PMID- 18992723 OWN - NLM STAT- MEDLINE DCOM- 20090219 LR - 20221207 IS - 1872-6240 (Electronic) IS - 0006-8993 (Linking) VI - 1247 DP - 2009 Jan 9 TI - Expression and genetic analysis of tumor necrosis factor-alpha (TNF-alpha) G-308A polymorphism in sporadic Alzheimer's disease in a Southern China population. PG - 178-81 LID - 10.1016/j.brainres.2008.10.019 [doi] AB - Alzheimer's disease (AD) is one of most common chronic neurodegenerative diseases in the elderly. Tumor necrosis factor-alpha (TNF-alpha) was found elevated markedly in the serum and the cerebral spinal fluid of AD patients. And the elevation of TNF-alpha was thought to be associated with the occurrence of AD in China. However, it is still unclear whether the TNF-alpha polymorphism is related to the sporadic Alzheimer's disease (SAD) in China as well. Hence, in this study, we try to investigate the relationship between TNF-alpha G-308A polymorphism and its susceptibility to SAD in a Southern China population. The polymerase chain reaction-sequence specific primers (PCR-SSP) was performed to detect the frequencies of genotypes and alleles of TNF-alpha in 112 SAD patients and 121 controls. And the levels of TNF-alpha in serum were measured by radioimmunoassay. The differences of polymorphic distribution and the levels of TNF-alpha in serum between groups were then analyzed, and odds ratio was computed for association analysis. The frequency of A-allele was significantly increased in patients with SAD compared with that of the controls (chi(2)=4.256, P=0.039). A significantly increased risk of SAD was observed in the carriers of A-allele (OR=2.635, 95% CI 1.027-6.763, P<0.01). In parallel, the serum level of TNF-alpha in SAD group was much higher than that in control group (chi(2)=10.21, P=0.0042). And the elevation of serum level of TNF-alpha was closely associated with the risk of SAD (OR=3.542, 95% CI 2.304-8.854, P<0.05) as well. These results suggested that the TNF-alpha gene G-308A polymorphism might be a risk factor for SAD in Southern China. A-allele might play a role in the susceptibility of SAD. FAU - Yang, Lianhong AU - Yang L AD - Department of Neurology, The Second Affiliated Hospital, Sun Yat-Sen University, Guangzhou, 510120, PR China. FAU - Lu, Ruiyan AU - Lu R FAU - Jiang, Longyuan AU - Jiang L FAU - Liu, Zhonglin AU - Liu Z FAU - Peng, Ying AU - Peng Y LA - eng PT - Journal Article DEP - 20081101 PL - Netherlands TA - Brain Res JT - Brain research JID - 0045503 RN - 0 (Genetic Markers) RN - 0 (Tumor Necrosis Factor-alpha) SB - IM MH - Aged MH - Aged, 80 and over MH - Alzheimer Disease/blood/ethnology/*genetics MH - Asian People/genetics MH - Brain Chemistry/*genetics MH - China/ethnology MH - DNA Mutational Analysis MH - Female MH - Gene Frequency/genetics MH - Genetic Markers/genetics MH - Genetic Predisposition to Disease/*genetics MH - Genetic Testing MH - Genotype MH - Humans MH - Male MH - Middle Aged MH - Mutation/genetics MH - Polymorphism, Genetic/*genetics MH - Tumor Necrosis Factor-alpha/blood/*genetics MH - Up-Regulation/genetics EDAT- 2008/11/11 09:00 MHDA- 2009/02/20 09:00 CRDT- 2008/11/11 09:00 PHST- 2008/08/19 00:00 [received] PHST- 2008/09/29 00:00 [revised] PHST- 2008/10/04 00:00 [accepted] PHST- 2008/11/11 09:00 [entrez] PHST- 2008/11/11 09:00 [pubmed] PHST- 2009/02/20 09:00 [medline] AID - S0006-8993(08)02509-2 [pii] AID - 10.1016/j.brainres.2008.10.019 [doi] PST - ppublish SO - Brain Res. 2009 Jan 9;1247:178-81. doi: 10.1016/j.brainres.2008.10.019. Epub 2008 Nov 1.