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Rajabli F, Seixas AA, Akgun B, Adams LD, Inciute J, Hamilton KL, Whithead PG, Konidari I, Gu T, Arvizu J, Golightly CG, Starks TD, Laux R, Byrd GS, Haines JL, Beecham GW, Griswold AJ, Vance JM, Cuccaro ML, Pericak-Vance MA. African Ancestry Individuals with Higher Educational Attainment Are Resilient to Alzheimer's Disease Measured by pTau181. J Alzheimers Dis 2024; 98:221-229. [PMID: 38393909 DOI: 10.3233/jad-231116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2024]
Abstract
Background Cognitive and functional abilities in individuals with Alzheimer's disease (AD) pathology (ADP) are highly variable. Factors contributing to this variability are not well understood. Previous research indicates that higher educational attainment (EA) correlates with reduced cognitive impairments among those with ADP. While cognitive and functional impairments are correlated, they are distinguishable in their manifestations. Objective To investigate whether levels of education are associated with functional impairments among those with ADP. Methods This research involved 410 African American (AA) individuals (Institutional Review Boards 20070307, 01/27/2023) to ascertain whether EA correlates with functional resilience and if this effect varies between APOE ɛ4 carriers and non-carriers. Utilizing EA as a cognitive reserve proxy, CDR-FUNC as a functional difficulties measure, and blood pTau181 as an ADP proxy, the non-parametric Mann-Whitney U test assessed the relationship between EA and CDR-FUNC in individuals with advanced pTau181 levels. Results The results showed that EA correlated with functional difficulties in AA individuals with high levels of pTau181, such that individuals with high EA are more likely to have better functional ability compared to those with lower EA (W = 730.5, p = 0.0007). Additionally, we found that the effect of high EA on functional resilience was stronger in ɛ4 non-carriers compared to ɛ4 carriers (W = 555.5, p = 0.022). Conclusion This study extends the role of cognitive reserve and EA to functional performance showing that cognitive reserve influences the association between ADP burden and functional difficulties. Interestingly, this protective effect seems less pronounced in carriers of the strong genetic risk allele ɛ4.
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Affiliation(s)
- Farid Rajabli
- John P. Hussman Institute for Human Genomics, Miller School of Medicine, University of Miami, Miami, FL, USA
- Department of Human Genetics, Dr. John T. Macdonald Foundation, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Azizi A Seixas
- Department of Informatics and Health Data Science, Miller School of Medicine, University of Miami, Miami, FL, USA
- Department of Psychiatry and Behavioral Sciences, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Bilcag Akgun
- John P. Hussman Institute for Human Genomics, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Larry D Adams
- John P. Hussman Institute for Human Genomics, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Jovita Inciute
- John P. Hussman Institute for Human Genomics, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Kara L Hamilton
- John P. Hussman Institute for Human Genomics, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Patrice G Whithead
- John P. Hussman Institute for Human Genomics, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Ioanna Konidari
- John P. Hussman Institute for Human Genomics, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Tianjie Gu
- John P. Hussman Institute for Human Genomics, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Jamie Arvizu
- John P. Hussman Institute for Human Genomics, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Charles G Golightly
- John P. Hussman Institute for Human Genomics, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Takiyah D Starks
- Maya Angelou Center for Health Equity, Wake Forest University School of Medicine, Winston-Salem, NC, USA
| | - Renee Laux
- Department of Population and Quantitative Health Sciences, Cleveland Institute for Computational Biology, Case Western Reserve University, Cleveland, OH, USA, USA
| | - Goldie S Byrd
- Maya Angelou Center for Health Equity, Wake Forest University School of Medicine, Winston-Salem, NC, USA
| | - Jonathan L Haines
- Department of Population and Quantitative Health Sciences, Cleveland Institute for Computational Biology, Case Western Reserve University, Cleveland, OH, USA, USA
| | - Gary W Beecham
- John P. Hussman Institute for Human Genomics, Miller School of Medicine, University of Miami, Miami, FL, USA
- Department of Human Genetics, Dr. John T. Macdonald Foundation, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Anthony J Griswold
- John P. Hussman Institute for Human Genomics, Miller School of Medicine, University of Miami, Miami, FL, USA
- Department of Human Genetics, Dr. John T. Macdonald Foundation, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Jeffery M Vance
- John P. Hussman Institute for Human Genomics, Miller School of Medicine, University of Miami, Miami, FL, USA
- Department of Human Genetics, Dr. John T. Macdonald Foundation, Miller School of Medicine, University of Miami, Miami, FL, USA
- Department of Neurology, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Michael L Cuccaro
- John P. Hussman Institute for Human Genomics, Miller School of Medicine, University of Miami, Miami, FL, USA
- Department of Human Genetics, Dr. John T. Macdonald Foundation, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Margaret A Pericak-Vance
- John P. Hussman Institute for Human Genomics, Miller School of Medicine, University of Miami, Miami, FL, USA
- Department of Human Genetics, Dr. John T. Macdonald Foundation, Miller School of Medicine, University of Miami, Miami, FL, USA
- Department of Neurology, Miller School of Medicine, University of Miami, Miami, FL, USA
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Celis K, Zaman A, Adams LD, Gardner O, Farid R, Starks TD, Lacroix FC, Hamilton-Nelson K, Mena P, Tejada S, Laux R, Song YE, Caban-Holt A, Feliciano-Astacio B, Vance JM, Haines JL, Byrd GS, Beecham GW, Pericak-Vance MA, Cuccaro ML. Neuropsychiatric features in a multi-ethnic population with Alzheimer disease and mild cognitive impairment. Int J Geriatr Psychiatry 2023; 38:e5992. [PMID: 37655494 PMCID: PMC10518518 DOI: 10.1002/gps.5992] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Accepted: 08/12/2023] [Indexed: 09/02/2023]
Abstract
BACKGROUND Alzheimer disease (AD) is more prevalent in African American (AA) and Hispanic White (HIW) compared to Non-Hispanic White (NHW) individuals. Similarly, neuropsychiatric symptoms (NPS) vary by population in AD. This is likely the result of both sociocultural and genetic ancestral differences. However, the impact of these NPS on AD in different groups is not well understood. METHODS Self-declared AA, HIW, and NHW individuals were ascertained as part of ongoing AD genetics studies. Participants who scored higher than 0.5 on the Clinical Dementia Rating (CDR) Scale (CDR) were included. Group similarities and differences on Neuropsychiatric Inventory Questionnaire (NPI-Q) outcomes (NPI-Q total score, NPI-Q items) were evaluated using univariate ANOVAs and post hoc comparisons after controlling for sex and CDR stage. RESULTS Our sample consisted of 498 participants (26% AA; 30% HIW; 44% NHW). Overall, NPI-Q total scores differed significantly between our groups, with HIW having the highest NPI-Q total scores, and by AD stage as measured by CDR. We found no significant difference in NPI-Q total score by sex. There were six NPI-Q items with comparable prevalence in all groups and six items that significantly differed between the groups (Anxiety, Apathy, Depression, Disinhibition, Elation, and Irritability). Further, within the HIW group, differences were found between Puerto Rican and Cuban American Hispanics across several NPI-Q items. Finally, Six NPI-Q items were more prevalent in the later stages of AD including Agitation, Appetite, Hallucinations, Irritability, Motor Disturbance, and Nighttime Behavior. CONCLUSIONS We identified differences in NPS among HIW, AA, and NHW individuals. Most striking was the high burden of NPS in HIW, particularly for mood and anxiety symptoms. We suggest that NPS differences may represent the impact of sociocultural influences on symptom presentation as well as potential genetic factors rooted in ancestral background. Given the complex relationship between AD and NPS it is crucial to discern the presence of NPS to ensure appropriate interventions.
