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Sai Charan KV, Sangeetha R, Santana N, Anand B, Kumari M. Evaluating the knowledge and attitude of dental residents about special care dentistry – A cross-sectional study. J Indian Assoc Public Health Dent 2023. [DOI: 10.4103/jiaphd.jiaphd_203_22] [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: 04/03/2023] Open
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Mallick B, Kumari M, Pradhan SK, C P, Acharya GC, Naresh P, Das B, Shashankar P. Genome-wide analysis and characterization of heat shock transcription factors (Hsfs) in common bean (Phaseolus vulgaris L.). Funct Integr Genomics 2022; 22:743-756. [PMID: 35718806 DOI: 10.1007/s10142-022-00875-3] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 06/08/2022] [Indexed: 11/28/2022]
Abstract
Heat shock transcription factors (Hsfs) play an essential role as transcriptional regulatory proteins against heat stress by controlling the expression of heat-responsive genes. Common bean is a highly thermosensitive crop, and, therefore, its genome sequence information is segregated, characterized here in terms of heat shock transcription factors and its evolutionary significance. In this study, a complete comprehensive set of 29 non-redundant full-length Hsf genes were identified and characterized from Phaseolus vulgaris L. (PvHsf) genome sequence. Detailed gene information such as chromosomal localization, domain position, motif organization, and exon-intron identification were analyzed. All the 29 PvHsf genes were mapped on 8 out of 11 chromosomes, indicating the gene duplication occurred in the common bean genome. Motif analysis and exon-intron structure were conserved in each group, which showed that the cytoplasmic proteins highly influence the conserved structure of PvHsfs and heat-induced response. The HSF genes were grouped into three classes, i.e., A to C and 14 groups, based on structural features and phylogenetic relationships. Only one pair of paralog sequences suggests that it may be derived from the duplication event during evolution. A comparative genomics study indicated the influence of whole-genome duplication and purifying selection on the common bean genome during development. In silico expression analysis showed the active role of class A and B family during abiotic stress conditions and higher expression in floral organs. The qRT-PCR analysis revealed PvHSFA8 as the master regulator and PvHSFB1A and PvHSFB2A induction during heat exposure in French beans.
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Affiliation(s)
- B Mallick
- Department of Bioinformatics, Orissa University of Agriculture & Technology, Bhubaneswar, India
| | - M Kumari
- ICAR-Research Complex for Eastern Region, RS, Ranchi, India. .,Central Horticultural Experiment Station (ICAR-IIHR), Bhubaneswar, India.
| | - S K Pradhan
- Department of Bioinformatics, Orissa University of Agriculture & Technology, Bhubaneswar, India
| | - Parmeswaran C
- Division of Biotechnology, ICAR-National Rice Research Institute, Cuttack, Odisha, India
| | - G C Acharya
- Central Horticultural Experiment Station (ICAR-IIHR), Bhubaneswar, India
| | - P Naresh
- Central Horticultural Experiment Station (ICAR-IIHR), Bhubaneswar, India
| | - Bishnupriya Das
- Central Horticultural Experiment Station (ICAR-IIHR), Bhubaneswar, India
| | - P Shashankar
- Division of Biotechnology, ICAR-National Rice Research Institute, Cuttack, Odisha, India
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Alroomy R, Elbaz F, Asiri A, Almulhim B, Kumari M, Gunaranjan T, Mashyakhy M, Okazaki K. Assessment of the middle mesial canals of mandibular first molars using cone-beam computed tomography: an in vivo study. Eur Rev Med Pharmacol Sci 2022; 26:2861-2866. [PMID: 35503630 DOI: 10.26355/eurrev_202204_28616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
OBJECTIVE For a successful root canal therapy, it is necessary to locate all the canals debride and seal them with an inert filling material. The clinician must be aware of the internal morphology and variations in a permanent tooth. Mandibular first molars are widely studied to identify variations in the anatomy of the pulp space. In this study, the primary objective was to measure the distance between the mesiobuccal (MB) and mesiolingual (ML) canals in patients with and without a middle mesial canal (MMC) using cone-beam computed tomography (CBCT). The secondary objectives were to assess the tapering degree of the mesial root and to measure the dentinal thickness in relation to the danger-zone area in patients with and without an MMC. MATERIALS AND METHODS A total of 200 CBCT scans were evaluated for the presence of an MMC. Two observers performed the observations, and the results obtained were subject to statistical analyses. RESULTS The results revealed the prevalence of MMC was 5%. The average distance between the MB and ML canals was higher when there was an MMC [M(SD) = 3.61 (0.6) vs. 2.69 (0.66)]. However, there were no differences between the groups in the distance to the danger-zone area and the tapering degree of the mesial root. On CBCT images, the MMC was clearly visible 3 mm apical to the level of the cementoenamel junction; beyond 3 mm, the MMC could not be traced. CONCLUSIONS Based upon the results of this study, the average distance between the MB and ML canals was higher when there was an MMC. A lesser degree of taper would be preferred to prepare the MMC than to prepare the other canals. It is recommended that careful examination of the canal 3 mm apical to the cementoenamel junction should be carried out when attempting to detect an MMC.
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Affiliation(s)
- R Alroomy
- Department of Restorative Dental Sciences, College of Dentistry, Majmaah University, Al Majmaah, Saudi Arabia.
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Santana N, Mehazabin S, Sangeetha K, Kumari M. Osteodystrophies of jaws. J Oral Maxillofac Pathol 2021; 24:405. [PMID: 33456267 PMCID: PMC7802870 DOI: 10.4103/jomfp.jomfp_225_19] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 01/21/2020] [Accepted: 03/05/2020] [Indexed: 12/04/2022] Open
Abstract
Bone is a dense, semi rigid, porous, calcified connective tissue forming the major portion of the skeleton of most vertebrates. It consists of a dense organic matrix and an inorganic mineral component. Bone remodelling is a complex process by which old bone is continuously replaced by new tissue, which requires interaction between different cell phenotypes and is regulated by a variety of biochemical and mechanical factors. In a homeostatic equilibrium, the process of resorption and formation are balanced so that old bone is continuously replaced by new tissue and it adapts to mechanical load and strain. Several local and systematic factors which cause disturbances in bone resorption and deposition leads to abnormal or defective development of bone commonly termed as osteodystrophy - A defective ossification of bone usually is associated with disturbed calcium and phosphorus metabolism. The better understanding of molecular cellular biology and pathogenic mechanism aids to define the abnormalities in osteoblastic and osteoclastic lineages and to develop new therapeutic approaches.
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Affiliation(s)
- N Santana
- Department of Oral Medicine and Maxillofacial Radiology, Ragas Dental College and Hospital, Chennai, Tamil Nadu, India
| | - S Mehazabin
- Department of Oral Medicine and Maxillofacial Radiology, Ragas Dental College and Hospital, Chennai, Tamil Nadu, India
| | - K Sangeetha
- Department of Oral Medicine and Maxillofacial Radiology, Ragas Dental College and Hospital, Chennai, Tamil Nadu, India
| | - M Kumari
- Department of Oral Medicine and Maxillofacial Radiology, Ragas Dental College and Hospital, Chennai, Tamil Nadu, India
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Joshi R, Hingorani A, Engmann J, Dale C, Gaunt T, Jefferis B, Lawlor D, Price J, Papacosta O, Shah T, Tillin T, Chaturvedi N, Kivimaki M, Kuh D, Kumari M, Hughes A, Whincup P, Casas J, Humphries S, Schmidt A, Wannamethee S. Establishing reference intervals for triglyceride containing lipoprotein sub-fraction metabolites measured using nuclear magnetic resonance spectroscopy in a UK population. Atherosclerosis 2020. [DOI: 10.1016/j.atherosclerosis.2020.10.295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Joshi R, Wannamethee G, Rhodes D, Engmann J, Dale C, Gaunt T, Jefferis B, Papacosta O, Shah T, Tillin T, Wong A, Chaturvedi N, Kivimaki M, Kuh D, Kumari M, Hughes A, Ben-Shlomo Y, Casas JP, Hingorani AD, Schmidt AF. P15 TRIGLYCERIDE-CONTAINING LIPOPROTEIN SUB-FRACTIONS AND CORONARY HEART DISEASE AND STROKE RISK. Cardiovasc Res 2018. [DOI: 10.1093/cvr/cvy216.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Hughes A, Kumari M. Age modification of the relationship between C-reactive protein and fatigue: findings from Understanding Society (UKHLS). Psychol Med 2018; 48:1341-1349. [PMID: 28994356 PMCID: PMC6088542 DOI: 10.1017/s0033291717002872] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Revised: 06/05/2017] [Accepted: 09/04/2017] [Indexed: 11/22/2022]
Abstract
BACKGROUND Systemic inflammation may play a role in the development of idiopathic fatigue, that is, fatigue not explained by infections or diagnosed chronic illness, but this relationship has never been investigated in community studies including the entire adult age span. We examine the association of the inflammatory marker C-reactive protein (CRP) and fatigue assessed annually in a 3-year outcome period for UK adults aged 16-98. METHODS Multilevel models were used to track fatigue 7, 19, and 31 months after CRP measurement, in 10 606 UK individuals. Models accounted for baseline fatigue, demographics, health conditions diagnosed at baseline and during follow-up, adiposity, and psychological distress. Sensitivity analyses considered factors including smoking, sub-clinical disease (blood pressure, anaemia, glycated haemoglobin), medications, ethnicity, and alcohol consumption. RESULTS Fatigue and CRP increased with age, and women had higher values than men. CRP was associated with future self-reported fatigue, but only for the oldest participants. Thus, in those aged 61-98 years, high CRP (>3 mg/L) independently predicted greater fatigue 7, 19, and 31 months after CRP measurement [odds ratio for new-onset fatigue after 7 months: 1.88, 95% confidence interval (CI) 1.21-2.92; 19 months: 2.25, CI 1.46-3.49; 31 months: 1.65, CI 1.07-2.54]. No significant longitudinal associations were seen for younger participants. CONCLUSIONS Our findings support previously described CRP-fatigue associations in older individuals. However, there are clear age modifications in these associations, which may reflect a contribution of unmeasured sub-clinical disease of limited relevance to younger individuals. Further work is necessary to clarify intervening processes linking CRP and fatigue in older individuals.
