and produce a more upright posture of the upper thoracic spine.
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Affiliation(s)
- P Senthil
- School of Physiotherapy, Vels University, Chennai, Tamilnadu, India.,Department of Musculoskeletal, Mohamed Sathak A.J. College of Physiotherapy, Chennai, Tamilnadu, India
| | - S Sudhakar
- Faculty of Physiotherapy, ACS Medical College and Hospitals, Dr MGR University Educational and Research Institute, Chennai, Tamilnadu, India
| | - R Radhakrishnan
- Department of Musculoskeletal, Mohamed Sathak A.J. College of Physiotherapy, Chennai, Tamilnadu, India
| | - S Jeyakumar
- Department of Physiotherapy, Saveetha University, Chennai, Tamilnadu, India
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Senthil P, Sudhakar S, Porcelvan S, Francis TT, Rathnamala D, Radhakrishnan R. Implication of Posture Analysing Software to Evaluate the Postural Changes after Corrective Exercise Strategy on Subjects with Upper Body Dysfunction-A Randomized Controlled Trial. J Clin Diagn Res 2017; 11:YC01-YC04. [PMID: 28893030 PMCID: PMC5583788 DOI: 10.7860/jcdr/2017/26520.10229] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Accepted: 05/30/2017] [Indexed: 12/30/2022]
Abstract
INTRODUCTION The postural adaptation is very common now a days in school going children, office desk oriented job, computer users and frequent mobile users, and in all major industrial workers. Several studies have documented a high incidence of postural abnormalities in a given population; however, methods of postural measurement were poorly defined. The implication of postural pro software to analyse the postural imbalance of upper body dysfunction is very rare and literature studies says that the kinematic changes in particular segment will produce pain/discomfort and thereby lesser productivity of subjects. AIM To evaluate the postural changes in subjects with upper body dysfunction after a corrective exercise strategy using postural analysis software and pectoralis minor muscle length testing. MATERIALS AND METHODS After explaining the procedure and benefits, informed consent was taken from the participating subjects (age 25-55 years). Subjects with upper body dysfunction were randomly allocated into two groups (each group 30 subjects). The Group-A received the corrective exercise strategy and Group-B received the conventional exercise for eight weeks of study duration (15 reps each exercise, total duration of 40 min; four days/week. Pre and Post posture analysis were analysed using posture pro software along with flexibility of pectoralis minor was assessed using ruler scale method. RESULTS After interpretation of data, both the group showed the postural alteration and pectoralis minor muscle length changes, p-value (p<0.01) of both group showed highly significant changes. But comparing the both groups, the subjects who received the corrective exercise strategy shown more percentage of improvement in posture alteration (56.25%), pectoralis minor muscle length changes (68.69%) than the conventional exercise received subjects in posture alteration (24.86%) and pectoralis minor muscle length changes (21.9%). CONCLUSION Altered postural changes and pectoralis minor muscle flexibility before and after the corrective exercise strategy evaluated by postural analysis software method shown to be a significant tool in clinical practice, which is easier and reproducible method.
