Current evidence shows that apolipoprotein E （APOE）, apolipoprotein CI （APOC1） and low density lipoprotein receptor-related protein （LRP） variations are related to late-onset Alzheimer＇s disease. However, it re...Current evidence shows that apolipoprotein E （APOE）, apolipoprotein CI （APOC1） and low density lipoprotein receptor-related protein （LRP） variations are related to late-onset Alzheimer＇s disease. However, it remains unclear if genetic polymorphisms in these genes are associated with cognitive decline in late-onset Alzheimer＇s disease patients. We performed a 30-month longitudi- nal cohort study to investigate the relationship between Alzheimer＇s disease and APOE, APOC1, and LRP. In this study, 78 Chinese Han patients with late-onset Alzheimer＇s disease were recruit- ed form Guangxi Zhuang Autonomous Region in China. APOE, APOC1, and LRP genotyping was performed using polymerase chain reaction-restriction fragment length polymorphisms. The Mini-Mental State Examination and Clinical Dementia Rating Scale were used to assess pa- tients＇ cognitive function. After a 30-month follow-up period, we found a significant reduction in Mini-Mental State Examination total score, a higher proportion of patients fulfilling cognitive impairment progression criteria, and a higher proportion of APOC1 H2 carriers in APOE 4 carriers compared with non-carriers. In addition, the APOE 4 allele frequency was significantly higher in the cognitive impairment progression group compared with the non-cognitive im- pairment progression group. In conclusion, APOE e4 plays an important role in augmenting cognitive decline, and APOC1 H2 may act synergistically with APOE ~4 in increasing the risk of cognitive decline in Chinese patients with late-onset Alzheimer＇s disease.展开更多
Background: Cognitive impairment (CI) is a common manifestation of multiple sclerosis (MS), which can severely affect patients’ and their families’ life. Early suspicion and detection of CI can improve general medic...Background: Cognitive impairment (CI) is a common manifestation of multiple sclerosis (MS), which can severely affect patients’ and their families’ life. Early suspicion and detection of CI can improve general medical management of MS patients. Objectives: To correlate MS related CI to cortical brain lesions using brain magnetic resonance imaging (MRI). Materials and Methods: Cognitive impairment was detected using mini mental state examination (MMSE);Neurological examination and brain MRI were performed for all patients. Correlation was calculated between disease cortical burden detected by MRI and CI. Results: Fifty-three patients with proven MS were scanned by brain MRI;69.8% of them had cognitive impairment diagnosed with MMSE. The presence and severity of cognitive impairment was correlated to cortical brain lesion. Cognitive impairment was not correlated with non-cortical brain lesions or neurological physical disability measured by Expanded Disability Status Scale (EDSS). Conclusions: Presence of brain frontal cortical lesions detected by MRI in MS patients can predict subsequent development of MS-related CI.展开更多
基金supported by the National Natural Science Foundation of China,No.81370445,81061120527,81241082Major Funding from Beijing Hospital,No.BJ-2010-30+4 种基金Key Project of Clinical Disciplines at the Subordinate Hospital,Ministry of Health,No.10120101National Department Public Benefit Research Foundation by the Ministry of Health,No.20130200812th 5-year National Program from Ministry of Scientific Technology,No.2012BAI10B01Science and Technology Development Foundation of Guangxi Zhuang Autonomous Region,No.1355005-62Canadian Institute of Health Research(CIHR),No.109606
文摘Current evidence shows that apolipoprotein E （APOE）, apolipoprotein CI （APOC1） and low density lipoprotein receptor-related protein （LRP） variations are related to late-onset Alzheimer＇s disease. However, it remains unclear if genetic polymorphisms in these genes are associated with cognitive decline in late-onset Alzheimer＇s disease patients. We performed a 30-month longitudi- nal cohort study to investigate the relationship between Alzheimer＇s disease and APOE, APOC1, and LRP. In this study, 78 Chinese Han patients with late-onset Alzheimer＇s disease were recruit- ed form Guangxi Zhuang Autonomous Region in China. APOE, APOC1, and LRP genotyping was performed using polymerase chain reaction-restriction fragment length polymorphisms. The Mini-Mental State Examination and Clinical Dementia Rating Scale were used to assess pa- tients＇ cognitive function. After a 30-month follow-up period, we found a significant reduction in Mini-Mental State Examination total score, a higher proportion of patients fulfilling cognitive impairment progression criteria, and a higher proportion of APOC1 H2 carriers in APOE 4 carriers compared with non-carriers. In addition, the APOE 4 allele frequency was significantly higher in the cognitive impairment progression group compared with the non-cognitive im- pairment progression group. In conclusion, APOE e4 plays an important role in augmenting cognitive decline, and APOC1 H2 may act synergistically with APOE ~4 in increasing the risk of cognitive decline in Chinese patients with late-onset Alzheimer＇s disease.
文摘Background: Cognitive impairment (CI) is a common manifestation of multiple sclerosis (MS), which can severely affect patients’ and their families’ life. Early suspicion and detection of CI can improve general medical management of MS patients. Objectives: To correlate MS related CI to cortical brain lesions using brain magnetic resonance imaging (MRI). Materials and Methods: Cognitive impairment was detected using mini mental state examination (MMSE);Neurological examination and brain MRI were performed for all patients. Correlation was calculated between disease cortical burden detected by MRI and CI. Results: Fifty-three patients with proven MS were scanned by brain MRI;69.8% of them had cognitive impairment diagnosed with MMSE. The presence and severity of cognitive impairment was correlated to cortical brain lesion. Cognitive impairment was not correlated with non-cortical brain lesions or neurological physical disability measured by Expanded Disability Status Scale (EDSS). Conclusions: Presence of brain frontal cortical lesions detected by MRI in MS patients can predict subsequent development of MS-related CI.