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Affiliation(s)
- A. Hughes
- Institute for Social and Economic Research, University of Essex, Wivenhoe Park, Colchester, Essex, UK
| | - M. Kumari
- Institute for Social and Economic Research, University of Essex, Wivenhoe Park, Colchester, Essex, UK
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Nüesch E, Dale C, Palmer TM, White J, Keating BJ, van Iperen EP, Goel A, Padmanabhan S, Asselbergs FW, Verschuren WM, Wijmenga C, Van der Schouw YT, Onland-Moret NC, Lange LA, Hovingh GK, Sivapalaratnam S, Morris RW, Whincup PH, Wannamethe GS, Gaunt TR, Ebrahim S, Steel L, Nair N, Reiner AP, Kooperberg C, Wilson JF, Bolton JL, McLachlan S, Price JF, Strachan MW, Robertson CM, Kleber ME, Delgado G, März W, Melander O, Dominiczak AF, Farrall M, Watkins H, Leusink M, Maitland-van der Zee AH, de Groot MC, Dudbridge F, Hingorani A, Ben-Shlomo Y, Lawlor DA, Amuzu A, Caufield M, Cavadino A, Cooper J, Davies TL, Drenos F, Engmann J, Finan C, Giambartolomei C, Hardy R, Humphries SE, Hypponen E, Kivimaki M, Kuh D, Kumari M, Ong K, Plagnol V, Power C, Richards M, Shah S, Shah T, Sofat R, Talmud PJ, Wareham N, Warren H, Whittaker JC, Wong A, Zabaneh D, Davey Smith G, Wells JC, Leon DA, Holmes MV, Casas JP. Adult height, coronary heart disease and stroke: a multi-locus Mendelian randomization meta-analysis. Int J Epidemiol 2018; 45:1927-1937. [PMID: 25979724 PMCID: PMC5841831 DOI: 10.1093/ije/dyv074] [Citation(s) in RCA: 81] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/15/2015] [Indexed: 11/12/2022] Open
Abstract
Background: We investigated causal effect of completed growth, measured by adult height, on coronary heart disease (CHD), stroke and cardiovascular traits, using instrumental variable (IV) Mendelian randomization meta-analysis. Methods: We developed an allele score based on 69 single nucleotide polymorphisms (SNPs) associated with adult height, identified by the IBCCardioChip, and used it for IV analysis against cardiovascular risk factors and events in 21 studies and 60 028 participants. IV analysis on CHD was supplemented by summary data from 180 height-SNPs from the GIANT consortium and their corresponding CHD estimates derived from CARDIoGRAMplusC4D. Results: IV estimates from IBCCardioChip and GIANT-CARDIoGRAMplusC4D showed that a 6.5-cm increase in height reduced the odds of CHD by 10% [odds ratios 0.90; 95% confidence intervals (CIs): 0.78 to 1.03 and 0.85 to 0.95, respectively],which agrees with the estimate from the Emerging Risk Factors Collaboration (hazard ratio 0.93; 95% CI: 0.91 to 0.94). IV analysis revealed no association with stroke (odds ratio 0.97; 95% CI: 0.79 to 1.19). IV analysis showed that a 6.5-cm increase in height resulted in lower levels of body mass index (P < 0.001), triglycerides (P < 0.001), non high-density (non-HDL) cholesterol (P < 0.001), C-reactive protein (P = 0.042), and systolic blood pressure (P = 0.064) and higher levels of forced expiratory volume in 1 s and forced vital capacity (P < 0.001 for both). Conclusions: Taller individuals have a lower risk of CHD with potential explanations being that taller people have a better lung function and lower levels of body mass index, cholesterol and blood pressure.
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Affiliation(s)
- Eveline Nüesch
- Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, UK.,CTU Bern, Department of Clinical Research and Institute of Social and Preventive Medicine (ISPM), University of Bern, Bern, Switzerland
| | - Caroline Dale
- Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, UK
| | - Tom M Palmer
- Warwick Medical School, University of Warwick, Coventry, UK.,Department of Mathematics and Statistics, Lancaster University, Lancaster, UK
| | - Jon White
- UCL Genetics Institute, Department of Genetics, Evolution and Environment, University College London, London, UK
| | - Brendan J Keating
- Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.,Department of Surgery.,Division of Genetics, University of Pennsylvania, Philadelphia
| | - Erik Pa van Iperen
- Department of Biostatistics, Academic Medical Center Amsterdam, Amsterdam, The Netherlands.,Durrer Center for Cardiogenetic Research, ICIN-Netherlands Heart Institute, Utrecht, The Netherlands
| | - Anuj Goel
- Wellcome Trust Centre for Human Genetics and Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Sandosh Padmanabhan
- Institute of Cardiovascular and Medical Sciences, College of Medical Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - Folkert W Asselbergs
- Department of Cardiology, Division Heart and Lungs, University Medical Centre Utrecht, Utrecht, The Netherlands.,Durrer Center for Cardiogenetic Research, ICIN-Netherlands Heart Institute, Utrecht, The Netherlands.,Institute of Cardiovascular Science, Faculty of Population Health Sciences, University College London, London, UK
| | | | | | | | | | | | - Leslie A Lange
- Department of Genetics, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - G K Hovingh
- Department of Vascular Medicine, Academic Medical Center Amsterdam, Amsterdam, The Netherlands
| | - Suthesh Sivapalaratnam
- Department of Vascular Medicine, Academic Medical Center Amsterdam, Amsterdam, The Netherlands
| | - Richard W Morris
- Department of Primary Care & Population Health, University College London, London, UK
| | - Peter H Whincup
- Population Health Research Institute, St George's, University of London, London, UK
| | - Goya S Wannamethe
- Department of Primary Care & Population Health, University College London, London, UK
| | - Tom R Gaunt
- MRC Integrative Epidemiology Unit, School of Social and Community Medicine, University of Bristol, Bristol, UK.,School of Social and Community Medicine, University of Bristol, Bristol, UK
| | - Shah Ebrahim
- Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, UK
| | - Laura Steel
- Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Nikhil Nair
- Department of Pediatrics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Alexander P Reiner
- Department of Epidemiology, University of Washington, Seattle, WA, USA / Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Charles Kooperberg
- Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - James F Wilson
- Usher Institute for Population Health Sciences and Informatics, University of Edinburgh, Edinburgh, UK.,MRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Edinburgh, UK
| | - Jennifer L Bolton
- Usher Institute for Population Health Sciences and Informatics, University of Edinburgh, Edinburgh, UK
| | - Stela McLachlan
- Usher Institute for Population Health Sciences and Informatics, University of Edinburgh, Edinburgh, UK
| | - Jacqueline F Price
- Usher Institute for Population Health Sciences and Informatics, University of Edinburgh, Edinburgh, UK
| | | | - Christine M Robertson
- Usher Institute for Population Health Sciences and Informatics, University of Edinburgh, Edinburgh, UK
| | - Marcus E Kleber
- Fifth Department of Medicine, Medical Faculty Mannheim, Heidelberg University, Heidelberg, Germany
| | - Graciela Delgado
- Fifth Department of Medicine, Medical Faculty Mannheim, Heidelberg University, Heidelberg, Germany
| | - Winfried März
- Medical Clinic V (Nephrology, Hypertensiology, Endocrinology, Diabetolgy, and Rheumatology), Mannheim Medical Faculty, University of Heidelberg, Germany, Synlab Academy, Synlab Services GmbH, Mannheim and Augsburg, Germany, Clinical Institute of Medical and Chemical Laboratory Diagnostics, Medical University of Graz, Austria
| | | | - Anna F Dominiczak
- Institute of Cardiovascular and Medical Sciences, College of Medical Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - Martin Farrall
- Wellcome Trust Centre for Human Genetics and Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Hugh Watkins
- Wellcome Trust Centre for Human Genetics and Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Maarten Leusink
- Division of Pharmacoepidemiology & Clinical Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands.,Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Anke H Maitland-van der Zee
- Division of Pharmacoepidemiology & Clinical Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands
| | - Mark Ch de Groot
- Division of Pharmacoepidemiology & Clinical Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, The Netherlands.,Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Frank Dudbridge
- Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, UK
| | - Aroon Hingorani
- Department of Epidemiology and Public Health, University College London Medical School, London, UK
| | - Yoav Ben-Shlomo
- School of Social and Community Medicine, University of Bristol, Bristol, UK
| | - Debbie A Lawlor
- MRC Integrative Epidemiology Unit, School of Social and Community Medicine, University of Bristol, Bristol, UK.,School of Social and Community Medicine, University of Bristol, Bristol, UK
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - D Zabaneh
- UCLEB, London, Edinburgh and Bristol, UK
| | - George Davey Smith
- MRC Integrative Epidemiology Unit, School of Social and Community Medicine, University of Bristol, Bristol, UK.,School of Social and Community Medicine, University of Bristol, Bristol, UK
| | - Jonathan C Wells
- Childhood Nutrition Research Centre, UCL Institute of Child Health, London, UK
| | - David A Leon
- Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, UK.,Department of Community Medicine, Arctic University of Norway, UiT
| | - Michael V Holmes
- Institute of Cardiovascular Science, Faculty of Population Health Sciences, University College London, London, UK.,Department of Surgery and Clinical Epidemiology Unit, Center for Clinical Epidemiology and Biostatistics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.,Clinical Trial Service Unit & Epidemiological Studies Unit (CTSU), Nuffield Department of Population Health, University of Oxford, Oxford, UK
| | - Juan P Casas
- Faculty of Epidemiology and Population Health, London School of Hygiene and Tropical Medicine, London, UK.,Institute of Cardiovascular Science, Faculty of Population Health Sciences, University College London, London, UK
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Kumari M, Kozyrskyj AL. Gut microbial metabolism defines host metabolism: an emerging perspective in obesity and allergic inflammation. Obes Rev 2017; 18:18-31. [PMID: 27862824 DOI: 10.1111/obr.12484] [Citation(s) in RCA: 76] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Revised: 09/26/2016] [Accepted: 10/05/2016] [Indexed: 12/14/2022]
Abstract
The presence of >100 trillion microorganisms (collectively called gut microbiota) in our large intestine is essential for the maintenance of health. The gut microbiota starts to develop before birth and matures within first three years of life. The Western diet and lifestyle have been implicated in causing an imbalance of gut microbial communities and their metabolites that consequence in disease states, such as obesity and asthma. With more than 13% of the world population currently living with obesity and one out of 10 children diagnosed with asthma, we explore here the recent developments in the biosynthesis and mode of action of the key metabolites in relation to these two chronic inflammatory conditions.
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Affiliation(s)
- M Kumari
- Department of Pediatrics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
| | - A L Kozyrskyj
- Department of Pediatrics, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada.,Department of Obstetrics and Gynecology, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada.,School of Public Health, University of Alberta, Edmonton, AB, Canada
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Tymoszuk U, Stafford M, Kumari M. OP60 Social support and trajectories of Body Mass Index and Waist-to-Hip ratio of middle-aged adults over 22 years. Br J Soc Med 2016. [DOI: 10.1136/jech-2016-208064.60] [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]
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White J, Zaninotto P, Walters K, Kivimäki M, Demakakos P, Shankar A, Kumari M, Gallacher J, Batty GD. Severity of depressive symptoms as a predictor of mortality: the English longitudinal study of ageing. Psychol Med 2015; 45:2771-2779. [PMID: 25936473 DOI: 10.1017/s0033291715000732] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [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] [Indexed: 12/11/2022]
Abstract
BACKGROUND Major depressive disorder and subthreshold depression have been associated with premature mortality. We investigated the association between depressive symptoms and mortality across the full continuum of severity. METHOD We used Cox proportional hazards models to examine the association between depressive symptom severity, assessed using the eight-item Center for Epidemiological Studies Depression Scale (CES-D; range 0-8), and the risk of all-cause mortality over a 9-year follow-up, in 11 104 members of the English Longitudinal Study of Ageing. RESULTS During follow-up, one fifth of study members died (N = 2267). Depressive symptoms were associated with increased mortality across the full range of severity (p trend < 0.001). Relative to study members with no symptoms, an increased risk of mortality was found in people with depressive symptoms of a low [hazard ratio (HR) for a score of 2 was 1.59, 95% confidence interval (CI) 1.40-1.82], moderate (score of 4: HR 1.80, 95% CI 1.52-2.13) and high (score of 8: HR 2.27, 95% CI 1.69-3.04) severity, suggesting risk emerges at low levels but plateaus thereafter. A third of participants (36.4%, 95% CI 35.5-37.3) reported depressive symptoms associated with an increased mortality risk. Adjustment for physical activity, physical illnesses, and impairments in physical and cognitive functioning attenuated this association (p trend = 0.25). CONCLUSIONS Depressive symptoms are associated with an increased mortality risk even at low levels of symptom severity. This association is explained by physical activity, physical illnesses, and impairments in physical and cognitive functioning.