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Affiliation(s)
- Purushothaman Senthil
- Research Scholar, School of Physiotherapy, Vel’s University, Chennai, Tamil Nadu, India
| | - S Sudhakar
- Assistant Professor, Department of Arthroscopy and Sports Medicine, Sri Ramachandra University, Chennai, Tamil Nadu, India
| | - S Porcelvan
- Professor, Department of Research committee, Saveetha University, Chennai, Tamil Nadu, India
| | - T.G. Tilak Francis
- Professor, Department of Physiotherapy, Vel’s University, Chennai, Tamil Nadu, India
| | - D Rathnamala
- Associate Professor, Department of Physiotherapy, Mohamed Sathak A J College of Physiotherapy, Chennai, Tamil Nadu, India
| | - R Radhakrishnan
- Professor, Department of Physiotherapy, Mohamed Sathak A J College of Physiotherapy, Chennai, Tamil Nadu, India
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Senthil P, Sudhakar S, Radhakrishnan R. Effect of Thoracic Correction Exercises in Upper Body Dysfunction of 94-Year-old Male Participant - A Case Report. J Clin Diagn Res 2017; 10:YD01-YD02. [PMID: 28208991 DOI: 10.7860/jcdr/2016/22016.9029] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Accepted: 08/24/2016] [Indexed: 11/24/2022]
Abstract
The case report has been presented to show the effects of thoracic correction exercises on flexed posture in older men with upper body dysfunction using posture analysis software and pectoralis minor muscle length test. The present case is that of a 94-year-old male. He was guided for a specific thoracic correction exercises for 12 weeks. The program included breathing correction, thorax mobility, scapular stability and passive stretching of Pectoralis major and minor, performed thrice a week, 30 min each session, for 12 weeks. Outcome measures included the upper body dysfunction changes by posture analysis software and pectoralis minor muscle length test. The Pre and Post-test of the patient demonstrated significantly greater improvements in hyperkyphosis (forward head posture) and pectoralis minor muscle length. This case study provides a promising exercise intervention that may improve flexed posture in older men with age-related upper body dysfunction.
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Affiliation(s)
- P Senthil
- Professor, Department of Physiotherapy, Mohamed Sathak A J College of Physiotherapy , Chennai, Tamilnadu, India
| | - S Sudhakar
- Assistant Professor, Department of Arthroscopy and Sports Medicine, Sri Ramachandra University , Chennai, Tamilnadu, India
| | - R Radhakrishnan
- Professor, Department of Physiotherapy, Mohamed Sathak A J College of Physiotherapy , Chennai, Tamilnadu, India
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Anthonappa RP, Sudhakar S, King NM. Bilateral supplemental maxillary central incisors with double-tooth like appearance. Eur Arch Paediatr Dent 2017; 18:123-126. [PMID: 28205161 DOI: 10.1007/s40368-017-0269-9] [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: 10/10/2016] [Accepted: 02/01/2017] [Indexed: 10/20/2022]
Abstract
BACKGROUND Supplemental teeth refer to extra teeth that resemble the normal tooth series. Bilateral supplemental central incisors in a healthy individual are rare and bilateral supplemental incisors with double-tooth like appearance are exceptionally rare and has not been previously reported in the dental literature. CASE REPORT This clinical report describes an 8-year old healthy Indian boy referred for the management of delayed eruption of his permanent maxillary incisor teeth. Following clinical and radiographic examination the two supplemental incisors closer to the midline were extracted under local analgesia and both of them exhibited double-tooth like appearance. CONCLUSIONS The present case refutes the conventional wisdom that "supplemental teeth are usually smaller than the normal tooth type they resemble and occur distal to the normal tooth series", illustrates that the unusual can occur and that the clinician should be aware of such variations.
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Affiliation(s)
- R P Anthonappa
- Paediatric Dentistry, School of Dentistry, The University of Western Australia, 17 Monash Avenue, Nedlands, WA 6009, Australia.
