MAPT allele and haplotype frequencies in Nigerian Africans : Population distribution and association with Parkinson's disease risk and age at onset
Copyright © 2023. Published by Elsevier Ltd..
INTRODUCTION: The association between MAPT and PD risk may be subject to ethnic variability even within populations of similar geographical origin. Data on MAPT haplotype frequencies, and its association with PD risk in black Africans are lacking. We aimed to determine the frequencies of MAPT haplotypes and their role as risk factors for PD and age at onset in Nigerians.
METHODS: The haplotype and genotype frequencies of MAPT rs1052553 were analysed in 907 individuals with PD and 1022 age-matched healthy controls from the Nigeria Parkinson's Disease Research network cohort. Clinical data related to PD included age at study, age at onset (AAO), and disease duration.
RESULTS: The frequency of the H1 haplotype was 98.7% in PD, and 99.1% in controls (p = 0.19). The H2 haplotype was present in - 1.3% of PD and 0.9% of controls (p = 0.24). The most frequent MAPT genotype was H1H1 (PD - 97.5%, controls - 98.2%). The H1 haplotype was not associated with PD risk after accounting for gender and AAO (Odds ratio for H1/H1 vs H1/H2 and H2/H2: 0.68 (95% CI:0.39-1.28); p = 0.23).
CONCLUSIONS: Our findings support previous studies that report a low frequency of the MAPT H2 haplotype in black ancestry Africans but document its occurrence in Nigerians. The MAPT H1 haplotype was not associated with an increased risk or age at onset of PD in this cohort.
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Medienart: |
E-Artikel |
Erscheinungsjahr: |
2023 |
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Erschienen: |
2023 |
Enthalten in: |
Zur Gesamtaufnahme - volume:113 |
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Enthalten in: |
Parkinsonism & related disorders - 113(2023) vom: 15. Aug., Seite 105517 |
Sprache: |
Englisch |
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Date Completed 21.08.2023 Date Revised 21.08.2023 published: Print-Electronic UpdateOf: medRxiv. 2023 Mar 24;:. - PMID 36993627 Citation Status MEDLINE |
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doi: |
10.1016/j.parkreldis.2023.105517 |
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PPN (Katalog-ID): |
NLM359681123 |
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100 | 1 | |a Okunoye, Olaitan |e verfasserin |4 aut | |
245 | 1 | 0 | |a MAPT allele and haplotype frequencies in Nigerian Africans |b Population distribution and association with Parkinson's disease risk and age at onset |
264 | 1 | |c 2023 | |
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500 | |a Date Revised 21.08.2023 | ||
500 | |a published: Print-Electronic | ||
500 | |a UpdateOf: medRxiv. 2023 Mar 24;:. - PMID 36993627 | ||
500 | |a Citation Status MEDLINE | ||
520 | |a Copyright © 2023. Published by Elsevier Ltd. | ||
520 | |a INTRODUCTION: The association between MAPT and PD risk may be subject to ethnic variability even within populations of similar geographical origin. Data on MAPT haplotype frequencies, and its association with PD risk in black Africans are lacking. We aimed to determine the frequencies of MAPT haplotypes and their role as risk factors for PD and age at onset in Nigerians | ||
520 | |a METHODS: The haplotype and genotype frequencies of MAPT rs1052553 were analysed in 907 individuals with PD and 1022 age-matched healthy controls from the Nigeria Parkinson's Disease Research network cohort. Clinical data related to PD included age at study, age at onset (AAO), and disease duration | ||
520 | |a RESULTS: The frequency of the H1 haplotype was 98.7% in PD, and 99.1% in controls (p = 0.19). The H2 haplotype was present in - 1.3% of PD and 0.9% of controls (p = 0.24). The most frequent MAPT genotype was H1H1 (PD - 97.5%, controls - 98.2%). The H1 haplotype was not associated with PD risk after accounting for gender and AAO (Odds ratio for H1/H1 vs H1/H2 and H2/H2: 0.68 (95% CI:0.39-1.28); p = 0.23) | ||
520 | |a CONCLUSIONS: Our findings support previous studies that report a low frequency of the MAPT H2 haplotype in black ancestry Africans but document its occurrence in Nigerians. The MAPT H1 haplotype was not associated with an increased risk or age at onset of PD in this cohort | ||
650 | 4 | |a Journal Article | |
650 | 4 | |a Research Support, N.I.H., Extramural | |
650 | 4 | |a Research Support, N.I.H., Intramural | |
650 | 4 | |a Research Support, Non-U.S. Gov't | |
650 | 4 | |a Africa | |
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