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Affiliation(s)
- J White
- School of Medicine,Cardiff University,Cardiff,UK
| | - P Zaninotto
- Department of Epidemiology and Public Health,University College London,London,UK
| | - K Walters
- Department of Primary Care and Population Health,University College London,London,UK
| | - M Kivimäki
- Department of Epidemiology and Public Health,University College London,London,UK
| | - P Demakakos
- Department of Epidemiology and Public Health,University College London,London,UK
| | - A Shankar
- Department of Epidemiology and Public Health,University College London,London,UK
| | - M Kumari
- Institute for Social and Economic Research,University of Essex,Colchester,UK
| | - J Gallacher
- School of Medicine,Cardiff University,Cardiff,UK
| | - G D Batty
- Department of Epidemiology and Public Health,University College London,London,UK
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Lacey RE, Sacker A, Kumari M, Worts D, McDonough P, Booker C, McMunn A. OP53 Work-family life courses and markers of stress and inflammation in mid-life in the national child development study 1958 british birth cohort. Br J Soc Med 2015. [DOI: 10.1136/jech-2015-206256.52] [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]
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Zimmermann E, Ängquist LH, Mirza SS, Zhao JH, Chasman DI, Fischer K, Qi Q, Smith AV, Thinggaard M, Jarczok MN, Nalls MA, Trompet S, Timpson NJ, Schmidt B, Jackson AU, Lyytikäinen LP, Verweij N, Mueller-Nurasyid M, Vikström M, Marques-Vidal P, Wong A, Meidtner K, Middelberg RP, Strawbridge RJ, Christiansen L, Kyvik KO, Hamsten A, Jääskeläinen T, Tjønneland A, Eriksson JG, Whitfield JB, Boeing H, Hardy R, Vollenweider P, Leander K, Peters A, van der Harst P, Kumari M, Lehtimäki T, Meirhaeghe A, Tuomilehto J, Jöckel KH, Ben-Shlomo Y, Sattar N, Baumeister SE, Smith GD, Casas JP, Houston DK, März W, Christensen K, Gudnason V, Hu FB, Metspalu A, Ridker PM, Wareham NJ, Loos RJF, Tiemeier H, Sonestedt E, Sørensen TIA. Is the adiposity-associated FTO gene variant related to all-cause mortality independent of adiposity? Meta-analysis of data from 169,551 Caucasian adults. Obes Rev 2015; 16:327-340. [PMID: 25752329 PMCID: PMC4564522 DOI: 10.1111/obr.12263] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Accepted: 12/12/2014] [Indexed: 11/28/2022]
Abstract
Previously, a single nucleotide polymorphism (SNP), rs9939609, in the FTO gene showed a much stronger association with all-cause mortality than expected from its association with body mass index (BMI), body fat mass index (FMI) and waist circumference (WC). This finding implies that the SNP has strong pleiotropic effects on adiposity and adiposity-independent pathological pathways that leads to increased mortality. To investigate this further, we conducted a meta-analysis of similar data from 34 longitudinal studies including 169,551 adult Caucasians among whom 27,100 died during follow-up. Linear regression showed that the minor allele of the FTO SNP was associated with greater BMI (n = 169,551; 0.32 kg m(-2) ; 95% CI 0.28-0.32, P < 1 × 10(-32) ), WC (n = 152,631; 0.76 cm; 0.68-0.84, P < 1 × 10(-32) ) and FMI (n = 48,192; 0.17 kg m(-2) ; 0.13-0.22, P = 1.0 × 10(-13) ). Cox proportional hazard regression analyses for mortality showed that the hazards ratio (HR) for the minor allele of the FTO SNPs was 1.02 (1.00-1.04, P = 0.097), but the apparent excess risk was eliminated after adjustment for BMI and WC (HR: 1.00; 0.98-1.03, P = 0.662) and for FMI (HR: 1.00; 0.96-1.04, P = 0.932). In conclusion, this study does not support that the FTO SNP is associated with all-cause mortality independently of the adiposity phenotypes.
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Affiliation(s)
- E Zimmermann
- Institute of Preventive Medicine, Bispebjerg and Frederiksberg Hospitals, The Capital Region, Copenhagen, Denmark
| | - L H Ängquist
- Institute of Preventive Medicine, Bispebjerg and Frederiksberg Hospitals, The Capital Region, Copenhagen, Denmark
| | - S S Mirza
- Department of Epidemiology, Erasmus Medical Centre, Rotterdam, The Netherlands
| | - J H Zhao
- MRC Epidemiology Unit, Institute of Metabolic Science, Addenbrooke's Hospital, University of Cambridge, Cambridge, UK
| | - D I Chasman
- Division of Preventive Medicine, Brigham and Women's Hospital, Boston, Massachusetts, USA.,Harvard Medical School, Boston, Massachusetts, USA
| | - K Fischer
- Estonian Genome Center, University of Tartu, Tartu, Estonia
| | - Q Qi
- Department of Epidemiology and Population Health, Albert Einstein College of Medicine, New York, New York, USA
| | - A V Smith
- Icelandic Heart Association, Kopavogur, Iceland.,University of Icelandic, Reykajvik, Iceland
| | - M Thinggaard
- The Danish Aging Research Center and The Danish Twin Registry, Epidemiology, Biostatistics and Biodemography, Institute of Public Health, University of Southern Denmark, Odense, Denmark
| | - M N Jarczok
- Mannheim Institute of Public Health, Social and Preventive Medicine, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - M A Nalls
- Laboratory of Neurogenetics, Intramural Research Program, National Institute on Aging, Bethesda, Maryland, USA
| | - S Trompet
- Department of Cardiology, Leiden University Medical Center, Leiden, The Netherlands.,Department of Gerontology and Geriatrics, Leiden University Medical Center, Leiden, The Netherlands
| | - N J Timpson
- MRC Integrative Epidemiology Unit (IEU), University of Bristol, Bristol, UK
| | - B Schmidt
- Institute for Medical Informatics, Biometry and Epidemiology, University of Duisburg-Essen, Essen, Germany
| | - A U Jackson
- Department of Biostatistics and Center for Statistical Genetics, University of Michigan, Ann Arbor, Michigan, USA
| | - L P Lyytikäinen
- Department of Clinical Chemistry, Fimlab Laboratories, Tampere, Finland.,School of Medicine, University of Tampere, Tampere, Finland
| | - N Verweij
- Department of Cardiology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - M Mueller-Nurasyid
- Department of Medicine I, Ludwig-Maximilians-University, Munich, Germany.,Institute of Medical Informatics, Biometry and Epidemiology, Chair of Genetic Epidemiology, Ludwig-Maximilians-Universität, Munich, Germany.,Institute of Genetic Epidemiology, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany.,Deutsches Forschungszentrum für Herz-Kreislauferkrankungen (DZHK), Partner site Munich Heart Alliance, Munich, Germany
| | - M Vikström
- Karolinska Institutet, Institute of Environmental Medicine, Unit of Cardiovascular Epidemiology, Stockholm, Sweden
| | - P Marques-Vidal
- Department of Internal Medicine, Internal Medicine, Lausanne University Hospital (CHUV), Lausanne, Switzerland
| | - A Wong
- MRC Unit for Lifelong Health and Ageing, University College London, London, UK
| | - K Meidtner
- Department of Molecular Epidemiology, German Institute of Human Nutrition Potsdam-Rehbrücke, Nuthetal, Germany.,Department of Epidemiology, German Institute of Human Nutrition Potsdam-Rehbrücke, Nuthetal, Germany
| | - R P Middelberg
- QIMR Berghofer Medical Research Institute, Brisbane, Australia
| | - R J Strawbridge
- Atherosclerosis Research Unit, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
| | - L Christiansen
- The Danish Aging Research Center and The Danish Twin Registry, Epidemiology, Biostatistics and Biodemography, Institute of Public Health, University of Southern Denmark, Odense, Denmark
| | | | - K O Kyvik
- Institute of Regional Health Services Research and Odense Patient data Explorative Network, Odense University Hospital, Odense, Denmark
| | - A Hamsten
- Atherosclerosis Research Unit, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
| | - T Jääskeläinen
- Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland
| | - A Tjønneland
- Danish Cancer Society Research Centre, Copenhagen, Denmark
| | - J G Eriksson
- Diabetes Prevention Unit, Department of Chronic Disease Prevention, National Institute for Health and Welfare, Helsinki, Finland.,Department of General Practice and Primary Health Care, Institute of Clinical Medicine, University of Helsinki, Helsinki, Finland.,Folkhälsan Research Centre, Helsinki, Finland.,Unit of General Practice, Helsinki University Central Hospital, Helsinki, Finland
| | - J B Whitfield
- QIMR Berghofer Medical Research Institute, Brisbane, Australia
| | - H Boeing
- Department of Epidemiology, German Institute of Human Nutrition Potsdam-Rehbrücke, Nuthetal, Germany
| | - R Hardy
- MRC Unit for Lifelong Health and Ageing, University College London, London, UK
| | - P Vollenweider
- Department of Internal Medicine, Internal Medicine, Lausanne University Hospital (CHUV), Lausanne, Switzerland
| | - K Leander
- Karolinska Institutet, Institute of Environmental Medicine, Unit of Cardiovascular Epidemiology, Stockholm, Sweden
| | - A Peters
- Deutsches Forschungszentrum für Herz-Kreislauferkrankungen (DZHK), Partner site Munich Heart Alliance, Munich, Germany.,Institute of Epidemiology II, Helmholtz Zentrum München - German Research Center for Environmental Health, Neuherberg, Germany
| | - P van der Harst
- Department of Cardiology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.,Department of Genetic, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.,Durrer Center for Cardiogenetic Research, ICIN-Neterlands Heart Institute, Utrecht, The Netherlands
| | - M Kumari
- Department of Epidemiology and Public Health, University College London, London, UK.,ISER, University of Essex, Colchester, UK
| | - T Lehtimäki
- Department of Clinical Chemistry, Fimlab Laboratories, Tampere, Finland.,School of Medicine, University of Tampere, Tampere, Finland
| | - A Meirhaeghe
- Inserm, U744, Institut Pasteur de Lille, University Lille Nord de France, Lille, France
| | - J Tuomilehto
- Diabetes Prevention Unit, National Institute for Health and Welfare, Helsinki, Finland.,Centre for Vascular Prevention, Danube-University Krems, Krems, Austria.,Instituto de Investigacion Sanitaria del Hospital Universario LaPaz (IdiPAZ), Madrid, Spain.,Diabetes Research Group, King Abdulaziz University, Jeddah, Saudi Arabia
| | - K-H Jöckel
- Institute for Medical Informatics, Biometry and Epidemiology, University of Duisburg-Essen, Essen, Germany
| | - Y Ben-Shlomo
- School of Social and Community Medicine, University of Bristol, Bristol, UK
| | - N Sattar
- BHF Glasgow Cardiovascular Research Centre, Faculty of Medicine, Glasgow, UK
| | - S E Baumeister
- Institute for Community Medicine, University Medicine Greifswald, Greifswald, Germany
| | - G Davey Smith
- MRC Integrative Epidemiology Unit (IEU), University of Bristol, Bristol, UK
| | - J P Casas
- Department of Non-Communicable Disease Epidemiology, London School of Hygiene and Tropical Medicine, London, UK.,Institute of Cardiovascular Science, University College London, London, UK
| | - D K Houston
- Department of Internal Medicine, Section on Gerontology and Geriatric Medicine, Wake Forest School of Medicine, Winston Salem, North Carolina, USA
| | - W März
- Vth Department of Medicine (Nephrology, Hypertensiology, Endocrinology, Diabetology, Rheumatology), Medical Faculty of Mannheim, University of Heidelberg, Mannheim, Germany.,Clinical Institute of Medical and Chemical Laboratory Diagnostics, Medical University of Graz, Graz, Austria.,Synlab Academy, Synlab Services GmbH, Mannheim, Germany
| | - K Christensen
- The Danish Aging Research Center and The Danish Twin Registry, Epidemiology, Biostatistics and Biodemography, Institute of Public Health, University of Southern Denmark, Odense, Denmark.,Department of Clinical Genetics, Odense University Hospital, Odense, Denmark.,Department of Clinical Biochemistry and Pharmacology, Odense University Hospital, Odense, Denmark
| | - V Gudnason
- Icelandic Heart Association, Kopavogur, Iceland.,University of Icelandic, Reykajvik, Iceland
| | - F B Hu
- Department of Nutrition, Harvard School of Public Health, Boston, Massachusetts, USA.,Department of Epidemiology, Harvard School of Public Health, Boston, Massachusetts, USA
| | - A Metspalu
- Estonian Genome Center, University of Tartu, Tartu, Estonia
| | - P M Ridker
- Division of Preventive Medicine, Brigham and Women's Hospital, Boston, Massachusetts, USA.,Harvard Medical School, Boston, Massachusetts, USA
| | - N J Wareham
- MRC Epidemiology Unit, Institute of Metabolic Science, Addenbrooke's Hospital, University of Cambridge, Cambridge, UK
| | - R J F Loos
- MRC Epidemiology Unit, Institute of Metabolic Science, Addenbrooke's Hospital, University of Cambridge, Cambridge, UK.,The Charles Bronfman Institute for Personalized Medicine, The Mindich Child Health and Development Institute, The Genetics of Obesity and Related Metabolic Traits Program, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - H Tiemeier
- Department of Epidemiology, Erasmus Medical Centre, Rotterdam, The Netherlands.,Department of Child and Adolescent Psychiatry, Erasmus Medical Centre, Rotterdam, The Netherlands.,Department of Psychiatry, Erasmus Medical Centre, Rotterdam, The Netherlands
