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Anjali K, Raghunathan R, Devi G, Dutta S. Photocatalytic degradation of methyl red using seaweed mediated zinc oxide nanoparticles. Biocatalysis and Agricultural Biotechnology 2022. [DOI: 10.1016/j.bcab.2022.102384] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Anjali KP, Sangeetha BM, Raghunathan R, Devi G, Dutta S. Seaweed Mediated Fabrication of Zinc Oxide Nanoparticles and their Antibacterial, Antifungal and Anticancer Applications. ChemistrySelect 2021. [DOI: 10.1002/slct.202003517] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- K. P. Anjali
- Department of Chemical Engineering National Institute of Technology Durgapur Durgapur West Bengal 713209 India
| | - B. M. Sangeetha
- Mechanical and Industrial Engineering Department National University of Science and Technology P.O Box 2322 Sultanate of Oman India
| | - R. Raghunathan
- Center for Bioscience and Nanoscience Research Tamil Nadu−21 India
| | - Geetha Devi
- Mechanical and Industrial Engineering Department National University of Science and Technology P.O Box 2322 Sultanate of Oman India
| | - Susmita Dutta
- Department of Chemical Engineering National Institute of Technology Durgapur Durgapur West Bengal 713209 India
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Ajith Y, Dimri U, Madhesh E, Gopalakrishnan A, Verma MR, Samad HA, Reena KK, Chaudhary AK, Devi G, Bosco J. Influence of weather patterns and air quality on ecological population dynamics of ectoparasites in goats. Int J Biometeorol 2020; 64:1731-1742. [PMID: 32556594 DOI: 10.1007/s00484-020-01952-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 05/10/2020] [Accepted: 06/04/2020] [Indexed: 06/11/2023]
Abstract
Ectoparasitism has a damaging impact on the economy of goat production in India, but the factors influencing its distribution and dynamics are less explored. The present study was designed to investigate the influence of environmental factors like weather and air quality parameters on the occurrence of different types of ectoparasites in goats of two agro-climatic regions of India, viz. the Upper Gangetic Plain (UGP) and the Western Himalayas (WH). The prevalence survey for ectoparasitism among goats was conducted during the four distinct climatic seasons (winter, summer, monsoon, autumn) in both regions. The season-wise data of weather parameters (maximum and minimum temperature, relative humidity in morning and evening, sunrise and sunset time, mean daily temperature and relative humidity, daily variation in temperature and relative humidity, and day length) and air quality parameters (air quality index (AQI), particulate matter 2.5 μm (PM2.5), particulate matter 10 μm (PM10)) of both regions were analyzed in relation with the ectoparasitic prevalence pattern of corresponding regions. The results depict a noticeable correlation between the studied parameters and seasonal variation in the occurrence of each type of ectoparasites. This outcome on the interaction of studied parameters and ectoparasitism is intriguing and it opens a huge scope for future studies on the biometeorological aspects of host-parasite ecological interplay and evolutionary biology. The better understanding of climatological aspects of ectoparasite occurrences helps goat farmers in formulating appropriate timely intervention strategies for the economic control of ectoparasites, which in turn tackles ectoparasiticidal drug resistance and reduces threat of vector-borne diseases.
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Affiliation(s)
- Y Ajith
- Division of Medicine, ICAR-Indian Veterinary Research Institute, Izatnagar, UP, 243122, India.
- Department of Veterinary Medicine, Faculty of Veterinary and Animal Sciences, Banaras Hindu University, Rajiv Gandhi South Campus, Mirzapur, UP, 231001, India.
