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Winstone JK, Pathak KV, Winslow W, Piras IS, White J, Sharma R, Huentelman MJ, Pirrotte P, Velazquez R. Correction: Glyphosate infiltrates the brain and increases pro-inflammatory cytokine TNFα: implications for neurodegenerative disorders. J Neuroinflammation 2024; 21:20. [PMID: 38233859 PMCID: PMC10792902 DOI: 10.1186/s12974-023-02990-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2024] Open
Affiliation(s)
- Joanna K Winstone
- Arizona State University‑Banner Neurodegenerative Disease Research Center at the Biodesign Institute, Arizona State University, 797 E Tyler St, Tempe, AZ, 85287, USA
- School of Life Sciences, Arizona State University, Tempe, AZ, USA
| | - Khyatiben V Pathak
- Integrated Mass Spectrometry Shared Resources (IMS-SR), City of Hope Comprehensive Cancer Center, Duarte, CA, USA
- Cancer & Cell Biology Division, Translational Genomics Research Institute, Phoenix, AZ, USA
| | - Wendy Winslow
- Arizona State University‑Banner Neurodegenerative Disease Research Center at the Biodesign Institute, Arizona State University, 797 E Tyler St, Tempe, AZ, 85287, USA
| | - Ignazio S Piras
- Arizona Alzheimer's Consortium, Phoenix, AZ, USA
- Neurogenomics Division, Translational Genomics Research Institute, Phoenix, AZ, USA
| | - Jennifer White
- Arizona State University‑Banner Neurodegenerative Disease Research Center at the Biodesign Institute, Arizona State University, 797 E Tyler St, Tempe, AZ, 85287, USA
| | - Ritin Sharma
- Integrated Mass Spectrometry Shared Resources (IMS-SR), City of Hope Comprehensive Cancer Center, Duarte, CA, USA
- Cancer & Cell Biology Division, Translational Genomics Research Institute, Phoenix, AZ, USA
| | - Matthew J Huentelman
- Arizona Alzheimer's Consortium, Phoenix, AZ, USA
- Neurogenomics Division, Translational Genomics Research Institute, Phoenix, AZ, USA
| | - Patrick Pirrotte
- Integrated Mass Spectrometry Shared Resources (IMS-SR), City of Hope Comprehensive Cancer Center, Duarte, CA, USA
- Cancer & Cell Biology Division, Translational Genomics Research Institute, Phoenix, AZ, USA
| | - Ramon Velazquez
- Arizona State University‑Banner Neurodegenerative Disease Research Center at the Biodesign Institute, Arizona State University, 797 E Tyler St, Tempe, AZ, 85287, USA.
- School of Life Sciences, Arizona State University, Tempe, AZ, USA.
- Arizona Alzheimer's Consortium, Phoenix, AZ, USA.
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Judd JM, Jasbi P, Winslow W, Serrano GE, Beach TG, Klein-Seetharaman J, Velazquez R. Inflammation and the pathological progression of Alzheimer's disease are associated with low circulating choline levels. Acta Neuropathol 2023; 146:565-583. [PMID: 37548694 PMCID: PMC10499952 DOI: 10.1007/s00401-023-02616-7] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 07/17/2023] [Accepted: 07/20/2023] [Indexed: 08/08/2023]
Abstract
Deficiency of dietary choline, an essential nutrient, is observed worldwide, with ~ 90% of Americans being deficient. Previous work highlights a relationship between decreased choline intake and an increased risk for cognitive decline and Alzheimer's disease (AD). The associations between blood circulating choline and the pathological progression in both mild cognitive impairment (MCI) and AD remain unknown. Here, we examined these associations in a cohort of patients with MCI with presence of either sparse or high neuritic plaque density and Braak stage and a second cohort with either moderate AD (moderate to frequent neuritic plaques, Braak stage = IV) or severe AD (frequent neuritic plaques, Braak stage = VI), compared to age-matched controls. Metabolomic analysis was performed on serum from the AD cohort. We then assessed the effects of dietary choline deficiency (Ch-) in 3xTg-AD mice and choline supplementation (Ch+) in APP/PS1 mice, two rodent models of AD. The levels of circulating choline were reduced while pro-inflammatory cytokine TNFα was elevated in serum of both MCI sparse and high pathology cases. Reduced choline and elevated TNFα correlated with higher neuritic plaque density and Braak stage. In AD patients, we found reductions in choline, its derivative acetylcholine (ACh), and elevated TNFα. Choline and ACh levels were negatively correlated with neuritic plaque load, Braak stage, and TNFα, but positively correlated with MMSE, and brain weight. Metabolites L-Valine, 4-Hydroxyphenylpyruvic, Methylmalonic, and Ferulic acids were significantly associated with circuiting choline levels. In 3xTg-AD mice, the Ch- diet increased amyloid-β levels and tau phosphorylation in cortical tissue, and TNFα in both blood and cortical tissue, paralleling the severe human-AD profile. Conversely, the Ch+ diet increased choline and ACh while reducing amyloid-β and TNFα levels in brains of APP/PS1 mice. Collectively, low circulating choline is associated with AD-neuropathological progression, illustrating the importance of adequate dietary choline intake to offset disease.