| | - E Sonestedt
- Department of Clinical Sciences Malmö, Lund University, Malmö, Sweden
| | - T I A Sørensen
- Institute of Preventive Medicine, Bispebjerg and Frederiksberg Hospitals, The Capital Region, Copenhagen, Denmark.,MRC Integrative Epidemiology Unit (IEU), University of Bristol, Bristol, UK.,Novo Nordisk Foundation Centre for Basic Metabolic Research, Section on Metabolic Genetics, Faculty of Health and Medical Sciences, University of Copenhagen, Frederiksberg, Denmark
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Kumari M, Kasthuri J, Babu B, Satyanarayana P, Tchaleu B. A Validated Liquid Chromatographic Method for the Determination of Rifampicin and Isoniazid in Pharmaceutical Formulations. ACTA ACUST UNITED AC 2015. [DOI: 10.9734/bjpr/2015/12562] [Citation(s) in RCA: 5] [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: 11/09/2022]
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15
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Kumari M, Kumari SI, Grover P. Genotoxicity analysis of cerium oxide micro and nanoparticles in Wistar rats after 28 days of repeated oral administration. Mutagenesis 2014; 29:467-79. [DOI: 10.1093/mutage/geu038] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
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16
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Liao J, Head J, Kumari M, Stansfeld S, Singh-Manoux A, Brunner EJ. PP44 Impact of negative aspects of close relationships on cognitive ageing, the dark side of social relationships. Br J Soc Med 2014. [DOI: 10.1136/jech-2014-204726.139] [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]
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17
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Rao NS, Pradeep AR, Bajaj P, Kumari M, Naik SB. Simvastatin local drug delivery in smokers with chronic periodontitis: a randomized controlled clinical trial. Aust Dent J 2014; 58:156-62. [PMID: 23713634 DOI: 10.1111/adj.12042] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/22/2012] [Indexed: 11/28/2022]
Abstract
BACKGROUND Simvastatin (SMV) is a specific competitive inhibitor of 3-hydroxy-2-methyl-glutaryl coenzyme A reductase. Statins have recently been shown to promote bone formation. This study was designed to investigate the effectiveness of SMV 1.2% in an indigenously prepared biodegradable controlled release gel as an adjunct to scaling and root planing (SRP) in the treatment of smokers with chronic periodontitis. METHODS Forty patients were categorized into two treatment groups: SRP plus SMV 1.2% and SRP plus placebo. Clinical parameters were recorded at baseline and at 3, 6 and 9 months; they included modified sulcus bleeding index (mSBI), probing depth (PD) and clinical attachment level (CAL). At baseline, after 6 months and 9 months, radiologic assessment of intrabony defect (IBD) fill was done using computer-aided software. RESULTS Mean probing depth reduction and mean clinical attachment level gain was greater in the SMV group than the placebo group at all visits. Furthermore, significantly greater mean percentage of bone fill was found in the SMV group (32.37 ± 10.23%) compared to the placebo (4.18 ± 5.39%). CONCLUSIONS There was a greater decrease in mSBI and PD and more CAL gain with significant IBD fill at sites treated with SRP plus locally delivered SMV in smokers with chronic periodontitis.
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Affiliation(s)
- N S Rao
- Department of Periodontics, Government Dental College and Research Institute, Bangalore, India
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18
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Kumari M, Nath G. Mixed Convection with Thermal Radiation in a Vertical Pipe with Partially Heated or Cooled Wall. Proc Natl Acad Sci , India, Sect A Phys Sci 2014. [DOI: 10.1007/s40010-013-0093-5] [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] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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19
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Kivimäki M, Shipley MJ, Batty GD, Hamer M, Akbaraly TN, Kumari M, Jokela M, Virtanen M, Lowe GD, Ebmeier KP, Brunner EJ, Singh-Manoux A. Long-term inflammation increases risk of common mental disorder: a cohort study. Mol Psychiatry 2014; 19:149-50. [PMID: 23568195 PMCID: PMC3903110 DOI: 10.1038/mp.2013.35] [Citation(s) in RCA: 84] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- M Kivimäki
- Department of Epidemiology and Public Health, London, UK,E-mail:
| | - M J Shipley
- Department of Epidemiology and Public Health, London, UK
| | - G D Batty
- Department of Epidemiology and Public Health, London, UK
| | - M Hamer
- Department of Epidemiology and Public Health, London, UK
| | - T N Akbaraly
- Department of Epidemiology and Public Health, London, UK,Inserm, U1061, Montpellier, France
| | - M Kumari
- Department of Epidemiology and Public Health, London, UK
| | - M Jokela
- Finnish Institute of Occupational Health and Institute of Behavioral Sciences, University of Helsinki, Helsinki, Finland
| | - M Virtanen
- Finnish Institute of Occupational Health and Institute of Behavioral Sciences, University of Helsinki, Helsinki, Finland
| | - G D Lowe
- Institute of Cardiovascular and Medical Sciences, University of Glasgow, Glasgow, UK
| | - K P Ebmeier
- Department of Psychiatry, University of Oxford, Warneford Hospital, Oxford, UK
| | - E J Brunner
- Department of Epidemiology and Public Health, London, UK
| | - A Singh-Manoux
- Department of Epidemiology and Public Health, London, UK,Inserm, U1018, Villejuif, France
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20
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Kumari M, Naik SB, Rao NS, Martande SS, Pradeep AR. Clinical efficacy of a herbal dentifrice on dentinal hypersensitivity: a randomized controlled clinical trial. Aust Dent J 2013; 58:483-90. [DOI: 10.1111/adj.12109] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/21/2012] [Indexed: 11/30/2022]
Affiliation(s)
- M Kumari
- Department of Periodontics; Government Dental College and Research Institute; Bangalore India
| | - SB Naik
- Department of Conservative Dentistry and Endodontics; Government Dental College and Research Institute; Bangalore India
| | - NS Rao
- Department of Periodontics; Government Dental College and Research Institute; Bangalore India
| | - SS Martande
- Department of Periodontics; Government Dental College and Research Institute; Bangalore India
| | - AR Pradeep
- Department of Periodontics; Government Dental College and Research Institute; Bangalore India
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21
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Dhingra V, Taneja S, Kumar M, Kumari M. Influence of fiber inserts, type of composite, and gingival margin location on the microleakage in Class II resin composite restorations. Oper Dent 2013; 39:E9-15. [PMID: 23802641 DOI: 10.2341/12-349-l] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
This study evaluated the influence of fiber inserts, type of composites, and location of the gingival seat on microleakage in Class II resin composite restorations. Fifty noncarious human third molars were selected for the study. Standardized Class II box type cavities were prepared on the mesial and distal side of 45 teeth. The gingival margin was placed above the cementoenamel junction (CEJ) on the mesial side and below the CEJ on the distal side. The remaining five teeth received no cavity preparations. The prepared samples were divided randomly on the basis of type of composite and presence or absence of fiber inserts, into four experimental groups of 10 teeth each and two control groups of five teeth each. The groups were defined as follows: group I (n=10) - Z350 XT; group II (n=10) - Z350 XT with fibers; group III (n=10) - P90; group IV (n=10) - P90 with fibers; and group V (n=5) - positive controls, cavities were not restored; group VI (n=5) - negative controls, no cavities were prepared. The samples were stored in distilled water in incubator at 37°C for 24 hours and then subjected to 500 cycles of thermocycling (5°C and 55°C) with a dwell time of 15 seconds. They were then placed in a 2% methylene blue dye solution for 24 hours at 37°C. Samples were sectioned longitudinally and evaluated for microleakage at the occlusal and gingival margin under a stereomicroscope at 20× magnification. Kruskal-Wallis and Mann-Whitney U-tests were used to compare the mean leakage scores. Restorations with gingival margins in enamel showed significantly less microleakage. Significant reduction in microleakage was observed in groups restored with P90 composite than those restored with Z350 XT. No improvement in microleakage was observed with the use of fiber inserts (p>0.05).
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Abstract
BACKGROUND Animal studies suggest that maternal separation is associated with alterations in the hypothalamic-pituitary-adrenal (HPA) axis through effects that occur in a critical period following birth. Evidence for an association of the diurnal cortisol rhythm with maternal separation in humans is equivocal. METHOD We examined whether maternal separation in childhood is associated with diurnal cortisol pattern in 3712 middle-aged men and women. Two aspects of cortisol release were examined: the cortisol awakening response (CAR) and the diurnal slope in cortisol throughout the day. RESULTS Maternal separation in childhood was reported by 12% of participants. Those participants who reported maternal separation had a larger CAR and flatter slopes in cortisol levels compared to those who did not report maternal separation [adjusted mean CAR in those reporting no separation versus separation: 7.1, 95% confidence interval (CI) 6.7-7.5 v. 8.4, 95% CI 7.3-9.5, p = 0.02, corresponding to adjusted mean diurnal slope: -0.129 (95% CI -0.130 to -0.128) v. -0.126 (95% CI -0.128 to -0.124), p = 0.01]. In participants who reported maternal separation, the age of separation was not associated with either cortisol measure (p = 0.11). The association between maternal separation and slope in cortisol secretion was largely explained by smoking behaviour and marital status at the time of sample collection whereas that of the CAR was explained by childhood psychosocial, material factors and adult health behaviours. CONCLUSIONS Our findings suggest that maternal separation in childhood is associated with alterations in the diurnal cortisol pattern in middle age. These associations are predominantly accounted for by adult circumstances and behaviours.
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Affiliation(s)
- M Kumari
- Department of Epidemiology and Public Health, University College London, UK.
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23
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Yiannakouris N, Cooper J, Shah S, Drenos F, Ireland H, Stephens J, Li KW, Elkeles R, Godsland I, Kivimaki M, Hingorani A, Kumari M, Talmud P, Humphries S. IRS1 gene variants, dysglycaemic metabolic changes and type-2 diabetes risk. Nutr Metab Cardiovasc Dis 2012; 22:1024-1030. [PMID: 21917432 PMCID: PMC3657179 DOI: 10.1016/j.numecd.2011.05.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2011] [Revised: 05/25/2011] [Accepted: 05/31/2011] [Indexed: 10/26/2022]
Abstract
BACKGROUND AND AIMS A recent genome-wide association study identified rs2943641C > T, 500 kb from the insulin receptor substrate-1 gene (IRS1), as a type-2 diabetes (T2D) susceptibility locus. We aimed to replicate this association by meta-analysis and examine whether common variants within IRS1, present on the HumanCVD BeadChip, were associated with T2D risk. METHODS AND RESULTS We genotyped rs2943641 in 2389 prevalent or incident T2D patients and 6494 controls from two prospective and three case studies based in UK and in the European Atherosclerosis Research Study-II (EARSII; n = 714). Thirty-three IRS1 variants had been genotyped in the prospective Whitehall-II study (n = 4752) using the HumanCVD BeadChip. In a fixed-effects meta-analysis of the UK study cohorts rs2943641T allele was associated with 6% lower risk of T2D (p = 0.18), with T-allele carriers having an odds ratio (OR) of 0.89 (95% confidence interval [CI]: 0.80-1.00, p = 0.056) compared to CC subjects. The T-allele was also associated with lower fasting insulin and homeostasis model assessment index of insulin resistance in Whitehall-II and with lower post-load insulin after an oral glucose tolerance test in EARSII (all p < 0.05). None of the IRS1 variants on the chip showed linkage disequilibrium with rs2943641. In silico analysis with follow-up genotyping (total n = 9313) identified that the rare allele of the IRS1 promoter variant rs6725556A > G showed association with reduced T2D risk (OR per G-allele: 0.82, 95%CI: 0.69-0.96, p = 0.015). CONCLUSIONS We confirm the association of rs2943641T with T2D protection. There is a possible independent effect on risk of a putative IRS1 promoter variant.