| | | | - N M King
- Paediatric Dentistry, School of Dentistry, The University of Western Australia, 17 Monash Avenue, Nedlands, WA 6009, Australia
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Mohan Kumar G, Logabalan T, Senthil Nathan CV, Rajalaxmi V, Ramachandran S, Sudhakar S. A Comparative Study on the Effectiveness of Muscle Energy Techniques and Mobilization Coupled with Ultrasound in Patients with Periarthritis of the Shoulder Joint. International Journal of Physiotherapy 2016. [DOI: 10.15621/ijphy/2016/v3i5/117451] [Citation(s) in RCA: 1] [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: 11/05/2022] Open
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30
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David AWS, Sudhakar S, Pai S, Sundar S, Huilgol AK. Transplant nephrectomy: Our experience over the last 15 years. Indian Journal of Transplantation 2016. [DOI: 10.1016/j.ijt.2016.09.065] [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: 11/25/2022] Open
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31
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Prabhu SM, Yadav V, Prakash D, Sudhakar S, Mani S. Myelination Clock: a Simplified Step-by-step Approach to Normal Myelination. Hong Kong J Radiol 2016. [DOI: 10.12809/hkjr1614286] [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: 11/05/2022] Open
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32
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Abstract
Lamin A is an intermediate filament protein which is cleaved by the enzyme, FACE 1 at VTRSY↓L. The cleavage is the final step in the production of the mature lamin A protein. The mature lamin A protein localizes in the inner membrane of the nucleus. The mutation in the lamin A gene causes many diseases, including accelerated aging. It is known that the protein is not expressed in neuronal cells of the brain. Many splicing variants of the lamin A gene have been reported. In this study, the amino acid sequence VTRSY (a penta-peptide repeat) was found in three different sites of the C-terminal end of the lamin A protein, the protein expressed in cells of ear cartilage tissues is shorter than the protein expressed in cells of the skin tissues. Using two lamin A antibodies, it was found that the amino acid sequence between penta-peptide 2 and 3 is missing in lamin A protein that was expressed in the cells of mouse ear cartilage tissue, besides the RT-PCR data confirmed that the corresponding coding sequence between the penta repeat 2 and 3 is intact. Cleavage may occur at the penta-peptide (VTRSY) at site 3 in the lamin A tail of mouse ear cartilage.
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Senthil P, Sudhakar S, Radhakrishnan R. Isolated Activation of Deep Cervical Flexor Muscles to Improve the Functional Outcome of Subjects with Cervical Dysfunction. ACTA ACUST UNITED AC 2016. [DOI: 10.5958/0973-5674.2016.00061.7] [Citation(s) in RCA: 1] [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: 10/21/2022]
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Sudhakar S, Rocky J, Ramaswamy P, Smitha B, Kiran C. SkIndia Quiz 23: A swelling on the tongue. Indian Dermatol Online J 2016; 7:137-8. [PMID: 27057506 PMCID: PMC4804592 DOI: 10.4103/2229-5178.174341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Kumar KS, Ranjith S, Sudhakar S, Srinivasan P, Ponnuswamy MN. Crystal structure of piperazine-1,4-diium bis-(4-amino-benzene-sulfonate). Acta Crystallogr E Crystallogr Commun 2015; 71:o1084-5. [PMID: 26870510 PMCID: PMC4719991 DOI: 10.1107/s2056989015024457] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Accepted: 12/19/2015] [Indexed: 09/01/2023]
Abstract
The asymmetric unit of the title salt, C4H12N2 (2+)·2C6H6NO3S(-), consists of half a piperazindiium dication, located about an inversion centre, and a 4-amino-benzene-sulfonate anion. The piperazine ring adopts a chair conformation. In the crystal, the cations and anions are linked via N-H⋯O and C-H⋯O hydrogen bonds, forming a three-dimensional framework. Within the framework there are C-H⋯π inter-actions and the N-H⋯O hydrogen bonds result in the formation of R 4 (4)(22) and R 3 (4)(13) ring motifs.