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Affiliation(s)
- Jessica M Judd
- Arizona State University-Banner Neurodegenerative Disease Research Center at the Biodesign Institute, Tempe, AZ, 85287, USA
- Arizona Alzheimer's Consortium, Phoenix, AZ, 85014, USA
| | - Paniz Jasbi
- School of Molecular Sciences, Arizona State University, Phoenix, AZ, 85287, USA
| | - Wendy Winslow
- Arizona State University-Banner Neurodegenerative Disease Research Center at the Biodesign Institute, Tempe, AZ, 85287, USA
- Arizona Alzheimer's Consortium, Phoenix, AZ, 85014, USA
| | - Geidy E Serrano
- Arizona Alzheimer's Consortium, Phoenix, AZ, 85014, USA
- Banner Sun Health Research Institute, Sun City, AZ, 85351, USA
| | - Thomas G Beach
- Arizona Alzheimer's Consortium, Phoenix, AZ, 85014, USA
- Banner Sun Health Research Institute, Sun City, AZ, 85351, USA
| | | | - Ramon Velazquez
- Arizona State University-Banner Neurodegenerative Disease Research Center at the Biodesign Institute, Tempe, AZ, 85287, USA.
- Arizona Alzheimer's Consortium, Phoenix, AZ, 85014, USA.
- School of Life Sciences, Arizona State University, 797 E Tyler St, Tempe, AZ, 85287, USA.
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Judd JM, Jasbi P, Winslow W, Serrano GE, Beach TG, Klein-Seetharaman J, Velazquez R. Low circulating choline, a modifiable dietary factor, is associated with the pathological progression and metabolome dysfunction in Alzheimer's disease. bioRxiv 2023:2023.05.06.539713. [PMID: 37214864 PMCID: PMC10197582 DOI: 10.1101/2023.05.06.539713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Most Americans (∼90%) are deficient in dietary choline, an essential nutrient. Associations between circulating choline and pathological progression in Alzheimer's disease (AD) remain unknown. Here, we examined these associations and performed a metabolomic analysis in blood serum from severe AD, moderate AD, and healthy controls. Additionally, to gain mechanistic insight, we assessed the effects of dietary choline deficiency (Ch-) in 3xTg-AD mice and choline supplementation (Ch+) in APP/PS1 mice. In humans, we found AD-associated reductions in choline, it's derivative acetylcholine (ACh), and elevated pro-inflammatory cytokine TNFα. Choline and ACh were negatively correlated with Plaque density, Braak stage, and TNFα, but positively correlated with MMSE and brain weight. Metabolites L-Valine, 4-Hydroxyphenylpyruvic, Methylmalonic, and Ferulic acids were associated with choline levels. In mice, Ch-paralleled AD severe, but Ch+ was protective. In conclusion, low circulating choline is associated with AD-neuropathological progression, illustrating the importance of dietary choline consumption to offset disease.
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Dave N, Judd JM, Decker A, Winslow W, Sarette P, Villarreal Espinosa O, Tallino S, Bartholomew SK, Bilal A, Sandler J, McDonough I, Winstone JK, Blackwood EA, Glembotski C, Karr T, Velazquez R. Dietary choline intake is necessary to prevent systems-wide organ pathology and reduce Alzheimer's disease hallmarks. Aging Cell 2023; 22:e13775. [PMID: 36642814 PMCID: PMC9924938 DOI: 10.1111/acel.13775] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 12/21/2022] [Accepted: 12/23/2022] [Indexed: 01/17/2023] Open
Abstract
There is an urgent need to identify modifiable environmental risk factors that reduce the incidence of Alzheimer's disease (AD). The B-like vitamin choline plays key roles in body- and brain-related functions. Choline produced endogenously by the phosphatidylethanolamine N-methyltransferase protein in the liver is not sufficient for adequate physiological functions, necessitating daily dietary intake. ~90% of Americans do not reach the recommended daily intake of dietary choline. Thus, it's imperative to determine whether dietary choline deficiency increases disease outcomes. Here, we placed 3xTg-AD, a model of AD, and non-transgenic (NonTg) control mice on either a standard laboratory diet with sufficient choline (ChN; 2.0 g/kg choline bitartrate) or a choline-deficient diet (Ch-; 0.0 g/kg choline bitartrate) from 3 to 12 (early to late adulthood) months of age. A Ch- diet reduced blood plasma choline levels, increased weight, and impaired both motor function and glucose metabolism in NonTg mice, with 3xTg-AD mice showing greater deficits. Tissue analyses showed cardiac and liver pathology, elevated soluble and insoluble Amyloid-β and Thioflavin S structures, and tau hyperphosphorylation at various pathological epitopes in the hippocampus and cortex of 3xTg-AD Ch- mice. To gain mechanistic insight, we performed unbiased proteomics of hippocampal and blood plasma samples. Dietary choline deficiency altered hippocampal networks associated with microtubule function and postsynaptic membrane regulation. In plasma, dietary choline deficiency altered protein networks associated with insulin metabolism, mitochondrial function, inflammation, and fructose metabolic processing. Our data highlight that dietary choline intake is necessary to prevent systems-wide organ pathology and reduce hallmark AD pathologies.
