Causes of Alzheimer’s disease 1. Genetic factors: Many studies at home and abroad have proved that the offspring of Alzheimer’s patients have more chances to develop this disease. However, the mode of inheritance is still unclear. Some people believe that it is a dominant gene inheritance; others believe that it is a recessive gene inheritance; others believe that it is a polygenic autosomal recessive inheritance, and the genetic effect can be restricted by environmental factors and mutations of genetic factors, which interrupt its genetic effect. Some studies also believe that Alzheimer’s is a non-genetic disease, such as vascular dementia is not directly related to genetics.
2.Nutritional and metabolic disorders: The brain tissue and its function are damaged due to nutritional and metabolic disorders, leading to dementia. Such as various organ-induced encephalopathy, like nephrogenic encephalopathy, ischemia and hypoxia of the brain caused by chronic renal failure and uremia, which can lead to dementia; others such as hepatic encephalopathy and pulmonary encephalopathy can cause dementia.
3, tumors: malignant tumors cause metabolic disorders can lead to dementia, brain tumors can also directly damage brain tissue leading to dementia.
4, drugs and other substances poisoning: alcoholism, chronic sprinkler poisoning caused by Alzheimer’s disease is not uncommon, in is not yet recognized. Long-term exposure to aluminum, mercury, gold, silver, arsenic and lead, etc., poorly protected, causing chronic poisoning can lead to dementia. Carbon monoxide poisoning is also a common cause of acute dementia.