- Banaras Hindu University, Varanasi, India.
| | - U Dimri
- Division of Medicine, ICAR-Indian Veterinary Research Institute, Izatnagar, UP, 243122, India
| | - E Madhesh
- Division of Medicine, ICAR-Indian Veterinary Research Institute, Izatnagar, UP, 243122, India
| | - A Gopalakrishnan
- Division of Medicine, ICAR-Indian Veterinary Research Institute, Izatnagar, UP, 243122, India
| | - Med Ram Verma
- Division of Livestock Economics, Statistics and Information Technology, ICAR-Indian Veterinary Research Institute, Izatnagar, UP, 243122, India
| | - H A Samad
- Division of Physiology & Climatology, ICAR-Indian Veterinary Research Institute, Izatnagar, UP, 243122, India
| | - K K Reena
- Division of Parasitology, ICAR-Indian Veterinary Research Institute, Izatnagar, UP, 243122, India
| | - A K Chaudhary
- Division of Medicine, ICAR-Indian Veterinary Research Institute, Izatnagar, UP, 243122, India
| | - G Devi
- Division of Medicine, ICAR-Indian Veterinary Research Institute, Izatnagar, UP, 243122, India
| | - J Bosco
- Division of Physiology & Climatology, ICAR-Indian Veterinary Research Institute, Izatnagar, UP, 243122, India
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Anjali KP, Sangeetha BM, Devi G, Raghunathan R, Dutta S. Bioprospecting of seaweeds (Ulva lactuca and Stoechospermum marginatum): The compound characterization and functional applications in medicine-a comparative study. J Photochem Photobiol B 2019; 200:111622. [PMID: 31678034 DOI: 10.1016/j.jphotobiol.2019.111622] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 08/17/2019] [Accepted: 09/09/2019] [Indexed: 12/20/2022]
Abstract
Seaweeds are considered to be one of the richest bio-reserves, comprising of numerous bioactive compounds with versatile properties and multiple activities. The present study examined the antibacterial activity of two types of seaweeds, Ulva lactuca (green) and Stoechospermum marginatum (brown) collected from Oman Coastal region against five multidrug-resistant bacteria. The aqueous extracts of the seaweeds showed better antibacterial activity compared to methanol extracts. The results of the antibacterial assay revealed the excellent inhibitory effects of U.lactuca with the maximum activity against E.coli(8 mm) followed by K.pneumonia(4 mm) and S.typhi(2 mm). S.marginatum formed a clear zone of inhibition only against E.coli(3 mm).The major phytochemical constituents identified in both the types of seaweeds were Alkaloids, Terpenoids, Saponins, Flavonoids, and Steroids. Fourier transform infrared spectroscopy (FTIR) results confirmed the presence of alcoholic/phenolic groups, and amide groups in the seaweed extracts. Gas chromatography-mass spectrometry (GC-MS) results evidenced the presence of bioactive compounds such as 5-Octadecenal, 1-Tricosanol, Neophytadiene, Lactaropallidin, Phytol, Fenretinide, Lucenin, Vincadifformine in U.lactuca. Additionally, U.lactuca displayed better antioxidant activity (33.05%) in the DPPH free radical scavenging activity test compared to the S.marginatum (21.51%). Thus, the green seaweed U.lactuca could be considered as a potential source of natural antioxidant and antibacterial agents for food and pharmaceutical products.
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Affiliation(s)
- K P Anjali
- National Institute of Technology, Durgapur, West Bengal 713209, India
| | - B M Sangeetha
- College of Engineering, National University of Science and Technology, P.O Box 2322, CPO Seeb 111, Al hail, Oman
| | - Geetha Devi
- College of Engineering, National University of Science and Technology, P.O Box 2322, CPO Seeb 111, Al hail, Oman
| | - R Raghunathan
- Center for Bioscience and Nanoscience Research, Tamil Nadu 21, India
| | - Susmita Dutta
- National Institute of Technology, Durgapur, West Bengal 713209, India.