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Affiliation(s)
- Nikhil Dave
- Arizona State University‐Banner Neurodegenerative Disease Research Center at the Biodesign InstituteArizona State UniversityTempeArizonaUSA
| | - Jessica M. Judd
- Arizona State University‐Banner Neurodegenerative Disease Research Center at the Biodesign InstituteArizona State UniversityTempeArizonaUSA,Arizona Alzheimer's ConsortiumPhoenixArizonaUSA
| | - Annika Decker
- Arizona State University‐Banner Neurodegenerative Disease Research Center at the Biodesign InstituteArizona State UniversityTempeArizonaUSA
| | - Wendy Winslow
- Arizona State University‐Banner Neurodegenerative Disease Research Center at the Biodesign InstituteArizona State UniversityTempeArizonaUSA
| | - Patrick Sarette
- Arizona State University‐Banner Neurodegenerative Disease Research Center at the Biodesign InstituteArizona State UniversityTempeArizonaUSA
| | - Oscar Villarreal Espinosa
- Arizona State University‐Banner Neurodegenerative Disease Research Center at the Biodesign InstituteArizona State UniversityTempeArizonaUSA
| | - Savannah Tallino
- Arizona State University‐Banner Neurodegenerative Disease Research Center at the Biodesign InstituteArizona State UniversityTempeArizonaUSA,Arizona Alzheimer's ConsortiumPhoenixArizonaUSA,School of Life SciencesArizona State UniversityTempeArizonaUSA
| | - Samantha K. Bartholomew
- Arizona State University‐Banner Neurodegenerative Disease Research Center at the Biodesign InstituteArizona State UniversityTempeArizonaUSA,Arizona Alzheimer's ConsortiumPhoenixArizonaUSA,School of Life SciencesArizona State UniversityTempeArizonaUSA
| | - Alina Bilal
- Translational Cardiovascular Research Center and Department of Internal MedicineUniversity of Arizona College of MedicinePhoenixArizonaUSA
| | - Jessica Sandler
- Biosciences Mass Spectrometry Facility, Biodesign InstituteArizona State UniversityTempeArizonaUSA
| | - Ian McDonough
- Arizona State University‐Banner Neurodegenerative Disease Research Center at the Biodesign InstituteArizona State UniversityTempeArizonaUSA
| | - Joanna K. Winstone
- Arizona State University‐Banner Neurodegenerative Disease Research Center at the Biodesign InstituteArizona State UniversityTempeArizonaUSA,Arizona Alzheimer's ConsortiumPhoenixArizonaUSA,School of Life SciencesArizona State UniversityTempeArizonaUSA
| | - Erik A. Blackwood
- Translational Cardiovascular Research Center and Department of Internal MedicineUniversity of Arizona College of MedicinePhoenixArizonaUSA
| | - Christopher Glembotski
- Translational Cardiovascular Research Center and Department of Internal MedicineUniversity of Arizona College of MedicinePhoenixArizonaUSA
| | - Timothy Karr
- Arizona State University‐Banner Neurodegenerative Disease Research Center at the Biodesign InstituteArizona State UniversityTempeArizonaUSA,Biosciences Mass Spectrometry Facility, Biodesign InstituteArizona State UniversityTempeArizonaUSA
| | - Ramon Velazquez
- Arizona State University‐Banner Neurodegenerative Disease Research Center at the Biodesign InstituteArizona State UniversityTempeArizonaUSA,Arizona Alzheimer's ConsortiumPhoenixArizonaUSA,School of Life SciencesArizona State UniversityTempeArizonaUSA
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Winstone JK, Pathak KV, Winslow W, Piras IS, White J, Sharma R, Huentelman MJ, Pirrotte P, Velazquez R. Glyphosate infiltrates the brain and increases pro-inflammatory cytokine TNFα: implications for neurodegenerative disorders. J Neuroinflammation 2022; 19:193. [PMID: 35897073 PMCID: PMC9331154 DOI: 10.1186/s12974-022-02544-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [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] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 07/05/2022] [Indexed: 01/12/2023] Open
Abstract
BACKGROUND Herbicides are environmental contaminants that have gained much attention due to the potential hazards they pose to human health. Glyphosate, the active ingredient in many commercial herbicides, is the most heavily applied herbicide worldwide. The recent rise in glyphosate application to corn and soy crops correlates positively with increased death rates due to Alzheimer's disease and other neurodegenerative disorders. Glyphosate has been shown to cross the blood-brain barrier in in vitro models, but has yet to be verified in vivo. Additionally, reports have shown that glyphosate exposure increases pro-inflammatory cytokines in blood plasma, particularly TNFα. METHODS Here, we examined whether glyphosate infiltrates the brain and elevates TNFα levels in 4-month-old C57BL/6J mice. Mice received either 125, 250, or 500 mg/kg/day of glyphosate, or a vehicle via oral gavage for 14 days. Urine, plasma, and brain samples were collected on the final day of dosing for analysis via UPLC-MS and ELISAs. Primary cortical neurons were derived from amyloidogenic APP/PS1 pups to evaluate in vitro changes in Aβ40-42 burden and cytotoxicity. RNA sequencing was performed on C57BL/6J brain samples to determine changes in the transcriptome. RESULTS Our analysis revealed that glyphosate infiltrated the brain in a dose-dependent manner and upregulated TNFα in both plasma and brain tissue post-exposure. Notably, glyphosate measures correlated positively with TNFα levels. Glyphosate exposure in APP/PS1 primary cortical neurons increases levels of soluble Aβ40-42 and cytotoxicity. RNAseq revealed over 200 differentially expressed genes in a dose-dependent manner and cell-type-specific deconvolution analysis showed enrichment of key biological processes in oligodendrocytes including myelination, axon ensheathment, glial cell development, and oligodendrocyte development. CONCLUSIONS Collectively, these results show for the first time that glyphosate infiltrates the brain, elevates both the expression of TNFα and soluble Aβ, and disrupts the transcriptome in a dose-dependent manner, suggesting that exposure to this herbicide may have detrimental outcomes regarding the health of the general population.