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Key Words
- irs1
- gwas
- genetic variation
- type-2 diabetes
- hyperinsulinemia
- insulin resistance
- irs1, insulin receptor substrate-1
- t2d, type-2 diabetes
- cvd, cardiovascular disease
- gwas, genome-wide association studies
- snp, single nucleotide polymorphism
- homa-ir, homeostasis model assessment of insulin resistance
- ogtt, oral glucose tolerance test
- ld, linkage disequilibrium
- whii, whitehall-ii
- nphsii, northwick park heart study-ii
- udacs, universitycollege london diabetes and cardiovascular study
- eds, ealing diabetes study
- predict, prospective evaluation of diabetic ischemic heart disease by computed tomography
- earsii, european atherosclerosis research study-ii
- diagram, diabetes genetics replication and meta-analysis consortium
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Affiliation(s)
| | - J.A. Cooper
- Centre for Cardiovascular Genetics, Department of Medicine, Rayne Building, Royal Free and University College Medical School, 5 University Street, London WC1E 6JF, UK
| | - S. Shah
- University College London Genetics Institute, Department of Genetics, Environment and Evolution, Gower St, London WC1E 6BT, UK
| | - F. Drenos
- Centre for Cardiovascular Genetics, Department of Medicine, Rayne Building, Royal Free and University College Medical School, 5 University Street, London WC1E 6JF, UK
| | - H.A. Ireland
- Centre for Cardiovascular Genetics, Department of Medicine, Rayne Building, Royal Free and University College Medical School, 5 University Street, London WC1E 6JF, UK
| | - J.W. Stephens
- Diabetes Research Group, Institute of Life Sciences, School of Medicine, Swansea University, Swansea SA2 8PP, UK
| | - K.-W. Li
- Centre for Cardiovascular Genetics, Department of Medicine, Rayne Building, Royal Free and University College Medical School, 5 University Street, London WC1E 6JF, UK
| | - R. Elkeles
- Endocrinology and Metabolic Medicine, Imperial College London and St Mary’s Hospital, London W2 1NY, UK
| | - I.F. Godsland
- Endocrinology and Metabolic Medicine, Imperial College London and St Mary’s Hospital, London W2 1NY, UK
| | - M. Kivimaki
- Genetic Epidemiology Group, Department of Epidemiology and Public Health, University College London, 1-19 Torrington Street, London WC1E 6BT, UK
| | - A.D. Hingorani
- Genetic Epidemiology Group, Department of Epidemiology and Public Health, University College London, 1-19 Torrington Street, London WC1E 6BT, UK
| | - M. Kumari
- Genetic Epidemiology Group, Department of Epidemiology and Public Health, University College London, 1-19 Torrington Street, London WC1E 6BT, UK
| | - P.J. Talmud
- Centre for Cardiovascular Genetics, Department of Medicine, Rayne Building, Royal Free and University College Medical School, 5 University Street, London WC1E 6JF, UK
| | - S.E. Humphries
- Centre for Cardiovascular Genetics, Department of Medicine, Rayne Building, Royal Free and University College Medical School, 5 University Street, London WC1E 6JF, UK
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Mishra S, Mishra A, Chauhan P, Mishra S, Kumari M, Niranjan A, Nautiyal C. Pseudomonas putida NBRIC19 dihydrolipoamide succinyltransferase (SucB) gene controls degradation of toxic allelochemicals produced by Parthenium hysterophorus. J Appl Microbiol 2012; 112:793-808. [DOI: 10.1111/j.1365-2672.2012.05256.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Ranade AV, Tripathi Y, Rajalakshmi R, Vinodini NA, Soubhagya RN, Nayanatara AK, Rekha DK, Kumari M. Effect of vitamin E administration on histopathological changes in rat testes following torsion and detorsion. Singapore Med J 2011; 52:742-746. [PMID: 22009395] [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: 05/31/2023]
Abstract
INTRODUCTION Testicular torsion is a medical emergency, especially in male neonates and adolescents. It is a common clinical outcome and a significant urological issue. From the literature, it is evident that the use of antioxidants in the prevention of testicular reperfusion injury following detorsion is conflicting. This study was conducted to investigate the role of vitamin E in testicular reperfusion injury following detorsion. METHODS Male Wistar albino rats were divided into Groups I, II, III and IV. Only Group IV rats were pre-treated with vitamin E 100 mg/kg body weight for 30 days. Ischaemia was induced manually by rotating the rat testis to 720 degrees clockwise and counter rotating for reperfusion. The testes were fixed in Bouin's fluid and processed for histopathological examination. RESULTS A significant decrease in the standard tubular diameter and epithelial height was observed in Group III rats compared to those in Groups I and II. However, the seminiferous tubules in Group IV rats showed recovery in the standard tubular diameter and epithelial height when compared with the untreated control groups. CONCLUSION The results showed that vitamin E, when administered before torsion of the spermatic cord in rats, provided significant protection against acute testicular torsion and detorsion injury.
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Affiliation(s)
- A V Ranade
- Department of Anatomy, Gulf Medical College, PO Box 4184, Ajman, United Arab Emirates.
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Kumari M, Nikolopoulos I, Huf S, Corry D, Thakur K. 6066 POSTER Does the “Two Week Wait” Target Improve the Waiting Times for Specialist Review and Also Waiting Time Between First Seen by Colorectal Cancer Specialist and Diagnosis of Colorectal Cancer? Eur J Cancer 2011. [DOI: 10.1016/s0959-8049(11)71711-7] [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: 10/17/2022]
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Kumari M, Nikolopoulos I, Huf S, Thakur K. 9031 POSTER Does the “Two Week-Wait” Target Improve Survival in Patients With Lung Cancer in the UK? Eur J Cancer 2011. [DOI: 10.1016/s0959-8049(11)72343-7] [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: 11/15/2022]
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Talmud PJ, Cooper JA, Gaunt T, Holmes MV, Shah S, Palmen J, Drenos F, Shah T, Kumari M, Kivimaki M, Whittaker J, Lawlor DA, Day IN, Hingorani AD, Casas JP, Humphries SE. Variants of ADRA2A are associated with fasting glucose, blood pressure, body mass index and type 2 diabetes risk: meta-analysis of four prospective studies. Diabetologia 2011; 54:1710-9. [PMID: 21455730 PMCID: PMC3110279 DOI: 10.1007/s00125-011-2108-6] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [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] [Received: 08/24/2010] [Accepted: 02/08/2011] [Indexed: 11/28/2022]
Abstract
AIMS/HYPOTHESIS We quantified the effect of ADRA2A (encoding α-2 adrenergic receptor) variants on metabolic traits and type 2 diabetes risk, as reported in four studies. METHODS Genotype data for ADRA2A single nucleotide polymorphisms (SNPs) rs553668 and rs10885122 were analysed in >17,000 individuals (1,307 type 2 diabetes cases) with regard to metabolic traits and type 2 diabetes risk. Two studies (n = 9,437), genotyped using the Human Cardiovascular Disease BeadChip, provided 12 additional ADRA2A SNPs. RESULTS Rs553668 was associated with per allele effects on fasting glucose (0.03 mmol/l, p = 0.016) and type 2 diabetes risk (OR 1.17, 95% CI 1.04-1.31; p = 0.01). No significant association was observed with rs10885122. Of the 12 SNPs, several showed associations with metabolic traits. Overall, after variable selection, rs553668 was associated with type 2 diabetes risk (OR 1.38, 95% CI 1.09-1.73; p = 0.007). rs553668 (per allele difference 0.036 mmol/l, 95% CI 0.008-0.065) and rs17186196 (per allele difference 0.066 mmol/l, 95% CI 0.017-0.115) were independently associated with fasting glucose, and rs17186196 with fasting insulin and HOMA of insulin resistance (4.3%, 95% CI 0.6-8.1 and 4.9%, 95% CI 1.0-9.0, respectively, per allele). Per-allele effects of rs491589 on systolic and diastolic blood pressure were 1.19 mmHg (95% CI 0.43-1.95) and 0.61 mmHg (95% CI 0.11-1.10), respectively, and those of rs36022820 on BMI 0.58 kg/m(2) (95% CI 0.15-1.02). CONCLUSIONS/INTERPRETATION Multiple ADRA2A SNPs are associated with metabolic traits, blood pressure and type 2 diabetes risk. The α-2 adrenergic receptor should be revisited as a therapeutic target for reduction of the adverse consequences of metabolic trait disorders and type 2 diabetes.
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Affiliation(s)
- P J Talmud
- Centre for Cardiovascular Genetics, Department of Medicine, University College London, 5 University St, London, WC1E 6JF, UK.
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Quint JK, Donaldson GC, Kumari M, Talmud PJ, Hurst JR. SERPINA1 11478G->A variant, serum 1-antitrypsin, exacerbation frequency and FEV1 decline in COPD. Thorax 2011; 66:418-24. [DOI: 10.1136/thx.2010.152975] [Citation(s) in RCA: 8] [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: 11/04/2022]
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Karohl C, Veledar E, Raggi P, Su S, Vaccarino V, Kumari M, Tangpricha V. Reply to S-M Orton and GC Ebers. Am J Clin Nutr 2011. [DOI: 10.3945/ajcn.110.009944] [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: 11/14/2022] Open
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Ken-Dror G, Drenos F, Humphries SE, Talmud PJ, Hingorani AD, Kivimäki M, Kumari M, Bauer KA, Morrissey JH, Ireland HA. Haplotype and genotype effects of the F7 gene on circulating factor VII, coagulation activation markers and incident coronary heart disease in UK men. J Thromb Haemost 2010; 8:2394-403. [PMID: 20735728 PMCID: PMC3226948 DOI: 10.1111/j.1538-7836.2010.04035.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND Evidence for the associations of single nucleotide polymorphisms (SNPs) in the F7 gene and factor (F)VII levels and with risk of coronary heart disease (CHD) is inconsistent. We examined whether F7 tagging SNPs (tSNPs) and haplotypes were associated with FVII levels, coagulation activation markers (CAMs) and CHD risk in two cohorts of UK men. METHODS Genotypes for eight SNPs and baseline levels of FVIIc, FVIIag and CAMs (including FVIIa) were determined in 2773 healthy men from the Second Northwick Park Heart Study (NPHS-II). A second cohort, Whitehall II study (WH-II, n = 4055), was used for replication analysis of FVIIc levels and CHD risk. RESULTS In NPHS-II the minor alleles of three SNPs (rs555212, rs762635 and rs510317; haplotype H2) were associated with higher levels of FVIIag, FVIIc and FVIIa, whereas the minor allele for two SNPs (I/D323 and rs6046; haplotype H5) was associated with lower levels. Adjusted for classic risk factors, H2 carriers had a CHD hazard ratio of 1.34 [95% confidence interval (CI): 1.12-1.59; independent of FVIIc], whereas H5 carriers had a CHD risk of 1.29 (95% CI: 1.01-1.56; not independent of FVIIc) and significantly lower CAMs. Effects of haplotypes on FVIIc levels were replicated in WH-II, as was the association of H5 with higher CHD risk [pooled-estimate odds ratio (OR) 1.16 (1.00-1.36), P = 0.05], but surprisingly, H2 exhibited a reduced risk for CHD. CONCLUSION tSNPs in the F7 gene strongly influence FVII levels. The haplotype associated with low FVIIc level, with particularly reduced functional activity, was consistently associated with increased risk for CHD, whereas the haplotype associated with high FVIIc level was not.