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Affiliation(s)
- K Sathesh Kumar
- Department of Physics, SRM University, Ramapuram Campus, Chennai 600 089, India
| | - S Ranjith
- Department of Physics, SRM University, Ramapuram Campus, Chennai 600 089, India
| | - S Sudhakar
- Department of Physics, Alagappa University, Karaikudi 630 003, India
| | - P Srinivasan
- Department of Physics, University College of Engineering, Panruti, Cuddalore 607 106, India
| | - M N Ponnuswamy
- Centre of Advanced Study in Crystallography and Biophysics, University of Madras, Guindy Campus, Chennai 600 025, India
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Kalidas RM, Raja SE, Mydeen SAKNM, Samuel SCJR, Durairaj SCJ, Nino GD, Palanichelvam K, Vaithi A, Sudhakar S. Conserved lamin A protein expression in differentiated cells in the earthworm Eudrilus eugeniae. Cell Biol Int 2015; 39:1036-43. [PMID: 25858151 DOI: 10.1002/cbin.10479] [Citation(s) in RCA: 7] [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: 04/20/2014] [Accepted: 03/29/2015] [Indexed: 12/26/2022]
Abstract
Lamin A is an intermediate filament protein found in most of the differentiated vertebrate cells but absent in stem cells. It shapes the skeletal frame structure beneath the inner nuclear membrane of the cell nucleus. As there are few studies of the expression of lamin A in invertebrates, in the present work, we have analyzed the sequence, immunochemical conservation and expression pattern of lamin A protein in the earthworm Eudrilus eugeniae, a model organism for tissue regeneration. The expression of lamin A has been confirmed in E. eugeniae by immunoblot. Its localization in the nuclear membrane has been observed by immunohistochemistry using two different rabbit anti-sera raised against human lamin A peptides, which are located at the C-terminus of the lamin A protein. These two antibodies detected 70 kDa lamin A protein in mice and a single 65 kDa protein in the earthworm. The Oct-4 positive undifferentiated blastemal tissues of regenerating earthworm do not express lamin A, while the Oct-4 negative differentiated cells express lamin A. This pattern was also confirmed in the earthworm prostate gland. The present study is the first evidence for the immunochemical identification of lamin A and Oct-4 in the earthworm. Along with the partial sequence obtained from the earthworm genome, the present results suggest that lamin A protein and its expression pattern is conserved from the earthworm to humans.
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Affiliation(s)
- Ramamoorthy M Kalidas
- Department of Biotechnology, Manonmaniam Sundaranar University, Tirunelveli-627012, Tamilnadu, India
| | - Subramanian Elaiya Raja
- Department of Biotechnology, Manonmaniam Sundaranar University, Tirunelveli-627012, Tamilnadu, India
| | | | | | | | | | | | - Arumugaswami Vaithi
- Department of Surgery, Cedars-Sinai Medical Center, Los Angeles, CA, 90048, USA
| | - Sivasubramaniam Sudhakar
- Department of Biotechnology, Manonmaniam Sundaranar University, Tirunelveli-627012, Tamilnadu, India
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Sudhakar S, Geethika V, Rao N, Smitha B, Kiran CS. Alveolar rhabdomyosarcoma on the left maxillary alveolus: a unique presentation. J Clin Diagn Res 2015; 9:ZD07-9. [PMID: 25859531 DOI: 10.7860/jcdr/2015/11263.5582] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2014] [Accepted: 01/08/2015] [Indexed: 11/24/2022]
Abstract
Rhabdomyosarcomas (RMSs) are a group of soft-tissue malignant tumours. They derive from primitive skeletal muscle tissue with head and neck as its principle location. These tumours are extremely rare in adults and it is believed to have a different natural course, treatment response, and prognosis. The invasiveness of tumour, metastasis, lymph node involvement, and the age at diagnosis is a predictor of outcome in patients with RMC. Hence early recognition and histological sub-typing is of critical importance in the therapy of the disease. We report a rare case of RMC in a 50-year-old female patient involving the left maxillary alveolus with a detailed clinical, radiological, histopathological and immunohistochemical findings.