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Affiliation(s)
- Joanna K Winstone
- Arizona State University-Banner Neurodegenerative Disease Research Center at the Biodesign Institute, Arizona State University, 797 E Tyler St, Tempe, AZ, 85287, USA
- School of Life Sciences, Arizona State University, Tempe, AZ, USA
| | - Khyatiben V Pathak
- Integrated Mass Spectrometry Shared Resources (IMS-SR), City of Hope Comprehensive Cancer Center, Duarte, CA, USA
- Cancer & Cell Biology Division, Translational Genomics Research Institute, Phoenix, AZ, USA
| | - Wendy Winslow
- Arizona State University-Banner Neurodegenerative Disease Research Center at the Biodesign Institute, Arizona State University, 797 E Tyler St, Tempe, AZ, 85287, USA
| | - Ignazio S Piras
- Arizona Alzheimer's Consortium, Phoenix, AZ, USA
- Neurogenomics Division, Translational Genomics Research Institute, Phoenix, AZ, USA
| | - Jennifer White
- Arizona State University-Banner Neurodegenerative Disease Research Center at the Biodesign Institute, Arizona State University, 797 E Tyler St, Tempe, AZ, 85287, USA
| | - Ritin Sharma
- Integrated Mass Spectrometry Shared Resources (IMS-SR), City of Hope Comprehensive Cancer Center, Duarte, CA, USA
- Cancer & Cell Biology Division, Translational Genomics Research Institute, Phoenix, AZ, USA
| | - Matthew J Huentelman
- Arizona Alzheimer's Consortium, Phoenix, AZ, USA
- Neurogenomics Division, Translational Genomics Research Institute, Phoenix, AZ, USA
| | - Patrick Pirrotte
- Integrated Mass Spectrometry Shared Resources (IMS-SR), City of Hope Comprehensive Cancer Center, Duarte, CA, USA
- Cancer & Cell Biology Division, Translational Genomics Research Institute, Phoenix, AZ, USA
| | - Ramon Velazquez
- Arizona State University-Banner Neurodegenerative Disease Research Center at the Biodesign Institute, Arizona State University, 797 E Tyler St, Tempe, AZ, 85287, USA.
- School of Life Sciences, Arizona State University, Tempe, AZ, USA.
- Arizona Alzheimer's Consortium, Phoenix, AZ, USA.
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Tallino S, Winslow W, Bartholomew SK, Velazquez R. Temporal and brain region-specific elevations of soluble Amyloid-β 40-42 in the Ts65Dn mouse model of Down syndrome and Alzheimer's disease. Aging Cell 2022; 21:e13590. [PMID: 35290711 PMCID: PMC9009111 DOI: 10.1111/acel.13590] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 02/13/2022] [Accepted: 03/01/2022] [Indexed: 12/12/2022] Open
Abstract
Down syndrome (DS) is a leading cause of intellectual disability that also results in hallmark Alzheimer's disease (AD) pathologies such as amyloid beta (Aβ) plaques and hyperphosphorylated tau. The Ts65Dn mouse model is commonly used to study DS, as trisomic Ts65Dn mice carry 2/3 of the triplicated gene homologues as occur in human DS. The Ts65Dn strain also allows investigation of mechanisms common to DS and AD pathology, with many of these triplicated genes implicated in AD; for example, trisomic Ts65Dn mice overproduce amyloid precursor protein (APP), which is then processed into soluble Aβ40-42 fragments. Notably, Ts65Dn mice show alterations to the basal forebrain, which parallels the loss of function in this region observed in DS and AD patients early on in disease progression. However, a complete picture of soluble Aβ40-42 accumulation in a region-, age-, and sex-specific manner has not yet been characterized in the Ts65Dn model. Here, we show that trisomic mice accumulate soluble Aβ40-42 in the basal forebrain, frontal cortex, hippocampus, and cerebellum in an age-specific manner, with elevation in the frontal cortex and hippocampus as early as 4 months of age. Furthermore, we detected sex differences in accumulation of Aβ40-42 within the basal forebrain, with females having significantly higher Aβ40-42 at 7-8 months of age. Lastly, we show that APP expression in the basal forebrain and hippocampus inversely correlates with Aβ40-42 levels. This spatial and temporal characterization of soluble Aβ40-42 in the Ts65Dn model allows for further exploration of the role soluble Aβ plays in the progression of other AD-like pathologies in these key brain regions.
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Affiliation(s)
- Savannah Tallino
- Arizona State University‐Banner Neurodegenerative Disease Research Center at the Biodesign Institute Arizona State University Tempe Arizona USA
- School of Life Sciences Arizona State University Tempe Arizona USA
| | - Wendy Winslow
- Arizona State University‐Banner Neurodegenerative Disease Research Center at the Biodesign Institute Arizona State University Tempe Arizona USA
| | - Samantha K. Bartholomew
- Arizona State University‐Banner Neurodegenerative Disease Research Center at the Biodesign Institute Arizona State University Tempe Arizona USA
| | - Ramon Velazquez
- Arizona State University‐Banner Neurodegenerative Disease Research Center at the Biodesign Institute Arizona State University Tempe Arizona USA
- School of Life Sciences Arizona State University Tempe Arizona USA
- Arizona Alzheimer’s Consortium Phoenix Arizona USA
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Winslow W, McDonough I, Tallino S, Decker A, Vural AS, Velazquez R. IntelliCage Automated Behavioral Phenotyping Reveals Behavior Deficits in the 3xTg-AD Mouse Model of Alzheimer's Disease Associated With Brain Weight. Front Aging Neurosci 2021; 13:720214. [PMID: 34483889 PMCID: PMC8414893 DOI: 10.3389/fnagi.2021.720214] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Accepted: 07/19/2021] [Indexed: 11/13/2022] Open
Abstract
Transgenic rodent models of Alzheimer’s disease (AD) were designed to study mechanisms of pathogenesis and connect these mechanisms with cognitive decline. Measurements of cognition in rodents can be confounded, however, by human handling and interaction; the IntelliCage was created to circumvent these issues while measuring various facets of cognition in a social environment with water consumption as the primary motivator for task completion. Here, for the first time, we examined the behavioral performance of 3xTg-AD mice in the IntelliCage. Seven- to 9-month-old female 3xTg-AD and non-transgenic (NonTg) mice were tested for 29 days in the IntelliCage to measure prefrontal cortical and hippocampal function. We found that a higher percentage of NonTg mice (86.96%) were able to successfully complete the training (adaptation) phases compared to their 3xTg-AD (57.14%) counterparts. Furthermore, the 3xTg-AD mice showed impairments in attention and working memory. Interestingly, we found that differences in body and brain weight between NonTg and 3xTg-AD mice were associated with whether mice were able to complete the IntelliCage tasks. 3xTg-AD mice that completed IntelliCage tasks had lower cortical insoluble amyloid-β40 fractions than their 3xTg-AD counterparts who failed to complete the tasks. Collectively, these results demonstrate deficits in cognition in the 3xTg-AD mouse and inform scientists of important factors to consider when testing this transgenic model in the IntelliCage.
