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Zeroing in on Alzheimer's disease

Date:
May 31, 2011
Source:
BioMed Central
Summary:
Recently the number of genes known to be associated with Alzheimer's disease has increased from four to eight, including the MS4A gene cluster on chromosome 11. New research has expanded on this using a genome-wide association study to find a novel location within the MS4A gene cluster which is associated with Alzheimer's disease.

Recently the number of genes known to be associated with Alzheimer's disease has increased from four to eight, including the MS4A gene cluster on chromosome 11. New research published in BioMed Central's open access journal Genome Medicine has expanded on this using a genome-wide association study (GWAS) to find a novel location within the MS4A gene cluster which is associated with Alzheimer's disease.

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Alzheimer's disease is the most common cause of dementia in the developed world. It irrevocably destroys cells in the brain that are responsible for intellectual ability and memory. Despite continued investigation, the causes of Alzheimer's disease are not yet fully understood but they are thought to be a mixture of genetic and environmental factors. Several studies have used GWAS to search the entire human genome for genes which are mutated in Alzheimer's sufferers in the hope of finding a way to treat or slow down the disease.

A team of researchers across Spain and USA sponsored by non-profit Fundación Alzheimur (Comunidad Autónoma de la Región de Murcia) and Fundació ACE Institut Català de Neurociències Aplicades performed their own GWAS study using patients with Alzheimer's disease, and non-affected controls, from Spain and then combined their results with four public GWAS data sets. Dr Agustín Ruiz said, "Combining these data sets allowed us to look more accurately at small genetic defects. Using this technique we were able to confirm the presence of mutations (SNP) known to be associated with Alzheimer's disease, including those within the MS4A cluster, and we also found a novel site."

Dr Ruiz continued, "Several of the 16 genes within the MS4A cluster are implicated in the activities of the immune system and are probably involved in allergies and autoimmune disease. MS4A2 in particular has been linked to aspirin-intolerant asthma. Our research provides new evidence for a role of the immune system in the progression of Alzheimer's disease."


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The above story is based on materials provided by BioMed Central. Note: Materials may be edited for content and length.


Journal Reference:

  1. Carmen Antunez, Mercè Boada, Antonio Gonzalez-Perez, Javier Gayan, Reposo Ramirez-Lorca, Juan Marín, Isabel Hernandez, Concha Moreno-Rey, Francisco J Morón, Jesús López-Arrieta, Ana Mauleón, Maitée Rosende Roca, Fuensanta Noguera-Perea, Agustina Legaz-García, Laura Vivancos-Moreau, Juan Velasco, José M Carrasco, Montserrat Alegret, Martirio Antequera-torres, Salvadora Manzanares, Alejandro Romo, Irene Blanca, Susana Ruiz, Anna Espinosa, Sandra Castaño, Blanca García, Begoña Martínez-Herrada, Georgina Vinyes, Asunción Lafuente, James T Becker, José J Galán, Manuel Serrano-Ríos, Lluis Tárraga, María E Sáez, Enrique Vázquez, Oscar L López, Luis M Real and Agustín Ruiz. The membrane-spanning 4-domains, subfamily A (MS4A) gene cluster contains a common variant associated with Alzheimer's disease. Genome Medicine, 2011

Cite This Page:

BioMed Central. "Zeroing in on Alzheimer's disease." ScienceDaily. ScienceDaily, 31 May 2011. <www.sciencedaily.com/releases/2011/05/110531085001.htm>.
BioMed Central. (2011, May 31). Zeroing in on Alzheimer's disease. ScienceDaily. Retrieved October 30, 2014 from www.sciencedaily.com/releases/2011/05/110531085001.htm
BioMed Central. "Zeroing in on Alzheimer's disease." ScienceDaily. www.sciencedaily.com/releases/2011/05/110531085001.htm (accessed October 30, 2014).

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