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Devi G, Finetti P, Geradts J, McCall S, Morse M, Van Laere S, Bertucci F. Expression of x-linked inhibitor of apoptosis protein (XIAP) and its association with clinicopathological parameters in invasive breast cancers. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz240.098] [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: 11/13/2022] Open
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Rypens C, Van Berckelaer C, Billiet C, Hauspy J, Bertucci F, Devi G, Vermeulen P, Dirix L, Van Laere S. Inflammatory breast cancer cells are characterized by abrogated TGFβ1-dependent cell motility and SMAD3 activity. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz095.071] [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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Reddy NR, Padmaja BI, Devi G, Priya GK, Bindu GH, Babu NS. The effect of commonly consumed beverages on colour stability and surface roughness of two metal ceramic materials: An in-vitro study. J NTR Univ Health Sci 2018. [DOI: 10.4103/jdrntruhs.jdrntruhs_93_17] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Ajith Y, Dimri U, Gopalakrishnan A, Madhesh E, Jhambh R, Joshi V, Devi G. Th1/Th2 immune responses and oxidative stress in caprine flea allergy dermatitis. Parasite Immunol 2017; 39. [PMID: 29094355 DOI: 10.1111/pim.12500] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Accepted: 10/26/2017] [Indexed: 11/28/2022]
Abstract
Flea allergy dermatitis (FAD) is the common, often neglected skin disease of goats caused mainly by Ctenocephalides felis. This study aimed to evaluate the immuno-oxidative pathobiology of FAD in goats. Twelve goats from the same herd were divided into two groups of six animals each. The group I (FAD) included animals with natural flea infestation and severe dermatitis lesions. The group II (Healthy control) animals were free from any parasitic infestation. To assess the pathological changes, the markers of oxidative stress (lipid peroxidation, reduced glutathione and total antioxidant capacity), and immune status (Tumour necrosis factor alpha, Interleukin 10, Transforming growth factor beta 1 and Th1/Th2 cytokine ratio) were evaluated from the blood and the serum samples. Remarkable oxidative stress and severe inflammatory response with Th2 cytokine dominance were observed in flea infested animals. Highly antigenic agents of fleas, either secretory or excretory or structural, induced severe inflammatory responses and significant oxidative stress in caprine FAD. Massive release of cytokines may be responsible for severe skin inflammation and lesions in FAD in contrast to other Th2 dominant ectoparasitic skin conditions of goats'.
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Affiliation(s)
- Y Ajith
- Division of Medicine, Indian Veterinary Research Institute, Izatnagar, UP, India
| | - U Dimri
- Division of Medicine, Indian Veterinary Research Institute, Izatnagar, UP, India
| | - A Gopalakrishnan
- Division of Medicine, Indian Veterinary Research Institute, Izatnagar, UP, India
| | - E Madhesh
- Division of Medicine, Indian Veterinary Research Institute, Izatnagar, UP, India
| | - R Jhambh
- Division of Medicine, Indian Veterinary Research Institute, Izatnagar, UP, India
| | - V Joshi
- Division of Medicine, Indian Veterinary Research Institute, Izatnagar, UP, India
| | - G Devi
- Division of Medicine, Indian Veterinary Research Institute, Izatnagar, UP, India
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Kalita S, Pathak M, Devi G, Sarma HP, Bhattacharyya KG, Sarma A, Devi A. Utilization of Euryale ferox Salisbury seed shell for removal of basic fuchsin dye from water: equilibrium and kinetics investigation. RSC Adv 2017. [DOI: 10.1039/c7ra03014b] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Euryale ferox Salisbury (E. ferox) is an environmentally and economically important wetland macrophyte.