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Affiliation(s)
- Wendy Winslow
- Arizona State University-Banner Neurodegenerative Disease Research Center at the Biodesign Institute, Arizona State University, Tempe, AZ, United States
| | - Ian McDonough
- Arizona State University-Banner Neurodegenerative Disease Research Center at the Biodesign Institute, Arizona State University, Tempe, AZ, United States
| | - Savannah Tallino
- Arizona State University-Banner Neurodegenerative Disease Research Center at the Biodesign Institute, Arizona State University, Tempe, AZ, United States
| | - Annika Decker
- Arizona State University-Banner Neurodegenerative Disease Research Center at the Biodesign Institute, Arizona State University, Tempe, AZ, United States
| | - Austin S Vural
- Arizona State University-Banner Neurodegenerative Disease Research Center at the Biodesign Institute, Arizona State University, Tempe, AZ, United States
| | - Ramon Velazquez
- Arizona State University-Banner Neurodegenerative Disease Research Center at the Biodesign Institute, Arizona State University, Tempe, AZ, United States.,School of Life Sciences, Arizona State University, Tempe, AZ, United States.,Arizona Alzheimer's Consortium, Phoenix, AZ, United States
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Dave N, Vural AS, Piras IS, Winslow W, Surendra L, Winstone JK, Beach TG, Huentelman MJ, Velazquez R. Identification of retinoblastoma binding protein 7 (Rbbp7) as a mediator against tau acetylation and subsequent neuronal loss in Alzheimer's disease and related tauopathies. Acta Neuropathol 2021; 142:279-294. [PMID: 33978814 PMCID: PMC8270842 DOI: 10.1007/s00401-021-02323-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 04/14/2021] [Accepted: 05/01/2021] [Indexed: 12/14/2022]
Abstract
Evidence indicates that tau hyper-phosphorylation and subsequent neurofibrillary tangle formation contribute to the extensive neuronal death in Alzheimer's disease (AD) and related tauopathies. Recent work has identified that increased tau acetylation can promote tau phosphorylation. Tau acetylation occurs at lysine 280 resulting from increased expression of the lysine acetyltransferase p300. The exact upstream mechanisms mediating p300 expression remain elusive. Additional work highlights the role of the epigenome in tau pathogenesis, suggesting that dysregulation of epigenetic proteins may contribute to acetylation and hyper-phosphorylation of tau. Here, we identify and focus on the histone-binding subunit of the Nucleosome Remodeling and Deacetylase (NuRD) complex: Retinoblastoma-Binding Protein 7 (Rbbp7). Rbbp7 chaperones chromatin remodeling proteins to their nuclear histone substrates, including histone acetylases and deacetylases. Notably, Rbbp7 binds to p300, suggesting that it may play a role in modulating tau acetylation. We interrogated Rbbp7 in post-mortem brain tissue, cell lines and mouse models of AD. We found reduced Rbbp7 mRNA expression in AD cases, a significant negative correlation with CERAD (neuritic plaque density) and Braak Staging (pathogenic tau inclusions) and a significant positive correlation with post-mortem brain weight. We also found a neuron-specific downregulation of Rbbp7 mRNA in AD patients. Rbbp7 protein levels were significantly decreased in 3xTg-AD and PS19 mice compared to NonTg, but no decreases were found in APP/PS1 mice that lack tau pathology. In vitro, Rbbp7 overexpression rescued TauP301L-induced cytotoxicity in immortalized hippocampal cells and primary cortical neurons. In vivo, hippocampal Rbbp7 overexpression rescued neuronal death in the CA1 of PS19 mice. Mechanistically, we found that increased Rbbp7 reduced p300 levels, tau acetylation at lysine 280 and tau phosphorylation at AT8 and AT100 sites. Collectively, these data identify a novel role of Rbbp7, protecting against tau-related pathologies, and highlight its potential as a therapeutic target in AD and related tauopathies.