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Affiliation(s)
- G Ken-Dror
- Centre for Cardiovascular Genetics, BHF Laboratories, The Rayne Building, Department of Medicine, Royal Free and University College Medical School, London, UK
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Miller MA, Kandala NB, Kumari M, Marmot MG, Cappuccio FP. BAS/BSCR53 Relationships between sleep duration and von Willebrand factor, fibrinogen and factor VII: Whitehall II study. Heart 2010. [DOI: 10.1136/hrt.2010.205781.64] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Ireland HA, Cooper JA, Talmud PJ, Hingorani AD, Kivimki M, Kumari M, Morris R, Tzoulaki I, Price J, Fowkes FG, Humphries SE. BAS/BSCR40 Coronary heart disease risk associated with the homozygous minor allele for endothelial protein C receptor Ser219Gly. Heart 2010. [DOI: 10.1136/hrt.2010.205781.51] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Burgess S, Thompson SG, Burgess S, Thompson SG, Andrews G, Samani NJ, Hall A, Whincup P, Morris R, Lawlor DA, Davey Smith G, Timpson N, Ebrahim S, Ben-Shlomo Y, Davey Smith G, Timpson N, Brown M, Ricketts S, Sandhu M, Reiner A, Psaty B, Lange L, Cushman M, Hung J, Thompson P, Beilby J, Warrington N, Palmer LJ, Nordestgaard BG, Tybjaerg-Hansen A, Zacho J, Wu C, Lowe G, Tzoulaki I, Kumari M, Sandhu M, Yamamoto JF, Chiodini B, Franzosi M, Hankey GJ, Jamrozik K, Palmer L, Rimm E, Pai J, Psaty B, Heckbert S, Bis J, Anand S, Engert J, Collins R, Clarke R, Melander O, Berglund G, Ladenvall P, Johansson L, Jansson JH, Hallmans G, Hingorani A, Humphries S, Rimm E, Manson J, Pai J, Watkins H, Clarke R, Hopewell J, Saleheen D, Frossard R, Danesh J, Sattar N, Robertson M, Shepherd J, Schaefer E, Hofman A, Witteman JCM, Kardys I, Ben-Shlomo Y, Davey Smith G, Timpson N, de Faire U, Bennet A, Sattar N, Ford I, Packard C, Kumari M, Manson J, Lawlor DA, Davey Smith G, Anand S, Collins R, Casas JP, Danesh J, Davey Smith G, Franzosi M, Hingorani A, Lawlor DA, Manson J, Nordestgaard BG, Samani NJ, Sandhu M, Smeeth L, Wensley F, Anand S, Bowden J, Burgess S, Casas JP, Di Angelantonio E, Engert J, Gao P, Shah T, Smeeth L, Thompson SG, Verzilli C, Walker M, Whittaker J, Hingorani A, Danesh J. Bayesian methods for meta-analysis of causal relationships estimated using genetic instrumental variables. Stat Med 2010; 29:1298-311. [PMID: 20209660 DOI: 10.1002/sim.3843] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Genetic markers can be used as instrumental variables, in an analogous way to randomization in a clinical trial, to estimate the causal relationship between a phenotype and an outcome variable. Our purpose is to extend the existing methods for such Mendelian randomization studies to the context of multiple genetic markers measured in multiple studies, based on the analysis of individual participant data. First, for a single genetic marker in one study, we show that the usual ratio of coefficients approach can be reformulated as a regression with heterogeneous error in the explanatory variable. This can be implemented using a Bayesian approach, which is next extended to include multiple genetic markers. We then propose a hierarchical model for undertaking a meta-analysis of multiple studies, in which it is not necessary that the same genetic markers are measured in each study. This provides an overall estimate of the causal relationship between the phenotype and the outcome, and an assessment of its heterogeneity across studies. As an example, we estimate the causal relationship of blood concentrations of C-reactive protein on fibrinogen levels using data from 11 studies. These methods provide a flexible framework for efficient estimation of causal relationships derived from multiple studies. Issues discussed include weak instrument bias, analysis of binary outcome data such as disease risk, missing genetic data, and the use of haplotypes.
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Swerdlow D, Sofat R, Shah T, Kuchenbaecker K, Mindell J, Kumari M, Kivimaki M, Casas J, Brunner E, Hingorani A. P93 OPTIMISING THE SELECTION OF GENETIC MARKERS FOR MENDELIAN RANDOMISATION EXPERIMENTS. ATHEROSCLEROSIS SUPP 2010. [DOI: 10.1016/s1567-5688(10)70160-4] [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: 10/19/2022]
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Shah S, Drenos F, Shah T, Palmen J, Sofat R, Kumari M, Pallas J, MacFarlane P, Whittaker J, Talmud P, Humphries S, Hingorani A. MS215 IDENTIFICATION OF GENES ASSOCIATED WITH QT INTERVAL USING THE 50K CARDIO-METABOLIC SNP CHIP: RESULTS FROM THE WHITEHALL II STUDY. ATHEROSCLEROSIS SUPP 2010. [DOI: 10.1016/s1567-5688(10)70716-9] [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: 10/19/2022]
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Laatsch A, Treszl A, Cooper J, Loos R, Wareham N, Nicaud V, Day I, Gaunt T, Kumari M, Wegscheider K, Talmud P. MS553 EVIDENCE FOR AN INSULIN-SENSITIVE, LDLR-INDEPENDENT MECHANISM OF PLASMA LIPID CLEARANCE IN HUMANS. ATHEROSCLEROSIS SUPP 2010. [DOI: 10.1016/s1567-5688(10)71053-9] [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: 11/16/2022]
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Shah S, Drenos F, Shah T, Palmen J, Vezzili C, Sofat R, Kumari M, Kivamaki M, Pallas J, MacFarlane P, Whittaker J, Talmud P, Humphries S, Hingorani A. IDENTIFICATION OF GENES ASSOCIATED WITH QT INTERVAL USING THE 50K CARDIO-METABOLIC SNP CHIP: RESULTS FROM THE WHITEHALL II STUDY. Atherosclerosis 2009. [DOI: 10.1016/j.atherosclerosis.2009.09.058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Humphries S, Talmud P, Drenos F, Shah S, Palmen S, Shah T, Kumari M, Kivimaki M, Pallas J, Casas J, Whittaker J, Hingorani A. EXPLORING THE GENETIC ARCHITECTURE OF LIPID TRAITS IN WHITEHALL II HEALTHY MEN AND WOMEN USING THE 50K-SNP CARDIO-METABOLIC CHIP. Atherosclerosis 2009. [DOI: 10.1016/j.atherosclerosis.2009.07.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Humphries S, Talmud P, Drenos F, Shah S, Palmen J, Shah T, Kumari M, Pallas J, Casas J, Whittaker J, Hingorani A. Abstract: 527 GENETIC DETERMINANTS OF LDL-C LEVELS: USING THE 50K CARDIO-METABOLIC CHIP TO EXPLORE THE GENETIC ARCHITECTURE OF LIPID TRAITS IN WHITEHALL II. ATHEROSCLEROSIS SUPP 2009. [DOI: 10.1016/s1567-5688(09)70076-5] [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: 11/17/2022]
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Gimeno D, Kivimäki M, Brunner EJ, Elovainio M, De Vogli R, Steptoe A, Kumari M, Lowe GDO, Rumley A, Marmot MG, Ferrie JE. Associations of C-reactive protein and interleukin-6 with cognitive symptoms of depression: 12-year follow-up of the Whitehall II study. Psychol Med 2009; 39:413-423. [PMID: 18533059 PMCID: PMC2788760 DOI: 10.1017/s0033291708003723] [Citation(s) in RCA: 405] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND A lack of longitudinal studies has made it difficult to establish the direction of associations between circulating concentrations of low-grade chronic inflammatory markers, such as C-reactive protein and interleukin-6, and cognitive symptoms of depression. The present study sought to assess whether C-reactive protein and interleukin-6 predict cognitive symptoms of depression or whether these symptoms predict inflammatory markers. METHOD In a prospective occupational cohort study of British white-collar civil servants (the Whitehall II study), serum C-reactive protein, interleukin-6 and cognitive symptoms of depression were measured at baseline in 1991-1993 and at follow-up in 2002-2004, an average follow-up of 11.8 years. Symptoms of depression were measured with four items describing cognitive symptoms of depression from the General Health Questionnaire. The number of participants varied between 3339 and 3070 (mean age 50 years, 30% women) depending on the analysis. RESULTS Baseline C-reactive protein (beta=0.046, p=0.004) and interleukin-6 (beta=0.046, p=0.005) predicted cognitive symptoms of depression at follow-up, while baseline symptoms of depression did not predict inflammatory markers at follow-up. After full adjustment for sociodemographic, behavioural and biological risk factors, health conditions, medication use and baseline cognitive systems of depression, baseline C-reactive protein (beta=0.038, p=0.036) and interleukin-6 (beta=0.041, p=0.018) remained predictive of cognitive symptoms of depression at follow-up. CONCLUSIONS These findings suggest that inflammation precedes depression at least with regard to the cognitive symptoms of depression.
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Affiliation(s)
- D Gimeno
- International Institute for Society and Health, Department of Epidemiology and Public Health, UCL Medical School, London, UK.
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Kumari M, Pop I. Mixed Convection Boundary Layer Flow Past a Horizontal Circular Cylinder Embedded in a Bidisperse Porous Medium. Transp Porous Media 2008. [DOI: 10.1007/s11242-008-9293-x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Kumari M, Nath G. Unsteady Natural Convection Flow in a Square Cavity Filled with a Porous Medium Due to Impulsive Change in Wall Temperature. Transp Porous Media 2008. [DOI: 10.1007/s11242-008-9285-x] [Citation(s) in RCA: 9] [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: 11/29/2022]
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Zhao JH, Brunner EJ, Kumari M, Singh-Manoux A, Hawe E, Talmud PJ, Marmot MG, Humphries SE. APOE polymorphism, socioeconomic status and cognitive function in mid-life--the Whitehall II longitudinal study. Soc Psychiatry Psychiatr Epidemiol 2005; 40:557-63. [PMID: 16021346 PMCID: PMC5063922 DOI: 10.1007/s00127-005-0925-y] [Citation(s) in RCA: 25] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/21/2005] [Indexed: 12/19/2022]
Abstract
OBJECTIVE The aim of this study was to investigate the association of the common apolipoprotein E gene (APOE) variants with cognitive function and cognitive decline in adult mid-life and explore the possibility that APOE genotype mediates the link between socioeconomic status (SES) and cognitive function. METHODS Data on cognitive function, as measured by five cognitive tests, together with APOE genotype were obtained in an occupational cohort (the Whitehall II study) of 6,004 participants aged 44-69 years (1997-1999). Cognitive change was examined in 2,717 participants who had cognitive function measured at baseline (1991-1993). RESULTS SES based on civil service employment grade was strongly related to cognitive function. There was no association between APOE genotype and employment grade. In women, participants with APOE-epsilon4 had a lower memory score (p<0.05), but the result was sensitive to data from a small number of individuals. A marginal cross-sectional difference in the semantic fluency score was found (p=0.07), and there was a relative decline at follow-up (p<0.001, net change=-1.19; 95% CI, -1.90 to -0.49) in those with APOE-epsilon4 genotypes. CONCLUSIONS APOE-epsilon4 has little influence on cognitive decline in mid-life, whereas SES is a strong determinant, although APOE genotype may emerge as an important factor in cognitive function in later life.