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Affiliation(s)
- S. Kalita
- Environmental Chemistry Laboratory
- Resource Management and Environment Section
- Life Science Division
- Institute of Advanced Study in Science and Technology
- Guwahati
| | - M. Pathak
- Environmental Chemistry Laboratory
- Resource Management and Environment Section
- Life Science Division
- Institute of Advanced Study in Science and Technology
- Guwahati
| | - G. Devi
- Environmental Chemistry Laboratory
- Resource Management and Environment Section
- Life Science Division
- Institute of Advanced Study in Science and Technology
- Guwahati
| | - H. P. Sarma
- Department of Environmental Science
- Gauhati University
- Guwahati
- India
| | | | - A. Sarma
- Department of Chemistry
- Morigaon College
- India
| | - A. Devi
- Environmental Chemistry Laboratory
- Resource Management and Environment Section
- Life Science Division
- Institute of Advanced Study in Science and Technology
- Guwahati
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Mukherjee T, Devi G, Geetha S, Anchan NJ, Sankarasubbaiyan S. A Comparison of Practice Pattern and Outcome of Twice-weekly and Thrice-weekly Hemodialysis Patients. Indian J Nephrol 2017; 27:185-189. [PMID: 28553037 PMCID: PMC5434683 DOI: 10.4103/0971-4065.202844] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Renal replacement therapy (RRT) options and practice varies in countries worldwide and is influenced by patients' choice, nephrologists' practice patterns, health system, payer practice, public policy, and socioeconomic factors. In India, hemodialysis (HD) remains the dominant RRT modality, and the practice is largely influenced by socioeconomics of the region of practice since third party payer is limited. Resource stretch to maximize outcome benefit is essential and HD session twice weekly is an improvized and cost-effective clinical practice. However, within the country, the patient characteristics, practice patterns, and outcomes of twice-weekly HD compared against patients dialyzed thrice weekly remain unclear. We did a retrospective analysis of patients who underwent twice- and thrice-weekly HD in a single center under similar settings. The patients on thrice a week dialysis were older and with a higher proportion of diabetics and were insured by private payers. Weight gain, ultrafiltration rates, blood pressures, and hemoglobin remained more favorable in the thrice-weekly patients. There was no significant difference in the hospitalization rates or mortality rates in the two groups. Patients who undergo twice-weekly HD have poorer intermediate measures of the outcome; although, morbidity and survival were not different in a small study population with short follow-up. The small sample size and the short duration of follow-up may limit the scope of findings of our study.
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Affiliation(s)
- T Mukherjee
- Department of Hemodialysis, DaVita Care (India) Pvt. Ltd., Bengaluru, Karnataka, India
| | - G Devi
- Department of Hemodialysis, DaVita Care (India) Pvt. Ltd., Bengaluru, Karnataka, India
| | - S Geetha
- Department of Hemodialysis, DaVita Care (India) Pvt. Ltd., Bengaluru, Karnataka, India
| | - N J Anchan
- Department of Hemodialysis, DaVita Care (India) Pvt. Ltd., Bengaluru, Karnataka, India
| | - S Sankarasubbaiyan
- Department of Hemodialysis, DaVita Care (India) Pvt. Ltd., Bengaluru, Karnataka, India
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Nasser J, Jesil A, Mohiuddin T, Ruqeshi MA, Devi G, Mohataram S. Experimental Investigation of Drilling Fluid Performance as Nanoparticles. ACTA ACUST UNITED AC 2013. [DOI: 10.4236/wjnse.2013.33008] [Citation(s) in RCA: 58] [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: 11/20/2022]
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Devi G, Levine D, Voss H, de Boisblanc M, Heier L, Halper J. Functional Imaging and Neurocognitive Correlates of Targeted High Frequency Repetitive Transcranial Magnetic Stimulation in Patients with Alzheimer's Disease (P04.190). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.p04.190] [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] Open
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Morse M, Niedzwiecki D, Marshall J, Garrett CR, Chang DZ, Aklilu M, Crocenzi TS, Cole DJ, Dessureault S, Hobeika A, Osada T, Clary BM, Hsu SD, Devi G, Bulusu A, Annechiarico R, Chadaram V, Clay TM, Lyerly HK. Survival rates among patients vaccinated following resection of colorectal cancer metastases in a phase II randomized study compared with contemporary controls. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.3557] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Lyerly HK, Hobeika A, Niedzwiecki D, Osada T, Marshall J, Garrett CR, Chang DZ, Aklilu M, Crocenzi TS, Cole DJ, Dessureault S, Hsu SD, Bulusu A, Clary BM, Annechiarico R, Devi G, Chadaram V, Clay TM, Morse M. A dendritic cell-based vaccine effects on T-cell responses compared with a viral vector vaccine when administered to patients following resection of colorectal metastases in a randomized phase II study. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.2533] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Massoud F, Devi G, Moroney JT, Stern Y, Lawton A, Bell K, Marder K, Mayeux R. The role of routine laboratory studies and neuroimaging in the diagnosis of dementia: a clinicopathological study. J Am Geriatr Soc 2000; 48:1204-10. [PMID: 11037005 DOI: 10.1111/j.1532-5415.2000.tb02591.x] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To determine the neuropathological diagnoses of longitudinally followed patients with potentially reversible causes of dementia and to examine the results of the "dementia work-up," especially neuroimaging, by comparison with the pathological diagnosis. DESIGN A neuropathologic series of 61 consecutive patients, with review of clinical, laboratory, neuroimaging, and pathological results. RESULTS Of the 61 patients, forty-eight (79%) had a clinical diagnosis of probable or possible Alzheimer's disease (AD). Compared with the pathological diagnosis, the sensitivity and specificity of the clinical diagnosis of AD were 96% and 79%, respectively. Of the 61 patients, 9 had abnormal laboratory tests, the correction of which did not improve the subsequent course. These patients were found to have AD8 and frontotemporal dementia on pathology. In two patients, neuroimaging was helpful in the clinical diagnoses of frontotemporal dementia and progressive supranuclear palsy (PSP). Neuroimaging revealed cerebrovascular disease in 18 patients, only two of whom were suspected clinically. Pathology confirmed AD in 17 and PSP in 1 of these patients. Sensitivity and specificity for the clinical diagnosis of cerebrovascular disease in comparison with pathology were 6% and 98%, respectively. With the added information from neuroimaging, that sensitivity increased to 59% and specificity decreased to 81%. CONCLUSIONS All cases with abnormal laboratory or neuroimaging results had AD or some other neurodegenerative disease on pathology. The "dementia work-up" did not reveal any reversible causes for dementia in this group of patients. Neuroimaging may have a role, especially in the diagnosis of possible AD with concomitant cerebrovascular disease.
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Affiliation(s)
- F Massoud
- Gertrude H. Sergievsky Center, New York, New York 10032, USA
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Abstract
Many neuropsychiatric disorders affect memory. Brain regions important in the neuroanatomic substrate of memory include the hippocampus, and sections of the frontal, temporal, and parietal cortices and the thalamus. Acetylcholine and many other neurotransmitters and neuromodulators including dopamine, glutamate, GABA, the catecholamines, and estrogen modulate cognitive function. Treatment approaches to memory loss typically use Alzheimer's dementia as the template, and are discussed in this report.
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Affiliation(s)
- G Devi
- New York Memory and Health Aging Services, Department of Medicine, Division of Neurology, Lenox Hill Hospital, 65 East 76th Street, New York, NY 10021, USA.
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Devi G, Fotiou A, Jyrinji D, Tycko B, DeArmand S, Rogaeva E, Song YQ, Medieros H, Liang Y, Orlacchio A, Williamson J, St George-Hyslop P, Mayeux R. Novel presenilin 1 mutations associated with early onset of dementia in a family with both early-onset and late-onset Alzheimer disease. Arch Neurol 2000; 57:1454-7. [PMID: 11030797 DOI: 10.1001/archneur.57.10.1454] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Two children of an adult with early-onset, autopsy-confirmed Alzheimer disease (AD) developed dementia in their late 20s and were subsequently found to have novel mutations in codon 434 of the presenilin 1 (PS1) gene on chromosome 14, a G-to-T substitution at nucleotide 1548 and a C-to-G substitution at nucleotide 1549. The younger of the 2 children had AD confirmed at postmortem examination. The disease course in these 3 individuals was characterized by cognitive and behavioral problems accompanied by myoclonus, seizures, and aphasia within 5 years after onset. Two grandparents had clinically diagnosed AD with stroke beginning at ages 78 and 66 years, but neither had a PS1 mutation. No other living family member was demented, nor did any other family member have the PS1 mutation. We conclude that the affected parent of the proband was a likely recent founder for these novel mutations in PS1. The family demonstrates the clinical and genetic heterogeneity of AD. Arch Neurol. 2000;57:1454-1457
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Affiliation(s)
- G Devi
- Taub Institute for Research on Alzheimer's Disease and the Aging Brain,The Gertrude Sergievsky Center, Columbia University, New York, NY 10032, USA
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Abstract
We examined 180 siblings of 127 probands with probable or possible Alzheimer's dementia (AD) in a family study of AD. The overall sensitivity of a simple family history questionnaire was 64% and the specificity was 84%. Sensitivity improved 90-100% with minimal decline in specificity when we considered clinic-based vs. population survey patients. Higher education among informants and the availability of a spouse or a sibling as informant significantly increased sensitivity. Awareness of such factors may improve the yield of the family history in AD using a simple questionnaire.