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Affiliation(s)
- Katrina Celis
- John P. Hussman Institute for Human Genomics, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Andrew Zaman
- John P. Hussman Institute for Human Genomics, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Larry Deon Adams
- John P. Hussman Institute for Human Genomics, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Olivia Gardner
- John P. Hussman Institute for Human Genomics, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Rajabli Farid
- John P. Hussman Institute for Human Genomics, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Takiyah D Starks
- Maya Angelou Center for Health Equity, Wake Forest University, Winston-Salem, North Carolina, USA
| | - Faina C Lacroix
- John P. Hussman Institute for Human Genomics, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Kara Hamilton-Nelson
- John P. Hussman Institute for Human Genomics, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Pedro Mena
- John P. Hussman Institute for Human Genomics, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Sergio Tejada
- John P. Hussman Institute for Human Genomics, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Renee Laux
- Department of Population & Quantitative Health Sciences, Case Western Reserve University, Cleveland, Ohio, USA
| | - Yeunjoo E Song
- Department of Population & Quantitative Health Sciences, Case Western Reserve University, Cleveland, Ohio, USA
| | - Allison Caban-Holt
- Maya Angelou Center for Health Equity, Wake Forest University, Winston-Salem, North Carolina, USA
| | | | - Jeffery M Vance
- John P. Hussman Institute for Human Genomics, University of Miami Miller School of Medicine, Miami, Florida, USA
- Dr. John T Macdonald Foundation Department of Human Genetics, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Jonathan L Haines
- Department of Population & Quantitative Health Sciences, Case Western Reserve University, Cleveland, Ohio, USA
- Cleveland Institute for Computational Biology, Cleveland, Ohio, USA
| | - Goldie S Byrd
- Maya Angelou Center for Health Equity, Wake Forest University, Winston-Salem, North Carolina, USA
| | - Gary W Beecham
- John P. Hussman Institute for Human Genomics, University of Miami Miller School of Medicine, Miami, Florida, USA
- Dr. John T Macdonald Foundation Department of Human Genetics, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Margaret A Pericak-Vance
- John P. Hussman Institute for Human Genomics, University of Miami Miller School of Medicine, Miami, Florida, USA
- Dr. John T Macdonald Foundation Department of Human Genetics, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Michael L Cuccaro
- John P. Hussman Institute for Human Genomics, University of Miami Miller School of Medicine, Miami, Florida, USA
- Dr. John T Macdonald Foundation Department of Human Genetics, University of Miami Miller School of Medicine, Miami, Florida, USA
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Rajabli F, Seixas AA, Akgun B, Adams LD, Inciute J, Starks T, Laux R, Byrd GS, Haines JL, Beecham GW, Vance JM, Cuccaro ML, Pericak-Vance MA. African ancestry APOE e4 non-carriers with higher educational attainment are resilient to Alzheimer disease pathology-specific blood biomarker pTau181. medRxiv 2023:2023.07.06.23292263. [PMID: 37461667 PMCID: PMC10350130 DOI: 10.1101/2023.07.06.23292263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/05/2024]
Abstract
Cognitive and functional abilities in individuals with Alzheimer disease (AD) pathology (ADP) show greater than expected variability. While most individuals show substantial impairments in these abilities, a considerable number show little or no impairments. Factors contributing to this variability are not well understood. For instance, multiple studies have shown that higher levels of education are associated with reduced cognitive impairments among those with ADP. However, it remains unclear whether higher levels of education are associated with functional impairments among those with ADP. We studied 410 AA individuals with advanced levels of pTau181 (a biomarker for ADP; individuals as those having log 10 (pTau181) level greater than one standard deviation above the mean) to determine whether EA (categorized as low EA for individuals with ≤ 8 years of education and high EA for those with >8 years) promotes functional resilience and whether this effect varies between APOE ε4 carriers and non-carriers. We used the four non-memory components of the Clinical Dementia Rating (CDR) to create a composite score (CDR-FUNC) to evaluate functional difficulties (scored from 0=no impairment to 12=severe). We employed the non-parametric Mann-Whitney U test to assess the relationship between EA and CDR-FUNC in advanced levels of pTau181 individuals. The results showed that EA promotes resilience to functional problems in AA individuals with advanced levels of pTau181, such that individuals with high EA are more likely to have better functional ability compared to those with lower EA (W=730.5, p=0.0007). Additionally, we found that the effect of high EA on functional resilience was stronger in ε4 non-carriers compared to ε4 carriers (W=555.5, p=0.022). This study extends the role of cognitive reserve and EA to functional performance showing that cognitive reserve influences the association between ADP burden and functional difficulties. Interestingly, this protective effect seems less pronounced in carriers of the strong genetic risk allele ε4. The results highlight the intricate interplay of genetic and non-genetic factors in AD progression, suggesting a need for more personalized strategies to manage functional decline in AD.
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Zaman A, Caywood L, Prough M, Clouse J, Harrington S, Adams L, Fuzzell D, Fuzzell S, Laux R, Hochstetler SD, Ogrocki P, Lerner A, Vance JM, Haines JL, Scott WK, Pericak-Vance MA, Cuccaro ML. Psychometric Approaches to Defining Cognitive Phenotypes in the Old Order Amish. Int J Geriatr Psychiatry 2023; 38:e5903. [PMID: 36929524 DOI: 10.1002/gps.5903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Accepted: 03/11/2023] [Indexed: 03/18/2023]
Abstract
OBJECTIVE Memory and cognitive problems are central to the diagnosis of Alzheimer's disease (AD). Psychometric approaches to defining phenotypes can aid in identify genetic variants associated with AD. However, these approaches have mostly been limited to affected individuals. Defining phenotypes of both affected and unaffected individuals may help identify genetic variants associated with both AD and healthy aging. This study compares psychometric methods for developing cognitive phenotypes that are more granular than clinical classifications. METHODS 682 older Old Order Amish individuals were included in the analysis. Adjusted Z-scores of cognitive tests were used to create four models including 1) global threshold scores or 2) memory threshold scores, and 3) global clusters and 4) memory clusters. An ordinal regression examined the coherence of the models with clinical classifications [cognitively impaired (CI), mildly impaired (MI), cognitively unimpaired (CU)], APOE-e4, sex, and age. An ANOVA examined the best model phenotypes for differences in clinical classification, APOE-e4, domain Z-scores (memory, language, executive function, and processing speed), sex, and age. RESULTS The memory cluster identified four phenotypes and had the best fit (χ2 = 491.66). Individuals in the worse performing phenotypes were more likely to be classified as CI or MI and to have APOE-e4. Additionally, all four phenotypes performed significantly differently from one another on the domains of memory, language, and executive functioning. CONCLUSIONS Memory cluster stratification identified the cognitive phenotypes that best aligned with clinical classifications, APOE-e4, and cognitive performance We predict these phenotypes will prove useful in searching for protective genetic variants. This article is protected by copyright. All rights reserved.