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Affiliation(s)
- J H Zhao
- Dept. of Epidemiology and Public Health, International Centre for Health and Society, 1-19 Torrington Place, London WC1E 6BT, UK.
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Kumari M, Pundir CS. Measurement of urinary oxalate by grain sorghum leaf oxalate oxidase immobilized to affixed alkylamine glass beads. Indian J Biochem Biophys 2004; 41:102-106. [PMID: 22900337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Oxalate in urine was measured by grain Sorghum leaf oxalate oxidase conjugated to alkyl amine glass beads affixed in a beaker. The minimum detection limit was 0.05 mM/L in urine. Recovery of added oxalate in urine was 80.5% and within and between assay, coefficients of variation (CV) were <4% and <5.5%, respectively. Urinary oxalate values obtained by the present method showed a good correlation (r = 0.947) with those by Sigma kit method. The method is not only free from tedious handling of free glass beads and C1 interference, but also has longer stability and reusability of immobilized enzyme compared to that of barley root and forage Sorghum leaf.
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Affiliation(s)
- M Kumari
- Biochemistry Research Laboratory, Department of BioSciences, Maharshi Dayanand University, Rohtak 124001, Haryana, India
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Sanz E, Hernández MA, Kumari M, Ratchina S, Stratchounsky L, Peiré MA, Lapeyre-Mestre M, Horen B, Kriska M, Krajnakova H, Momcheva H, Encheva D, Martínez-Mir I, Palop V. Pharmacological treatment of acute otitis media in children. A comparison among seven locations: Tenerife, Barcelona and Valencia (Spain), Toulouse (France), Smolensk (Russia), Bratislava (Slovakia) and Sofia (Bulgaria). Eur J Clin Pharmacol 2004; 60:37-43. [PMID: 14749912 DOI: 10.1007/s00228-003-0720-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [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: 09/20/2003] [Accepted: 12/09/2003] [Indexed: 11/25/2022]
Abstract
OBJECTIVE To describe patterns observed in the treatment of acute otitis media (AOM) in several locations of five countries. PATIENTS AND METHODS Cross-sectional, descriptive study. Random sample of 12,264 paediatric outpatients seen by paediatricians or general practitioners (GPs). Data on patient demographics, diagnoses and treatment were collected. Diagnoses were coded by ICD-9 and drugs by ATC classification. Patients diagnosed with AOM (ICD-9 codes: 381 and 382) were selected for analysis. RESULTS Cases of AOM (873) accounted for 7.1% of the sample. There is a clear variation in the percentage of children diagnosed with AOM and treated with antibiotics in the different locations, antibiotic prescriptions being higher in Barcelona (93% of children), and lowest in Smolensk (56.4 % of children were treated without antibiotics). The antibiotics used varied widely: ampicillin use is almost limited to Smolensk (26.7%) and Bratislava (13.8%), whereas amoxicillin plus clavulanic acid is the choice in Toulouse (33.8%), Valencia (30.2%) and Barcelona (28.9%), and cephalosporins are more frequently prescribed in Tenerife (51.7%). Finally, macrolides are used in Barcelona (18.3%), Valencia (17.5%) and Tenerife (13.6%), but not prescribed in Toulouse or Sofia. Prescriptions of anti-inflammatory drugs were only relevant in Valencia (31.7%), Tenerife (27.2%) and Toulouse (17.4%) and of otological preparations in Sofia, where almost each child received ear drops (91.9%). Nasal preparations are commonly used only in Sofia (41.9%), Bratislava (65.5%) and Smolensk (68.6%). CONCLUSION Despite the general agreement of most guidelines, wide differences in the treatment of uncomplicated AOM in children are observed. Non-antibiotic therapy for AOM and the use of first-choice antibiotics should be more actively encouraged in the primary care centres. Studies to measure prevailing rates of antibiotic resistance in these populations are needed.
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Affiliation(s)
- E Sanz
- Department of Clinical Pharmacology, School of Medicine, University of La Laguna, 38071 La Laguna, Tenerife, Spain,
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Brunner EJ, Hemingway H, Walker BR, Page M, Clarke P, Juneja M, Shipley MJ, Kumari M, Andrew R, Seckl JR, Papadopoulos A, Checkley S, Rumley A, Lowe GDO, Stansfeld SA, Marmot MG. Adrenocortical, autonomic, and inflammatory causes of the metabolic syndrome: nested case-control study. Circulation 2002; 106:2659-65. [PMID: 12438290 DOI: 10.1161/01.cir.0000038364.26310.bd] [Citation(s) in RCA: 342] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
BACKGROUND The causes of metabolic syndrome (MS), which may be a precursor of coronary disease, are uncertain. We hypothesize that disturbances in neuroendocrine and cardiac autonomic activity (CAA) contribute to development of MS. We examine reversibility and the power of psychosocial and behavioral factors to explain the neuroendocrine adaptations that accompany MS. METHODS AND RESULTS This was a double-blind case-control study of working men aged 45 to 63 years drawn from the Whitehall II cohort. MS cases (n=30) were compared with healthy controls (n=153). Cortisol secretion, sensitivity, and 24-hour cortisol metabolite and catecholamine output were measured over 2 days. CAA was obtained from power spectral analysis of heart rate variability (HRV) recordings. Twenty-four-hour cortisol metabolite and normetanephrine (3-methoxynorepinephrine) outputs were higher among cases than controls (+ 0.49, +0.45 SD, respectively). HRV and total power were lower among cases (both -0.72 SD). Serum interleukin-6, plasma C-reactive protein, and viscosity were higher among cases (+0.89, +0.51, and +0.72 SD). Lower HRV was associated with higher normetanephrine output (r=-0.19; P=0.03). Among former cases (MS 5 years previously, n=23), cortisol output, heart rate, and interleukin-6 were at the level of controls. Psychosocial factors accounted for 37% of the link between MS and normetanephrine output, and 7% to 19% for CAA. Health-related behaviors accounted for 5% to 18% of neuroendocrine differences. CONCLUSIONS Neuroendocrine stress axes are activated in MS. There is relative cardiac sympathetic predominance. The neuroendocrine changes may be reversible. This case-control study provides the first evidence that chronic stress may be a cause of MS. Confirmatory prospective studies are required.
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Affiliation(s)
- E J Brunner
- International Centre for Health and Society, Department of Epidemiology and Public Health, University College London, England.
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Pundir CS, Rani K, Garg P, Chaudhary R, Chandran P, Kumari M. Correlation between chemical composition of biliary calculi and sera of stone formers. Indian J Med Sci 2002; 56:373-5. [PMID: 12645161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
A quantitative chemical analysis of total cholesterol, bilirubin, calcium, inorganic phosphate and iron of three types of biliary calculi (cholesterol, pigment and mixed) of 40 gall stone former was carried out and correlated to with those of there sera. A moderately positive correlation for inorganic phosphate, Ca2+ and Fe2+ content of sera and calculi of cholesterol stone patient was found. A Good positive correlation for total cholesterol, a moderately positive correlation for bilirubin and iron but no correlation for inorganic phosphate and calcium content of sera and calculi of pigment stone patient was observed. A good moderately positive correlation for iron but no correlation for total cholesterol, bilirubin, inorganic phosphate and Ca2+ content of sera and calculi of stone patient was found.
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Affiliation(s)
- C S Pundir
- Biochemistry Research Laboratory, Department of Bio-Sciences, M. D. University, Rohtak-124001
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Shickle D, Carlisle J, Fryers P, Wallace S, Suckling R, Cork M, Bowns I, Beyleveld D, McDonagh A, Sandvik L, Mowinckel P, Abdelnoor M, Erikssen G, Erikssen J, White R, Altmann DR, Nanchahal K, Oliver S, Donovan JL, Peters TJ, Frankel S, Hamdy FC, Neal DE, Whincup PH, Gilg J, Papacosta O, Miller GJ, Alberti KGMM, Cook D, Lawlor DA, Ebrahim S, Smith GD, Lampe F, Morris R, Whincup P, Walker M, Ebrahim S, Shaper A, Brunner E, Shipley M, Hemingway H, Juneja M, Page M, Stansfeld S, Kumari M, Walker B, Andrew R, Seckl J, Papadopoulos A, Checkley S, Marmot M, Wood D, Sheehan J, Reilly M, Twomey H, Collins M, Daly A, Loningsigh S, Dolan E, Smith GD, Ben-Shlomo Y, Perry I, Moher M, Yudkkin P, Wright L, Turner R, Fuller A, Schofield T, Mant D, Feder G, Lilford RJ, Dobbie F, Warren R, Braunholtz D, Boaden R, Nolte E, Scholz R, Shkolnikov V, McKee M, Neilson S, Gilthorpe MS, Wilson RC, Jenkinson C, Coulter A, Bruster S, Richards N, Chandola T, Cromwell DA, Griffiths DA, Campbell MJ, Mollison J, McIntosh E, Grimshaw J, Thomas R, Rovers MM, Straatman H, Zielhuis GA, Hemminki E, Hove SL, Veerus P, Hakama M, Tuimala R, Rahu M, Ukoumunne OC, Gulliford MC, Shepstone L, Spencer N, Araya R, Rojas G, Fritsch RE, Acuna J, Lewis G, Ajdacic-Gross V, Bopp M, Eich D, Rossler W, Gutzwiller F, Corcoran P, Brennan A, Reilly M, Perry IJ, Middleton N, Whitley E, Frankel S, Dorling D, Gunnell D, Stanistreet D, Paine K, Scherf C, Morison L, Walraven G, O'Cathain A, Sampson F, Nicholl J, Munro J, Chapple A, Ziebland S, McPherson A, Herxheimer A, Shepperd S, Miller R, Brindle L, Donovan JL, Peters TJ, Quine S, O'Reilly M, Cahill M, Perry IJ, Maconochie N, Doyle P, Prior S, Ego A, Subtil D, Cosson M, Legoueff F, Houfflin-Debarge V, Querleu D, Rasmussen F, Smith GD, Sterne JAC, Tynelius P, Leon DA, Doyle P, Roman E, Maconochie N, Smith P, Beral V, Macfarlane A, Shoham-Vardi I, Winer N, Weitzman D, Levcovich A, Lahelma E, Kivela K, Roos E, Tuominen T, Dahl E, Diderichsen F, Elstad J, Lissau I, Lundberg O, Rahkonen O, Rasmussen