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Affiliation(s)
- G Devi
- Gertrude H. Sergievsky Center, Division of Epidemiology, Columbia University School of Public Health, New York, New York 10032, USA.
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Affiliation(s)
- C C Coulson
- Department of Obstetrics and Gynecology, The Penn State Geisinger Health System, The Milton S. Hershey Medical Center, Hershey, Pennsylvania, USA
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Devi G, Ottman R, Tang MX, Marder K, Stern Y, Mayeux R. Familial aggregation of Alzheimer disease among whites, African Americans, and Caribbean Hispanics in northern Manhattan. Arch Neurol 2000; 57:72-7. [PMID: 10634451 DOI: 10.1001/archneur.57.1.72] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
BACKGROUND Alzheimer disease (AD) aggregates in families. OBJECTIVE To compare the familial aggregation and lifetime risk of AD to the age of 90 years in the first-degree relatives of patients with AD and unrelated controls among Caribbean Hispanics, African Americans, and whites in Washington Heights, Manhattan, New York, NY. METHODS Family history of AD and demographic information were obtained from informants of 435 patients with probable or possible AD concerning 1577 siblings and parents and from 1094 controls without dementia concerning 3952 siblings and parents. RESULTS Lifetime risk of AD to the age of 90 years was 25.9% in relatives of patients and 19.1% in relatives of controls. Rate ratio (RR) for AD in relatives of patients compared with relatives of controls was 1.5 overall (95% confidence interval [CI], 1.2-1.9), and was greater for siblings (RR, 1.8; 95% CI, 1.2-2.5) than for parents (RR, 1.2; 95% CI, 0.9-1.8). Within ethnic groups, RR for AD among relatives was significantly elevated in whites (RR, 2.0; 95% CI, 1.2-3.3) and Hispanics (RR, 1.5; 95% CI, 1.1-2.1), but the difference did not reach statistical significance in African Americans (RR, 1.4; 95% CI, 0.7-2.7). Risk of AD was greater among relatives who were women compared with men (RR, 1.5; 95% CI, 1.2-1.9). CONCLUSIONS Familial aggregation of AD was increased among families of patients compared with those of controls in all 3 ethnic groups. Risk of AD was highest among siblings and women relatives.