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Affiliation(s)
- Andrew Zaman
- John P. Hussman Institute for Human Genomics, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Laura Caywood
- John P. Hussman Institute for Human Genomics, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Michael Prough
- John P. Hussman Institute for Human Genomics, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Jason Clouse
- John P. Hussman Institute for Human Genomics, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Sharlene Harrington
- John P. Hussman Institute for Human Genomics, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Larry Adams
- John P. Hussman Institute for Human Genomics, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Denise Fuzzell
- Department of Population and Quantitative Health Sciences, Case Western Reserve University, Cleveland, OH, USA
| | - Sarada Fuzzell
- Department of Population and Quantitative Health Sciences, Case Western Reserve University, Cleveland, OH, USA
| | - Renee Laux
- Department of Population and Quantitative Health Sciences, Case Western Reserve University, Cleveland, OH, USA
| | - Sherri D Hochstetler
- Department of Population and Quantitative Health Sciences, Case Western Reserve University, Cleveland, OH, USA
| | - Paula Ogrocki
- Department of Neurology, Case Western Reserve University, Cleveland, OH, USA
| | - Alan Lerner
- Department of Neurology, Case Western Reserve University, Cleveland, OH, USA
| | - Jeffery M Vance
- John P. Hussman Institute for Human Genomics, University of Miami Miller School of Medicine, Miami, FL, USA.,Dr. John T. Macdonald Foundation Department of Human Genetics, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Jonathan L Haines
- Department of Population and Quantitative Health Sciences, Case Western Reserve University, Cleveland, OH, USA.,Cleveland Institute for Computational Biology, Case Western Reserve University, Cleveland, OH, USA
| | - William K Scott
- John P. Hussman Institute for Human Genomics, University of Miami Miller School of Medicine, Miami, FL, USA.,Dr. John T. Macdonald Foundation Department of Human Genetics, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Margaret A Pericak-Vance
- John P. Hussman Institute for Human Genomics, University of Miami Miller School of Medicine, Miami, FL, USA.,Dr. John T. Macdonald Foundation Department of Human Genetics, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Michael L Cuccaro
- John P. Hussman Institute for Human Genomics, University of Miami Miller School of Medicine, Miami, FL, USA.,Dr. John T. Macdonald Foundation Department of Human Genetics, University of Miami Miller School of Medicine, Miami, FL, USA
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5
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Waksmunski AR, Miskimen K, Song YE, Grunin M, Laux R, Fuzzell D, Fuzzell S, Adams LD, Caywood L, Prough M, Stambolian D, Scott WK, Pericak-Vance MA, Haines JL. Consequences of a Rare Complement Factor H Variant for Age-Related Macular Degeneration in the Amish. Invest Ophthalmol Vis Sci 2022; 63:8. [PMID: 35930268 PMCID: PMC9363678 DOI: 10.1167/iovs.63.9.8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Purpose Genetic variants in the complement factor H gene (CFH) have been consistently implicated in age-related macular degeneration (AMD) risk. However, their functional effects are not fully characterized. We previously identified a rare, AMD-associated variant in CFH (P503A, rs570523689) in 19 Amish individuals, but its functional consequences were not investigated. Methods We performed genotyping for CFH P503A in 1326 Amish individuals to identify additional risk allele carriers. We examined differences for age at AMD diagnosis between carriers and noncarriers. In blood samples from risk allele carriers and noncarriers, we quantified (i) CFH RNA expression, (ii) CFH protein expression, and (iii) C-reactive protein (CRP) expression. Potential changes to the CFH protein structure were interrogated computationally with Phyre2 and Chimera software programs. Results We identified 39 additional carriers from Amish communities in Ohio and Indiana. On average, carriers were younger than noncarriers at AMD diagnosis, but this difference was not significant. CFH transcript and protein levels in blood samples from Amish carriers and noncarriers were also not significantly different. CRP levels were also comparable in plasma samples from carriers and noncarriers. Computational protein modeling showed slight changes in the CFH protein conformation that were predicted to alter interactions between the CFH 503 residue and other neighboring residues. Conclusions In total, we have identified 58 risk allele carriers for CFH P503A in the Ohio and Indiana Amish. Although we did not detect significant differences in age at AMD diagnosis or expression levels of CFH in blood samples from carriers and noncarriers, we observed modest structural changes to the CFH protein through in silico modeling. Based on our functional and computational observations, we hypothesize that CFH P503A may affect CFH binding or function rather than expression, which would require additional research to confirm.
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Affiliation(s)
- Andrea R Waksmunski
- Department of Genetics and Genome Sciences, Case Western Reserve University, Cleveland, Ohio, United States.,Cleveland Institute for Computational Biology, Case Western Reserve University, Cleveland, Ohio, United States.,Department of Population and Quantitative Health Sciences, Case Western Reserve University, Cleveland, Ohio, United States
| | - Kristy Miskimen
- Department of Population and Quantitative Health Sciences, Case Western Reserve University, Cleveland, Ohio, United States
| | - Yeunjoo E Song
- Department of Population and Quantitative Health Sciences, Case Western Reserve University, Cleveland, Ohio, United States
| | - Michelle Grunin
- Cleveland Institute for Computational Biology, Case Western Reserve University, Cleveland, Ohio, United States.,Department of Population and Quantitative Health Sciences, Case Western Reserve University, Cleveland, Ohio, United States
| | - Renee Laux
- Department of Population and Quantitative Health Sciences, Case Western Reserve University, Cleveland, Ohio, United States
| | - Denise Fuzzell
- Department of Population and Quantitative Health Sciences, Case Western Reserve University, Cleveland, Ohio, United States
| | - Sarada Fuzzell
- Department of Population and Quantitative Health Sciences, Case Western Reserve University, Cleveland, Ohio, United States
| | - Larry D Adams
- John P. Hussman Institute for Human Genomics, University of Miami Miller School of Medicine, Miami, Florida, United States
| | - Laura Caywood
- John P. Hussman Institute for Human Genomics, University of Miami Miller School of Medicine, Miami, Florida, United States
| | - Michael Prough
- John P. Hussman Institute for Human Genomics, University of Miami Miller School of Medicine, Miami, Florida, United States
| | - Dwight Stambolian
- Department of Ophthalmology, University of Pennsylvania, Philadelphia, Pennsylvania, United States
| | - William K Scott
- John P. Hussman Institute for Human Genomics, University of Miami Miller School of Medicine, Miami, Florida, United States
| | - Margaret A Pericak-Vance
- John P. Hussman Institute for Human Genomics, University of Miami Miller School of Medicine, Miami, Florida, United States
| | - Jonathan L Haines
- Department of Genetics and Genome Sciences, Case Western Reserve University, Cleveland, Ohio, United States.,Cleveland Institute for Computational Biology, Case Western Reserve University, Cleveland, Ohio, United States.,Department of Population and Quantitative Health Sciences, Case Western Reserve University, Cleveland, Ohio, United States
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6
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Ramos J, Chowdhury AR, Caywood LJ, Prough M, Denise Fuzzell M, Fuzzell S, Miskimen K, Whitehead PL, Adams LD, Laux R, Song Y, Ogrocki P, Lerner AJ, Vance JM, Haines JL, Scott WK, Pericak-Vance MA, Cuccaro ML. Lower Levels of Education Are Associated with Cognitive Impairment in the Old Order Amish. J Alzheimers Dis 2020; 79:451-458. [PMID: 33285633 DOI: 10.3233/jad-200909] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
BACKGROUND Lower education has been reported to be associated with dementia. However, many studies have been done in settings where 12 years of formal education is the standard. Formal schooling in the Old Order Amish communities (OOA) ends at 8th grade which, along with their genetic homogeneity, makes it an interesting population to study the effect of education on cognitive impairment. OBJECTIVE The objective of this study was to examine the association of education with cognitive function in individuals from the OOA. We hypothesized that small differences in educational attainment at lower levels of formal education were associated with risk for cognitive impairment. METHODS Data of 2,426 individuals from the OOA aged 54-99 were analyzed. The Modified Mini-Mental State Examination (3MS-R) was used to classify participants as CI or normal. Individuals were classified into three education categories: <8, 8, and >8 years of education. To measure the association of education with cognitive status, a logistic regression model was performed adding age and sex as covariates. RESULTS Our results showed that individuals who attained lowest levels of education (<8 and 8) had a higher probability of becoming cognitvely impaired compared with people attending >8 years (OR = 2.96 and 1.85). CONCLUSION Even within a setting of low levels of formal education, small differences in educational attainment can still be associated with the risk of cognitive impairment. Given the homogeneity of the OOA, these results are less likely to be biased by differences in socioeconomic backgrounds.
