Research Article


DOI :10.26650/IUITFD.2020.0061   IUP :10.26650/IUITFD.2020.0061    Full Text (PDF)

EXPRESSION OF SELECTED miRNAs IN CIRCULATING BLOOD OF EARLY AND LATE-ONSET ALZHEIMER DISEASE PATIENTS

Gamze GüvenEbba LohmannÇağrı GüleçBaşar BilgiçEbru ÖzerHaşmet Ayhan Hanağasıİbrahim Hakan GürvitNihan Erginel Ünaltuna

Objective: Inflammation and associated microRNAs (miRNA) both play essential roles in the pathogenesis of Alzheimer’s disease (AD). The expression profile of miRNA’s in an AD brain, also reflected in the peripheral blood mononuclear cells, may give support to the inflammatory changes seen in the course of AD. We aimed to investigate the expression levels of specific inflammatory miRNAs (mir-146a, mir-144, mir-34a) in both blood leukocytes and plasma of AD patients and to evaluate their potential usability as biomarkers in AD diagnosis and to also demonstrate whether the expression of these miRNAs differ between early and late-onset AD patients. Methods: We investigated the expression levels of miRNAs in 16 early-onset and 26 late-onset AD patients and in their respective controls by using qRT-PCR. Results: Plasma mir-144 levels were significantly different between EOAD and LOAD patients (p=0.015). In addition, levels of leukocyte mir-34a were significantly down-regulated in EOAD compared to LOAD patients (p=0.027). Our results also showed significant positive correlations between age and plasma mir144 and leukocyte mir-34a expressions. Conclusion: The differential expression of plasma mir-144 and leukocyte mir-34a between EOAD and LOAD patients might reflect age-dependent changes in miRNA expression and might be independent of the disease status.

DOI :10.26650/IUITFD.2020.0061   IUP :10.26650/IUITFD.2020.0061    Full Text (PDF)

ERKEN VE GEÇ BAŞLANGIÇLI ALZHEIMER HASTALARININ PERİFERİK KANLARINDA SEÇİLMİŞ miRNA’LARIN ANLATIM DÜZEYİ

Gamze GüvenEbba LohmannÇağrı GüleçBaşar BilgiçEbru ÖzerHaşmet Ayhan Hanağasıİbrahim Hakan GürvitNihan Erginel Ünaltuna

Amaç: Enflamasyon ve ilişkili mikro RNA’lar (miRNA), Alzheimer hastalığının (AH) patogenezinde önemli rol oynamaktadırlar. AH beyininde görülen miRNA’ların anlatım profilindeki değişikliklerin periferal kan mononükleer hücrelerine de yansımış olması, AH sırasında görülen enflamatuar değişikliklerin bir göstergesi olabilir. Bu çalışmada, Alzheimer hastalarının hem periferal lökositlerinde hem de plazmalarında belirli enflamatuvar miRNA’ların (mir-146a, mir-144, mir-34a) anlatım düzeylerindeki değişiklikleri araştırmayı ve ve AH tanısında biyobelirteç olarak potansiyel kullanılabilirliklerini değerlendirmek. Ayrıca, bu miRNA’ların anlatımlarının erken ve geç başlangıçlı AH arasında farklılık gösterip göstermediğini belirlemeyi amaçladık. Gereç ve Yöntem: Gerçek zamanlı polimeraz zincir reaksiyonu yöntemini kullanarak 16 erken başlangıçlı ve 26 geç başlangıçlı AH hastası ve yaş-uyumlu kontrollerinde miRNA’ların anlatım düzeylerini araştırdık. Bulgular: Plazma mir-144 anlatım düzeyinin erken ve geç başlangıçlı AH hastaları arasında anlamlı farklılık gösterdiğini saptadık (p = 0.015). Ek olarak, lökosit mir-34a anlatım düzeyi erken başlangıçlı AH’de geç başlangıçlı AH hastalarına göre anlamlı derecede düşük bulundu (p = 0.027). Sonuçlarımız ayrıca, yaş ve plazma mir-144 (r=0.319, p=0.02) ile lökosit mir-34a (r=0.414, p=0.001) anlatım düzeyleri arasında anlamlı pozitif korelasyon olduğunu gösterdi. Sonuç: Bulgularımız erken ve geç başlangıçlı AH hastaları arasında plazma mir-144 ve lökosit mir-34a anlatımlarında görülen farklılığın miRNA ekspresyonundaki yaşa bağlı değişiklikleri yansıttığını ve hastalık durumundan bağımsız olabileceğini düşündürmektedir. 