NK, Yngwe MA, Gilmore AB, McKee M, Rose R, Salmond C, Crampton P, Tobias M, Li L, Manor O, Power C, Bruster S, Coulter A, Jenkinson C, Osler M, Prescott E, Gronbak M, Andersen AN, Due P, Engholm G, Drury N, Bruce J, Poobalan AS, Smith WCS, Jeffrey RR, Chambers WA, Mueller JE, Doring A, Stieber J, Thorand B, Lowel H, Chen R, Tunstall-Pedoe H, Redpath A, Macintyre K, Stewart S, Chalmers JWT, Boyd AJ, Finlayson A, Pell JP, McMurray JJV, Capewell S, Chalmers JWT, Macintyre K, Stewart S, Boyd AJ, Finlayson A, Pell JP, Redpath, McMurray JJV, Capewell S, Critchley J, Capewell S, Stefoski-Mikeljevic J, Johnston C, Cartman M, Sainsbury R, Forman D, Haward R, Morris E, Haward R, Forman D, Cartman M, Johnston C, Moebus S, Lehmann N, Goodacre S, Calvert N, Montgomery AA, Fahey T, Ben-Shlomo Y, Harding J, Anderson W, Florin D, Gillam S, Ely M, Nath U, Ben-Shlomo Y, Thomson RG, Morris HR, Wood NW, Lees AJ, Burn DJ, West RR, Fielder HM, Palmer SR, Dunstan F, Fone D, Higgs G, Senior M, Moss N, Campbell R, Pound P, Pope C, Britten N, Pill R, Morgan M, Donovan J, Rottingen JA, Garnett GP, Jagger C, Robine JM, Clarke M, Tobiasz-Adamczyk B, Szafraniec K, Lall R, Campbell MJ, Walter SJ, McGrother C, Donaldson M, Dallosso H, Dineen BP, Bourne RR, Ali SM, Huq DMN, Johnson GJ, Stang A, Jockel KH, Karvonen S, Vikat A, Rimpela M, Borras JM, Schiaffino A, Fernandez E, Borrell C, Garcia M, Salto E, Jefferis B, Power C, Graham H, Manor O, Yudkin P, Hey K, Roberts S, Welch S, Johnstone E, Murphy M, Griffiths S, Jones L, Walton R, Rasul F, Stansfeld SA, Hart CL, Gillis C, Smith GD, Marks D, Lambert H, Thorogood M, Neil H, Humphries S, Wonderling D, Surman G, Newdick H, Johnson A, Pharoah P, Glinianaia SV, Wright C, Rankin J, Basso O, Christensen K, Olsen J, Love A, Cheung WY, Williams J, Jackson S, Maddocks A, Hutchings H, Gissler M, Pakkanen M, Olausson PO, Owen CG, Whincup PH, Odoki K, Gilg JA, Cook DG, Aveyard P, Markham WA, Sherratt E, Bullock A, Macarthur C, Cheng KK, Daniels H, Murphy S, Egger M, Grimsley M, Green G, Read C, Redgrave P, Suokas A, McCulloch A, Zagozdzon P, Zaborski L, Cardano M, Costa G, Demaria M, Gnavi R, Spadea T, Vannoni F, Batty D, Leon DA, Rahi J, Morton S, Leon D, Stavola BDE, Gunnell D, Fouskakis D, Rasmussen F, Tynelius P, Harrison G, Spadea T, Faggiano F, Armaroli P, Maina L, Costa G, Ellison GTH, Travis R, Phillips M, Dedman D, Upton M, McCarthy A, Elwood P, Davies D, Shlomo YB, Smith GD, Berrington A, Cramer DW, Kuper H, Harlow BL, Titus-Ernstoff L, McLeod A, Stockton D, Brown H, Leyland AH, Liratsopulos G, West CR, Williams EMI, Abrams K, Sharp L, Little J, Brockton N, Cotton SC, Haites NE, Cassidy J, Kamali A, Kinsman J, Kintu P, Quigley M, Carpenter L, Kengeya-Kayondo J, Whitworth. JAG, Porter K, Noah N, Rawson H, Crampin A, Smith WCS, Group CMSOBOTMS, Jahn A, Kudzala A, Kitundu H, Lyamuya E, Razum O, Thomas SL, Wheeler JG, Hall AJ, Moore L, Dennehy A, Shemilt I, Belderson P, Brandon M, Harvey I, Moffatt P, Mugford M, Norris N, O'Brien M, Reading R, Robinson J, Schofield G, Shepstone L, Thoburn J, Cliffe S, Leiva A, Tookey P, Hamers F, Nicoll A, Critchley J, Capewell S, Ness AR, Hughes J, Elwood PC, Whitley E, Smith GD, Burr ML, Chase D, Roderick P, Cooper K, Davies R, Raftery J, Martikainen P, Kauppinen TM, Valkonen T, Somerville M, Barton A, Foy C, Basham M, Thomson H, Petticrew M, Morrison D, Chandola T, Biddulph J, McCarthy M, Gallivan S, Utley M, Kinra S, Black ME, Murphy M, Hey K, Jones L, Brzezinski ZJ, Mazur J, Mierzejewska E, Evans JG, Clarke R, Sherliker P, Birks J, Wrieden WL, Connaghan JP, Tunstall-Pedoe H, Silva IDS, Mangtani P, McCormack V, Bhakta D, Sevak L, McMichael AJ, Sauvaget C, Nagano J, Ogilvie D, Raffle AE, Alden B, Brett M, Babb PJ, Quinn M, Banks E, Beral V, Bull D, Reeves G, Leung GM, Lam TH, Thach TQ, Hedley AJ, Roderick P, Davies R, Crabbe D, Patel P, Raftery J, Bhandari P, Pearce R, Thomas MC, Walker M, Lennon LT, Thomson AG, Lampe FC, Shaper AG, Whincup PH, Fallon UB, Ben-Shlomo Y, Laurence KM, Lancashire RJ, Pharoah POD, Nevin NC, Smith GD, Fear NT, Roman E, Ansell P, Bull D, Nilsen TIL, Vatten LJ, Lane JA, Harvey RF, Murray LJ, Harvey IM, Donovan JL, Egger M, Wright CM, Parker L, Lamont D, Craft AW, Hallqvist J, Lundberg M, Diderichsen F, Boniface DR, McNeilly E, Bromen K, Pohlabeln H, Ahrens W, Jahn I, Jockel KH, Darby S, Doll R, Whitley E, Key T, Silcocks P, Linos D, Markaki I, Ntalles K, Riza E, Linos A, Memon A, Darif M, AL-Saleh K, Suresh A, de Vries CS, Bromley SE, Williams TJ, Farmer RDT, Ruiz M, Nieto A, Boshuizen HC, Nagelkerke NJD, Schellekens JFP, Peeters MF, Den Boer JW, Van Vliet JA, Neppelenbroek SE, Spaendonck MAECV, Mazloomzadeh S, Woodman CBJ, Collins S, Winter H, Bailey A, Young LS, Rosenbauer J, Herzig P, Giani G, Olowokure B, Spencer NJ, Hawker JI, Blair I, Smith R, Olowokure B, White J, Rush M, Hawker JI, Ramsay M, Watkins J, Mayor S, Matthews I, Crilly M, Bundred P, Prosser H, Walley T, Walker ZAK, Oakley L, Townsend JL, Donovan C, Smith H, Bell J, Hurst Z, Marshall S, Wild S, Whyman C, Barter M, Wishart K, Macleod C, Marinko K, Malmstrom M, Johansson SE, Sundquist J, Crampton P, Salmond C, Tobias M, Lumley J, Small R, Brown S, Watson L, Gunn J, Hawe P, Shiell A, Langer M, Steiner G, Tiefenthaler M, Adamek S, Ronsmans C, Khlat M, Waterstone M, Bewley S, Wolfe C, Hooper R, Moore L, Campbell R, Whelan A, Winter H, Macarthur C, Bick D, Lancashire R, Knowles H, Henderson C, Belfield C, Gee H, Biggerstaff D, Lilford R, Olsen J, the EuroMap Group, Spencer EA, Davey GK, Appleby PN, Key TJ., Breeze E, Leon D, Clarke R, Fletcher A, Boniface DR, McNeilly E, Lam TH, Ho SY, Hedley AJ, Mak KH, Canoy D, Khaw KT, Thorogood M, Appleby PN, Mann JI, Key TJ, Bobak M, Pikhart H, Martikainen P, Rose R, Marmot M, Rooney CIF, Cook L, Uren Z, Watson MC, Bond CM, Grimshaw JM, Mollison J, Ludbrook A, Poobalan AS, Bruce J, King PM, Krukowksi ZH, Smith WCS, Chambers WA, Seagroatt V, Goldacre M, Purcell B, Majeed A, Mayor S, Watkins J, Matthews I, Morris RW, Whincup PH, Emberson J, Lampe FC, Walker M, Wannamethee G, Shaper AG, Ebrahim S, May M, McCarron P, Frankel S, Smith GD, Yarnell J, Ebrahim S, May M, McCarron P, Shlomo YB, Stansfeld S, Gallacher J, Smith GD, Taylor FC, Rees K, Ebrahim S, Angelini GD, Ascione R, Muller-Nordhorn J, Binting S, Kulig M, Voller H, Willich SN, Group FTPS, Whincup PH, Emberson J, Papacosta O, Walker M, Lennon L, Thomson A, Sturdy PM, Anderson HR, Butland BK, Bland JM, Victor CR, Wilman C, Gupta R, Anderson HR, Mindell J, Joffe M, Nikiforov B, Pattenden S, Armstrong B, Hedley AJ, Wong CM, Thach TQ, Chau P, Lam TH, Anderson HR, Whitley E, Darby S, Deo H, Doll R, Raleigh VS, Logie J, Macrae K, Lawrenson R, Villegas R, Nielson S, O'Halloran DJ, Perry IJ, Gallacher JEJ, Elwood PC, Yarnell JWG, Shlomo YB, Pickering J, Evans JMM, Morris AD, Sedgwick JEC, Pearce AJ, Gulliford MC, Walker M, Thomson A, Whincup P, Lyons RA, Jones S, Richmond P, McCarthy J, Fone D, Lester N, Johansen A, Saunders J, Palmer SR, Barnes I, Banks E, Beral V, Jones GT, Watson KD, Taylor S, Papageorgiou AC, Silman AJ, Symmons DPM, Macfarlane GJ, Pope D, Hunt I, Birrell F, Silman A, Macfarlane G, Thorpe L, Thomas K, Fitter M, Brazier J, Macpherson H, Campbell M, Nicholl J, Morgan A, Roman M, Allison T, Symmons D, Urwin M, Brammah T, Roxby M, Williams G, Primatesta P, Falaschetti E, Poulter NR, Knibb R, Armstrong SJ, Chilvers CED, Logan RFA, Woods KL, Bhavnani V, Clarke A, Dowie J, Kennedy A, Pell I, Goldacre MJ, Kurina L, Seagroatt V, Yeates D, Watson E, Clements A, Yudkin P, Rose P, Bukach C, Mackay J, Lucassen A, Austoker J, Guillemin M, Brown W, Tell GS, Nurk E, Vollset SE, Nygard O, Refsum H, Ueland PM, Villegas R, Nielson S, Creagh D, Hinchion R, Perry IJ, Allen NE, Key TJ, Vatten LJ, Odegard RA, Nilsen ST, Austgulen R, Harding AH, Khaw KT, Wareham NJ, Riza E, Silva IDS, De Stavola B, Bradlow HL, Sepkovic DW, Linos D, Linos A. Society for Social Medicine and the International Epidemiological Association European Group. Abstracts of oral presentations. Br J Soc Med 2001. [DOI: 10.1136/jech.55.suppl_1.a1] [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: 11/03/2022]
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Abstract
Functional N-methyl-D-aspartate receptors consisting of NR1 and NR2 subunits are an important site of action of ethanol. Chronic ethanol treatment increases the NR1 polypeptide levels in vivo and in vitro. Chronic ethanol treatment in vitro does not significantly alter the NR1 mRNA levels, even though under similar culture conditions ethanol (50 mm, 5 days) enhances the half-life of NR1 mRNA in fetal cortical neurons. To address this phenomenon, we determined by reverse transcription-polymerase chain reaction and Western blotting whether ethanol (50 mm, 5 days) has a splice variant-specific effect on the expression of the NR1 subunit in mouse fetal cortical neurons. This report analyzes for the first time the distribution of all NR1 splice variants in these neurons. Our data indicate the presence of NR1-3a,b and NR1-4a,b splice variants in cortical neurons. Chronic ethanol treatment significantly decreased the mRNA levels of exon 5-containing NR1 splice variants (NR1-3b and NR1-4b) (-E5/+E5 = 4.6 in untreated neurons and 6.1 in ethanol-treated neurons) and had no effect on the mRNA levels of NR1-3 (+E21/-E22) and NR1-4 (-E21/-E22) splice variants. At the polypeptide level, chronic ethanol treatment significantly reduced exon 5-containing splice variants (NR1-3b and NR1-4b). However, ethanol (50 mm, 5 days) induced a significant increase in polypeptide levels of NR1-4 (-E21/-E22), without any effect on NR1-3 (+E21/-E22) polypeptide levels. These results demonstrate that chronic ethanol treatment has a selective effect on the expression of NR1 splice variants at both the mRNA and polypeptide levels in mouse fetal cortical neurons.
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Affiliation(s)
- M Kumari
- Department of Pharmacology, University of Texas Health Science Center, San Antonio, Texas 78229-3900, USA.
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