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Affiliation(s)
- Jairo Ramos
- John P. Hussman Institute for Human Genomics, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Aneesa R Chowdhury
- John P. Hussman Institute for Human Genomics, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Laura J Caywood
- John P. Hussman Institute for Human Genomics, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Michael Prough
- John P. Hussman Institute for Human Genomics, University of Miami Miller School of Medicine, Miami, FL, USA
| | - M Denise Fuzzell
- Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Sarada Fuzzell
- Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Kristy Miskimen
- Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Patrice L Whitehead
- John P. Hussman Institute for Human Genomics, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Larry D Adams
- John P. Hussman Institute for Human Genomics, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Renee Laux
- Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Yeunjoo Song
- Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Paula Ogrocki
- University Hospitals Cleveland Medical Center, Cleveland, OH, USA
| | - Alan J Lerner
- University Hospitals Cleveland Medical Center, Cleveland, OH, USA
| | - Jeffery M Vance
- John P. Hussman Institute for Human Genomics, University of Miami Miller School of Medicine, Miami, FL, USA.,The Dr. John T. Macdonald Foundation Department of Human Genetics, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Jonathan L Haines
- Case Western Reserve University School of Medicine, Cleveland, OH, USA.,Cleveland Institute for Computational Biology, Case Western Reserve University, Cleveland, OH, USA
| | - William K Scott
- John P. Hussman Institute for Human Genomics, University of Miami Miller School of Medicine, Miami, FL, USA.,The Dr. John T. Macdonald Foundation Department of Human Genetics, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Margaret A Pericak-Vance
- John P. Hussman Institute for Human Genomics, University of Miami Miller School of Medicine, Miami, FL, USA.,The Dr. John T. Macdonald Foundation Department of Human Genetics, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Michael L Cuccaro
- John P. Hussman Institute for Human Genomics, University of Miami Miller School of Medicine, Miami, FL, USA.,The Dr. John T. Macdonald Foundation Department of Human Genetics, University of Miami Miller School of Medicine, Miami, FL, USA
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7
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Ramos J, Caywood LJ, Prough M, Fuzzell MD, Fuzzell S, Miskimen K, Whitehead PL, Adams LD, Laux R, Song Y, Ogrocki P, Lerner AJ, Vance JM, Scott WK, Pericak-Vance MA, Cuccaro ML. P3-140: PROTECTIVE EFFECT OF EDUCATION ON COGNITIVE FUNCTION IN THE OLD ORDER AMISH. Alzheimers Dement 2019. [DOI: 10.1016/j.jalz.2019.06.3168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jairo Ramos
- John P. Hussman Institute for Human Genomics; University of Miami Miller School of Medicine; Miami FL USA
| | | | - Michael Prough
- John P. Hussman Institute for Human Genomics; University of Miami Miller School of Medicine; Miami FL USA
| | - M. Denise Fuzzell
- Case Western Reserve University School of Medicine; Cleveland OH USA
| | - Sarada Fuzzell
- Case Western Reserve University School of Medicine; Cleveland OH USA
| | - Kristy Miskimen
- Case Western Reserve University School of Medicine; Cleveland OH USA
| | | | - Larry D. Adams
- John P. Hussman Institute for Human Genomics; University of Miami Miller School of Medicine; Miami FL USA
| | - Renee Laux
- Case Western Reserve University School of Medicine; Cleveland OH USA
| | - Yeunjoo Song
- Case Western Reserve University School of Medicine; Cleveland OH USA
| | - Paula Ogrocki
- University Hospitals Cleveland Medical Center; Cleveland OH USA
| | - Alan J. Lerner
- Case Western Reserve University School of Medicine; Cleveland OH USA
| | - Jeffery M. Vance
- John P. Hussman Institute for Human Genomics; University of Miami Miller School of Medicine; Miami FL USA
| | - William K. Scott
- John P. Hussman Institute for Human Genomics; University of Miami Miller School of Medicine; Miami FL USA
| | - Margaret A. Pericak-Vance
- John P. Hussman Institute for Human Genomics; University of Miami Miller School of Medicine; Miami FL USA
- The Dr. John T. Macdonald Foundation Department of Human Genetics; University of Miami Miller School of Medicine; Miami FL USA
| | - Michael L. Cuccaro
- John P. Hussman Institute for Human Genomics; University of Miami Miller School of Medicine; Miami FL USA
- The Dr. John T. Macdonald Foundation Department of Human Genetics; University of Miami Miller School of Medicine; Miami FL USA
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8
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Main LR, Disher MC, Song Y, Laux R, Miskimen K, Cuccaro ML, Ogrocki P, Lerner AJ, Vance JM, Fuzzell MD, Fuzzell S, Sewell J, Caywood LJ, Prough M, Scott B, Pericak-Vance MA, Haines JL. P3-135: PROTECTIVE GENETIC VARIANTS IN THE MIDWESTERN AMISH. Alzheimers Dement 2019. [DOI: 10.1016/j.jalz.2019.06.3163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Leighanne R. Main
- Case Western Reserve University School of Medicine; Cleveland OH USA
| | | | - Yeunjoo Song
- Case Western Reserve University School of Medicine; Cleveland OH USA
| | - Renee Laux
- Case Western Reserve University School of Medicine; Cleveland OH USA
| | - Kristy Miskimen
- Case Western Reserve University School of Medicine; Cleveland OH USA
| | - Michael L. Cuccaro
- University of Miami; Miami FL USA
- John P. Hussman Institute for Human Genomics; University of Miami Miller School of Medicine; Miami FL USA
| | - Paula Ogrocki
- University Hospitals Cleveland Medical Center; Cleveland OH USA
| | - Alan J. Lerner
- Case Western Reserve University School of Medicine; Cleveland OH USA
- University Hospitals Cleveland Medical Center; Cleveland OH USA
| | - Jeffery M. Vance
- University of Miami; Miami FL USA
- John P. Hussman Institute for Human Genomics; University of Miami Miller School of Medicine; Miami FL USA
| | - M Denise Fuzzell
- Case Western Reserve University School of Medicine; Cleveland OH USA
| | - Sarada Fuzzell
- Case Western Reserve University School of Medicine; Cleveland OH USA
| | - Jane Sewell
- Case Western Reserve University School of Medicine; Cleveland OH USA
| | | | - Michael Prough
- John P. Hussman Institute for Human Genomics; University of Miami Miller School of Medicine; Miami FL USA
| | | | - Margaret A. Pericak-Vance
- John P. Hussman Institute for Human Genomics; University of Miami Miller School of Medicine; Miami FL USA
- The Dr. John T. Macdonald Foundation Department of Human Genetics; University of Miami Miller School of Medicine; Miami FL USA
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9
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Haines J, D'Aoust LN, Laux R, Fuzzell D, Caywood L, Reinhart‐Mercer L, Scott W, Pericak‐Vance M. P2‐032: THE GENETIC ARCHITECTURE OF ALZHEIMER DISEASE IN THE MID‐WESTERN U.S. AMISH. Alzheimers Dement 2014. [DOI: 10.1016/j.jalz.2014.05.705] [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: 10/24/2022]