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Affiliation(s)
- Nikhil Dave
- Arizona State University-Banner Neurodegenerative Disease Research Center at the Biodesign Institute, Arizona State University, Tempe, AZ, USA
| | - Austin S Vural
- Arizona State University-Banner Neurodegenerative Disease Research Center at the Biodesign Institute, Arizona State University, Tempe, AZ, USA
| | - Ignazio S Piras
- Neurogenomics Division, Translational Genomics Research Institute, Phoenix, AZ, USA
- Arizona Alzheimer's Consortium, Phoenix, AZ, USA
| | - Wendy Winslow
- Arizona State University-Banner Neurodegenerative Disease Research Center at the Biodesign Institute, Arizona State University, Tempe, AZ, USA
| | - Likith Surendra
- Arizona State University-Banner Neurodegenerative Disease Research Center at the Biodesign Institute, Arizona State University, Tempe, AZ, USA
| | - Joanna K Winstone
- Arizona State University-Banner Neurodegenerative Disease Research Center at the Biodesign Institute, Arizona State University, Tempe, AZ, USA
- School of Life Sciences, Arizona State University, Tempe, AZ, USA
| | - Thomas G Beach
- Arizona Alzheimer's Consortium, Phoenix, AZ, USA
- Civin Laboratory for Neuropathology, Banner Sun Health Research Institute, Sun City, AZ, USA
| | - Matthew J Huentelman
- Neurogenomics Division, Translational Genomics Research Institute, Phoenix, AZ, USA
- Arizona Alzheimer's Consortium, Phoenix, AZ, USA
| | - Ramon Velazquez
- Arizona State University-Banner Neurodegenerative Disease Research Center at the Biodesign Institute, Arizona State University, Tempe, AZ, USA.
- Arizona Alzheimer's Consortium, Phoenix, AZ, USA.
- School of Life Sciences, Arizona State University, Tempe, AZ, USA.
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Mifflin MA, Winslow W, Surendra L, Tallino S, Vural A, Velazquez R. Sex differences in the IntelliCage and the Morris water maze in the APP/PS1 mouse model of amyloidosis. Neurobiol Aging 2021; 101:130-140. [PMID: 33610962 PMCID: PMC8122060 DOI: 10.1016/j.neurobiolaging.2021.01.018] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 11/11/2020] [Accepted: 01/18/2021] [Indexed: 12/05/2022]
Abstract
Transgenic rodent models were created to decipher pathogenic mechanisms associated with Alzheimer’s disease (AD), and behavioral apparatuses such as the Morris water maze (MWM) are used to assess cognition in mice. The IntelliCage was designed to circumvent issues of traditional behavioral tests, such as frequent human handling. The motivation to complete IntelliCage tasks is water consumption, which is less stressful than escaping from a pool in the MWM. Here, we examined behavioral performances of mice in the IntelliCage and MWM tasks. Twelve-month-old male and female APP/PS1 and non-transgenic mice first underwent 42 days of IntelliCage testing to assess prefrontal cortical and hippocampal function followed by MWM testing for six days. We found that females performed better in the IntelliCage while males performed superiorly in the MWM. Mechanistically, female APP/PS1 mice had a higher Amyloid-β plaque load throughout the brain, which is inconsistent with their performance in the IntelliCage. Collectively, these results inform scientists about the sex-based differences when testing animals in different behavioral paradigms that tap similar cognitive functions.
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Affiliation(s)
- Marc A Mifflin
- Arizona State University-Banner Neurodegenerative Disease Research Center at the Biodesign Institute, Arizona State University, Tempe, AZ, USA
| | - Wendy Winslow
- Arizona State University-Banner Neurodegenerative Disease Research Center at the Biodesign Institute, Arizona State University, Tempe, AZ, USA
| | - Likith Surendra
- Arizona State University-Banner Neurodegenerative Disease Research Center at the Biodesign Institute, Arizona State University, Tempe, AZ, USA
| | - Savannah Tallino
- Arizona State University-Banner Neurodegenerative Disease Research Center at the Biodesign Institute, Arizona State University, Tempe, AZ, USA
| | - Austin Vural
- Arizona State University-Banner Neurodegenerative Disease Research Center at the Biodesign Institute, Arizona State University, Tempe, AZ, USA
| | - Ramon Velazquez
- Arizona State University-Banner Neurodegenerative Disease Research Center at the Biodesign Institute, Arizona State University, Tempe, AZ, USA; School of Life Sciences, Arizona State University, Tempe, AZ, USA.
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Velazquez R, Ferreira E, Knowles S, Fux C, Rodin A, Winslow W, Oddo S. Lifelong choline supplementation ameliorates Alzheimer's disease pathology and associated cognitive deficits by attenuating microglia activation. Aging Cell 2019; 18:e13037. [PMID: 31560162 PMCID: PMC6826123 DOI: 10.1111/acel.13037] [Citation(s) in RCA: 75] [Impact Index Per Article: 15.0] [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] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 08/13/2019] [Accepted: 08/28/2019] [Indexed: 11/29/2022] Open
Abstract
Currently, there are no effective therapies to ameliorate the pathological progression of Alzheimer's disease (AD). Evidence suggests that environmental factors may contribute to AD. Notably, dietary nutrients are suggested to play a key role in mediating mechanisms associated with brain function. Choline is a B-like vitamin nutrient found in common foods that is important in various cell functions. It serves as a methyl donor and as a precursor for production of cell membranes. Choline is also the precursor for acetylcholine, a neurotransmitter which activates the alpha7 nicotinic acetylcholine receptor (α7nAchR), and also acts as an agonist for the Sigma-1 R (σ1R). These receptors regulate CNS immune response, and their dysregulation contributes to AD pathogenesis. Here, we tested whether dietary choline supplementation throughout life reduces AD-like pathology and rescues memory deficits in the APP/PS1 mouse model of AD. We exposed female APP/PS1 and NonTg mice to either a control choline (1.1 g/kg choline chloride) or a choline-supplemented diet (5.0 g/kg choline chloride) from 2.5 to 10 months of age. Mice were tested in the Morris water maze to assess spatial memory followed by neuropathological evaluation. Lifelong choline supplementation significantly reduced amyloid-β plaque load and improved spatial memory in APP/PS1 mice. Mechanistically, these changes were linked to a decrease of the amyloidogenic processing of APP, reductions in disease-associated microglial activation, and a downregulation of the α7nAch and σ1 receptors. Our results demonstrate that lifelong choline supplementation produces profound benefits and suggest that simply modifying diet throughout life may reduce AD pathology.