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Affiliation(s)
- G Devi
- Gertrude H. Sergievsky Center, New York, NY 10032, USA
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Massoud F, Devi G, Stern Y, Lawton A, Goldman JE, Liu Y, Chin SS, Mayeux R. A clinicopathological comparison of community-based and clinic-based cohorts of patients with dementia. Arch Neurol 1999; 56:1368-73. [PMID: 10555657 DOI: 10.1001/archneur.56.11.1368] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
OBJECTIVES To compare the sensitivity and specificity of the clinical diagnosis of Alzheimer disease, the distribution of pathological causes, and the demographic and clinical characteristics of 2 different groups of patients with dementia. DESIGN Retrospective clinicopathological study. SETTING A memory disorder clinic in a university hospital and a multiethnic community. PATIENTS Sixty-three patients from a memory disorder clinic and 26 patients from a large community-based study who underwent autopsy after clinical evaluation. MAIN OUTCOME MEASURES Differential distribution of clinical and pathological findings, with clinicopathological correlations. RESULTS Clinic patients were younger at diagnosis, more educated, and more likely to be white. Of the 63 clinic patients we evaluated, 29 (46%) had a pathological diagnosis of definite AD, 15 (24%) had a diagnosis of mixed AD, and 19 (30%) had a diagnosis of another type of dementia. The pathological diagnoses in the community patients were distributed as follows: 6 (23%) had definite AD, 6 (23%) had mixed AD, 6 (23%) had cerebrovascular disease, and 8 (31%) had another type of dementia. The difference in distribution of pathological diagnoses between these 2 groups was only significant for cerebrovascular diseases. For patients seen at the clinic, the sensitivity of the clinical diagnosis of AD was 98% and the specificity was 84%; for the community group, the sensitivity was 92% and the specificity was 79%. CONCLUSIONS The difference in sensitivity and specificity of clinical diagnosis was not statistically significant between the groups of clinic patients and community patients. Dementia associated with cerebrovascular disease was more prevalent in the community sample. This difference may be attributable to clinical and demographic differences between the 2 groups.
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Affiliation(s)
- F Massoud
- Gertrude H Sergievsky Center, Columbia University College of Physicians and Surgeons and Columbia-Presbyterian Medical Center, New York, NY 10032, USA.
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Rosenfeld RG, Hwa V, Wilson L, Lopez-Bermejo A, Buckway C, Burren C, Choi WK, Devi G, Ingermann A, Graham D, Minniti G, Spagnoli A, Oh Y. The insulin-like growth factor binding protein superfamily: new perspectives. Pediatrics 1999; 104:1018-21. [PMID: 10506255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/14/2023] Open
Abstract
The insulin-like growth factor (IGF) binding proteins (IGFBPs) were initially identified as carrier proteins for IGF-I and IGF-II in a variety of biologic fluids. Their presumed function was to protect IGF peptides from degradation and clearance, increase the half-life of the IGFs, and deliver them to appropriate tissue receptors. The concept of IGFBPs as simple carrier proteins has been complicated, however, by a number of observations: 1) the six IGFBPs vary in their tissue expression and their regulation by other hormones and growth factors; 2) the IGFBPs are subjected to proteolytic degradation, thereby altering their affinities for the IGFs; 3) IGFBP-3 and IGFBP-5, in addition to binding IGFs, also can associate with an acid-labile subunit, thereby increasing further the half-life of the IGFs; 4) in addition to modifying the access of IGF peptides to IGF and insulin receptors, several of the IGFBPs may be capable of increasing IGF action; 5) some of the IGFBPs may be capable of IGF-independent regulation of cell growth; 6) some of the IGFBPs are associated with cell membranes or possibly with membrane receptors; and 7) some of the IGFBPs have nuclear recognition sites and may be found within the nucleus. Additionally, a number of cDNAs identified recently have been found to encode proteins that bind IGFs, but with substantially lower affinities than is the case with IGFBPs. The N-terminal regions of the predicted proteins are structurally homologous to the classic IGFBPs, with conservation of the cysteine-rich region. These observations suggest that these low-affinity binders are members of an IGFBP superfamily, capable of regulating cell growth by both IGF-dependent and IGF-independent mechanisms.insulin-like growth factor, insulin-like growth factor binding proteins.
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Affiliation(s)
- R G Rosenfeld
- Department of Pediatrics, Oregon Health Science University, Portland, Oregon 97201, USA.