Affiliation(s)
| | | | - Renee Laux
- Case Western Reserve UniversityClevelandOhioUnited States
| | - Denise Fuzzell
- Case Western Reserve UniversityClevelandOhioUnited States
| | - Laura Caywood
- Hussman Institute for Human GenomicsMiamiFloridaUnited States
| | | | - William Scott
- Hussman Institute for Human GenomicsMiamiFloridaUnited States
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10
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Hoffman JD, Cooke Bailey JN, D'Aoust L, Cade W, Ayala-Haedo J, Fuzzell D, Laux R, Adams LD, Reinhart-Mercer L, Caywood L, Whitehead-Gay P, Agarwal A, Wang G, Scott WK, Pericak-Vance MA, Haines JL. Rare complement factor H variant associated with age-related macular degeneration in the Amish. Invest Ophthalmol Vis Sci 2014; 55:4455-60. [PMID: 24906858 DOI: 10.1167/iovs.13-13684] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
PURPOSE Age-related macular degeneration is the leading cause of blindness among the adult population in the developed world. To further the understanding of this disease, we have studied the genetically isolated Amish population of Ohio and Indiana. METHODS Cumulative genetic risk scores were calculated using the 19 known allelic associations. Exome sequencing was performed in three members of a small Amish family with AMD who lacked the common risk alleles in complement factor H (CFH) and ARMS2/HTRA1. Follow-up genotyping and association analysis was performed in a cohort of 973 Amish individuals, including 95 with self-reported AMD. RESULTS The cumulative genetic risk score analysis generated a mean genetic risk score of 1.12 (95% confidence interval [CI]: 1.10, 1.13) in the Amish controls and 1.18 (95% CI: 1.13, 1.22) in the Amish cases. This mean difference in genetic risk scores is statistically significant (P = 0.0042). Exome sequencing identified a rare variant (P503A) in CFH. Association analysis in the remainder of the Amish sample revealed that the P503A variant is significantly associated with AMD (P = 9.27 × 10(-13)). Variant P503A was absent when evaluated in a cohort of 791 elderly non-Amish controls, and 1456 non-Amish cases. CONCLUSIONS Data from the cumulative genetic risk score analysis suggests that the variants reported by the AMDGene consortium account for a smaller genetic burden of disease in the Amish compared with the non-Amish Caucasian population. Using exome sequencing data, we identified a novel missense mutation that is shared among a densely affected nuclear Amish family and located in a gene that has been previously implicated in AMD risk.
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Affiliation(s)
- Joshua D Hoffman
- Center for Human Genetics Research, Vanderbilt University Medical Center, Nashville, Tennessee, United States
| | - Jessica N Cooke Bailey
- Department of Epidemiology and Biostatistics, Case Western Reserve University, Cleveland, Ohio, United States
| | - Laura D'Aoust
- Center for Human Genetics Research, Vanderbilt University Medical Center, Nashville, Tennessee, United States
| | - William Cade
- John P. Hussman Institute for Human Genomics, Miller School of Medicine, University of Miami, Miami, Florida, United States
| | - Juan Ayala-Haedo
- John P. Hussman Institute for Human Genomics, Miller School of Medicine, University of Miami, Miami, Florida, United States
| | - Denise Fuzzell
- Department of Epidemiology and Biostatistics, Case Western Reserve University, Cleveland, Ohio, United States
| | - Renee Laux
- Department of Epidemiology and Biostatistics, Case Western Reserve University, Cleveland, Ohio, United States
| | - Larry D Adams
- John P. Hussman Institute for Human Genomics, Miller School of Medicine, University of Miami, Miami, Florida, United States
| | - Lori Reinhart-Mercer
- John P. Hussman Institute for Human Genomics, Miller School of Medicine, University of Miami, Miami, Florida, United States
| | - Laura Caywood
- John P. Hussman Institute for Human Genomics, Miller School of Medicine, University of Miami, Miami, Florida, United States
| | - Patrice Whitehead-Gay
- John P. Hussman Institute for Human Genomics, Miller School of Medicine, University of Miami, Miami, Florida, United States
| | - Anita Agarwal
- Department of Ophthalmology and Visual Sciences, Vanderbilt University, Nashville, Tennessee, United States
| | - Gaofeng Wang
- John P. Hussman Institute for Human Genomics, Miller School of Medicine, University of Miami, Miami, Florida, United States
| | - William K Scott
- John P. Hussman Institute for Human Genomics, Miller School of Medicine, University of Miami, Miami, Florida, United States
| | - Margaret A Pericak-Vance
- John P. Hussman Institute for Human Genomics, Miller School of Medicine, University of Miami, Miami, Florida, United States
| | - Jonathan L Haines
- Center for Human Genetics Research, Vanderbilt University Medical Center, Nashville, Tennessee, United States Department of Epidemiology and Biostatistics, Case Western Reserve University, Cleveland, Ohio, United States
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11
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Edwards DRV, Gilbert JR, Hicks JE, Myers JL, Jiang L, Cummings AC, Guo S, Gallins PJ, Konidari I, Caywood L, Reinhart-Mercer L, Fuzzell D, Knebusch C, Laux R, Jackson CE, Pericak-Vance MA, Haines JL, Scott WK. Linkage and association of successful aging to the 6q25 region in large Amish kindreds. Age (Dordr) 2013; 35:1467-1477. [PMID: 22773346 PMCID: PMC3705095 DOI: 10.1007/s11357-012-9447-1] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2011] [Accepted: 06/11/2012] [Indexed: 06/01/2023]
Abstract
Successful aging (SA) is a multidimensional phenotype involving living to older age with high physical function, preserved cognition, and continued social engagement. Several domains underlying SA are heritable, and identifying health-promoting polymorphisms and their interactions with the environment could provide important information regarding the health of older adults. In the present study, we examined 263 cognitively intact Amish individuals age 80 and older (74 SA and 189 "normally aged") all of whom are part of a single 13-generation pedigree. A genome-wide association study of 630,309 autosomal single nucleotide polymorphisms (SNPs) was performed and analyzed for linkage using multipoint analyses and for association using the modified quasi-likelihood score test. There was evidence for linkage on 6q25-27 near the fragile site FRA6E region with a dominant model maximum multipoint heterogeneity LOD score = 3.2. The 1-LOD-down support interval for this linkage contained one SNP for which there was regionally significant evidence of association (rs205990, p = 2.36 × 10(-5)). This marker survived interval-wide Bonferroni correction for multiple testing and was located between the genes QKI and PDE10A. Other areas of chromosome 6q25-q27 (including the FRA6E region) contained several SNPs associated with SA (minimum p = 2.89 × 10(-6)). These findings suggest potentially novel genes in the 6q25-q27 region linked and associated with SA in the Amish; however, these findings should be verified in an independent replication cohort.