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Affiliation(s)
- Ramon Velazquez
- Arizona State University‐Banner Neurodegenerative Disease Research Center at the Biodesign InstituteArizona State UniversityTempeAZUSA
| | - Eric Ferreira
- Arizona State University‐Banner Neurodegenerative Disease Research Center at the Biodesign InstituteArizona State UniversityTempeAZUSA
| | - Sara Knowles
- Arizona State University‐Banner Neurodegenerative Disease Research Center at the Biodesign InstituteArizona State UniversityTempeAZUSA
- School of Life SciencesArizona State UniversityTempeAZUSA
| | - Chaya Fux
- Arizona State University‐Banner Neurodegenerative Disease Research Center at the Biodesign InstituteArizona State UniversityTempeAZUSA
| | - Alexis Rodin
- Arizona State University‐Banner Neurodegenerative Disease Research Center at the Biodesign InstituteArizona State UniversityTempeAZUSA
| | - Wendy Winslow
- Arizona State University‐Banner Neurodegenerative Disease Research Center at the Biodesign InstituteArizona State UniversityTempeAZUSA
| | - Salvatore Oddo
- Arizona State University‐Banner Neurodegenerative Disease Research Center at the Biodesign InstituteArizona State UniversityTempeAZUSA
- School of Life SciencesArizona State UniversityTempeAZUSA
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Winslow W. Patient safety and quality are everybody's business. Nurs BC 2009; 41:24-25. [PMID: 19655523] [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: 05/28/2023]
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12
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Winslow W. Personal practice review inspires RNs to be lifelong learners. Nurs BC 2008; 40:16-19. [PMID: 18655614] [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: 05/26/2023]
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Plenge RM, Cotsapas C, Davies L, Price AL, de Bakker PIW, Maller J, Pe'er I, Burtt NP, Blumenstiel B, DeFelice M, Parkin M, Barry R, Winslow W, Healy C, Graham RR, Neale BM, Izmailova E, Roubenoff R, Parker AN, Glass R, Karlson EW, Maher N, Hafler DA, Lee DM, Seldin MF, Remmers EF, Lee AT, Padyukov L, Alfredsson L, Coblyn J, Weinblatt ME, Gabriel SB, Purcell S, Klareskog L, Gregersen PK, Shadick NA, Daly MJ, Altshuler D. Two independent alleles at 6q23 associated with risk of rheumatoid arthritis. Nat Genet 2007; 39:1477-82. [PMID: 17982456 DOI: 10.1038/ng.2007.27] [Citation(s) in RCA: 447] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2007] [Accepted: 09/26/2007] [Indexed: 02/07/2023]
Abstract
To identify susceptibility alleles associated with rheumatoid arthritis, we genotyped 397 individuals with rheumatoid arthritis for 116,204 SNPs and carried out an association analysis in comparison to publicly available genotype data for 1,211 related individuals from the Framingham Heart Study. After evaluating and adjusting for technical and population biases, we identified a SNP at 6q23 (rs10499194, approximately 150 kb from TNFAIP3 and OLIG3) that was reproducibly associated with rheumatoid arthritis both in the genome-wide association (GWA) scan and in 5,541 additional case-control samples (P = 10(-3), GWA scan; P < 10(-6), replication; P = 10(-9), combined). In a concurrent study, the Wellcome Trust Case Control Consortium (WTCCC) has reported strong association of rheumatoid arthritis susceptibility to a different SNP located 3.8 kb from rs10499194 (rs6920220; P = 5 x 10(-6) in WTCCC). We show that these two SNP associations are statistically independent, are each reproducible in the comparison of our data and WTCCC data, and define risk and protective haplotypes for rheumatoid arthritis at 6q23.
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Affiliation(s)
- Robert M Plenge
- Program in Medical and Population Genetics, Broad Institute of Harvard and Massachusetts Institute of Technology, Cambridge, Massachusetts 02142, USA.
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Adlersberg M, Winslow W. Contemporaneous learning. Nurs BC 2007; 39:24. [PMID: 17477186] [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: 05/15/2023]
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15
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Winslow W. A commitment to lifelong learning. Nurs BC 2007; 39:11-2. [PMID: 17380857] [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: 05/14/2023]
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Willson B, Winslow W. Nurse-client boundaries. Nurs BC 2006; 38:20. [PMID: 17260820] [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: 05/13/2023]
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17
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Winslow W. Peer feedback still a challenge for many. Nurs BC 2006; 38:21-2. [PMID: 17260821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
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Winslow W, Herman C. Practice environments: What's improving? What's not? Nurs BC 2006; 38:17-8. [PMID: 16676744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
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Abstract
BACKGROUND Long-term persistence of C. burnetii in infected animals was established in the 1950s and 60s, but the implications for human Q fever are not fully explored. AIM To compare the prevalence of markers of infection in a cohort of Q fever patients in Australia (up to 5 years after infection) with those in the 1989 Birmingham cohort (12 years after infection). DESIGN Case follow-up study. METHODS C. burnetii was tested for by: (i) antibodies to Phase 1 and 2 antigens in the three immunoglobulin classes; (ii) detection of DNA in bone marrow and peripheral blood mononuclear cells by PCR assays directed against several different targets in the genome; and (iii) attempts to isolate coxiellas in cell culture or mice from PCR-positive samples. Amplicon specificity was verified by fluorometric probing and by sequencing. Cross-contamination was excluded by extensive use of non-template controls, and in particular by the use of certain IS1111a target sequences. RESULTS Irrespective of clinical state, both groups remained seropositive, principally exhibiting medium levels of IgG antibody against C. burnetii Phase 2 antigen. C. burnetii genomic DNA was detected by PCR in 65% of bone marrow aspirates from Australian patients and approximately 88% of Birmingham patients. No coxiella were isolated from PCR positive samples. DISCUSSION We propose a provisional model for persistence. In Q fever without sequelae, the process is largely confined to the bone marrow. In Q fever fatigue syndrome (QFS), it is modulated by the patient's immunogenetic background to give higher levels of coxiella genomes in bone marrow and increased shedding into the peripheral blood. In Q fever endocarditis, late pregnancy, or during iatrogenic or other immunosuppression, the multiplication cycle is prolonged, and a potential source of live organisms.