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APA

Güven, G., Lohmann, E., Güleç, Ç., Bilgiç, B., Özer, E., Hanağası, H.A., Gürvit, İ.H., & Ünaltuna, N.E. (2021). EXPRESSION OF SELECTED miRNAs IN CIRCULATING BLOOD OF EARLY AND LATE-ONSET ALZHEIMER DISEASE PATIENTS. Journal of Istanbul Faculty of Medicine, 84(2), 165-174. https://doi.org/10.26650/IUITFD.2020.0061


AMA

Güven G, Lohmann E, Güleç Ç, Bilgiç B, Özer E, Hanağası H A, Gürvit İ H, Ünaltuna N E. EXPRESSION OF SELECTED miRNAs IN CIRCULATING BLOOD OF EARLY AND LATE-ONSET ALZHEIMER DISEASE PATIENTS. Journal of Istanbul Faculty of Medicine. 2021;84(2):165-174. https://doi.org/10.26650/IUITFD.2020.0061


ABNT

Güven, G.; Lohmann, E.; Güleç, Ç.; Bilgiç, B.; Özer, E.; Hanağası, H.A.; Gürvit, İ.H.; Ünaltuna, N.E. EXPRESSION OF SELECTED miRNAs IN CIRCULATING BLOOD OF EARLY AND LATE-ONSET ALZHEIMER DISEASE PATIENTS. Journal of Istanbul Faculty of Medicine, [Publisher Location], v. 84, n. 2, p. 165-174, 2021.


Chicago: Author-Date Style

Güven, Gamze, and Ebba Lohmann and Çağrı Güleç and Başar Bilgiç and Ebru Özer and Haşmet Ayhan Hanağası and İbrahim Hakan Gürvit and Nihan Erginel Ünaltuna. 2021. “EXPRESSION OF SELECTED miRNAs IN CIRCULATING BLOOD OF EARLY AND LATE-ONSET ALZHEIMER DISEASE PATIENTS.” Journal of Istanbul Faculty of Medicine 84, no. 2: 165-174. https://doi.org/10.26650/IUITFD.2020.0061


Chicago: Humanities Style

Güven, Gamze, and Ebba Lohmann and Çağrı Güleç and Başar Bilgiç and Ebru Özer and Haşmet Ayhan Hanağası and İbrahim Hakan Gürvit and Nihan Erginel Ünaltuna. EXPRESSION OF SELECTED miRNAs IN CIRCULATING BLOOD OF EARLY AND LATE-ONSET ALZHEIMER DISEASE PATIENTS.” Journal of Istanbul Faculty of Medicine 84, no. 2 (May. 2024): 165-174. https://doi.org/10.26650/IUITFD.2020.0061


Harvard: Australian Style

Güven, G & Lohmann, E & Güleç, Ç & Bilgiç, B & Özer, E & Hanağası, HA & Gürvit, İH & Ünaltuna, NE 2021, 'EXPRESSION OF SELECTED miRNAs IN CIRCULATING BLOOD OF EARLY AND LATE-ONSET ALZHEIMER DISEASE PATIENTS', Journal of Istanbul Faculty of Medicine, vol. 84, no. 2, pp. 165-174, viewed 21 May. 2024, https://doi.org/10.26650/IUITFD.2020.0061


Harvard: Author-Date Style

Güven, G. and Lohmann, E. and Güleç, Ç. and Bilgiç, B. and Özer, E. and Hanağası, H.A. and Gürvit, İ.H. and Ünaltuna, N.E. (2021) ‘EXPRESSION OF SELECTED miRNAs IN CIRCULATING BLOOD OF EARLY AND LATE-ONSET ALZHEIMER DISEASE PATIENTS’, Journal of Istanbul Faculty of Medicine, 84(2), pp. 165-174. https://doi.org/10.26650/IUITFD.2020.0061 (21 May. 2024).


MLA

Güven, Gamze, and Ebba Lohmann and Çağrı Güleç and Başar Bilgiç and Ebru Özer and Haşmet Ayhan Hanağası and İbrahim Hakan Gürvit and Nihan Erginel Ünaltuna. EXPRESSION OF SELECTED miRNAs IN CIRCULATING BLOOD OF EARLY AND LATE-ONSET ALZHEIMER DISEASE PATIENTS.” Journal of Istanbul Faculty of Medicine, vol. 84, no. 2, 2021, pp. 165-174. [Database Container], https://doi.org/10.26650/IUITFD.2020.0061


Vancouver

Güven G, Lohmann E, Güleç Ç, Bilgiç B, Özer E, Hanağası HA, Gürvit İH, Ünaltuna NE. EXPRESSION OF SELECTED miRNAs IN CIRCULATING BLOOD OF EARLY AND LATE-ONSET ALZHEIMER DISEASE PATIENTS. Journal of Istanbul Faculty of Medicine [Internet]. 21 May. 2024 [cited 21 May. 2024];84(2):165-174. Available from: https://doi.org/10.26650/IUITFD.2020.0061 doi: 10.26650/IUITFD.2020.0061


ISNAD

Güven, Gamze - Lohmann, Ebba - Güleç, Çağrı - Bilgiç, Başar - Özer, Ebru - Hanağası, HaşmetAyhan - Gürvit, İbrahimHakan - Ünaltuna, NihanErginel. EXPRESSION OF SELECTED miRNAs IN CIRCULATING BLOOD OF EARLY AND LATE-ONSET ALZHEIMER DISEASE PATIENTS”. Journal of Istanbul Faculty of Medicine 84/2 (May. 2024): 165-174. https://doi.org/10.26650/IUITFD.2020.0061



TIMELINE


Submitted15.05.2020
Accepted07.09.2020
Published Online09.03.2021

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