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Affiliation(s)
- Digna R. Velez Edwards
- />Dr. John T. Macdonald Foundation Department of Human Genetics and John P. Hussman Institute of Human Genomics, Miller School of Medicine, University of Miami, 1501 NW 10th Avenue, Room 414, Miami, FL 33136 USA
- />Center for Human Genetics Research, Vanderbilt University Epidemiology Center, Institute of Medicine and Public Health, Department of Obstetrics and Gynecology, Vanderbilt University, Nashville, TN USA
| | - John R. Gilbert
- />Dr. John T. Macdonald Foundation Department of Human Genetics and John P. Hussman Institute of Human Genomics, Miller School of Medicine, University of Miami, 1501 NW 10th Avenue, Room 414, Miami, FL 33136 USA
| | - James E. Hicks
- />Dr. John T. Macdonald Foundation Department of Human Genetics and John P. Hussman Institute of Human Genomics, Miller School of Medicine, University of Miami, 1501 NW 10th Avenue, Room 414, Miami, FL 33136 USA
| | - Jamie L. Myers
- />Dr. John T. Macdonald Foundation Department of Human Genetics and John P. Hussman Institute of Human Genomics, Miller School of Medicine, University of Miami, 1501 NW 10th Avenue, Room 414, Miami, FL 33136 USA
| | - Lan Jiang
- />Center for Human Genetics Research, Vanderbilt University, Nashville, TN USA
| | - Anna C. Cummings
- />Center for Human Genetics Research, Vanderbilt University, Nashville, TN USA
| | - Shengru Guo
- />Dr. John T. Macdonald Foundation Department of Human Genetics and John P. Hussman Institute of Human Genomics, Miller School of Medicine, University of Miami, 1501 NW 10th Avenue, Room 414, Miami, FL 33136 USA
| | - Paul J. Gallins
- />Dr. John T. Macdonald Foundation Department of Human Genetics and John P. Hussman Institute of Human Genomics, Miller School of Medicine, University of Miami, 1501 NW 10th Avenue, Room 414, Miami, FL 33136 USA
| | - Ioanna Konidari
- />Dr. John T. Macdonald Foundation Department of Human Genetics and John P. Hussman Institute of Human Genomics, Miller School of Medicine, University of Miami, 1501 NW 10th Avenue, Room 414, Miami, FL 33136 USA
| | - Laura Caywood
- />Dr. John T. Macdonald Foundation Department of Human Genetics and John P. Hussman Institute of Human Genomics, Miller School of Medicine, University of Miami, 1501 NW 10th Avenue, Room 414, Miami, FL 33136 USA
| | - Lori Reinhart-Mercer
- />Dr. John T. Macdonald Foundation Department of Human Genetics and John P. Hussman Institute of Human Genomics, Miller School of Medicine, University of Miami, 1501 NW 10th Avenue, Room 414, Miami, FL 33136 USA
| | - Denise Fuzzell
- />Center for Human Genetics Research, Vanderbilt University, Nashville, TN USA
| | - Claire Knebusch
- />Center for Human Genetics Research, Vanderbilt University, Nashville, TN USA
| | - Renee Laux
- />Center for Human Genetics Research, Vanderbilt University, Nashville, TN USA
| | | | - Margaret A. Pericak-Vance
- />Dr. John T. Macdonald Foundation Department of Human Genetics and John P. Hussman Institute of Human Genomics, Miller School of Medicine, University of Miami, 1501 NW 10th Avenue, Room 414, Miami, FL 33136 USA
| | - Jonathan L. Haines
- />Center for Human Genetics Research, Vanderbilt University, Nashville, TN USA
| | - William K. Scott
- />Dr. John T. Macdonald Foundation Department of Human Genetics and John P. Hussman Institute of Human Genomics, Miller School of Medicine, University of Miami, 1501 NW 10th Avenue, Room 414, Miami, FL 33136 USA
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12
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D'Aoust L, Cummings A, Jiang L, Laux R, Fuzzell D, Caywood L, Reinhart‐Mercer L, Scott W, Pericak‐Vance M, Haines J. P1–064: Identification of variants that confer susceptibility to Alzheimer's disease in the Amish through exome sequencing. Alzheimers Dement 2013. [DOI: 10.1016/j.jalz.2013.05.285] [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: 10/26/2022]
Affiliation(s)
- Laura D'Aoust
- Vanderbilt University Nashville Tennessee United States
| | - Anna Cummings
- Center for Human Genetics Research Nashville Tennessee United States
| | - Lan Jiang
- Vanderbilt University Nashville Tennessee United States
| | - Renee Laux
- Center for Human Genetics Research Nashville Tennessee United States
| | - Denise Fuzzell
- Center for Human Genetics Research Nashville Tennessee United States
| | - Laura Caywood
- Hussman Institute for Human Genomics Miami Florida United States
| | | | - William Scott
- Hussman Institute for Human Genomics Miami Florida United States
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13
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Davis MF, Cummings AC, D'Aoust LN, Jiang L, Velez Edwards DR, Laux R, Reinhart-Mercer L, Fuzzell D, Scott WK, Pericak-Vance MA, Lee SL, Haines JL. Parkinson disease loci in the mid-western Amish. Hum Genet 2013; 132:1213-21. [PMID: 23793441 DOI: 10.1007/s00439-013-1316-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2012] [Accepted: 05/16/2013] [Indexed: 11/26/2022]
Abstract
Previous evidence has shown that Parkinson disease (PD) has a heritable component, but only a small proportion of the total genetic contribution to PD has been identified. Genetic heterogeneity complicates the verification of proposed PD genes and the identification of new PD susceptibility genes. Our approach to overcome the problem of heterogeneity is to study a population isolate, the mid-western Amish communities of Indiana and Ohio. We performed genome-wide association and linkage analyses on 798 individuals (31 with PD), who are part of a 4,998 member pedigree. Through these analyses, we identified a region on chromosome 5q31.3 that shows evidence of association (p value < 1 × 10(-4)) and linkage (multipoint HLOD = 3.77). We also found further evidence of linkage on chromosomes 6 and 10 (multipoint HLOD 4.02 and 4.35 respectively). These data suggest that locus heterogeneity, even within the Amish, may be more extensive than previously appreciated.
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Affiliation(s)
- M F Davis
- Center for Human Genetics Research, Vanderbilt University Medical Center, Nashville, TN, USA
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14
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Laux R, Wirtz S, Huggett S, Ilchmann C. [Relevance of parents as source for contamination of neonates with multiresistant Gram-negative pathogens (MRGN)]. Z Geburtshilfe Neonatol 2013; 217:61-4. [PMID: 23625767 DOI: 10.1055/s-0033-1341452] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
BACKGROUND There is an increase in nosocomial contamination and infection with multi-resistant bacteria among NICU patients. In 2011 we had to deal with an outbreak from multi-resistant Klebsiella pneumoniae in our NICU. Analysing the situation, we found 3 different clonal tribes. We presume that there are different sources for the contamination with multiresistant Gram-negative pathogens (MRGN) and we suspect that parents of NICU children may be of some importance. We studied in a one-year setting whether the incidence of nosocomial contaminations and infections may be prevented in a setting of barrier nursing and surveillance of the NICU patients and their parents. Our study was prospective and justified by a vote of support from the ethics committee of the 'Hamburger Ärztekammer' as well as additional funding from the Asklepios-Hamburg Pro-Research for the laboratory expenses. MATERIAL AND METHODS In a one-year study we undertook a programme of barrier nursing for all children admitted to our NICU with bacteriological surveillance on their entry into the NICU for children and their parents with anal and pharyngeal-nasal swabs. As long as there were no results, barrier-nursing for the children, their parents and staff was maintained. Where negative results were found, barrier-nursing was interrupted and children were nursed under normal hygienic conditions. Surveillance cultures from the children were taken once a week until being released. In cases of detection of MRGN bacteria, barrier-nursing was implemented together with room isolation. RESULTS We detected 23 families carrying MRGN bacteria pre-existent before hospitalisation. In cases of MRGN findings, barrier-nursing and room isolation were maintained. Under these circumstances, there were 6 cases of contamination of NICU children, 4 after vaginal delivery and secondary admittance in the NICU. The circumstances for the 2 others are discussed. CONCLUSION Parents are an important source for MRGN bacteria in the NICU. The early detection of those carriers is important for the avoidance of outbreaks in an NICU. In most cases, contamination and infection can be prevented.