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Abstract
OBJECTIVE To examine the influence of the proband's APOE genotype on AD among first-degree relatives in a community-based study of African Americans, whites, and Caribbean Hispanics. METHODS History of AD and demographic information were obtained on 1,073 siblings and parents of 312 patients with AD and 2,722 siblings and parents of 802 nondemented controls. APOE genotyping was performed on all 1,114 patients and controls. RESULTS A higher proportion of patients with AD (35%) than controls (27%) had one or more APOE-epsilon4 alleles (p = 0.03). When compared with relatives of controls without an APOE-epsilon4 allele, the risk for AD was increased in first-degree relatives of both patients (rate ratio [RR] = 1.9, 95% confidence interval [CI] = 1.2 to 3.1) and controls (RR = 1.8, 95% CI = 1.2 to 2.6) with one or more APOE-epsilone alleles, regardless of ethnic group. There was a similar trend of increased risk in relatives of patients without an APOE-epsilon4 allele, but this was limited to Hispanics and African Americans. CONCLUSIONS The presence of an APOE-epsilon4 allele increases risk for AD among first-degree relatives, regardless of the probands' disease status, among all ethnic groups. Relatives of patients without an APOE-epsilon4 allele were also at increased risk for AD among Hispanics and African Americans, suggesting that other genes or risk factors may influence risk.
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Affiliation(s)
- G Devi
- Gertrude H. Sergievsky Center, Department of Neurology, College of Physicians and Surgeons, New York, NY 10032, USA
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Abstract
Little is known about the person behind the eponymous dementia, Alois Alzheimer. We wished to study his life and contributions to the field of neuroscience. All cited articles about Alzheimer by his contemporaries and selected correspondence by him was translated from German. Additional personal information was obtained from his granddaughter. Alois Alzheimer made seminal contributions to the field of neuroscience, not only through his own research but also through the numerous scientists and physicians whom he taught. His contributions made a lasting impact not only in the area of Alzheimer disease but also other aspects of brain disease. In addition, he emerges as a complex person who coped successfully with numerous personal and career-related dilemmas that remain relevant in the academic environment today.
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Affiliation(s)
- G Devi
- Gertrude H. Sergievsky Center, Taub Alzheimer Disease Research Center, New York, New York 10032, USA
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Garmroudi F, Devi G, Slentz DH, Schaffer BS, MacDonald RG. Truncated forms of the insulin-like growth factor II (IGF-II)/mannose 6-phosphate receptor encompassing the IGF-II binding site: characterization of a point mutation that abolishes IGF-II binding. Mol Endocrinol 1996; 10:642-51. [PMID: 8776724 DOI: 10.1210/mend.10.6.8776724] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Complete understanding of the functional significance of insulin-like growth factor II (IGF-II) binding by the IGF-II/mannose-6-phosphate (Man-6-P) receptor requires mapping and ultimately mutational analysis of the receptor's IGF-II binding domain. Recent advances have localized the IGF-II binding site to extracytoplasmic repeats 10-11. To improve resolution of the binding site map, a nested set of epitope-tagged, truncated forms of the human IGF-II/Man-6-P receptor were transiently expressed in COS-7 cells. The IGF-II binding properties of truncated receptors immunoprecipitated from cell lysates and conditioned media were determined by affinity cross-linking. From the largest truncated receptor, encompassing extracytoplasmic repeats 8-11 (M(r) 68 K), through the smallest, comprised primarily of repeat 11 (M(r) 23 K), all were able to bind and cross-link to IGF-II. As a group, the truncated receptors had similar affinities for IGF-II, but with relative binding affinities 5-to 10-fold lower than those of full-length receptors. A point mutation substituting threonine for isoleucine at residue 1572, located in the NH2-terminal half of repeat 11, completely abolished IGF-II binding. We conclude that repeat 11 of the IGF-II/Man-6-P receptor's extracytoplasmic domain contains the minimal elements required for binding and cross-linking to IGF-II, and that lle1572 and other residues within the NH2-terminal half of repeat 11 are particularly important for IGF-II interaction.
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Affiliation(s)
- F Garmroudi
- Department of Biochemistry and Molecular Biology, University of Nebraska Medical Center, Omaha 68198-4525, USA
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Devi G, Swain S. A study of social attitude towards maternity care in a rural Indian community. Indian J Matern Child Health 1993; 4:84-6. [PMID: 12287005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/19/2023]
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Devi G. Geriatric nursing. Nurs J India 1991; 82:312-4. [PMID: 1809942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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