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
With the increasing use of antibiotics and rare earth elements(REE)during the coronavirus disease(COVID-19)pandemic,the co-occurrence of sulfamethoxazole(SMX)and gadolinium(Gd)has increased in wastewater treatment pla...With the increasing use of antibiotics and rare earth elements(REE)during the coronavirus disease(COVID-19)pandemic,the co-occurrence of sulfamethoxazole(SMX)and gadolinium(Gd)has increased in wastewater treatment plants(WWTPs).However,the effects of SMX and Gd exposure on the transmission of antibiotic resistance genes(ARGs)and heavy metal resistance genes(MRGs)remain unknown.This study investigated the impacts of SMX and Gd on the fate of ARGs and MRGs in an activated sludge system.The diversity and relative abundance of ARGs,MRGs,and mobile genetic elements(MGEs)were detected by metagenomic sequencing.The results revealed an increased abundance of ARGs but a decreased abundance of MRGs under the joint effect of SMX and Gd.In addition,Gd alone exerted adverse effects on the proliferation and spread of ARGs and MRGs.However,SMX alone resulted in an increase in the diversity of ARGs and MRGs and promoted the growth of Pseudomonas,Thauera,and Streptomyces in the activated sludge system.Interestingly,a positive correlation was observed between most ARGs and MGEs.These findings provide comprehensive insights into the effects of co-occurring REEs and antibiotics on the fate of ARGs,MRGs,and MGEs,providing evidence to assist in controlling the spread and proliferation of ARGs and MRGs in activated sludge systems.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.
基金supported by the National Key R&D Program of China(No.2019YFC0408500).
文摘With the increasing use of antibiotics and rare earth elements(REE)during the coronavirus disease(COVID-19)pandemic,the co-occurrence of sulfamethoxazole(SMX)and gadolinium(Gd)has increased in wastewater treatment plants(WWTPs).However,the effects of SMX and Gd exposure on the transmission of antibiotic resistance genes(ARGs)and heavy metal resistance genes(MRGs)remain unknown.This study investigated the impacts of SMX and Gd on the fate of ARGs and MRGs in an activated sludge system.The diversity and relative abundance of ARGs,MRGs,and mobile genetic elements(MGEs)were detected by metagenomic sequencing.The results revealed an increased abundance of ARGs but a decreased abundance of MRGs under the joint effect of SMX and Gd.In addition,Gd alone exerted adverse effects on the proliferation and spread of ARGs and MRGs.However,SMX alone resulted in an increase in the diversity of ARGs and MRGs and promoted the growth of Pseudomonas,Thauera,and Streptomyces in the activated sludge system.Interestingly,a positive correlation was observed between most ARGs and MGEs.These findings provide comprehensive insights into the effects of co-occurring REEs and antibiotics on the fate of ARGs,MRGs,and MGEs,providing evidence to assist in controlling the spread and proliferation of ARGs and MRGs in activated sludge systems.