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Affiliation(s)
- S Sudhakar
- Reader, Department of Oral medicine & Radiology, St.Joseph Dental College & Hospital , Eluru, Andhrapradesh, India
| | - V Geethika
- Post Graduate Student, Department of Oral Medicine & Radiology, St.Joseph Dental College & Hospital , Eluru, Andhrapradesh, India
| | - Nageswara Rao
- Post Graduate Student, Department of Oral Medicine & Radiology, St.Joseph Dental College & Hospital , Eluru, Andhrapradesh, India
| | - B Smitha
- Reader, Department of Oral Medicine & Radiology, St.Joseph Dental College & Hospital , Eluru, Andhrapradesh, India
| | - Ch Sai Kiran
- Senior Lecturer, Department of Oral Medicine & Radiology, St.Joseph Dental College & Hospital , Eluru, Andhrapradesh, India
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Sudhakar S, David AW, Manoharan B, Gupta V, Ravindran T, Babitha A, Sridar C, Sundar S, Huilgol AK. Renal transplant outcomes and long-term survival KANTI-Columbia Asia Hospitals. Indian Journal of Transplantation 2014. [DOI: 10.1016/j.ijt.2014.12.016] [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: 10/23/2022] Open
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Handique BK, Khan SA, Mahanta J, Sudhakar S. Forecasting Japanese encephalitis incidence from historical morbidity patterns: Statistical analysis with 27 years of observation in Assam, India. J Vector Borne Dis 2014; 51:172-178. [PMID: 25253209] [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: 06/03/2023] Open
Abstract
BACKGROUND & OBJECTIVES Japanese encephalitis (JE) is one of the dreaded mosquito-borne viral diseases mostly prevalent in south Asian countries including India. Early warning of the disease in terms of disease intensity is crucial for taking adequate and appropriate intervention measures. The present study was carried out in Dibrugarh district in the state of Assam located in the northeastern region of India to assess the accuracy of selected forecasting methods based on historical morbidity patterns of JE incidence during the past 22 years (1985-2006). METHODS Four selected forecasting methods, viz. seasonal average (SA), seasonal adjustment with last three observations (SAT), modified method adjusting long-term and cyclic trend (MSAT), and autoregressive integrated moving average (ARIMA) have been employed to assess the accuracy of each of the forecasting methods. The forecasting methods were validated for five consecutive years from 2007-2012 and accuracy of each method has been assessed. RESULTS The forecasting method utilising seasonal adjustment with long-term and cyclic trend emerged as best forecasting method among the four selected forecasting methods and outperformed the even statistically more advanced ARIMA method. Peak of the disease incidence could effectively be predicted with all the methods, but there are significant variations in magnitude of forecast errors among the selected methods. As expected, variation in forecasts at primary health centre (PHC) level is wide as compared to that of district level forecasts. INTERPRETATION & CONCLUSION The study showed that adopted forecasting techniques could reasonably forecast the intensity of JE cases at PHC level without considering the external variables. The results indicate that the understanding of long-term and cyclic trend of the disease intensity will improve the accuracy of the forecasts, but there is a need for making the forecast models more robust to explain sudden variation in the disease intensity with detail analysis of parasite and host population dynamics.
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Affiliation(s)
| | - Siraj A Khan
- Regional Medical Research Centre-NER (ICMR), Dibrugarh, Assam, India
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Sai kiran C, Khaitan T, Ramaswamy P, Sudhakar S, Smitha B, Uday G. Role of mandibular canines in establishment of gender. Egyptian Journal of Forensic Sciences 2014. [DOI: 10.1016/j.ejfs.2014.05.003] [Citation(s) in RCA: 1] [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: 10/25/2022] Open
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41
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Ramalingam VS, Sinnakirouchenan R, Sudhakar S, Brasch AV. Acute ischemic stroke in aortic dissection: case report and review of literature. ACTA ACUST UNITED AC 2014. [PMID: 22945783 DOI: 10.4103/0019-5359.100342] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
The estimated incidence of aortic dissection ranges from 5 to 30 cases per million per year. Nearly 38% of cases are missed at an initial presentation due to the wide range of clinical symptoms. We report a survivor of an inadvertent thrombolysis in acute ischemic stroke, secondary to aortic dissection.
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Affiliation(s)
- V S Ramalingam
- Department of Medicine, Divisions of Pulmonary and Critical Care Medicine, Milwaukee, Wisconisn, USA.
