en las parsonas que padecen de tabaquismo y alcohol, estss se comportan como una anafilaxia; una especie de reaccion alergica. con el tabaco, se van a producir cambios de epitelios a nivel bronquial, conservandoce las celulas caliciformes productoras de mucus.a nivel del ojo cambios en la calidad del cristalino y esclerotica bulbar, daños a en los vasos arteriales y venosos. in people who suffer from smoking and alcohol use, these behave as anaphylaxis, a kind of allergic reaction. with snuff, changes will occur at bronchial epithelia, conserving itself producing goblet cells mucus.a eye level changes in the quality of the lens and sclera bulbar damage in arterial and venous vessels 在遭受吸煙和酗酒的人，這些表現為過敏性反應，是一種過敏性反應。鼻煙的變化將發生在支氣管上皮細胞，節約生產杯狀細胞本身mucus.a眼水平變化的鏡頭質量和鞏膜延髓損傷動脈和靜脈血管。
Alzheimer's disease (AD) has become a growing problem in the medical, psychiatric, neurological, epidemiological, social and economic order, particularly in countries with a high life expectancy Alzheimer's dementia can be classified according to the age of onset in presenile or early onset, which appears before age 65 and senile or late onset, ie onset after age 65. It according to the presence or absence of a family history of the disease is classified into familial AD and sporadic AD, respectively. However, these classifications are not mutually exclusive. The development achieved by genetic has demonstrated the involvement of several chromosomes in the development of the disease. Chromosomes 1, 14 and 21 are associated with familial forms of start precoz. While late onset forms appear linked to chromosomes 12 and 19 In this paper we delved into the study of chromosome 21 and the amyloid beta protein , because there are many findings that relate to deposit excess am...
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