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Affiliation(s)
- R Laux
- Neonatologie, Asklepios Klinik Barmbek, Hamburg.
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15
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Hellmeyer L, Herz K, Maslovar S, Liedke B, Laux R, Hackelöer BJ. [Megacystis-microcolon intestinal hypoperistalsis syndrome (MMIHS) as a rare differential diagnosis of foetal megacystis on ultrasonography]. Z Geburtshilfe Neonatol 2013; 217:35-7. [PMID: 23440659 DOI: 10.1055/s-0032-1333255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
INTRODUCTION Foetal megacystis (incidence 1:1 500) occurring in the first trimester may already be a sign of congenital malformation. Often, urethral valves are causally responsible in male foetuses far more frequently than urethral atresia. As a further differential diagnosis, the "prune-belly syndrome" needs to be distinguished. Far more difficult to classify prenatally is the rare MMIHS which, in contrast to the diagnosis of urethral valves, is associated with an unfavourable prognosis. CASE REPORT This is a report on a 28-year-old IG/0P, whose foetus of 26+4 gestational weeks was found on ultrasonography for the first time to have a megacystis of 48 mm diameter and bilateral hydronephrosis. The female foetus was surrounded by a normal amount of amniotic fluid which, during the further course of the pregnancy, developed into polyhydramnios. The serial puncture of the urinary bladder showed a normal karyotype and no impairment of the renal concentrating capacity or of protein loss. By reason of an immense enlargement of the abdomen due to the 100 mm large urinary bladder, a Caesarean section was conducted at 36+0 gestational weeks. A catheter could be inserted into the urinary bladder postpartum easily. However, nourishment was not possible and after radiological examination, MMIHS was diagnosed. CONCLUSION In the case of a foetal megacystis detected by ultrasonography, especially associated with polyhydramnios and female gender, the rare MMIHS, which is infaust, should be taken into consideration.
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Affiliation(s)
- L Hellmeyer
- Klinik für Gyn. u. Geburtsmedizin, Vivantes Klinikum im Friedrichshain, Berlin.
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16
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Cummings AC, Jiang L, Velez Edwards DR, McCauley JL, Laux R, McFarland LL, Fuzzell D, Knebusch C, Caywood L, Reinhart-Mercer L, Nations L, Gilbert JR, Konidari I, Tramontana M, Cuccaro ML, Scott WK, Pericak-Vance MA, Haines JL. Genome-wide association and linkage study in the Amish detects a novel candidate late-onset Alzheimer disease gene. Ann Hum Genet 2012; 76:342-51. [PMID: 22881374 DOI: 10.1111/j.1469-1809.2012.00721.x] [Citation(s) in RCA: 31] [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: 11/28/2022]
Abstract
To identify novel late-onset Alzheimer disease (LOAD) risk genes, we have analysed Amish populations of Ohio and Indiana. We performed genome-wide SNP linkage and association studies on 798 individuals (109 with LOAD). We tested association using the Modified Quasi-Likelihood Score test and also performed two-point and multipoint linkage analyses. We found that LOAD was significantly associated with APOE (P= 9.0 × 10-6) in all our ascertainment regions except for the Adams County, Indiana, community (P= 0.55). Genome-wide, the most strongly associated SNP was rs12361953 (P= 7.92 × 10-7). A very strong, genome-wide significant multipoint peak [recessive heterogeneity multipoint LOD (HLOD) = 6.14, dominant HLOD = 6.05] was detected on 2p12. Three additional loci with multipoint HLOD scores >3 were detected on 3q26, 9q31 and 18p11. Converging linkage and association results, the most significantly associated SNP under the 2p12 peak was at rs2974151 (P= 1.29 × 10-4). This SNP is located in CTNNA2, which encodes catenin alpha 2, a neuronal-specific catenin known to have function in the developing brain. These results identify CTNNA2 as a novel candidate LOAD gene, and implicate three other regions of the genome as novel LOAD loci. These results underscore the utility of using family-based linkage and association analyses in isolated populations to identify novel loci for traits with complex genetic architecture.
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Affiliation(s)
- Anna C Cummings
- Center for Human Genetics Research, Vanderbilt University Medical Center, Nashville, TN, USA
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17
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Cummings A, Shaffer C, Jiang L, Laux R, Fuzzell D, Knebusch C, Reinhart‐Mercer L, Caywood L, Jackson C, Scott W, Pericak‐Vance M, Haines J. P4‐088: Sequence analysis of CTNNA2 and LRRTM1 for late‐onset Alzheimer's disease in the Amish. Alzheimers Dement 2012. [DOI: 10.1016/j.jalz.2012.05.1790] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
- Anna Cummings
- Center for Human Genetics ResearchNashvilleTennesseeUnited States
| | | | - Lan Jiang
- Center for Human Genetics ResearchNashvilleTennesseeUnited States
| | - Renee Laux
- Center for Human Genetics ResearchNashvilleTennesseeUnited States
| | - Denise Fuzzell
- Center for Human Genetics ResearchNashvilleTennesseeUnited States
| | - Clare Knebusch
- Center for Human Genetics ResearchNashvilleTennesseeUnited States
| | | | - Laura Caywood
- Hussman Institute for Human GenomicsMiamiFloridaUnited States
| | | | - William Scott
- Hussman Institute for Human GenomicsMiamiFloridaUnited States
| | | | - Jonathan Haines
- Center for Human Genetics ResearchNashvilleTennesseeUnited States
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18
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Fischer T, Auer S, Laux R, Hornung R. Massives Polyhydramnion–was steckt dahinter? Z Geburtshilfe Neonatol 2011. [DOI: 10.1055/s-0031-1293319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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19
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Cummings A, Haines J, Pericak‐Vance M, Laux R, Jiang L, Edwards DV, McFarland L, Caywood L, Reinhart‐Mercer L, Fuzzell D, Knebusch C, Jackson C, McCauley J, Scott W. O1‐01‐01: Genome‐wide study for Alzheimer's disease in the Amish. Alzheimers Dement 2011. [DOI: 10.1016/j.jalz.2011.05.225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
| | | | | | | | - Lan Jiang
- Vanderbilt UniversityNashvilleTennessee
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20
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Cummings A, Jiang L, Edwards DV, Laux R, McFarland L, Gallins P, Caywood L, Creason M, Fuzzell D, Knebusch C, Tramontana M, Slifer M, Jackson C, Scott W, Pericak-Vance M, McCauley J, Haines J. O1‐03‐04: Genome‐wide linkage study in the Amish shows evidence for a chromosome 3 locus in late‐onset Alzheimer's disease. Alzheimers Dement 2010. [DOI: 10.1016/j.jalz.2010.05.220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- A.C. Cummings