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Morse LR, Sudhakar S, Lazzari AA, Tun C, Garshick E, Zafonte R, Battaglino RA. Sclerostin: a candidate biomarker of SCI-induced osteoporosis. Osteoporos Int 2013; 24:961-8. [PMID: 22801952 PMCID: PMC3611240 DOI: 10.1007/s00198-012-2072-0] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2012] [Accepted: 05/25/2012] [Indexed: 12/17/2022]
Abstract
UNLABELLED We assessed several circulating proteins as candidate biomarkers of bone status in men with chronic spinal cord injury. We report that sclerostin is significantly associated with bone mineral content and bone density at all skeletal sites tested. We found no association between bone and any other tested biomarker. INTRODUCTION Spinal cord injury results in severe osteoporosis. To date, no circulating biomarker of spinal cord injury (SCI)-induced osteoporosis has been identified. We recently reported that circulating sclerostin is associated with bone density in chronic SCI. In this study, we assessed several circulating proteins as candidate biomarkers of bone in men with chronic SCI. METHODS We assessed the relationship between bone mineral content or bone density and the following circulating bone-related proteins: sclerostin, DKK-1, soluble receptor activator of nuclear factor kappa B ligand, osteoprotegerin, osteocalcin, and c-telopeptide in 39 men with chronic SCI and 10 men with no SCI. RESULTS After adjusting for age, lower sclerostin levels were significantly associated with lower bone mineral content and bone density at all skeletal sites tested (p = 0.0002-0.03). No other circulating protein was associated with bone mineral content or bone mineral density (p = 0.18-0.99). CONCLUSION These findings suggest that circulating sclerostin reflects the severity of bone loss and is a candidate biomarker of osteoporosis severity in chronic SCI.
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Affiliation(s)
- L. R. Morse
- Department of Physical Medicine and Rehabilitation, Harvard Medical School, Boston, MA, USA. Spaulding-Harvard SCI Model System, Spaulding Rehabilitation Hospital, Boston, MA, USA. The Forsyth Institute, Cambridge, MA, USA. Spinal Cord Injury Service, VA Boston Healthcare System, Boston, MA, USA
| | - S. Sudhakar
- Spaulding-Harvard SCI Model System, Spaulding Rehabilitation Hospital, Boston, MA, USA
| | - A. A. Lazzari
- Primary Care and Rehabilitation Sections, VA Boston Healthcare System and Boston University School of Medicine, Boston, MA, USA
| | - C. Tun
- Rehabilitation Medicine Service, VA Boston Healthcare System, Boston, MA, USA
| | - E. Garshick
- Pulmonary and Critical Care Medicine Section, Medical Service, VA Boston Healthcare System, Boston, MA, USA. Channing Laboratory, Department of Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - R. Zafonte
- Department of Physical Medicine and Rehabilitation, Harvard Medical School, Boston, MA, USA. Spaulding-Harvard SCI Model System, Spaulding Rehabilitation Hospital, Boston, MA, USA
| | - R. A. Battaglino
- The Forsyth Institute, Cambridge, MA, USA. Department of Oral Medicine, Infection, and Immunity, Harvard School of Dental Medicine, Boston, MA, USA. Skeletal Biology Department, The Forsyth Institute, 245 First St., Cambridge, MA 02142, USA
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Goswami J, Roy S, Sudhakar S. A Novel Approach in Identification of Urban Hot Spot Using Geospatial Technology: A Case Study in Kamrup Metro District of Assam. ACTA ACUST UNITED AC 2013. [DOI: 10.4236/ijg.2013.45084] [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: 11/20/2022]
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Mallarajapatna G, Sridhar P, Nagaraj R, Indresh D, Shivkumar S, Kallur K, Prashanth G, Sudhakar S, Ajaikumar B. Apparent Diffusion Coefficient (ADC) Value on MR Imaging as a Marker of Treatment Response in Prostate Cancer. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.1789] [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: 10/27/2022]