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Affiliation(s)
- B P Marmion
- Q Fever Research Group, Infectious Diseases LAboratories, IMVS and Hanson Institute, Adelaide, South Australia.
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Winslow W, Herman C. Improving the practice environment: what's happening? what's working? Nurs BC 2004; 36:21-2. [PMID: 15633524] [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: 05/01/2023]
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21
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Winslow W. First, do no harm: the impact of the practice environment on patient safety. Nurs BC 2004; 36:26-8. [PMID: 15301079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/30/2023]
Abstract
Registered nurses have leadership skills, vision and commitment, a willingness to be responsible and accountable, and an understanding of organizational systems--all of which help to improve practice environments and protect patients from harm.
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Winslow W. Creating quality practice environments: not easy, but essential. Healthc Manage Forum 2004; 17:28-33. [PMID: 15682595 DOI: 10.1016/s0840-4704(10)60626-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/01/2023]
Abstract
Quality practice environments for registered nurses correlate positively with job satisfaction, productivity, recruitment, retention and client outcomes. However, when registered nurses work in environments that do not enable them to consistently meet their nursing practice standards, patient safety is jeopardized. This article describes the development of Canada's first guidelines for a quality practice environment for registered nurses in all practice environments. It is a tool healthcare leaders can use to improve the practice environment of all health professionals and to promote patient safety.
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Winslow W. Learning from the good news. Nurs BC 2003; 35:24-7. [PMID: 14619242] [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: 04/27/2023]
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Willson B, Winslow W. Professional boundaries. Nurs BC 2002; 34:18. [PMID: 12448905] [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: 02/27/2023]
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Winslow W. Practice environments that attract and retain nurses. Nurs BC 2001; 33:13-4. [PMID: 12152469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
Abstract
Research shows that there is a direct correlation between the quality of nurses' work environments and the quality of client care. RNABC's newest policy statement, Nursing Practice Environments for Safe and Appropriate Care, identifies the key elements in an organization that are associated with improved client outcomes through attraction and retention of nurses.
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Milazzo A, Hall R, Storm PA, Harris RJ, Winslow W, Marmion BP. Sexually transmitted Q fever. Clin Infect Dis 2001; 33:399-402. [PMID: 11438911 DOI: 10.1086/321878] [Citation(s) in RCA: 90] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2000] [Revised: 11/28/2000] [Indexed: 11/03/2022] Open
Abstract
We report the sexual transmission of Coxiella burnetii from a man with occupationally acquired Q fever to his wife. Fifteen days after coitus, his wife also developed serologically proven acute Q fever. C. burnetii DNA sequences were detected by polymerase chain reaction (PCR) performed on semen samples obtained from the husband at 4 and 15 months after the onset of acute Q fever, but PCR results were variable at 23 months, indicating the presence of few organisms.
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Affiliation(s)
- A Milazzo
- Communicable Disease Control Branch, Department of Human Services, University of Adelaide, Adelaide, South Australia 5000
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Winslow W. From wealth of oil to wealth of health care. Reflections 1997; 23:14-5. [PMID: 9295727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- W Winslow
- Al Ain Medical District and Al Ain Hospital, United Arab Emirates
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Abstract
Women's experiences during late pregnancy and the early postpartum period were examined relative to time of discharge from the hospital. Women who were discharged in 3 days or sooner were compared to women who were discharged after 3 days or sooner were compared to women who were discharged after 3 days, with respect to fatigue. A rest and activity questionnaire was completed by the women in the third trimester of pregnancy, in postpartum Week 1, and in postpartum Week 4. Few differences were found with respect to hours slept, number of sleep interruptions, perceptions of tiredness, and impact of tiredness on daily life; tiredness was a major aspect of women's experience, regardless of how long they stayed in hospital. The information will help nurses preparing women for their late pregnancy and postpartum experiences and will ease the concern of those who believe women will be more tired if they leave hospital soon after birth.
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Winslow W, Bayne L. The promise of birth centres. Leadersh Health Serv 1994; 3:14-8. [PMID: 10132046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
The authors argue that birth centres provide quality maternity care to healthy childbearing families at a lower cost than traditional hospital-based obstetrical services. They review the findings of two studies relating to birth centres in British Columbia: a survey of interest in birth centres among women of childbearing age and a survey of providers' opinions about possible features of a birth centre. Forces for and against the implementation of birth centres across Canada are identified.
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Winslow W. Design director: a new role for nurses. Can J Nurs Adm 1991; 4:11-5. [PMID: 2069962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
This article describes the experience of a director of nursing as she led a design team through the process of planning of a maternity renovation project. The advantages of incorporating the perspective of the clinical experts in hospital facilities design are high-lighted and the stages of the planning process and the role of the design director are outlined.
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Winslow W. Perinatal nursing education. Can Nurse 1988; 84:31-2. [PMID: 3383150] [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: 01/05/2023]
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