- Center for Human Genetics Research Vanderbilt University Medical CenterNashville TN USA
| | - L. Jiang
- Center for Human Genetics Research Vanderbilt University Medical CenterNashville TN USA
| | - D. Velez Edwards
- Hussman Institute for Human Genomics University of Miami Miller School of MedicineMiami FL USA
| | - R. Laux
- Center for Human Genetics Research Vanderbilt University Medical CenterNashville TN USA
| | - L.L. McFarland
- Center for Human Genetics Research Vanderbilt University Medical CenterNashville TN USA
| | - P.J. Gallins
- Hussman Institute for Human Genomics University of Miami Miller School of MedicineMiami FL USA
| | - L. Caywood
- Hussman Institute for Human Genomics University of Miami Miller School of MedicineMiami FL USA
| | - M. Creason
- Hussman Institute for Human Genomics University of Miami Miller School of MedicineMiami FL USA
| | - D. Fuzzell
- Hussman Institute for Human Genomics University of Miami Miller School of MedicineMiami FL USA
| | - C. Knebusch
- Hussman Institute for Human Genomics University of Miami Miller School of MedicineMiami FL USA
| | - M.G. Tramontana
- Center for Human Genetics Research Vanderbilt University Medical CenterNashville TN USA
| | - M.A. Slifer
- Hussman Institute for Human Genomics University of Miami Miller School of MedicineMiami FL USA
| | | | - W.K. Scott
- Hussman Institute for Human Genomics University of Miami Miller School of MedicineMiami FL USA
| | - M.A. Pericak-Vance
- Hussman Institute for Human Genomics University of Miami Miller School of MedicineMiami FL USA
| | - J.L. McCauley
- Hussman Institute for Human Genomics University of Miami Miller School of MedicineMiami FL USA
| | - J.L. Haines
- Center for Human Genetics Research Vanderbilt University Medical CenterNashville TN USA
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Cummings A, Jiang L, Edwards DV, Laux R, McFarland L, Gallins P, Caywood L, Creason M, Fuzzell D, Knebusch C, Tramontana M, Slifer M, Jackson C, Scott W, Pericak-Vance M, McCauley J, Haines J. P1‐100: Genome‐wide association study for late‐onset Alzheimer's disease in the Mid‐Western U.S. Amish. Alzheimers Dement 2010. [DOI: 10.1016/j.jalz.2010.05.648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- A.C. Cummings
- Center for Human Genetics Research, Vanderbilt University Medical CenterNashville TN USA
| | - L. Jiang
- Center for Human Genetics Research, Vanderbilt University Medical CenterNashville TN USA
| | - D. Velez Edwards
- Hussman Institute for Human Genomics, University of Miami, Miller School of MedicineMiami FL USA
| | - R. Laux
- Center for Human Genetics Research, Vanderbilt University Medical CenterNashville TN USA
| | - L.L. McFarland
- Center for Human Genetics Research, Vanderbilt University Medical CenterNashville TN USA
| | - P.J. Gallins
- Hussman Institute for Human Genomics, University of Miami, Miller School of MedicineMiami FL USA
| | - L. Caywood
- Hussman Institute for Human Genomics, University of Miami, Miller School of MedicineMiami FL USA
| | - M. Creason
- Hussman Institute for Human Genomics, University of Miami, Miller School of MedicineMiami FL USA
| | - D. Fuzzell
- Hussman Institute for Human Genomics, University of Miami, Miller School of MedicineMiami FL USA
| | - C. Knebusch
- Hussman Institute for Human Genomics, University of Miami, Miller School of MedicineMiami FL USA
| | - M.G. Tramontana
- Center for Human Genetics Research, Vanderbilt University Medical CenterNashville TN USA
| | - M.A. Slifer
- Hussman Institute for Human Genomics, University of Miami, Miller School of MedicineMiami FL USA
| | | | - W.K. Scott
- Hussman Institute for Human Genomics, University of Miami, Miller School of MedicineMiami FL USA
| | - M.A. Pericak-Vance
- Hussman Institute for Human Genomics, University of Miami, Miller School of MedicineMiami FL USA
| | - J.L. McCauley
- Hussman Institute for Human Genomics, University of Miami, Miller School of MedicineMiami FL USA
| | - J.L. Haines
- Center for Human Genetics Research, Vanderbilt University Medical CenterNashville TN USA
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Meyer R, Laux R, Boch G, Hinds M, Bayly R, Shapiro JA. Broad-host-range IncP-4 plasmid R1162: effects of deletions and insertions on plasmid maintenance and host range. J Bacteriol 1982; 152:140-50. [PMID: 6288654 PMCID: PMC221385 DOI: 10.1128/jb.152.1.140-150.1982] [Citation(s) in RCA: 39] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
R1162 is an 8.7-kilobase (kb) broad-host-range replicon encoding resistance to streptomycin and sulfa drugs. In vitro deletion of 1.8-kb DNA between coordinates 3.0 and 5.3 kb did not affect plasmid maintenance, but a Tn1 insertion at coordinate 6.3 kb led to a recessive defect in plasmid maintenance. The only cis-acting region necessary for plasmid replication appears to lie between the Tn1 insertion at coordinate 6.3 kb and a second Tn1 insertion at coordinate 6.5 kb. All R1162 sequences between position 6.5 kb and the EcoRI site at coordinate 8.7/0 kb were dispensible for replication in Escherichia coli and Pseudomonas putida. Plasmids carrying insertions in a variety of restriction sites in an R1162::Tn1 derivative were unstable in P. putida but stable in E. coli. Tn5 insertions in R1162 showed a hot spot at coordinate 7.5 kb. A Tn5 insertion at coordinate 8.2 kb appeared to mark the 3' end of the streptomycin phosphotransferase coding sequence. All R1162::Tn5 derivatives showed specific instability in Pseudomonas strains but not in E. coli. The instability could be relieved by internal deletions of Tn5 sequences. In the haloaromatic-degrading Pseudomonas sp. strain B13, introduction of an unstable R1162::Tn5 plasmid led to loss of ability to utilize m-chlorobenzoate as a growth substrate. Our results showed that alteration of plasmid sequence organization in nonessential regions can result in restriction of plasmid host range.
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Shapiro JA, Carbit A, Benson S, Caruso M, Laux R, Meyer R, Banuett F. Perspectives for the genetic engineering of hydrocarbon oxidizing bacteria. Basic Life Sci 1982; 19:101-2. [PMID: 6279080 DOI: 10.1007/978-1-4684-4142-0_11] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Shapiro JA, Charbit A, Benson S, Caruso M, Laux R, Meyer R, Banuett F. Perspectives for genetic engineering of hydrocarbon oxidizing bacteria. Basic Life Sci 1981; 18:243-72. [PMID: 6944066 DOI: 10.1007/978-1-4684-3980-9_15] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Lapeyrie M, Picard JJ, Pous JG, Bruel S, Laux R. [Clinical use of a new heterologous bone graft (Kiel's graft). Apropos of 80 cases]. Ann Chir 1965; 19:1096-103. [PMID: 5321687] [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: 01/14/2023]
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