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Prabhat MPV, Sudhakar S, Patil K, Mahima VG, Srikrishna K. Optical Coherence Tomography in Dentistry: An Emerging Perspective. JIAOMR 2012. [DOI: 10.5005/jp-journals-10011-1322] [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: 11/23/2022] Open
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rabhat MPVP, Sudhakar S, Kumar BP. Knowledge, attitude and perception (KAP) of dental undergraduates and interns on radiographic protection- A questionnaire based cross-sectional study. Journal of Advanced Oral Research 2012. [DOI: 10.1177/2229411220110308] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
| | - S Sudhakar
- M.D.S, Asst Professor,Department of Oral Medicine & Radiology, St. Joseph Dental College & Hospital, Eluru, Andhra Pradesh
| | - B Praveen Kumar
- M.D.S, Asst Professor,Department of Oral Medicine & Radiology, St. Joseph Dental College & Hospital, Eluru, Andhra Pradesh
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Prabhat MPV, Sudhakar S, Patil K, Mahima VG, Srikrishna K. Optical Coherence Tomography in Dentistry: An Emerging Perspective. JIAOMR 2012. [DOI: 10.5005/jp-journals-10011-1300] [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: 11/23/2022] Open
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Govindarajan M, Nagaraj KR, Kallur KG, Prashanth GR, Shivakumar S, Sudhakar S, Rajkumar K, Indresh D, Sridhar PS, Ajaikumar BS. Diffusion weighted MR imaging versus F18 FDG PETC CT in identifying small hepatic metastases. J Clin Oncol 2012. [DOI: 10.1200/jco.2012.30.15_suppl.e14675] [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: 11/20/2022] Open
Abstract
e14675 Background: This exploratory study assessed the ability of diffusion weighted MRI imaging in identifying small liver metastases as compared to F18- FDG PETCT. Methods: Patients with diagnosis of carcinoma of breast, lung, colorectal, pancreas, neuroendocrine and HCC who were staged for their disease using PET CT and MRI were included in the study. We randomly analyzed and compared PETCT and MRI images of 40 patients with hepatic metastases for sensitivity in detection of metastatic lesions in the liver on PETCT and MRI. Where possible, biopsy was performed if MRI/PET CT showed one or two small lesions in the liver. We performed ANCOVA to detect differences between PETCT and MRI controlling for primary sites of disease as a covariate. Results: The mean number of small lesions detected on PETCT was 0.92 where as it was 3.96 in MRI. There was a significant increase in small (p=0.02) and total number of lesions (p=0.01) seen on MRI compared to PET CT but not in large lesions. MRI was able to detect subcentimeter lesions more accurately than PET CT. Random biopsies done on small lesions found on MRI were positive for disease. MRI was able to detect small subcentimeter lesions three times more accurately than PET CT. Conclusions: MR diffusion is more sensitive in indentifying subcentimeter metastatic deposits in the liver that could help in accurate staging when PET CT is negative for liver metastases or when locoregional treatment for oligometastases is contemplated. However, pixels of DWI MRI (like reduced Signal to noise ratio at high b value, artefacts at liver edges and left lobe due to exaggerated susceptibility weighting and spin dephasing) need to be addressed by using other morphological images.
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Affiliation(s)
| | | | | | | | | | - S Sudhakar
- HCG Bangalore Institute of Oncology, Bangalore, India
| | | | - Desai Indresh
- HCG Bangalore Institute of Oncology, Bangalore, India
| | - P S Sridhar
- HCG Bangalore Institute of Oncology, Bangalore, India
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Sudhakar S, Prabhat MPV, Srikrishna K, B Kumar P, Ramaraju D. Evaluation of Occlusal Status of Teenage Patients visiting a Dental School in Andhra Pradesh: An Epidemiological Study. JIAOMR 2012. [DOI: 10.5005/jp-journals-10011-1251] [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: 11/23/2022] Open
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