Home Health Microbial infections: possible causes of Alzheimer’s disease bring new hope for treatment-BBC News

Microbial infections: possible causes of Alzheimer’s disease bring new hope for treatment-BBC News

by news dir
  • David Robson
  • (David Robson)

Image source,Getty Images

Scientists first discovered more than 150 years ago that bacteria invisible to the naked eye can cause infectious diseases such as cholera, typhoid fever, and tuberculosis. After this discovery, the theory of microbial pathogenicity quickly gained wide acceptance, but the “bacterial theory” has continued to produce amazing discoveries ever since, which has had a huge impact on many seemingly unrelated fields of medicine.

However, it was not until the 1980s that two Australian scientists discovered that Helicobacter pylori can cause stomach ulcers. Prior to this, the medical community blamed the onset of gastric ulcers on mental stress, smoking, and alcoholism. Scientists contemporaneous with these two Australian researchers thought their theory was “ridiculous” at the time, but in the end this discovery was confirmed and the two Australian scientists were awarded the Nobel Prize in Physiology and Medicine in 2005.

The discovery that human papillomavirus can cause cervical cancer was also controversial at the time, but the human papillomavirus vaccine is now saving the lives of thousands of women. Scientists estimate that about 12% of human cancers are caused by viruses.

Mankind’s understanding of Alzheimer’s disease may also be undergoing a similar theoretical revolution. Lifestyle and genetic factors certainly have an impact on Alzheimer’s disease. But now it seems that the culprit is the common viruses and bacteria that cause us to contract herpes labialis and periodontal disease. It is more and more likely that these viruses and bacteria infiltrate the human brain for a long time and eventually cause the death of nerve tissues. It leads to irreparable deterioration of patients’ cognitive ability and memory. If this hypothesis is confirmed, then microbial infection may be one of the main causes of Alzheimer’s disease.

Related Articles

Leave a Comment

This site uses Akismet to reduce spam. Learn how your comment data is processed.