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postgraduate thesis: Circulating microRNAs in plasma as novel biomarkers of Alzheimer's disease
Title | Circulating microRNAs in plasma as novel biomarkers of Alzheimer's disease |
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Authors | |
Issue Date | 2015 |
Publisher | The University of Hong Kong (Pokfulam, Hong Kong) |
Citation | Zhang, Z. [张志刚]. (2015). Circulating microRNAs in plasma as novel biomarkers of Alzheimer's disease. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b5659889 |
Abstract | Alzheimer’s disease (AD) is the most common and complex neurodegenerative disorder. Although it has been over a hundred years since AD was originally described, the exact underlying mechanism remains largely elusive and no curative drugs are available for AD treatment. Early diagnosis of AD is believed to be essential for effective administration of drugs targeting. However, there are still no prefect biomarkers for AD diagnosis. Recent findings suggest that microRNAs (miRNAs) in the circulating system act as potential biomarkers for AD.
In the present study, we extracted total RNAs from the plasma of 12 Chinese AD patients and 6normal controls. Eight miRNA candidates (miR-29a, -125b, -146b, let-7f, -181a, -30c, -128 and -16) were selected and their expression profiles in plasma were measured using qRT-PCR (quantitative reverse transcription polymerase chain reaction). Our data demonstrated that plasma miR-128 was significantly down-regulated in AD patients compared with control subjects. Moreover, plasma miR-128 levels significantly correlated with protein markers in cerebrospinal fluid(CSF) and Mini Mental State Examination(MMSE) scores of the subjects. Importantly, plasma miR-128 showed good accuracy to distinguish AD patients from control subjects based on receiver operating characteristic (ROC) curve analysis.
In conclusion, our results indicated that miR-128in plasma could be a potential non-invasive biomarker of AD. |
Degree | Master of Medical Sciences |
Subject | Alzheimer's disease - Diagnosis Small interfering RNA |
Dept/Program | Biomedical Sciences |
Persistent Identifier | http://hdl.handle.net/10722/221504 |
HKU Library Item ID | b5659889 |
DC Field | Value | Language |
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dc.contributor.author | Zhang, Zhigang | - |
dc.contributor.author | 张志刚 | - |
dc.date.accessioned | 2015-11-26T23:38:15Z | - |
dc.date.available | 2015-11-26T23:38:15Z | - |
dc.date.issued | 2015 | - |
dc.identifier.citation | Zhang, Z. [张志刚]. (2015). Circulating microRNAs in plasma as novel biomarkers of Alzheimer's disease. (Thesis). University of Hong Kong, Pokfulam, Hong Kong SAR. Retrieved from http://dx.doi.org/10.5353/th_b5659889 | - |
dc.identifier.uri | http://hdl.handle.net/10722/221504 | - |
dc.description.abstract | Alzheimer’s disease (AD) is the most common and complex neurodegenerative disorder. Although it has been over a hundred years since AD was originally described, the exact underlying mechanism remains largely elusive and no curative drugs are available for AD treatment. Early diagnosis of AD is believed to be essential for effective administration of drugs targeting. However, there are still no prefect biomarkers for AD diagnosis. Recent findings suggest that microRNAs (miRNAs) in the circulating system act as potential biomarkers for AD. In the present study, we extracted total RNAs from the plasma of 12 Chinese AD patients and 6normal controls. Eight miRNA candidates (miR-29a, -125b, -146b, let-7f, -181a, -30c, -128 and -16) were selected and their expression profiles in plasma were measured using qRT-PCR (quantitative reverse transcription polymerase chain reaction). Our data demonstrated that plasma miR-128 was significantly down-regulated in AD patients compared with control subjects. Moreover, plasma miR-128 levels significantly correlated with protein markers in cerebrospinal fluid(CSF) and Mini Mental State Examination(MMSE) scores of the subjects. Importantly, plasma miR-128 showed good accuracy to distinguish AD patients from control subjects based on receiver operating characteristic (ROC) curve analysis. In conclusion, our results indicated that miR-128in plasma could be a potential non-invasive biomarker of AD. | - |
dc.language | eng | - |
dc.publisher | The University of Hong Kong (Pokfulam, Hong Kong) | - |
dc.relation.ispartof | HKU Theses Online (HKUTO) | - |
dc.rights | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. | - |
dc.rights | The author retains all proprietary rights, (such as patent rights) and the right to use in future works. | - |
dc.subject.lcsh | Alzheimer's disease - Diagnosis | - |
dc.subject.lcsh | Small interfering RNA | - |
dc.title | Circulating microRNAs in plasma as novel biomarkers of Alzheimer's disease | - |
dc.type | PG_Thesis | - |
dc.identifier.hkul | b5659889 | - |
dc.description.thesisname | Master of Medical Sciences | - |
dc.description.thesislevel | Master | - |
dc.description.thesisdiscipline | Biomedical Sciences | - |
dc.description.nature | published_or_final_version | - |
dc.identifier.doi | 10.5353/th_b5659889 | - |
dc.identifier.mmsid | 991018067349703414 | - |